/*++
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Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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Module Name:
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CmosTable.h
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Abstract:
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--*/
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#include <Base.h>
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#include <Library/IoLib.h>
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#include <Library/PlatformCmosLib.h>
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#include "CmosMap.h"
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#include <PchAccess.h>
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#include "PlatformBaseAddresses.h"
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#define DEFAULT_VALUE 0
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#define DEFAULT_ATTRIBUTES 0
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#define EXCLUDE_FROM_CHECKSUM CMOS_ATTRIBUTE_EXCLUDE_FROM_CHECKSUM
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#define CMOS_DEBUG_PRINT_LEVEL_DEFAULT_VALUE 0x46 // EFI_D_WARN|EFI_D_INFO|EFI_D_LOAD
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#define CMOS_DEBUG_PRINT_LEVEL_3_DEFAULT_VALUE 0x80 // EFI_D_ERROR
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//
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// Add the CMOS entry below
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//
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CMOS_ENTRY mCmosTable[] = {
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{ CPU_HT_POLICY, CPU_HT_POLICY_ENABLED, EXCLUDE_FROM_CHECKSUM },
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{ TPM_POLICY, TPM_POLICY_ENABLED, DEFAULT_ATTRIBUTES },
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{ CMOS_LCDPANELTYPE_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_LCDPANELSCALING_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_IGDBOOTTYPE_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_BACKLIGHT_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_LFP_PANEL_COLOR_DEPTH_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_EDP_ACTIVE_LFP_CONFIG_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_PRIMARY_DISPLAY_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_IGD_DISPLAY_PIPE_B_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_SDVOPANELTYPE_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_PLATFORM_RESET_OS, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_CPU_BSP_SELECT, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_CPU_RATIO_OFFSET, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_ICH_PORT80_OFFSET, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ CMOS_MAXRATIO_CONFIG_REG, DEFAULT_VALUE, DEFAULT_ATTRIBUTES },
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{ RTC_ADDRESS_CENTURY, RTC_ADDRESS_CENTURY_DEFAULT, CMOS_ATTRIBUTE_EXCLUDE_FROM_CHECKSUM },
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{ CMOS_POST_CODE_BREAK_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
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{ CMOS_POST_CODE_BREAK_1_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
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{ CMOS_POST_CODE_BREAK_2_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
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{ CMOS_POST_CODE_BREAK_3_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
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{ CMOS_DEBUG_PRINT_LEVEL_REG, CMOS_DEBUG_PRINT_LEVEL_DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
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{ CMOS_DEBUG_PRINT_LEVEL_1_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
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{ CMOS_DEBUG_PRINT_LEVEL_2_REG, DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
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{ CMOS_DEBUG_PRINT_LEVEL_3_REG, CMOS_DEBUG_PRINT_LEVEL_3_DEFAULT_VALUE, EXCLUDE_FROM_CHECKSUM },
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};
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/**
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Funtion to return platform CMOS entry.
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@param [out] CmosEntry Platform CMOS entry.
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@param [out] CmosEntryCount Number of platform CMOS entry.
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@return Status.
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**/
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RETURN_STATUS
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EFIAPI
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GetPlatformCmosEntry (
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OUT CMOS_ENTRY **CmosEntry,
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OUT UINTN *CmosEntryCount
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)
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{
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*CmosEntry = mCmosTable;
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*CmosEntryCount = sizeof(mCmosTable)/sizeof(mCmosTable[0]);
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return RETURN_SUCCESS;
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}
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/**
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Function to check if Battery lost or CMOS cleared.
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@reval TRUE Battery is always present.
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@reval FALSE CMOS is cleared.
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**/
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BOOLEAN
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EFIAPI
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CheckCmosBatteryStatus (
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VOID
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)
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{
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//
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// Check if the CMOS battery is present
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// Checks RTC_PWR_STS bit in the GEN_PMCON_1 register
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//
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if ((MmioRead8 (PMC_BASE_ADDRESS + R_PCH_PMC_GEN_PMCON_1) & B_PCH_PMC_GEN_PMCON_RTC_PWR_STS) == 0) {
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return TRUE;
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} else {
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return FALSE;
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}
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}
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