valve: add inventory item

Add Valve as an inventory item with valve direction. The valves will be
used to control the coolant flow in case of liquid cooled systems.

Change-Id: I3d6d122270809de182a77fa31ee9dcc15e2537e8
Signed-off-by: Jagpal Singh Gill <paligill@gmail.com>
diff --git a/gen/xyz/openbmc_project/Inventory/Item/Valve/meson.build b/gen/xyz/openbmc_project/Inventory/Item/Valve/meson.build
new file mode 100644
index 0000000..e3a95a6
--- /dev/null
+++ b/gen/xyz/openbmc_project/Inventory/Item/Valve/meson.build
@@ -0,0 +1,40 @@
+# Generated file; do not modify.
+
+sdbusplus_current_path = 'xyz/openbmc_project/Inventory/Item/Valve'
+
+generated_sources += custom_target(
+    'xyz/openbmc_project/Inventory/Item/Valve__cpp'.underscorify(),
+    input: [
+        '../../../../../../yaml/xyz/openbmc_project/Inventory/Item/Valve.interface.yaml',
+    ],
+    output: [
+        'common.hpp',
+        'server.hpp',
+        'server.cpp',
+        'aserver.hpp',
+        'client.hpp',
+    ],
+    depend_files: sdbusplusplus_depfiles,
+    command: [
+        sdbuspp_gen_meson_prog,
+        '--command',
+        'cpp',
+        '--output',
+        meson.current_build_dir(),
+        '--tool',
+        sdbusplusplus_prog,
+        '--directory',
+        meson.current_source_dir() / '../../../../../../yaml',
+        'xyz/openbmc_project/Inventory/Item/Valve',
+    ],
+    install: should_generate_cpp,
+    install_dir: [
+        get_option('includedir') / sdbusplus_current_path,
+        get_option('includedir') / sdbusplus_current_path,
+        false,
+        get_option('includedir') / sdbusplus_current_path,
+        get_option('includedir') / sdbusplus_current_path,
+    ],
+    build_by_default: should_generate_cpp,
+)
+
diff --git a/gen/xyz/openbmc_project/Inventory/Item/meson.build b/gen/xyz/openbmc_project/Inventory/Item/meson.build
index 91117de..41047af 100644
--- a/gen/xyz/openbmc_project/Inventory/Item/meson.build
+++ b/gen/xyz/openbmc_project/Inventory/Item/meson.build
@@ -28,6 +28,7 @@
 subdir('System')
 subdir('Tpm')
 subdir('TrustedComponent')
+subdir('Valve')
 subdir('Volume')
 subdir('Vrm')
 
@@ -766,6 +767,30 @@
 )
 
 generated_markdown += custom_target(
+    'xyz/openbmc_project/Inventory/Item/Valve__markdown'.underscorify(),
+    input: [
+        '../../../../../yaml/xyz/openbmc_project/Inventory/Item/Valve.interface.yaml',
+    ],
+    output: ['Valve.md'],
+    depend_files: sdbusplusplus_depfiles,
+    command: [
+        sdbuspp_gen_meson_prog,
+        '--command',
+        'markdown',
+        '--output',
+        meson.current_build_dir(),
+        '--tool',
+        sdbusplusplus_prog,
+        '--directory',
+        meson.current_source_dir() / '../../../../../yaml',
+        'xyz/openbmc_project/Inventory/Item/Valve',
+    ],
+    install: should_generate_markdown,
+    install_dir: [inst_markdown_dir / sdbusplus_current_path],
+    build_by_default: should_generate_markdown,
+)
+
+generated_markdown += custom_target(
     'xyz/openbmc_project/Inventory/Item/Volume__markdown'.underscorify(),
     input: [
         '../../../../../yaml/xyz/openbmc_project/Inventory/Item/Volume.interface.yaml',
diff --git a/yaml/xyz/openbmc_project/Inventory/Item/Valve.interface.yaml b/yaml/xyz/openbmc_project/Inventory/Item/Valve.interface.yaml
new file mode 100644
index 0000000..9e94567
--- /dev/null
+++ b/yaml/xyz/openbmc_project/Inventory/Item/Valve.interface.yaml
@@ -0,0 +1,29 @@
+description: >
+    Implement to provide Valve attributes. A valve helps control the flow of
+    coolant in a liquid cooling system.
+
+properties:
+    - name: Direction
+      type: enum[self.Direction]
+      default: Unknown
+      description: >
+          This property specifies the direction of the liquid flow for the
+          value.
+
+enumerations:
+    - name: Direction
+      description: >
+          This indicates the direction of liquid flow for the valve.
+      values:
+          - name: Supply
+            description: >
+                This indicates that the valve functions as the supply valve for
+                liquid flow.
+          - name: Return
+            description: >
+                This indicates that the valve functions as the return valve for
+                liquid flow.
+          - name: Unknown
+            description: >
+                This indicates the direction of liquid flow for valve is not
+                known.