Support host selector using cpld definitions

Description:
- Support host selector using cpld definitions

Design:
- Because the current structure only supports config defined by GPIO
(Yosemite V2)

Support host selector using cpld definitions

Description:
- Support host selector using cpld definitions

Design:
- Because the current structure only supports config defined by GPIO
(Yosemite V2), but there are also have the system (Yosemite V3.5)
gets the host-selector's selection from CPLD.

- So this commit is to extend the current configuration to use CPLD
definitions. Also, support adding event io from the register file
which was exported from the CLD driver.

- For example with config json below:
{
"cpld_definitions": [
{
"name": "HOST_SELECTOR",
"i2c_address": 15,
"i2c_bus": 12,
"register_name": "uart-selection-debug-card",
"max_position": 4
}
]
}

Dependency:
- CLD driver is required (link: https://lore.kernel.org/lkml/20230117094425.19004-1-Delphine_CC_Chiu@Wiwynn.com/)

Test Case:
- When ocp debug card uart button is pressed the position property on
dbus is correct.

Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
Change-Id: I6746afa6d905bd3c681e2921c643b3cd4cb9944c

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Add serial uart mux interface class

1. This change adds the multi-host serial uart mux interface class.

In a multi-host system when the host position is changed,
then the serial uart mux is configu

Add serial uart mux interface class

1. This change adds the multi-host serial uart mux interface class.

In a multi-host system when the host position is changed,
then the serial uart mux is configured to enable the
respective host's serial console which is accessed via
OCP debug card.

2. Introduced two new methods in gpio.cpp
setGpioState - set state for gpio fd based on polarity
getGpiostate - get state for gpio fd based on polarity

3. Updated the readme file about details on the new gpio
configs

design : https://github.com/openbmc/docs/blob/master/designs/multihost-phosphor-buttons.md

Testing : This change is verified in yosemiteV2 platform.

Signed-off-by: Naveen Moses <naveen.mosess@hcl.com>
Change-Id: I861d70570650d7dfcab842a35bdcf63a9fdd3bd0

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Add OCP debug card host selector button interface

A new button interface class definition is added for handling OCP
debug card host selector button events.
In case of the button release event, The h

Add OCP debug card host selector button interface

A new button interface class definition is added for handling OCP
debug card host selector button events.
In case of the button release event, The host selector property is
increased up to the max host position.

Design : https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/45544

Signed-off-by: Naveen Moses <naveen.mosess@hcl.com>
Change-Id: Iec8fabb00d1daa10f587981a9c77df8a62e3c373

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Update clang-format

Refer:https://github.com/openbmc/docs/blob/ac5d544553934f8083c61c5986a1420261bc8a4c/style/cpp/.clang-format

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I593ddf950

Update clang-format

Refer:https://github.com/openbmc/docs/blob/ac5d544553934f8083c61c5986a1420261bc8a4c/style/cpp/.clang-format

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I593ddf950d14009ab77251fd6d3f248214661765

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Add Host selector button interface

This change includes new button interface
for the host selector switch.

The button handler code is adapted to support
both single host and multiple host power co

Add Host selector button interface

This change includes new button interface
for the host selector switch.

The button handler code is adapted to support
both single host and multiple host power control
dbus events.

design : https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/45544

Signed-off-by: Naveen Moses <naveen.mosess@hcl.com>
Change-Id: Icbfb22baaee057fd255c3ab0cba129693b913a9d

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Add abstract factory to create button iface objects

A abstract factory class is implemented to return
the instance of button interface class based on the
button iface formfactor name provided as
pa

Add abstract factory to create button iface objects

A abstract factory class is implemented to return
the instance of button interface class based on the
button iface formfactor name provided as
parameter to the abstract factory createInstance
method.

Signed-off-by: Naveen Moses <naveen.mosess@hcl.com>
Change-Id: Ia791a2b6f52d09dd87da0e50a709fc72ac9d1bd7

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Enable group gpio configuration

This change adds support to configure single
as well as group gpio config using a single api(configGroupGpio()).
This change is introduced to support the button/input

Enable group gpio configuration

This change adds support to configure single
as well as group gpio config using a single api(configGroupGpio()).
This change is introduced to support the button/input
interfaces which has multiple gpios associated with them.

As an improvement reading of gpio def json file is
done once in main function rather than reading it
everytime before creating the button interface object.

Signed-off-by: Naveen Moses <naveen.mosess@hcl.com>
Change-Id: Ib73dda618c78fd2f14b5d3432fd04c9f4cd2dd9b

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Only create buttons when their GPIOs are defined

Look in /etc/default/obmc/gpio/gpio_defs.json to see
if the GPIO for a button is defined, and only create
the button object if it is.

This is how a

Only create buttons when their GPIOs are defined

Look in /etc/default/obmc/gpio/gpio_defs.json to see
if the GPIO for a button is defined, and only create
the button object if it is.

This is how a system implementer can specify which
button objects are needed for their particular system.

Change-Id: I359f87875b6bb5741fdf4718b30b0f5b4552a528
Signed-off-by: Matt Spinler <spinler@us.ibm.com>

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Add clang-format to repo

Add clang-format to repo.

Change-Id: I5cc1e4ed3fcbf41a28e16cf929a86cf54a3c5efb
Signed-off-by: Patrick Venture <venture@google.com>

Implement phosphor-buttons based C++ and sdbusplus interfaces.

This phosphor-buttons module handles all the physical buttons
like Reset/Power/ID button pressed/released signals and the
simulate sign

Implement phosphor-buttons based C++ and sdbusplus interfaces.

This phosphor-buttons module handles all the physical buttons
like Reset/Power/ID button pressed/released signals and the
simulate signals on button pressed/released in WebUI.

All the signals are exposed into dbus and let other
modules be aware.

Change-Id: I52144718ef54d403c5221e5afd0216b9494f8523
Signed-off-by: Kuiying Wang <kuiying.wang@intel.com>

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