Commit Graph

914 Commits

Author SHA1 Message Date
Jonathan Hahn
7346ba0106 drivers: sensor: add const qualifier to conversion
sensor_value_to_double should never alter the given value of val.
Therefore adding a const qualifier makes sense.

Signed-off-by: Jonathan Hahn <Jonathan.Hahn@t-online.de>
2021-07-19 18:16:52 +03:00
Carlo Caione
bc30598456 drivers: syscon: Add generic syscon API
A syscon device is a device managing a memory region containing a set of
registers that are not cohesive enough to represent as any specific type
of device. We need a driver for that because several other drivers could
use the same region at the same time and we need to io-map the region at
boot for MMU enabled platforms.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2021-07-16 21:31:38 -04:00
Glauber Maroto Ferreira
9ae5fd1b34 esp32: drivers: interrupt_controller: add interrupt allocation support
Add interrupt allocation support for ESP32.

Signed-off-by: Glauber Maroto Ferreira <glauber.ferreira@espressif.com>
2021-07-16 07:19:28 -04:00
Gerard Marull-Paretas
26ad8376bd pm: remove callback from control function
The callback is not used anymore, so just delete it from the pm_control
callback signature.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-07-13 09:36:45 -04:00
Henrik Brix Andersen
d96e51bb7c drivers: hwinfo: add reset causes for PLL and clock
Add reset causes for PLL (e.g. PLL loss-of-lock reset) and clock
(e.g. loss-of-clock reset).

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2021-07-08 09:33:32 -05:00
Gerard Marull-Paretas
cc2f0e9c08 pm: use enum for device PM states
Move all PM_DEVICE_STATE_* definitions to an enum. The
PM_DEVICE_STATE_SET and PM_DEVICE_STATE_GET definitions have been kept
out of the enum since they do not represent any state. However, their
name has not been changed since they will be removed soon.

All drivers and tests have been adjusted accordingly.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-07-07 14:13:12 -04:00
Jordan Yates
2946a535a0 spi: struct spi_dt_spec helpers
Add helper functions to simplify the usage of `struct spi_dt_spec`.
Implements helpers for the standard synchronous calls (transceive, read,
write).

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
2021-07-02 21:34:16 -04:00
Jordan Yates
dcc04d9abd spi: introduce struct spi_dt_spec
Introduces the `struct spi_dt_spec` type, which contains the complete
SPI bus information derived from devicetree. It serves the same purpose
as `struct gpio_dt_spec` in that it can be constructed automatically in
`DEVICE_DT_INST_DEFINE` macros and provided as a single handle to SPI
API calls. Includes a single function, `spi_is_ready` that validates all
SPI bus dependencies are ready.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
2021-07-02 21:34:16 -04:00
Andrei Emeltchenko
a6dda9aa80 edac: Use -ENOSYS also for optional interfaces
Use -ENOSYS for all not implemented interfaces.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-06-30 18:29:21 -04:00
Andrei Emeltchenko
7b035bb67d edac: Use boolean expressions in if conditions
Use only boolean in if conditions as new coding style implies for edac
API header file.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-06-30 18:29:21 -04:00
Andrei Emeltchenko
7293587725 edac: Use -ENOSYS for not implemented mandatory API functions
Use standard Zephyr way for not implemented mandatory API functions.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-06-30 18:29:21 -04:00
Andrei Emeltchenko
f766d13b91 edac: docs: Use @retval instead of @return when applicable
Make documentation more readable by using @retval instead of @return
when applicable.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-06-30 18:29:21 -04:00
Andrei Emeltchenko
6dfe3f668a edac: Include error injection API to documentation
Remove #ifdefs making code cleaner and including error injection API
functions to documentation.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-06-30 18:29:21 -04:00
Andrei Emeltchenko
6622eccddb edac: Refactor EDAC API
Refactor EDAC API making it more clear, removing unneeded typedefs and
using check for optional and assert for mandatory APIs.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-06-30 18:29:21 -04:00
Andrei Emeltchenko
5567f498f6 edac: Introduce enum type for error type
Use edac_error_type enum type instead of defines for EDAC error types.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-06-30 18:29:21 -04:00
Gerard Marull-Paretas
72ab6b29bf doc: doxygen: replace option alias with kconfig
Similar to Sphinx, @kconfig{} alias should be used in Doxygen docstring
in order to reference a Kconfig option. @option{} is still kept for
compatibility reasons.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-06-29 10:26:28 -04:00
Jordan Yates
7ea37c9bb7 gpio: add additional gpio_spec_dt helpers
Add helpers to allow providing a `struct gpio_spec_dt` directly to
`gpio_pin_get`, `gpio_pin_set` and `gpio_pin_toggle` functions.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
2021-06-24 06:40:00 -05:00
Henrik Brix Andersen
588d22a755 drivers: ht16k33: convert keyscan driver from gpio API to kscan API
Convert the keyscan portion of the Holtek HT16K33 driver to adhere to
the kscan API instead of the GPIO API.

When this driver was introduced the kscan API was not present. The
keyscan driver was therefore implemented as a GPIO interrupt driver.

Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
2021-06-18 11:22:40 +02:00
Hake Huang
622a8e8256 usrt: basic_test: NOSYS return update for cases
NOSYS represent not support, so update case check

Signed-off-by: Hake Huang <hake.huang@oss.nxp.com>
2021-06-11 17:39:42 +02:00
Arvin Farahmand
a62c1eb0f2 docs: hwinfo: improve API documentation
Clarify documentation for `hwinfo_get_reset_cause`.

Signed-off-by: Arvin Farahmand <arvinf@ip-logix.com>
2021-06-10 15:56:44 -05:00
Arvin Farahmand
98a0ccd5c5 drivers: hwinfo: Add reset cause support
Add `hwinfo_get_reset_cause` and `hwinfo_clear_reset_cause` to retrieve
and to clear cause of system reset on supported platforms.

Different platforms can provide different causes of reset, however
there is a great deal of overlap. `enum reset_cause` can be expanded in
the future to support additional reasons, as additional platforms are
supported.

Signed-off-by: Arvin Farahmand <arvinf@ip-logix.com>
2021-06-08 10:16:17 +02:00
Gerard Marull-Paretas
45a6de6804 drivers: fix pm callback signature
For some reason a few drivers were not converted to the new device PM
callback signature. The reason may be because the device PM part is
compiled only when CONFIG_PM_DEVICE=y, a condition not enabled in CI by
default.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-06-04 08:16:49 -05:00
Alexander Wachter
5e0ca9b41e drivers: can: sjw == 0 in can_set_timing should not change sjw
If the supplied sjw in the timing parameters is zero,
the sjw parameter should not be changed.
This fixes the uninitialized swj in can_set_bitrate.

Signed-off-by: Alexander Wachter <alexander@wachter.cloud>
2021-06-01 07:29:36 -05:00
Anas Nashif
3d39f72a88 sensor: use function properties to document the context
We now have function properties which can replace the confusing message
in the doxygen docs.

Fixes #10499

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-05-29 08:01:17 -05:00
Gerard Marull-Paretas
1ec0b181ab drivers: display: fix doxygen issues
The way some structures were documented was causing issues on the
Sphinx/Breathe side. Move to a more "standard" format.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-05-19 06:21:53 -04:00
Anas Nashif
009dee157d doc: fix doxygen grouping
Fix various grouping issues in doxygen and name groups correctly in some
cases.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-05-17 11:51:44 -04:00
Hake Huang
13964780ea dma: change an atmoic api for Coverity issue 233524
use atomic_clear_bit instead of atomic_test_and_set_bit
which will not return old value, and thus more coverity friendy

Fixing: #35154

Signed-off-by: Hake Huang <hake.huang@oss.nxp.com>
2021-05-13 07:15:18 -05:00
Eug Krashtan
3c36cd4242 drivers: sensor: Add sensor_value_from_double
Add helper function to convert double to struct sensor_value.

Signed-off-by: Eug Krashtan <eug.krashtan@gmail.com>
2021-05-08 10:18:09 -05:00
Carlo Caione
f000695243 cache: Rename sys_{dcache,icache}_* to sys_{data,instr}_cache_*
To have a common prefix.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2021-05-08 07:00:33 +02:00
Carlo Caione
e2333269ae cache: Introduce external cache controller system support
The cache API currently shipped in Zephyr is assuming that the cache
controller is always on-core thus managed at the arch level. This is not
always the case because many SoCs rely on external cache controllers as
a peripheral external to the core (for example PL310 cache controller
and the L2Cxxx family). In some cases you also want a single driver to
control a whole set of cache controllers.

Rework the cache code introducing support for external cache
controllers.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2021-05-08 07:00:33 +02:00
Piotr Mienkowski
3632815e2e api: gpio: do not support INT flags in gpio_pin_configure
To keep compatibility between the old GPIO API implementation and a new
one introduced in the Zephyr 2.2.0 release the gpio_pin_configure()
function was accepting interrupt flags. In the new API implementation
interrupt flags are only accepted by gpio_pin_interrupt_configure()
function.

This temporary support for INT flags in gpio_pin_configure should have
been removed in the Zephyr 2.4.0 release.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2021-05-07 12:42:08 -05:00
Alexander Wachter
1c50ef6c43 drivers: can: Implement Bosch M_CAN driver
Implementation of the Bosch M_CAN IP driver.
This driver is just the base for a specific SoC implementation.

Signed-off-by: Alexander Wachter <alexander@wachter.cloud>
2021-05-07 12:36:10 -05:00
Alexander Wachter
2ccbfd661e drivers: can: Add Kconfig option for CANFD datalenght
Add Kconfig option to select appropriate can data field length

Signed-off-by: Alexander Wachter <alexander@wachter.cloud>
2021-05-07 12:36:10 -05:00
Tomasz Michalec
d83647dea6 drivers: adc: add ADC emulator
ADC emulator is designed to be used in tests on native_posix board. It
supports 1-16 bit resolution range and all GAINs from enum adc_gain.
Reference voltages and number of emulated channels are set through dts.
Using special API from drivers/adc/adc_emul.h it is possible to set
constant voltage value returned by given ADC channel or set custom
function which allows to simulate complex output.
Also reference voltages can be changed in runtime using the API.

The CL also includes:
- Add adc definitions of ADC emulator in
  tests/drivers/adc/adc_api/src/test_adc.c for supporting test suites.
- Add test for ADC emulator API in tests/drivers/adc/adc_emul/

Signed-off-by: Tomasz Michalec <tm@semihalf.com>
2021-05-07 15:27:37 +02:00
Gerard Marull-Paretas
dbf46b3815 pm: rename device_pm_cb to pm_device_cb
Prefix all device PM functions/data structures with pm.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-05-05 18:35:49 -04:00
Erwan Gouriou
080ffa5f4e include/drivers/clock_control: stm32: Fix apb1/2 conditions (wl/wb)
Fix definition condition for APB1 and APB2.
These were not visible until now as defaulted
in Kconfig.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-05-05 16:34:37 -05:00
Erwan Gouriou
edaeef1cea drivers/clock_control: stm32h7_m4: Don't rely on rcc "clocks" property
In prts of the code, we use rcc node "clocks" property to testify the
use of device tree for clocks configuration.
This doesn't work in case of stm32h7 m4 targets as for those,
"upstream rcc" clock configuration, such as sysclk source selection,
is done on m7 core and hence rcc node doesn't have a "clocks"
property.
To work around this, use alternate "d1cpre" property in case of
stm32h7 targets.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-05-05 16:34:37 -05:00
Erwan Gouriou
da01659032 include/drivers/clock_control: stm32: Deprecate use of Kconfig
Following introduction of dts based driver configuration (cf #34120,
#32609 and #34701), deprecate Kconfig symbols by generating a warning
when one of these symbols is used.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-05-05 16:34:37 -05:00
Martí Bolívar
60ab0af5db drivers: gpio: add GPIO_DT_SPEC_GET_OR and friends
These helper macros avoid boilerplate when constructing a gpio_dt_spec
structure from optional devicetree properties.

Update the release notes while we're here.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2021-05-05 20:46:43 +02:00
Kumar Gala
84064f00ea clock_control: Replace device_is_ready with device_usable_check
Use device_usable_check instead of device_is_ready so we can propagate
back whatever error that device_usable_check() determined to the caller
of the clock API.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2021-05-05 15:54:44 +02:00
Erwan Gouriou
c19c1cc961 dts/bindings: clocks: Add binding for stm32f100 pll
Add specific binding for stm32f100 pll which differs from existing
stm32f1 and stm32f105 specific pll binding.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-05-04 13:02:26 -05:00
Martí Bolívar
e869582338 led.h: clarify brightness API for on/off LEDs
This clarification makes Zephyr's LED brightness API match the
behavior that both the Android lights HAL and Linux's userspace LED
drivers expose.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2021-05-04 16:01:30 +02:00
Andrzej Głąbek
7fcf78073b drivers: i2s: Add missing const qualifiers
The i2s_config structure passed to the i2s_configure() function is
not supposed to be modified by the driver. Similarly, the structure
returned by the i2s_config_get() function is not supposed to be
modified outside the driver.
Decorate the pointers to those structures with the const qualifier
and correct one driver that actually modified the structure passed
to i2s_configure().

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2021-05-03 19:57:49 -04:00
Andrzej Głąbek
e4c7f4d62a drivers: i2s: Introduce the I2S_DIR_BOTH enumeration value
Introduce a new enumeration value that allows setting configuration
and triggering commands for both I2S streams simultaneously.
Such possibility is especially important on hardware where the streams
can be only enabled/disabled (but not started/stopped) independently,
like it is in nRF SoCs.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2021-05-03 19:57:49 -04:00
Arvin Farahmand
bc839c8707 drivers: uart: add support for collision detection error
Certain uarts support collision detection. This is mainly used in
half-duplex scenarios, like RS-485 and raises an error when bits
output on the TX line do not match the bits received on the RX line.

Signed-off-by: Arvin Farahmand <arvinf@ip-logix.com>
2021-05-03 19:57:07 -04:00
Erwan Gouriou
675990c5e1 include/drivers/clock_control: stm32: Bits for H7 dts clock config
Add required macros to introduce dts based clock_control driver
configuration on stm32h7 devices.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-05-03 10:56:05 +02:00
Daniel Leung
0ab8dc4d49 interrupt_controller: loapic: remove duplicate identifier
LOAPIC_TIMER is defined twice with same value, so remove one.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-04-29 21:09:54 -04:00
Erwan Gouriou
255c64bb94 include/drivers: clock_control: Add support for STM32WL bindings
Add support for STM32WL clocks bindings.

Additionally fix a spot where STM32WB was missing.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-29 16:41:26 +02:00
Erwan Gouriou
24969e8ab2 include/drivers: clock_control: Minor clean up on stm32 header
Reorder few lines for better readability.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-29 16:41:26 +02:00
Erwan Gouriou
8949f9b607 include/drivers: clock_control: Add support for STM32F7 bindings
Add support for STM32F7 clocks bindings.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-29 16:41:26 +02:00
Erwan Gouriou
276bcd724e include/drivers: clock_control: Add support for STM32L0 bindings
Add support for STM32L0 clocks bindings.

Also, add a small tweak to SYSCLK selection to factorize some lines.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-29 16:41:26 +02:00
Erwan Gouriou
68a29fc26d include/drivers: clock_control: Add support for STM32F2 bindings
Add support for STM32F2 clocks bindings.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-29 16:41:26 +02:00
Erwan Gouriou
0710aa69c3 include/drivers/clock_control: stm32: Update for F0/F3/G0/G4 support
Update macros for STM32F0/F3/G0/G4 clock configuration.
Additionally update matching drivers.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-29 16:41:26 +02:00
Erwan Gouriou
755d09e149 include/drivers/clock_control: stm32: Update for STM32F1 support
Add missing macros fro STM32F1 clock configuration

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-29 16:41:26 +02:00
Keith Short
e7a9775cca adc: Move ADC acquisition time macros
Move the ADC acquisition time macros so that they can be utiliized by
devicetrees.

Signed-off-by: Keith Short <keithshort@google.com>
2021-04-29 09:50:18 -04:00
Gerard Marull-Paretas
29733a8692 drivers: gpio: gpio_mmio32: remove usage of device_pm_control_nop
Replace usage of deprecated device_pm_control_nop with NULL.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-04-28 20:40:00 -04:00
Erwan Gouriou
6f27412c5e include/drivers/clock_control: stm32: Fixup to ensure backward compat
In order to ensure backward compatibility, use the dts config
only if nodes have prop "clocks".

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-28 16:43:51 -04:00
Erwan Gouriou
15130c9a1f include/drivers/clock_control: stm32: Fix typo in LSE definition
Fix typo to enjoy expected LSE setting

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-28 16:43:51 -04:00
Gerard Marull-Paretas
6a6ebcec11 drivers: gpio: extend struct gpio_dt_spec initializers
Extend the number of available initializers for the `struct
gpio_dt_spec` with:

- GPIO_DT_SPEC_GET_BY_IDX(): allows initialization from a specific index
- GPIO_DT_SPEC_INST_GET_BY_IDX(): instance version of
  GPIO_DT_SPEC_GET_BY_IDX()
- GPIO_DT_SPEC_INST_GET(): instance version of GPIO_DT_SPEC_GET()

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2021-04-28 18:17:23 +02:00
Erwan Gouriou
2691541ad2 drivers/clock_controller: stm32: Prepare for dts based configuration
To allow transition to device tree based clock configuration on
stm32 targets, rework clock_control driver to use intermediate
STM32_ macros initially defined as the equivalent Kconfig macros
for now.
Propagate the change in all code using these macros.

The reason to introduce these new macros instead of configuring
Kconfig flags using dt kconfigfunctions is that we'll need
to be able to inform users that Kconfig flags are deprecated
once the whole family conversion is done, to encourage
out of tree users to adopt this new configuration scheme.

Note: For now STM32H7 series and code is excluded.
This is the same for some series specific code such as
PLL mul/div for L0/L1 and XTRE prescaler on F1 series.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-04-27 11:53:37 +02:00
Jiafei Pan
77da035141 drivers: gicv3: fix getting rdist base address
In SMP, MPID is mybe not equal to cpu logic ID, so can't
use MPID to get rdist base address from gic_rdists[], this
patch get logic ID from arch_curr_cpu()->id, and
find current CPU's rdist base address from:
gic_rdists[cpu_logic_id]

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
2021-04-26 13:42:43 +02:00
Hake Huang
b609242903 dma: add request channel and release channel helper
add two dma api for dynamic channel reqest and release

Signed-off-by: Hake Huang <hake.huang@oss.nxp.com>
2021-04-23 14:58:40 +02:00
Kumar Gala
e1032ad2c3 include: Move emul.h to drivers/emul.h
Move emul.h out of the top level include/ dir into
include/drivers/emul.h and deprecated the old location.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2021-04-22 12:51:01 -04:00
Julien Massot
2ad6e4e376 drivers: clock_control: add R-Car CPG MSSR driver
Clock Pulse Generator, Module Standby Software Reset, are registers
presents in Renesas Gen3 SoC series.

MSSR is used to supply clock to the different modules, shuch as timer,
or UART, it's also possible to issue a reset the different module.

CPG registers allow to get the rate or to set some divider like for
the CAN clock.

Signed-off-by: Julien Massot <julien.massot@iot.bzh>
2021-04-22 10:38:45 +02:00
Jiafei Pan
46d7de1aad interrupt_controller: gic: add SMP support
Add the function to raise SGI, and initialize GICC for secondary
Cores.

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
2021-04-13 15:09:23 -04:00
Jiafei Pan
dd56080d9b interrupt_controller: gic: fix some macro definition
Add parenthesis for the parameters to avoid the issues if
parameter is an expression but not an immediate value.

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
2021-04-13 15:09:23 -04:00
Kumar Gala
365145aa97 drivers: gpio: mmio32: Make GPIO_MMIO32_INIT dt aware
Change the GPIO_MMIO32_INIT to take a devicetree node since we want
to use DEVICE_DT_DEFINE.  This makes it so that code using
GPIO_DT_SPEC_GET works correctly with GPIO controllers that utilize
GPIO MMIO32.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2021-04-13 00:25:35 -05:00
Carlo Caione
3539c2fbb3 arm/arm64: Make ARM64 a standalone architecture
Split ARM and ARM64 architectures.

Details:

- CONFIG_ARM64 is decoupled from CONFIG_ARM (not a subset anymore)
- Arch and include AArch64 files are in a dedicated directory
  (arch/arm64 and include/arch/arm64)
- AArch64 boards and SoC are moved to soc/arm64 and boards/arm64
- AArch64-specific DTS files are moved to dts/arm64
- The A72 support for the bcm_vk/viper board is moved in the
  boards/bcm_vk/viper directory

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2021-03-31 10:34:33 -05:00
Anas Nashif
3aab352361 drivers: video: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Anas Nashif
84f1cd6833 drivers: uart: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Anas Nashif
75fd7bc0a5 drivers: sensor: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Anas Nashif
0f92d760b0 drivers: pwm: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Anas Nashif
44fb8c7276 drivers: ps2: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Anas Nashif
ba4284bcc3 drivers: lora: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Anas Nashif
7f3cf38f16 drivers: led: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Also, explicitly check for NULL.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Anas Nashif
d24c4ef430 drivers: kscan: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Anas Nashif
0e3b774b80 drivers: i2c: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Anas Nashif
7f54c4dc31 drivers: clock_control: fix NOTSUP vs NOSYS usage
Return -ENOSYS when implementation is missing and -ENOTSUP if the
feature is not supported. Those are 2 things. Missing implementation
(-ENOSYS) means that the driver is lacking support for the feature,
-ENOTSUP means we have an implementation but some parameters or
conditions makes the request unsupported.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-30 10:50:14 -05:00
Andrzej Puzdrowski
f3109a7d61 include/drivers/flash: deprecation of flash_write_protection_set()
The API is deprecated as it was decided to build in the flash protection
service into write and erase procedures.
This is solution chosen for fix following issue:
  When two or more threads writes to flash device it is
  possible that flash protection will be enabled by one of
  threads despite another thread(s) still needs it disabled.

fixes #3127

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
2021-03-29 13:43:55 -04:00
Andrzej Puzdrowski
59a79969e8 include/drivers/flash: make write_protection handler optional
Made write_protection handler not mandatory.
flash_write_protection_set() becomes no-operation.
If write_protection handler is provided by the driver implementation
it will be called within flash_writ() and flash_erase().

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
2021-03-29 13:43:55 -04:00
Krzysztof Chruscinski
ab49673bc8 drivers: timer: nrf_rtc_timer: Change type of channel argument
There was an inconsistency in the API as z_nrf_rtc_timer_chan_alloc
returned int but other function were using uint32_t for channel
argument. Updated api to use int32_t everywhere.

Update nrf_802154 driver which was using this api to use int32_t.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-03-25 15:54:49 +01:00
Kumar Gala
0bb4665df7 include: Move ptp_clock.h to drivers/ptp_clock.h
Move ptp_clock.h out of the top level include/ dir into
include/drivers/ptp_clock.h and deprecated the old location.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2021-03-25 10:09:33 +02:00
Johann Fischer
45d468bfdb include: move disk driver interface to own header
Move disk driver interface to own header and
separate disk access interface and disk driver interface.

Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
2021-03-23 12:16:01 +01:00
Anas Nashif
5d6c219210 drivers: device: do not reuse tag name 'device'
Do not reuse tag name (misra rule 5.7).

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-22 19:48:14 -04:00
Hubert Miś
7d8f78a08b drv: display: Initial FT800 display driver
This patch includes initial support for FT800 display driver.
It includes basic features. It can be easily extended with more
FT800 display list and co-processor features.

Signed-off-by: Hubert Miś <hubert.mis@gmail.com>
2021-03-19 19:05:53 +01:00
Anas Nashif
11779e3faf doc: clocks: link clock APIs from doxygen
Use :c:func: where clock APIs are being used and link the group into
RST.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-19 11:22:17 -04:00
Anas Nashif
9c1efe6b4b clock: remove z_ from semi-public APIs
The clock/timer APIs are not application facing APIs, however, similar
to arch_ and a few other APIs they are available to implement drivers
and add support for new hardware and are documented and available to be
used outside of the clock/kernel subsystems.

Remove the leading z_ and provide them as clock_* APIs for someone
writing a new timer driver to use.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-03-19 11:22:17 -04:00
Kumar Gala
607469616d counters: Remove deprecated APIs
Remove support for counter_read and counter_get_max_relative_alarm as
they have been deprecated for at least 2 releases.  As part of the
removal of counter_get_max_relative_alarm remove the code in all
counter drivers that implemented the API.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2021-03-18 19:35:14 -04:00
Igor Knippenberg
79a3d1b85a drivers: sensors: fdc2x1x: Add driver for Texas Instruments FDC2X1X
Adds support for the Texas Instruments FDC2X1X Capacitance-to-Digital
Converter for Proximity and Level Sensing Applications.

Signed-off-by: Igor Knippenberg <igor.knippenberg@gmail.com>
2021-03-17 11:35:17 +01:00
Tomasz Bursztyka
915f4ac3c7 drivers/interrupt_controller: Get the IOAPIC RTEs dynamically
The fixed number of 24 RTEs is a legacy thing, and long gone by now.
IOAPICs expose the maximum number of RTEs they have via the version
register, so let's use it.

This avoids to manually tweak a Kconfig option (which is now removed)
and fixes the RTE number for all x86 targets relevantly.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2021-03-12 09:23:08 -05:00
Diwakar C
ddfb1316ee driver: peci: Add supported peci response codes
Add supported peci response codes 0x80 (Out of resources timeout)
and 0x81 (Resources required to service the command are in low
power state).

Signed-off-by: Diwakar C <diwakar.c@intel.com>
2021-03-10 17:12:05 -05:00
Martí Bolívar
d36c6a996e drivers: gpio: add struct gpio_dt_spec and helpers
This structure contains a GPIO device, pin number, and devicetree
flags. Add helpers for getting one out of the devicetree and doing
useful initialization tasks with it.

Fixes: #31280
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2021-03-06 09:13:00 -06:00
Peng Fan
5c1c5bbb5e interrupt_controller: intc_giv3: support SMP
Add SMP support.
Note: there is still limitation that we rely on NUM CPUs.
And all cpus must be from 0,1,2 and ....

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2021-03-06 07:36:37 -05:00
Carlo Caione
0f9406277d aarch64: pm_cpu_ops: Introduce pm_cpu_ops subsystem
AArch64 has support for PSCI. This is especially useful for SMP because
PSCI is used to power on the secordary cores.

When the PSCI driver was introduced in Zephyr it was designed to rely on
a very PSCI-centric subsystem / interface.

There are two kinds of problems with this choice:

1. PSCI is only defined for the non-secure world and it is designed to
   boot CPU cores into non-secure state (that means that PSCI is only
   supposed to work if Zephyr is running in non-secure state)

2. There can be other ways or standards used to start / stop a core
   different from PSCI

This patch is trying to fix the original wrong assumption by making the
interface / subsystem a generic one, called 'pm_cpu_ops', and using PSCI
only as an actual driver that is a user of this new interface /
subsystem.

For now the new subsystem is only exposing two methods: cpu_on and
cpu_off, others will probably follow according to the needs.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2021-03-04 06:53:19 -05:00
Martí Bolívar
d6cfa10b8f drivers: spi: add helpers for initializing from DT
Add helper macros for initializing a struct spi_sconfig for a SPI
device which is defined in the devicetree. They are available from C
only due to C++ compatibility issues.

For some fields, like 'frequency', we just get the value from the
standard devicetree property. For others, like the spi_cs_control
structure's 'gpio_dev', we rely on the new DEVICE_DT_GET() macro.

This patch does not change anything for controlling SPI devices that
aren't set up in devicetree. It is entirely a convenience for driver
and application code that relies on DT.

Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
2021-02-23 10:34:19 -05:00
Erwan Gouriou
5d2150efa4 drivers/interrupt_controller: stm32: Make use of DEVICE_DT API
Convert stm32 interrupt controller driver to DEVICE_DT API.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-02-17 14:26:23 -06:00
Peter Bigot
8f8cdc18c4 gpio: clean up flags related to logical initialization
The wrapper function detects when a logic-level initial value requires
inverting the physical level initial value, and updates the flags to
effect the necessary change.  However where logical and physical
levels are not inverted the flag requesting logic-level initialization
was left in place and passed to a driver that got confused by it.

Clear the flag after its purpose has been addressed.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2021-02-17 09:11:29 -06:00
Alexander Wachter
9a5525c316 include: clock_control: Fix int return value
The return value of clock_control_get_status is a clock_control_status
enum, but in case the device is not ready, an int is returned.
This leads to compiler errors. Introduced a new enum value
CLOCK_CONTROL_STATUS_UNAVAILABLE and return it instead of -ENODEV.

Signed-off-by: Alexander Wachter <alexander.wachter@leica-geosystems.com>
2021-02-17 14:28:50 +01:00
Kumar Gala
b275fec8c4 soc: stm32: convert to use DEVICE_DT_GET for clocks
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>
2021-02-16 17:01:37 -06:00
Johan Hedberg
d01fa56f6a drivers: pcie: Introduce API to look up devices by ID
In some cases we cannot know the BDF up-front, so provide a way to
look it up based on the vendor and device ID.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2021-02-15 08:23:05 -05:00
Johan Hedberg
14da6014a3 drivers: pcie: Move MAX_BUS/DEV/FUNC defines to pcie.h header file
These have been redefined in various places - better to have them in a
single place that different users can use.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2021-02-15 08:23:05 -05:00
Scott Worley
2b926db4e1 drivers: espi: Microchip eSPI add SAF support
Add ESPI SAF features to the Microchip eSPI driver as
a separate file. ESPI SAF depends upon the core eSPI
driver adding the ability to attach the system SPI
flash to the EC eSPI endpoint instead of the host
eSPI controller.

Signed-off-by: Scott Worley <scott.worley@microchip.com>
2021-02-15 08:22:01 -05:00
Kumar Gala
c62e445c70 drivers: clock_control: Check to see if the clock device is ready
Add device_is_ready check to clock APIs as we might now get the clock
device via DEVICE_DT_GET and thus may not have checked if the clock
controller device is ready.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2021-02-14 18:37:53 -05:00
Peter Bigot
d983ad193b drivers: i2c: document slave API
The I2C slave API has been present since 1.12 but lacked documentation
on the behavior of its functions.  Provide that, and revise existing
documentation to make clear the type and mode of the device passed to
each API call.

Documented behavior is derived primarily from the LPC11U6X
implementation, as the STM32 implementation generally ignores return
values.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2021-02-09 13:59:17 -05:00
Kumar Gala
3fff3852fa dts: Rename compatible arm,arm-timer to arm,armv8-timer
The compatible for the ARMv8 timer should have been arm,armv8-timer and
not arm,arm-timer.  The dts binding file name was correct, just the
compatible was wrong.  Rename dts, binding, and associated code to use
arm,armv8-timer.

Fixes #31946

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2021-02-04 07:04:28 -05:00
Jennifer Williams
783f8158c1 include: drivers: uart: fix incorrect event name in brief
The use of UART_RX_DONE was incorrect/invalid (the event
does not exist). This corrects the reference to UART_RX_RDY.

Fixes #31207

Signed-off-by: Jennifer Williams <jennifer.m.williams@intel.com>
2021-02-03 09:44:21 -05:00
Krzysztof Chruscinski
c07bb77247 drivers: uart: Clarity timeout in uart_rx_enable and add doxygen links
Timeout parameter was not definied clearly. Added clarification together
doxygen links to events used in the description.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-01-29 15:05:16 -05:00
Rohit Gujarathi
f023df581f drivers: display: Added support for restricted update.
Added support for restricted updating of monochrome
displays.

Signed-off-by: Rohit Gujarathi <gujju.rohit@gmail.com>
2021-01-21 17:26:37 +01:00
Andrei Emeltchenko
e18379c474 edac: doc: Include EDAC API to Zephyr API Reference
Include EDAC API to generated Zephyr API Reference.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-01-21 08:34:07 -05:00
Andrei Emeltchenko
f4582b9478 edac: Add error data information to callback parameter
Add extra error data information to callback parameter. Add tests for
testing the data provided.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-01-21 08:34:07 -05:00
Andrei Emeltchenko
2dc413aa74 edac: Split EDAC set ctrl to set error_type and error_trigger
Split setting EDAC IBECC ctrl to setting error_type and
error_trigger to make it easier for other platforms.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-01-21 08:34:07 -05:00
Andrei Emeltchenko
f80628ba96 edac: Generalize EDAC API
Replace addr with param1 and addr_mask with param2 for get / set types
of functions. Those names are more general and allow to implement
error injections for other platforms.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-01-21 08:34:07 -05:00
Andrei Emeltchenko
6caec8cb4f edac: Add EDAC API
Add Error Detection And Correction (EDAC) API.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2021-01-21 08:34:07 -05:00
Dawid Niedzwiecki
6ec4ff22e3 emul: Add an emulator for the eSPI Host
This emulator pretends a generic eSPI Host. It supports basic virtual
wires and port80 operations.

There are functions to trigger actions on the host side e.g. for
setting a virtual wire from the host to the eSPI slave, use
emul_espi_host_send_vw. It will prepare data and set a proper event
on the slave side which will trigger callback (if there is any).

Signed-off-by: Dawid Niedzwiecki <dn@semihalf.com>
2021-01-20 17:49:19 -05:00
Dawid Niedzwiecki
d1948dc164 emul: espi: Add support for eSPI emulators
Add an emulation controller which routes eSPI traffic to attached
emulators depending on the selected chip(mostly host).
This allows drivers for eSPI peripherals to be tested on systems
that don't have that peripheral attached, with the emulator handling
the eSPI traffic.

Signed-off-by: Dawid Niedzwiecki <dn@semihalf.com>
2021-01-20 17:49:19 -05:00
Henrik Brix Andersen
69258775ec drivers: pwm: clean up the PWM capture API documentation
Clean up the PWM capture API documentation a bit:
- Turn simple comments on PWM_CAPTURE_MODE_* into documentation comments
- Callback signature is always available, but note that PWM capture
  support is optional
- Remove double @a
- Document return codes from pwm_pin_{enable,disable}_capture()
- Change wording to reflect that pwm_pin_capture_*() returns a single
  result

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2021-01-19 08:09:16 -05:00
Carlo Caione
57f7e31017 drivers: PSCI: Add driver and subsystem
Firmware implementing the PSCI functions described in ARM document
number ARM DEN 0022A ("Power State Coordination Interface System
Software on ARM processors") can be used by Zephyr to initiate various
CPU-centric power operations.

It is needed for virtualization, it is used to coordinate OSes and
hypervisors and it provides the functions used for SMP bring-up such as
CPU_ON and CPU_OFF.

A new PSCI driver is introduced to setup a proper subsystem used to
communicate with the PSCI firmware, implementing the basic operations:
get_version, cpu_on, cpu_off and affinity_info.

The current implementation only supports PSCI 0.2 and PSCI 1.0

The PSCI conduit (SMC or HVC) is setup reading the corresponding
property in the DTS node.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2021-01-18 19:06:53 +01:00
Erwan Gouriou
d43200e9c4 drivers/dma: stm32: Preparation for QSPI DMA mode support
In preparation for QSPI DMA mode:
-Add a possibility to override driver by the HAL DMA. In that case
stream is set as busy and no configuration nor treatment is done.
In case of interrupt, flags clearing is let to HAL.
-Treat Half Transfer interrupt prior to Transfer Complete for the
cases were both IRQ are both raised at the time IRQ handler is called

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2021-01-15 10:29:30 -05:00
Peter Bigot
8c4c72d213 drivers: adc: update to conform to API guidelines
When the async API is not enabled produce a link-time error rather
than a runtime error.  Also document the dependence on the option.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2021-01-15 09:50:40 -05:00
Peter Bigot
2ef30e529b drivers: spi: update to conform to API guidelines
When the async API is not enabled produce a build-time error rather
than a runtime error.  Also document the dependence on the option.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2021-01-15 09:50:40 -05:00
Eden Desta
fa6ac271ec Update can_common: Check bitrate is greater than 0
Ensure bitrate is greater than 0 so the program does not fault when RESET nmt command is sent
2021-01-12 15:11:18 -06:00
Henrik Brix Andersen
7aeb3df5c6 drivers: pwm: fix compilation with CONFIG_PWM_CAPTURE=n
Fix compilation with pwm.h with CONFIG_PWM_CAPTURE=n.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2021-01-12 15:55:43 -05:00
Henrik Brix Andersen
77b8440fd1 drivers: pwm: add API for capturing pwm pulse width and period
Extend the PWM API with optional API functions for capturing PWM pulse
width and period cycles.

Fixes #26026.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2021-01-12 19:43:06 +01:00
Erik Robstad
1feb49fd22 drivers: Dev. spec. PWM functionality for SX1509B
Add device specific functions for initiating
and controlling PWM output pins.

Signed-off-by: Erik Robstad <erik.robstad@nordicsemi.no>
2021-01-08 15:52:42 +01:00
Christopher Friedt
724ee49173 gpio: add driver for emulated GPIO
The emulated GPIO controller will aid in automated
integration testing.

Fixes #26477

Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
2020-12-27 18:15:33 +01:00
Mulin Chao
fa7843d12c driver: espi: add notification and opcodes for ec host command support.
This CL add a new notification event, ESPI_PERIPHERAL_EC_HOST_CMD, and
two response opcodes, ECUSTOM_HOST_CMD_GET_PARAM_MEMORY and
ECUSTOM_HOST_CMD_SEND_RESULT, to connect with host command sub-system
between host and ec.

It also introduced three configurations to increase the flexibility of
ec host command settings:
1. ESPI_PERIPHERAL_HOST_CMD_DATA_PORT_NUM:
   Host I/O peripheral port number for ec host command data. The default
   value is 0x0200.
2. ESPI_PERIPHERAL_HOST_CMD_PARAM_PORT_NUM:
   Host I/O peripheral port number for ec host command parameters. The
   default value is 0x0800.

3. ESPI_NPCX_PERIPHERAL_HOST_CMD_PARAM_SIZE:
   Host I/O peripheral port size for ec host command in npcx series. The
   valid value in npcx ec series for this option is
   8/16/32/64/128/256/512/1024/2048/4096 bytes. The default value is 256
   bytes.

Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
2020-12-20 13:05:50 -05:00
Mulin Chao
988a7a4826 driver: espi: add acpi and customized op codes for lpc r/w request func.
This CL introduces two kinds of op codes for espi_api_lpc_read_request
and espi_api_lpc_write_request Zephyr espi api functions.

One is for supporting ACPI and shared memory region to access ACPI data.
The other is customized for certain platforms such as Chromebook and so
on.

This CL also introduced the following configurations to add the
flexibility of these settings.

1. ESPI_PERIPHERAL_ACPI_SHM_REGION_PORT_NUM:
   Host I/O peripheral port number for shared memory region. The default
   value is default 0x0900

2. ESPI_NPCX_PERIPHERAL_ACPI_SHD_MEM_SIZE:
   Host I/O peripheral port size for shared memory in npcx series.
   Please notice the valid value in npcx ec series for this option is
   8/16/32/64/128/256/512/1024/2048/4096 bytes. The default value is 256
   bytes.

This CL also turn off hardware-wire feature which generates VW events
that connected to hardware signals such as SMI and SCI. We will set
VW output events directly via espi_api_send_vwire() api function.

Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
2020-12-20 13:05:50 -05:00
Andrzej Głąbek
f234c5f876 drivers: adc: Introduce the adc_sequence_options::user_data field
Introduce the field that can be used to associate a given sampling
sequence with any other data needed in the sampling-done callback
function.
Adjust one ADC API test case that uses a sequence callback so that
it checks if this introduced field is propagated as expected.

Also clarify in the description of the `sequence` parameter of the
callback function that this parameter is not supposed to be supplied
to the CONTAINER_OF() macro, to avoid any further confusion in that
regard.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2020-12-20 13:34:59 +01:00
Kumar Gala
9705df3084 drivers: gpio: Convert DEVICE_AND_API_INIT to DEVICE_DEFINE
Convert driver(s) to DEVICE_DEFINE instead of DEVICE_AND_API_INIT
so we can deprecate DEVICE_AND_API_INIT in the future.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-12-19 19:59:05 -05:00
Fabio Utzig
8713da70a3 doc: fix @param usage in callbacks
The proper usage of @param in callbacks is currently unsupported by
Doxygen so not warnings are generated. The issues fixed with this commit
where found while adding support to Doxygen for validating @param in
callbacks like it currently does for functions.

Signed-off-by: Fabio Utzig <fabio.utzig@nordicsemi.no>
2020-12-18 12:18:28 +01:00
Henrik Brix Andersen
a3629990ea drivers: sensor: add NXP MCUX ACMP driver
Add driver for the NXP MCUX Analog Comparator (ACMP) IP.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2020-12-17 08:54:33 -06:00
Alexander Wachter
05275ecf6e drivers: can: rework zcan_frame and zcan_filter
Reordering of the struct elements to match the Linux format.
The __packed() is not necessary anymore.
std_id and ext_id is merged to id in the frame and filter.
Additionally, the frames are ready for CAN-FD.

Signed-off-by: Alexander Wachter <alexander@wachter.cloud>
2020-12-17 11:07:53 +01:00
Alexander Wachter
8b6c1bd4b7 drivers: can: Rework can_configure API
The previous API can't change the sampling-point and only allowed
bitrates that fit the time segments.
The new API allows for shifting the sampling-point and adjusts the
number of time quantum in a bit to all more possible bitrates.
The functions to calculate the timings are moved to the can_common file.
They can be used for all drivers.

Signed-off-by: Alexander Wachter <alexander@wachter.cloud>
2020-12-17 11:07:53 +01:00
Tomasz Bursztyka
4ee5101021 drivers/virtualization: Make ivshmem driver userspace ready
Exposing its public API to userspace.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-12-16 18:47:35 -05:00
Tomasz Bursztyka
e9cf9d0325 doc: Adding ivshmem general and API documentation
A quick summary on what is ivshmem and its Zephyr driver API.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-12-16 18:47:35 -05:00
Tomasz Bursztyka
d48d5d6147 drivers/virtualization: Add doorbell support for ivshmem driver
This basically adds support for an interrupt based ivshmem variant
called "ivshmem-doorbell".

This allows, via MSI-X, to get multiple vectors for notifications, get
assigned and ID and being able to send a message to another ID (another
VM).

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-12-16 18:47:35 -05:00
Tomasz Bursztyka
d11f2f184d drivers/virtualization: Adding ivshmem driver
This is placed into drivers/virtualization as it does not belong to any
existing subsystem.

This is only the ivshmem-plain variant.

This device is provided by qemu or ACRN, and can be used to share memory
either between the host and the VM or between VMs. Here if zephyr is
used as a VM, it will be able to take advantage of such feature.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-12-16 18:47:35 -05:00
Peter Bigot
96fa707e0c Revert "drivers: move eeprom_slave driver to tests directory"
This reverts commit cabbd916cf.

This is considered to be useful enough that it should be restored
as a stable Zephyr API.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-12-16 16:39:49 -05:00
Kumar Gala
20689c17d4 drivers: clock_control: stm32: Convert drivers to new DT device macros
Convert clock_control drivers from:

    DEVICE_AND_API_INIT -> DEVICE_DT_DEFINE

As part of this we also changed STM32_CLOCK_CONTROL_NAME to be based on
devicetree.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-12-16 15:23:39 -06:00
Luke Starrett
430952f0b2 arch: arm64: GICv2/v3 handling causes abort on spurious interrupt
In _isr_wrapper, the interrupt ID read from the GIC is blindly used to
index into _sw_isr_table, which is only sized based on CONFIG_NUM_IRQ.

It is possible for both GICv2 and GICv3 to return 1023 for a handful
of scenarios, the simplest of which is a level sensitive interrupt
which has subsequently become de-asserted.  Borrowing from the Linux
GIC implementation, a read that returns an interrupt ID of 1023 is
simply ignored.

Minor collateral changes to gic.h to group !_ASMLANGUAGE content
together to allow this header to be used in assembler files.

Signed-off-by: Luke Starrett <luke.starrett@gmail.com>
2020-12-16 08:46:03 -05:00
Andrzej Głąbek
b7ce849307 drivers: adc: Make all API functions available
Change the way the `adc_read_async()` function is defined so that
the function is always available and appears in the generated
documentation but returns `-ENOTSUP` when `CONFIG_ADC_ASYNC` is not
enabled.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2020-12-15 10:10:28 -05:00
Carlo Caione
0d1a6dc27f intc: gic: Use SYS_INIT instead of custom init function
The GIC interrupt controller driver is using a custom init function
called directly from the prep_c function. For consistency move that to
use SYS_INIT.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2020-12-11 10:17:27 -05:00
Krzysztof Chruscinski
f8723bd37f drivers: clock_control: nrf: Add audio clock support to nrf53
Added support for audio clock in nrf53.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-12-10 12:58:49 +01:00
Tomasz Bursztyka
a2491b321e drivers/pcie: Add support for MSI-X
It's disabled by default. When enabled, and if the device exposes both
MSI and MSI-X capabilities: MSI-X will be selected and MSI disabled on
the device.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-12-08 09:29:20 -05:00
Tomasz Bursztyka
557b17076f drivers/interrupt_controller: Add Intel VT-D interrupt remapping driver
Such interrupt remapping controller may be found along with Intel VT-D
hardware. Its base-address is via ACPI, and it enables up to 64K
interrupt indexes.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-12-08 09:29:20 -05:00
Tomasz Bursztyka
4199cd38f1 drivers/pcie: Add support for MSI multi-message
This enables software MSI "multi-vector" feature, letting the user to
register an isr handler per-MSI message.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-12-08 09:29:20 -05:00
Tomasz Bursztyka
6e56157008 drivers/pcie: Move PCIE code to relevant place
Though it was noted that pcie_get_cap() is only used by MSI code so far,
there is no need to put it in msi code. If unused, linker will nuke it.
So let's move things to where it belongs to.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-12-08 09:29:20 -05:00
Pawel Czarnecki
ed6c0103a9 drivers: clock control: Add LiteX clock control driver
This commit adds LiteX SoC Builder clock control driver for MMCM
module. It gives ability to change frequency, phase and duty cycle
on up to 7 clock outputs.

Signed-off-by: Pawel Czarnecki <pczarnecki@internships.antmicro.com>
Signed-off-by: Mateusz Holenko <mholenko@antmicro.com>
2020-12-06 12:35:16 -05:00
Krzysztof Chruscinski
79e63b4216 drivers: timer: nrf: Extended driver with vendor specific API
Extended nrf_rtc_timer driver to expose API for using RTC for
other purposes. System timer is using one compare channels,
other channels may be used through this API.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-12-03 14:05:30 +01:00
Abhishek Shah
f66e5c4cb0 drivers: pcie_ep: Add API to achieve data transfer with system DMA
Introduce common API to achieve data transfer using system DMA.
"System DMA" uses the outbound memory mapped Host address,
it cannot understand Host/PCIe address.

This API will take of mapping the Host address, completing
the data transfer to/from Host memory and unmapping the window;
thus providing abstraction to the user.

Since v1:
- refactored code for the cases where we have valid mapped_addr
  to improve error management logic

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
2020-12-01 14:56:59 -05:00
Abhishek Shah
7bce8406d6 pcie: endpoint: Add public API for data transfer with System DMA
For a given PCIe EP device, data transfer to/from Host memory can be
achieved with "System DMA" between mapped Host memory
(PCIe outbound memory) and EP device's local memory if EP is equipped
with a "System DMA controller".
Add public API to enable such DMA transfers.

The term "System DMA" is used to clarify that we are not talking about
dedicated "PCIe DMA"; rather the one which does not understand PCIe
address directly, and uses the mapped Host memory.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
2020-12-01 14:56:59 -05:00
Tomasz Bursztyka
9bf3c62a4a drivers/pcie: Fix function that looks up for mbar
An address might be made for 64bit though it's lower 32 bits are made of
0. Also Simplifying the overall by removing a useless variable.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-11-27 09:58:08 -05:00
Maximilian Bachmann
3c8e98cb39 drivers/pcie: Change pcie_get_mbar() to return size and flags
currently pcie_get_mbar only returns the physical address.
This changes the function to return the size of the mbar and
the flags (IO Bar vs MEM BAR).

Signed-off-by: Maximilian Bachmann <m.bachmann@acontis.com>
2020-11-20 09:36:22 +02:00
MORGER Patrick
d2cebd8dab include: drivers: add missing extern "C" in led.h and lora.h
The following lines are missing:
extern "C" {

and

}

Signed-off-by: MORGER Patrick <patrick.morger@leica-geosystems.com>
2020-11-17 13:08:47 +02:00
Johan Hedberg
f004410aa1 drivers: pcie: Rename pcie_wired_irq to pcie_get_irq
This reflects better the actual purpose of the API.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2020-11-14 11:13:00 +02:00
Johan Hedberg
9e4dfd8f4e drivers: pcie: Add support for IRQ allocation management
There are x86 platforms where the IRQ configuration register for PCIe
is not pre-populated and the OS needs to assign a number dynamically
by writing to the register.

In order to allocate interrupts we have to know which ones have been
hard-coded in device tree. We accomplish this by collecting these
values through the IRQ_CONNECT() macro and placing them in a dedicated
linker section (in ROM).

The full set of allocated interrupts are managed through a bitmap, and
the pre-allocated values (from the linker section) are inserted into
this upon initial runtime access.

This patch introduces a new pcie_alloc_irq() API that drivers can use
to allocate interrupt line numbers. The two in-tree drivers that were
using this API (I2C and UART) are converted to use the new API.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2020-11-14 11:13:00 +02:00
Peter A. Bigot
b7639551ee drivers: add infrastructure for regulator devices
This PR follows Linux in defining devicetree content for generic
voltage and current regulators, and an initial driver API for
controlling them.

A regulator itself may depend on a power source, so it needs to
support the properties that enable that power source.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2020-10-28 15:22:53 +01:00
Andrzej Puzdrowski
508c0356ab doc/reference/peripherals/flash: extract internal API doc
Divided doxygen API documentation into zephyr-internal API and
user API.
This make sense as user shall not use zephyr-internal API.

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
2020-10-27 12:52:07 +01:00
Jukka Rissanen
cc230815cb drivers: gsm: Add GSM modem device name
Application might need to know the GSM modem device name so
provide it in the header file.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2020-10-19 18:29:02 +02:00
Benjamin Lindqvist
54cb2bcd41 drivers: modem: gsm_ppp: Enable start/stop
These changes enable applications to restart the networking stack which
was previously not possible without rebooting the device. This was a
major show-stopper because it made power management impossible, and
furthermore made it impossible to recover from a bad modem state without
rebooting.

This has been verified to work on a SIMCOM7600E modem, both with and
without CONFIG_GSM_MUX enabled.

Signed-off-by: Benjamin Lindqvist <benjamin.lindqvist@endian.se>
2020-10-19 18:29:02 +02:00
Rihards Skuja
576b3583ee lorawan,lora: fix C++ compilation/linking errors
The usual suspects: missing extern and assignments from void *.

Signed-off-by: Rihards Skuja <rihardssk@mikrotik.com>
2020-10-15 11:08:07 +02:00
Andrei Emeltchenko
5df906f06f pcie: Trivial documentation cleanup
Cleanup PCIE documentation.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
2020-10-14 11:49:12 -07:00
Krzysztof Chruscinski
a348cec400 drivers: clock_control: Change clock_control_async_on parameters
Stable API change: modify parameters of clock_control_async_on which
previously took a structure which contains list node, callback and user
context. Removing list node and replacing structure with two parameters:
callback and user context. List node is removed because it has no use
in current API.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-10-14 14:06:56 +02:00
Kumar Gala
c22f7e5062 uart: Remove deprecated defines
The following defines have been deprecated for at least 2 releases so
remove them:

UART_ERROR_BREAK
LINE_CTRL_BAUD_RATE
LINE_CTRL_RTS
LINE_CTRL_DTR
LINE_CTRL_DCD
LINE_CTRL_DSR

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-10-07 15:13:32 -05:00
Simon Glass
a1d8e55cad emul: spi: Add support for SPI emulators
Add an emulation controller which routes SPI traffic to an attached
emulator. Only one emulator is supported per bus at present, since
chip-selction functionality is not present.

This allows drivers for SPI peripherals to be tested on systems that
don't have that peripheral attached, with the emulator handling the SPI
traffic.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-05 15:33:00 -04:00
Kumar Gala
c8b94f468a kernel: Remove deprecated APIs and MACROs from 2.3
Remove old K_ prefixed macros defined in kernel.h as well as the
following APIs:

k_uptime_delta_32
k_enable_sys_clock_always_on
k_disable_sys_clock_always_on

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-10-04 14:13:09 -07:00
Aastha Grover
83b9f69755 code-guideline: Fixing code violation 10.4 Rule
Both operands of an operator in the arithmetic conversions
performed shall have the same essential type category.

Changes are related to converting the integer constants to the
unsigned integer constants

Signed-off-by: Aastha Grover <aastha.grover@intel.com>
2020-10-01 17:13:29 -04:00
Krzysztof Chruscinski
c69a27b789 drivers: timer: nrf: Add configurable clock startup mode
Added configuration for approach to starting system clock source.
There are 3 options: no wait, wait untill available, wait until
stable.

Added support for those modes in clock control driver which handles
low frequency source clock.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-09-10 21:31:01 +02:00
Andrzej Puzdrowski
6fe1fde9dc include/drivers/flash: correction on the unrestricted alignment of writes
Telling that all the driver supports unaligned writes was and
is not true. Drivers only have to support any source buffer.

This fix message introduced by #23628

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
2020-09-10 13:23:30 +02:00
Jett Rink
703fe86220 ec_host_cmd_periph: add device API
The host command peripheral device API abstracts how an embedded
controller sends and receives data from a host on a bus. Each bus like
eSPI, SPI, or I2C would implement their own host command peripheral
device. Each hardware device would then handle the necessary hardware
access to send and receive data over that bus.

The chosen host command peripheral device will be used by the host
command handler framework to send and receive host data correctly.

Signed-off-by: Jett Rink <jettrink@google.com>
2020-09-04 14:50:45 -04:00
Krzysztof Chruscinski
17f70df01e drivers: clock_control: nrf: Add support for clk192m
Add support for 192M clock.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-09-04 16:36:05 +02:00
Tomasz Bursztyka
ef560e0a53 drivers: Manual const-ification of device driver instance
These are all the case that coccinelle cannot find as they are inside
macro declarations.

Fixed via:

git grep -rlz -E "\(struct device \*" |
	xargs -0 sed -i 's/(struct device/(const struct device/g'

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
Tomasz Bursztyka
e18fcbba5a device: Const-ify all device driver instance pointers
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.

A coccinelle rule is used for this:

@r_const_dev_1
  disable optional_qualifier
@
@@
-struct device *
+const struct device *

@r_const_dev_2
 disable optional_qualifier
@
@@
-struct device * const
+const struct device *

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
Tomasz Bursztyka
7967aa6af0 drivers: gpio: Use DEVICE_AND_API_INIT for mmio32 driver
Let's set the api at built time, or this will create a bug once device
instance pointers become constant.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-09-02 13:48:13 +02:00
Simon Glass
49f2167974 emul: i2c: Add support for I2C emulators
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>
2020-09-01 14:30:46 -04:00
Krzysztof Chruscinski
701e9befe4 drivers: clock_control: nrf: Move USB part to the USB driver
Removed all nrf_power/USB related stuff from clock control
driver to USB driver.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-08-31 12:40:47 +02:00
Ryan Erickson
eca8842b67 drivers: modem: add Sierra Wireless HL7800 Modem Driver
The driver utilizes the CONFIG_NET_OFFLOAD setting to avoid the
normal handling of IP packets, and instead uses a socket-like
UART interface to handle incoming and outgoing data via AT commands.

Signed-off-by: Ryan Erickson <ryan.erickson@lairdconnect.com>
2020-08-31 10:46:33 +02:00
Simon Guinot
b37ea90335 drivers: led: add driver for TI LP503x controllers
This patch adds support for the Texas Instruments LP5030 and LP5036
I2C LED controllers. They are respectively providing up to 30 and 36
channels (i.e. 10 or 12 RGB LEDs).

In addition to the channel/color registers this LED controller provides
a per-LED brigthness register. This driver implements both LED-based and
channel-based API methods:

- led_on
- led_off
- led_get_info
- led_set_brightness
- led_set_color
- led_set_channel
- led_write_channels

Signed-off-by: Simon Guinot <simon.guinot@seagate.com>
2020-08-28 15:04:35 +02:00
Simon Guinot
f59abf5916 drivers: led: introduce channel-dedicated syscalls
Some LED controllers are connected to a large number of LEDs (i.e.
array/strip of LEDs). A user may need to set several LEDs at the same
time. The LED oriented syscalls are not adapted to this task. Indeed a
call per LED is needed to configure a group of LEDs. To that end, this
patch adds the led_set_channel and led_write_channels syscalls to the
LED API. They offer direct access to the raw channels. They respectively
allow to set a single channel and to write several contiguous channels
(and therefore to configure a group of LEDs).

Moreover the addition of the led_write_channels syscall also aims at
closing the gap with the LED strip API.

Signed-off-by: Simon Guinot <simon.guinot@seagate.com>
Signed-off-by: Maxime Bittan <maxime.bittan@seagate.com>
2020-08-28 15:04:35 +02:00
Simon Guinot
4f5583bf33 drivers: led: make more API callbacks optional
For the LED controller without any hardware blinking capability this
doesn't really make sense to make the blink callback mandatory. It is
better to let it undefined. This way this will allow the LED API to
fall back to a common software blink implementation.

In addition some controllers with RGB LEDs don't have the capability
to configure the LED brightness but only the channel/color levels.
Their drivers may only implement the set_color callback.

That's why this patch makes the blink and set_brightness LED API
callbacks optional.

Signed-off-by: Simon Guinot <simon.guinot@seagate.com>
2020-08-28 15:04:35 +02:00
Simon Guinot
2e26262451 drivers: led: introduce led_set_color syscall
The led_set_color syscall adds support for multicolor (i.e.
multi-channel) LEDs to the LED API. It allows a user to set all the
colors/channels of a LED at once by passing a color array. Note that
this array must provide an entry per color/channel and must also be
ordered following the color mapping of the LED. This color mapping can
be either retrieved from the "color-mapping" DT property or from the LED
driver itself (by using the led_get_info syscall).

Signed-off-by: Simon Guinot <simon.guinot@seagate.com>
2020-08-28 15:04:35 +02:00
Simon Guinot
713809f0ce drivers: led: introduce led_get_info syscall
When supported by the driver the led_get_info syscall allows a user
to retrieve the following information about each LED available:

- The LED label.
- The number of colors/channels.
- And for a multicolor LED a pointer to a channel-color mapping.

Signed-off-by: Simon Guinot <simon.guinot@seagate.com>
Signed-off-by: Maxime Bittan <maxime.bittan@seagate.com>
2020-08-28 15:04:35 +02:00
Simon Guinot
745d5ac7e1 led: move API functions to LED objects
Actually the LED API functions are handling channel objects. The "led"
parameter passed to the functions is defined as a channel number. This
patch redefines it as a LED number instead.

Note that this patch doesn't change anything for the drivers handling
mono-color (or single channel) LEDs. For the drivers handling multicolor
(or multi-channel) LEDs, such as the lp5562, then the API is broken.

Signed-off-by: Simon Guinot <simon.guinot@seagate.com>
2020-08-28 15:04:35 +02:00
Peter Bigot
7a8a4c9b3e drivers: spi: document expectation on spi config parameter
Most if not all drivers use an internal function
spi_context_configured() to bypass reconfiguring the SPI peripheral
when nothing has changed.  That function determines change based on
comparing the struct spi_config pointer that was last used.  This does
not work if a user changes fields within the pointed-to structure.

Document that pointer comparison may be used to detect changes.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-08-26 12:25:06 +02:00
Flavio Ceolin
0aaae4a039 guideline: Make explicit fallthrough cases
-Wimplicit-fallthrough=2 requires a fallthrough comment or a compiler
to tells gcc that this happens intentionally.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2020-08-24 20:28:47 -04:00
Peter Bigot
4f8f286a2a drivers: i2c: document speed levels
Many developers will be unfamiliar with UM10204 so document the rates
that are associated with the standard, fast, etc. speed names.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-08-24 16:23:43 -05:00
Peter A. Bigot
dae5bfdfd4 cdc_acm: fix C++ issues with header and document dependency
The header was missing the language linkage wrapper that allows the
driver-specific function to be located from C++.

Also it helps the poor user to be informed that the function is only
available when a special Kconfig option is set.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2020-08-17 13:42:02 -04:00
Peter A. Bigot
6a1a246825 drivers: flash: add API to read JEDEC ID from compatible drivers
Some flash drivers are capable of issuing a JESD216 READ_SFDP command
to read serial flash discoverable parameters.  Allow applications and
utilities access to API that reads the JEDEC ID from those devices.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2020-08-17 13:38:14 -04:00
Peter A. Bigot
4eb8d9dd9e drivers: flash: add API to access SFDP region of serial flash devices
Some flash drivers are capable of issuing a JESD216 READ_SFDP command
to read serial flash discoverable parameters.  Allow applications and
utilities access to that capability where it's supported.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2020-08-17 13:38:14 -04:00
Peter Bigot
cabbd916cf drivers: move eeprom_slave driver to tests directory
This device isn't an actual hardware driver: it's a virtual EEPROM
that stores data in an instance-specific RAM buffer, with the data
exposed on an I2C bus as a I2C follower (slave) device that can be
controlled by another device acting as a leader (master) on that same
bus.

As such it's a reasonable example of how to write an I2C follower
driver, but it's not clear that it has a real use in applications.  A
Zephyr application that needs to emulate an EEPROM in a real-world
system would be unlikely to provide its data from a RAM buffer.

The sole in-tree reference is in the i2c_slave_api test, so move the
driver implementation into that test.

The Kconfig and hierarchy are being left in place until it is more
clear how this functionality should be selectable within Zephyr.  The
I2C_SLAVE symbol has been converted from menuconfig to config to
eliminate a Kconfig style diagnostic.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-08-13 11:49:12 +02:00
Tomasz Bursztyka
98d9b01322 device: Apply driver_api/data attributes rename everywhere
Via coccinelle:

@r_device_driver_api_and_data_1@
struct device *D;
@@
(
D->
-	driver_api
+	api
|
D->
-	driver_data
+	data
)

@r_device_driver_api_and_data_2@
expression E;
@@
(
net_if_get_device(E)->
-	driver_api
+	api
|
net_if_get_device(E)->
-	driver_data
+	data
)

And grep/sed rules for macros:

git grep -rlz 'dev)->driver_data' |
	xargs -0 sed -i 's/dev)->driver_data/dev)->data/g'

git grep -rlz 'dev->driver_data' |
	xargs -0 sed -i 's/dev->driver_data/dev->data/g'

git grep -rlz 'device->driver_data' |
	xargs -0 sed -i 's/device->driver_data/device->data/g'

Fixes #27397

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-08-11 19:30:53 +02:00
Tomasz Bursztyka
af6140cc0d device: Apply config_info rename everywhere
Via coccinelle:

@r_device_config@
struct device *D;
@@

D->
-	config_info
+	config

And 2 grep/sed rules for macros:

git grep -rlz 'dev)->config_info' |
	xargs -0 sed -i 's/dev)->config_info/dev)->config/g'

git grep -rlz 'dev->config_info' |
	xargs -0 sed -i 's/dev->config_info/dev->config/g'

Fixes #27397

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-08-11 19:30:53 +02:00
Tomasz Bursztyka
a8cd162d2c device: Rename config_info attribute to config
There use to be a config attribute of type device_config, on which
config_info could be found. config_info was thus named that way to
differentiate easily from config attribute in struct device.

Now that there is no such device_config structure, config_info in
structure device now, can be renamed to config.

Semantically, it makes for sense. We have an attribute pointing to the
configuration of the device driver instance. Configuration information
is correct but has a redundant meaning.

Fixes #27397

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-08-11 19:30:53 +02:00
Rubin Gerritsen
38295e0b73 bluetooth: controller: Add BT_QUIRK_NO_AUTO_DLE for BT_LL_SW_SPLIT
It does not auto-initiate the DLE procedure if the default data length
parameters are not equal to the initial parameters.

Signed-off-by: Rubin Gerritsen <rubin.gerritsen@nordicsemi.no>
2020-08-10 12:14:49 +02:00
Rubin Gerritsen
5b034e103f bluetooth: hci_driver: Add BT_QUIRK_NO_AUTO_DLE
Some controllers do not follow the recommendation of auto-initiating
a data length update if the host writes default data length parameters.

If the controller follows this recommendation, calling
LE Write Suggested Default Data Length command is sufficient
to ensure that the LL will auto-initiate the DLE procedure. Performing
a second procedure is unecessary.

In Core v5.2, Vol 4, Part E, Section 7.8.35:
The HCI_LE_Write_Suggested_Default_Data_Length command allows the
Host to specify its suggested values for the Controller's maximum
transmission number of payload octets and maximum packet
transmission time for packets containing LL Data PDUs to be used
for new connections. The Controller may use smaller or larger values
for connInitialMaxTxOctets and connInitialMaxTxTime based on local
information.

In short, this command sets connInitialMaxTxOctets
and connInitialMaxTxTime.

In Core v5.2, Vol 6, Part B, Section 4.5.10:

For a new connection: connMaxTxOctets shall be set to
connInitialMaxTxOctets and connMaxRxOctets shall be chosen by the
Controller. If either value is not 27 then the Controller should
initiate the Data Length Update Procedure at the earliest practical
opportunity.

Signed-off-by: Rubin Gerritsen <rubin.gerritsen@nordicsemi.no>
2020-08-10 12:14:49 +02:00
Andrzej Puzdrowski
4d4455b174 include/drivers/flash: document on the unrestricted source buffers
Document unrestricted source buffer location while writing to
the flash.

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
2020-08-05 15:27:46 -04:00
Andrzej Puzdrowski
1d8cf859db include/drivers/flash: document on the unrestricted alignment of reads
Unaligned read-out capability become fact among all drivers.
Let's cut this in stone as API requirement.

fixes #16439

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
2020-08-05 15:27:46 -04:00
Simon Glass
6b50f643da drivers: i2c: Add a dump routine
Add a function to dump out a set of I2C messages. It uses debug logging
so it only useful for debugging.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-04 17:50:39 +02:00
Krzysztof Chruscinski
2891256b67 drivers: serial: Add error code to uart_rx_buf_rsp
API did not cover a case when uart_rx_buf_rsp is called when receiver
is already disabled. It may happen if uart_rx_buf_rsp is called too
late and active transfer is already finished. In that case -EACCES is
returned.

Some implementations already returned that error in that case.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-08-03 13:49:57 +02:00
Tomasz Bursztyka
0d4477604a ipm: Callback's user data has to be called user_data
s/context/user_data

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-30 09:51:51 +02:00
Tomasz Bursztyka
e4479f907f api: ipm: Pass the ipm device as first parameter to callback
Let's normalize the callback like it is done in other APIs.
This will avoid the need to do not so nice code (storing the ipm device
pointer as global, or else) and more importantly will help to move all
device instance to constant.

Fixes #26923

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-30 09:51:51 +02:00
Tomasz Bursztyka
8144de1513 dma: Callback's user data has to be called user_data
s/callback_arg/user_data

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-30 09:48:00 +02:00
Tomasz Bursztyka
800e6c3a28 dma: Generalize dma callback signature by adding a dedicated typedef
Until now, each and every driver had to redeclare the type to store such
pointer, now they will be using this typedef.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-30 09:48:00 +02:00
Tomasz Bursztyka
020dab824c api: dma: Pass the dma device pointer as parameter to callback
Normalize callback like other APIs.
This clarifies the callback usage. It will also help to switch all
device instance to constants.

Fixes #26923

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-30 09:48:00 +02:00
Tomasz Bursztyka
b258f2d3a3 uart: Removing uart_irq_callback_t type
This type of callback does not exist anymore and can be safely removed.

Fixes #26923

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-30 09:43:12 +02:00
Tomasz Bursztyka
e4e6b8e193 uart: Normalize irq callback signature
All other API provide the device pointer to the callback it's going to
call. So fixing this in UART.

This will avoid passing the actual device pointer as a user data (thus
enabling user data for something else).

Fixes #26923

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-30 09:43:12 +02:00
Tomasz Bursztyka
4644d4a40c uart: Normalize user callback signature
All other API provide the device pointer to the callback it's going to
call. So fixing this in UART.

This will avoid passing the actual device pointer as a user data (thus
enabling user data for something else).

Fixes #26923

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-30 09:43:12 +02:00
Tomasz Bursztyka
a010241cb3 uart: Normalizing device parameter name
s/port/dev

dev is being used everywhere else so let's rename port to dev.
And the parameter documentation should be the same for all.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-30 09:43:12 +02:00
Maxime Bittan
ed4511ea8c drivers: clock_control: lpc11u6x: Add support for clock controller
This commit adds basic support for the clock controller used in
lpc11u6x MCUs.

Signed-off-by: Maxime Bittan <maxime.bittan@seagate.com>
Signed-off-by: Simon Guinot <simon.guinot@seagate.com>
2020-07-29 20:12:24 +02:00
Raveendra Padasalagi
306980816a dma: Support 64bit source/dest address
Add 64bit source_address/dest_address fields support.
This is needed in situation where DMA controller is capable
of handling more than 32bit source and destination addresses.

Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com>
2020-07-24 11:54:31 +02:00
Simon Glass
49a3e49936 include: drivers: sensor: Add more channels for batteries
Add some more channels useful for batteries with fuel gauges.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-07-23 12:12:09 -04:00
Peter Bigot
a1babb7f1f drivers: eeprom_slave: add const qualifier to read-only data
The EEPROM device doesn't mutate the source data it's given, so update
the API signature to reflect this fact.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-07-22 21:41:12 +02:00
Michael Hope
62a236e546 usb: cdc_acm: add a DTE rate changed callback
This is called when the USB host changes the virtual baud rate.

This is used by Arduino style boards to signal that the board should
reset into the bootloader.

Signed-off-by: Michael Hope <mlhx@google.com>
2020-07-22 13:24:37 +02:00
Tomasz Bursztyka
922325992d spi: Make all API functions available
Removing ifdef around conditional API to follow zephyr coding style.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-07-20 17:32:42 -04:00
Krzysztof Chruscinski
6f01c0bc79 drivers: clock_control: nrf: Add onoff service support
Updated nrf clock control driver to use onoff service for managing
multiple users.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-07-20 16:22:21 +02:00
Krzysztof Chruscinski
88be2ea2d2 drivers: uart: Make all API function available
Conditional API was removed by preprocessor which violates zephyr
coding style. Removed ifdefs around conditional API.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-07-17 13:00:52 -05:00
Andrew Boie
ee3c50ba6d x86: apic: use device MMIO APIs
A hack was required for the loapic code due to the address
range not being in DTS. A bug was filed.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2020-07-17 11:38:18 +02:00
Johann Fischer
b95558dd9f drivers: usb: unify endpoint helper macros
Unify endpoint index and direction helper macros
across all usb device drivers.

Signed-off-by: Johann Fischer <j.fischer@phytec.de>
2020-07-10 11:45:46 +02:00
Peter Bigot
a0f025995d drivers: watchdog: update API to reflect additional return code
Allow feed operations that would stall due to internal peripheral
delays to complete immediately with -EAGAIN indicating that the feed
did not occur as expected.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-07-09 06:44:59 -04:00
Andy Ross
43d84147d9 drivers/pcie: Fix BAR address size limitation
The PCI API was originally limited to 32 bit addresses.  Even though
it had code to skip over the high word in 64 bit BAR entries, it
refused to use it and returned a 32 bit value.  Some devices in the
wild have default mappings from the firmware for devices above 4G.

Also remove the "iobar" API.  It's dead code, we don't call it and we
don't test it.  IO space BAR entries are a legacy feature from way,
way back in PCI history (I genuinely have never heard of a real device
that uses them!).  And there's no difference in format between one of
these and a 32 bit "memory" BAR anyway, someone who actually had this
requirement could just use the existing API without worry.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2020-07-08 12:34:09 +02:00
Joakim Andersson
4be66bd33d Bluetooth: Fix host RX thread deadlock
Fix host RX thread being deadlocked. The deadlock occurs because the
RX thread is stuck waiting in conn_tx_alloc with K_FOREVER but if the
connection is disconnected only the RX thread can unblock it in the
handling of the disconnect event.

This commit fixes this deadlock by splitting the processing of the
disconnected event into two parts.
The part needed to unblock the RX is to release resources held by
unack'ed TX packets and mark the connection state as not connected
anymore.
The RX thread waiting for free_tx fifo and the TX thread waiting for
the bt_dev.le.pkts semaphore will both check the connected state after
having acquired them and will abort if disconnected.
The rest of the processing will be handled at normal RX thread
priority like normal.

Move the bt_recv_prio handling to the Bluetooth host when the host
has defined its own RX thread (CONFIG_BT_RECV_IS_RX_THREAD=n).
If the HCI driver has the RX thread (CONFIG_BT_RECV_IS_RX_THREAD=y),
then the responsibility to call bt_recv and bt_recv_prio correctly
falls to the HCI driver.
The helper function bt_hci_evt_is_prio() is replaced with
bt_hci_evt_get_flags() so that the HCI driver can do this correctly.
This decision to replace was made so that existing HCI drivers
maintained out-of-tree will fail at compile time with the new system.

Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>

Bluetooth: host: Move bt_recv_prio to host when RX thread is defined

Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
2020-07-06 11:15:39 +02:00
Jordan Yates
5963ebaf33 drivers: spi: CS configuration through devicetree
Add an additional option to the spi_cs_control struct that records how
the pin has been configured in devicetree. For drivers that are not
updated, the CS behaviour is the same as before (Push-Pull).

Use the devicetree knowledge with the GPIO subsystem so that the correct
physical pin levels for the CS pin are automatically selected.

Fixes #26267

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
2020-07-01 16:40:03 -05:00
Sandeep Tripathy
8aa0248acd drivers: interrupt_controller: Add gicv3 SGI api
Add api to raise SGI to target cores in affinity level identified
by MPIDR. Currently only EL1S is supported.

Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
2020-07-01 08:02:57 -04:00
Rajavardhan Gundi
e71e803674 drivers: espi: Add support for ACPI_EC1 interface
This enables the ACPI_EC1 interface which is typically accessed
through ports 0x6A0 and 0x6A4 in Bios.

Signed-off-by: Rajavardhan Gundi <rajavardhan.gundi@intel.com>
2020-06-25 17:05:43 -04:00
Dominik Ermel
609b645ac7 drivers/flash: Move write_block_size into flash_parameters
With addition of flash_parameters structure, and supporting API call
to retrieve it, it is no longer needed to store write_block_size as
a part of flash_driver_api and it should be part of flash_parameters.

Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
2020-06-22 14:35:03 +02:00
Dominik Ermel
18deb5423e drivers/flash: Add API call returning flash parameters
Adds flash_get_parameters call to API that returns pointer to structure
describing flash parameters.
Currently only erase_value parameter is provided via the structure.

Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
2020-06-22 14:35:03 +02:00
Abhishek Shah
19417b2a99 pcie: endpoint: Add public API to register reset interrupt callback
PCIe End Point can get three different reset interrupts from the
Root Complex, Function Level Reset (FLR), PCI Express Reset (PERST)
and Inband PCI Express Reset (INB PERST).

Add public API to let PCIe EP drivers register callback function
for each PCIe reset interrupt. This callback function should be
executed from corresponding reset interrupt handler if registered.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
2020-06-22 12:44:54 +02:00
Henrik Brix Andersen
696fc3afbf drivers: sensor: add api function for getting a sensor attribute
Add an API function for getting the value of a sensor attribute.

Fixes #26167.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2020-06-17 17:13:14 +02:00
Piotr Mienkowski
4b194eb4fc gpio: remove deprecated API functions/macros
This commit removes API functions and macros which were deprecated in
2.2 release. GPIO drivers are updated accordingly.

Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
2020-06-16 19:13:05 +02:00
Krzysztof Chruscinski
47ebae40d3 drivers: uart: RX_RDY after rx_disable
Updated rx_disable() description so that RX_RDY event is generated
after calling rx_disable. It contains data received prior to abort.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2020-06-16 19:11:57 +02:00
Jose Alberto Meza
a1b6dd51d0 drivers: espi: Add support for KBC status operations
In some systems, eSPI host perform operations directly over KBC HW
status.

Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
2020-06-15 16:52:53 +02:00
Abhishek Shah
3c2fa8cd51 pcie: endpoint: Introduce API to achieve PCIe data transfer
Introduce common API to achieve data transfer using memcpy
to/from outbound region of PCIe EP.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
2020-06-13 01:35:19 -07:00
Abhishek Shah
ca17315d7f pcie: endpoint: Add public APIs for PCIe endpoint driver
Add public APIs for PCIe endpoint driver:
- EP configuration space read/write
- Mapping/Unmapping of Host buffer and PCIe outbound region
- Raise interrupt to Host
These are minimal base APIs to make PCIe EP functional.

Also, add a Kconfig and an empty CMakeLists.txt for drivers to extend.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
2020-06-13 01:35:19 -07:00
Hake Huang
77c4015082 dma: add support for MCUX EDMA
1. expand PERIPHERAL_TO_PERIPHERAL
2. add slot size to 128 as i.MX-rt has 127 slot
3. add link_channel member in dma_conf which is used to
   support chain channel

Signed-off-by: Hake Huang <hake.huang@oss.nxp.com>
2020-06-12 13:03:28 -05:00
Peter Bigot
a4337bde28 drivers: pwm: clarify behavior
As written the specification when both period and pulse are zero is
inconsistent: allowed behavior would be to drive the pin at constant
active or constant inactive, depending on which condition was checked
first.

Clarify that driving constant active level requres a non-zero pulse
equal to period.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-06-09 18:12:53 +02:00
Kumar Gala
a1b77fd589 zephyr: replace zephyr integer types with C99 types
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00
Tomasz Bursztyka
794665e75b gpio: Fix header comments
There is no device config structure anymore, and
s/decleration/declaration

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-05-29 10:42:07 +02:00
Anas Nashif
3e4cd1853e drivers: pwm: fix doxygen docs
When referencing parameters, use @p and not @param.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2020-05-25 17:16:56 +02:00
Peter Bigot
a189311798 drivers: pwm: remove extraneous whitespace
PR was merged before this was cleaned up.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-05-19 22:27:41 -04:00
Alexander Wachter
31ae13eeb1 drivers: pwm: Clarify period parameter
Clarify what happens when the period parameter is zero or equal
to the period.

Signed-off-by: Alexander Wachter <alexander.wachter@leica-geosystems.com>
2020-05-19 18:27:42 +02:00
Sandeep Tripathy
17fcaa3fc4 drivers: timer: get ppi configuration from dt
Use device tree provided configurations for arm architecture timer
PPIs.

This fixes issue of timer ppi not working on most hardware where
edge-triggered PPI are not supported.

Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
2020-05-18 11:07:57 +02:00
Peter Bigot
4f16b419e8 device: avoid casting away const from config_info pointer
The driver-specific config_info structure referenced from the device
structure is marked const.  Some drivers fail to preserve that
qualifier when casting the pointer to the driver-specific structure,
violating MISRA 11.8.

Changes produced by scripts/coccinelle/const_config_info.cocci.

Some changes proposed by the script are not included because they
reveal mutation of state through the const pointer, though the
code works as long as the driver-specific object is defined without
the const qualifier.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-05-13 18:21:52 +02:00
Zide Chen
d27f6cb5eb interrupt_controller: program local APIC LDR register for xAPIC
If IO APIC is in logical destination mode, local APICs compare their
logical APIC ID defined in LDR (Logical Destination Register) with
the destination code sent with the interrupt to determine whether or not
to accept the incoming interrupt.

This patch programs LDR in xAPIC mode to support IO APIC logical mode.

The local APIC ID from local APIC ID register can't be used as the
'logical APIC ID' because LAPIC ID may not be consecutive numbers hence
it makes it impossible for LDR to encode 8 IDs within 8 bits.

This patch chooses 0 for BSP, and for APs, cpu_number which is the index
to x86_cpuboot[], which ultimately assigned in z_smp_init[].

Signed-off-by: Zide Chen <zide.chen@intel.com>
2020-05-08 22:32:39 -04:00
Henrik Brix Andersen
71b893056f drivers: i2c: add I2C bus recovery API
Add API for recovering an I2C bus. This API can be used to recover
from situations where the I2C master and one or more I2C slaves are
out of synchronization (e.g. if the I2C master was reset in the middle
of an I2C transaction or if a noise pulse was induced on the SCL
line).

Fixes #23441.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
2020-05-09 01:15:30 +02:00
Tomasz Bursztyka
97326c0445 device: Fix structure attributes access
Since struct devconfig was merged earlier into struct device, let's fix
accessing config_info, name, ... attributes everywhere via:

grep -rlZ 'dev->config->' | xargs -0 sed -i 's/dev->config->/dev->/g'

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
2020-05-08 23:07:44 +02:00
Emil Obalski
7b9fcfd30d drivers: usb: Add enum type for Synchronization Type.
This commit adds enumeration type for isochronous
endpoints specific information required by USB Audio Class.

Signed-off-by: Emil Obalski <emil.obalski@nordicsemi.no>
2020-05-08 15:12:27 +02:00
Emil Obalski
9e998d108a drivers: usb: Correct naming for endpoint Transfer Type
This commit updates definitions to better match usb 2.0 spec.

Signed-off-by: Emil Obalski <emil.obalski@nordicsemi.no>
2020-05-08 15:12:27 +02:00
Peter A. Bigot
e444274e95 drivers: counter: add Maxim DS3231 support
The DS3231 is an I2C real-time clock with internal temperature
compensated oscillator, maintaining civil time to 1 s precision with
nominal 2 ppm accuracy from 0-40 Cel.

The basic functionality is exposed as a counter that is always running
at 1 Hz.  Much more functionality is exposed as driver-specific API,
including the ability to translate between the time scale of the DS3231
and the time scale of the Zephyr uptime clock.  This allows correlation
of events in the system clock to UTC, TAI, or whatever time scale is
used to maintain the DS3231.

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2020-05-07 19:45:06 +02:00
Andreas Sandberg
d3c6cfc0ee drivers: lora: Add a continuous wave test API
Add an API to transmit a continuous wave at a fixed frequency. This
functionality is useful to test the radio in a lab setup.

Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se>
2020-05-07 14:49:06 +02:00
Sandeep Tripathy
bd985dcd67 drivers: add GIC V3 driver
Add basic driver for GIC V3 interrupt controller.

This implementation supports
 - distributor, re-distributor and cpu interface initialization
 - configuration and handling of SPI, PPI and SGI.
 - V2 Legacy mode is not supported and uses system interface.

Current implementation supports GIC secure state only.
All interrupts are routed to Secure EL1 as 'irq' by configuring
them as Group1 Secure.

TODO:
- MPIDR based affinity routing setting.
- percpu redistributor probe
- message based SPI and SGI generation api
- EL1NS support. Legacy mode support.
- LPI/ITS is not supported.

Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
2020-05-07 14:22:53 +02:00