1 files changed, 95 insertions, 0 deletions
diff --git a/ChvRefCodePkg/CherryViewSoc/SouthCluster/PchSmiDispatcher/Smm/PchSmmPowerButton.c b/ChvRefCodePkg/CherryViewSoc/SouthCluster/PchSmiDispatcher/Smm/PchSmmPowerButton.c
new file mode 100644
index 0000000000..efe8c61fc0
--- /dev/null
+++ b/ChvRefCodePkg/CherryViewSoc/SouthCluster/PchSmiDispatcher/Smm/PchSmmPowerButton.c
@@ -0,0 +1,95 @@
+/** @file
+  File to contain all the hardware specific stuff for the Smm Power Button dispatch protocol.
+
+  Copyright (c) 1999 - 2015, Intel Corporation. All rights reserved.<BR>
+
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PchSmmHelpers.h>
+
+CONST PCH_SMM_SOURCE_DESC POWER_BUTTON_SOURCE_DESC = {
+  PCH_SMM_SCI_EN_DEPENDENT,
+  {
+    {
+      {
+        ACPI_ADDR_TYPE,
+        R_PCH_ACPI_PM1_EN
+      },
+      S_PCH_ACPI_PM1_EN,
+      N_PCH_ACPI_PM1_EN_PWRBTN
+    },
+    NULL_BIT_DESC_INITIALIZER
+  },
+  {
+    {
+      {
+        ACPI_ADDR_TYPE,
+        R_PCH_ACPI_PM1_STS
+      },
+      S_PCH_ACPI_PM1_STS,
+      N_PCH_ACPI_PM1_STS_PWRBTN
+    }
+  }
+};
+
+/**
+  Get the power button status.
+
+  @param[in] Record               The pointer to the DATABASE_RECORD.
+  @param[out] Context             Calling context from the hardware, will be updated with the current power button status.
+
+**/
+VOID
+EFIAPI
+PowerButtonGetContext (
+  IN  DATABASE_RECORD    *Record,
+  OUT PCH_SMM_CONTEXT    *Context
+  )
+{
+  UINT16  GenPmCon2;
+  UINT32  PmcBase;
+
+  PmcBase = MmioRead32 (
+              MmPciAddress (0,
+                DEFAULT_PCI_BUS_NUMBER_PCH,
+                PCI_DEVICE_NUMBER_PCH_LPC,
+                PCI_FUNCTION_NUMBER_PCH_LPC,
+                R_PCH_LPC_PMC_BASE
+              )
+            ) & B_PCH_LPC_PMC_BASE_BAR;
+
+  GenPmCon2 = MmioRead16 (PmcBase + R_PCH_PMC_GEN_PMCON_2);
+
+  if ((GenPmCon2 & B_PCH_PMC_GEN_PMCON_PWRBTN_LVL) == 0) {
+    Context->PowerButton.Phase = EfiPowerButtonExit;
+  } else {
+    Context->PowerButton.Phase = EfiPowerButtonEntry;
+  }
+}
+
+/**
+  Check whether Power Button status of two contexts match
+
+  @param[in] Context1             Context 1 that includes Power Button status 1
+  @param[in] Context2             Context 2 that includes Power Button status 2
+
+  @retval FALSE                   Power Button status match
+  @retval TRUE                    Power Button status don't match
+**/
+BOOLEAN
+EFIAPI
+PowerButtonCmpContext (
+  IN PCH_SMM_CONTEXT     *Context1,
+  IN PCH_SMM_CONTEXT     *Context2
+  )
+{
+  return (BOOLEAN) (Context1->PowerButton.Phase == Context2->PowerButton.Phase);
+}