commit d219fa3c481509e57c99fface2fa8001b579f923
author Naveen Moses <naveen.mosess@hcl.com> Wed Jul 20 00:01:46 2022 +0530
committer Naveen Moses <naveen.mosess@hcl.com> Tue Oct 18 13:12:50 2022 +0000
tree a6876c5ac0d44025789af6f4a0fada56af823fe8
parent 4250785723d92b6578176a2d961d47ab66e08124

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

meson.build

diff --git a/meson.build b/meson.build
index 8b726f4..6a3d319 100644
--- a/meson.build
+++ b/meson.build
@@ -20,6 +20,8 @@
                  '/xyz/openbmc_project/Chassis/Buttons/HostSelector')
 conf_data.set_quoted('DBG_HS_DBUS_OBJECT_NAME',
                  '/xyz/openbmc_project/Chassis/Buttons/DebugHostSelector')
+conf_data.set_quoted('SERIAL_CONSOLE_MUX_DBUS_OBJECT_NAME',
+                 '/xyz/openbmc_project/Chassis/Buttons/SerialUartMux')
 conf_data.set_quoted('GPIO_BASE_LABEL_NAME', '1e780000.gpio')
 conf_data.set_quoted('CHASSIS_STATE_OBJECT_NAME',
                  '/xyz/openbmc_project/state/chassis')
@@ -63,6 +65,7 @@
     'src/gpio.cpp',
     'src/hostSelector_switch.cpp',
     'src/debugHostSelector_button.cpp',
+    'src/serial_uart_mux.cpp',
     'src/id_button.cpp',
     'src/main.cpp',
     'src/power_button.cpp',