Omap35xxPkg/Library/RealTimeClockLib: Add RTC Support
Omap35xxPkg/MmcHostDxe: Implement MmcHost protocol for Omap35xx BeagleBoardPkg: Use Omap35xx RTC and MmcHost drivers git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12161 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
297
Omap35xxPkg/Library/RealTimeClockLib/RealTimeClockLib.c
Executable file
297
Omap35xxPkg/Library/RealTimeClockLib/RealTimeClockLib.c
Executable file
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/** @file
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*
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* Copyright (c) 2011, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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#include <Uefi.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/DebugLib.h>
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#include <Library/IoLib.h>
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#include <Protocol/RealTimeClock.h>
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#include <Protocol/EmbeddedExternalDevice.h>
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#include <Omap3530/Omap3530.h>
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#include <TPS65950.h>
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EMBEDDED_EXTERNAL_DEVICE *gTPS65950;
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INT16 TimeZone = EFI_UNSPECIFIED_TIMEZONE;
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/**
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Returns the current time and date information, and the time-keeping capabilities
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of the hardware platform.
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@param Time A pointer to storage to receive a snapshot of the current time.
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@param Capabilities An optional pointer to a buffer to receive the real time clock
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device's capabilities.
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@retval EFI_SUCCESS The operation completed successfully.
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@retval EFI_INVALID_PARAMETER Time is NULL.
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@retval EFI_DEVICE_ERROR The time could not be retrieved due to hardware error.
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**/
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EFI_STATUS
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EFIAPI
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LibGetTime (
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OUT EFI_TIME *Time,
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OUT EFI_TIME_CAPABILITIES *Capabilities
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)
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{
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EFI_STATUS Status;
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UINT8 Data;
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EFI_TPL OldTpl;
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if (Time == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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OldTpl = gBS->RaiseTPL(TPL_NOTIFY);
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/* Get time and date */
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ZeroMem(Time, sizeof(EFI_TIME));
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// Latch values
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Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, RTC_CTRL_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Data |= BIT6;
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Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, RTC_CTRL_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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// Read registers
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Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, YEARS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Time->Year = 2000 + ((Data >> 4) & 0xF) * 10 + (Data & 0xF);
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Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MONTHS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Time->Month = ((Data >> 4) & 0x1) * 10 + (Data & 0xF);
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Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, DAYS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Time->Day = ((Data >> 4) & 0x3) * 10 + (Data & 0xF);
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Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, HOURS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Time->Hour = ((Data >> 4) & 0x3) * 10 + (Data & 0xF);
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Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MINUTES_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Time->Minute = ((Data >> 4) & 0x7) * 10 + (Data & 0xF);
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Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, SECONDS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Time->Second = ((Data >> 4) & 0x7) * 10 + (Data & 0xF);
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Time->TimeZone = TimeZone;
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// TODO: check what to use here
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Time->Daylight = EFI_TIME_ADJUST_DAYLIGHT;
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// Set capabilities
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// TODO: Set real capabilities
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if (Capabilities != NULL) {
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Capabilities->Resolution = 1;
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Capabilities->Accuracy = 50000000;
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Capabilities->SetsToZero = FALSE;
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}
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EXIT:
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gBS->RestoreTPL(OldTpl);
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return (Status == EFI_SUCCESS) ? Status : EFI_DEVICE_ERROR;
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}
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/**
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Sets the current local time and date information.
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@param Time A pointer to the current time.
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@retval EFI_SUCCESS The operation completed successfully.
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@retval EFI_INVALID_PARAMETER A time field is out of range.
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@retval EFI_DEVICE_ERROR The time could not be set due due to hardware error.
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**/
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EFI_STATUS
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EFIAPI
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LibSetTime (
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IN EFI_TIME *Time
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)
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{
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EFI_STATUS Status;
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UINT8 Data;
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UINT8 MonthDayCount[12] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
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EFI_TPL OldTpl;
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// Input validation according both to UEFI spec and hardware constraints
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// UEFI spec says valid year range is 1900-9999 but TPS only supports 2000-2099
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if ( (Time == NULL)
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|| (Time->Year < 2000 || Time->Year > 2099)
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|| (Time->Month < 1 || Time->Month > 12)
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|| (Time->Day < 1 || Time->Day > MonthDayCount[Time->Month])
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|| (Time->Hour > 23)
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|| (Time->Minute > 59)
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|| (Time->Second > 59)
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|| (Time->Nanosecond > 999999999)
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|| ((Time->TimeZone < -1440 || Time->TimeZone > 1440) && Time->TimeZone != 2047)
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) {
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return EFI_INVALID_PARAMETER;
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}
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OldTpl = gBS->RaiseTPL(TPL_NOTIFY);
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Data = Time->Year - 2000;
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Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, YEARS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Data = ((Time->Month / 10) << 4) | (Time->Month % 10);
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Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MONTHS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Data = ((Time->Day / 10) << 4) | (Time->Day % 10);
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Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, DAYS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Data = ((Time->Hour / 10) << 4) | (Time->Hour % 10);
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Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, HOURS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Data = ((Time->Minute / 10) << 4) | (Time->Minute % 10);
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Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, MINUTES_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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Data = ((Time->Second / 10) << 4) | (Time->Second % 10);
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Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, SECONDS_REG), 1, &Data);
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if (Status != EFI_SUCCESS) goto EXIT;
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TimeZone = Time->TimeZone;
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EXIT:
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gBS->RestoreTPL(OldTpl);
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return (Status == EFI_SUCCESS) ? Status : EFI_DEVICE_ERROR;
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}
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/**
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Returns the current wakeup alarm clock setting.
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@param Enabled Indicates if the alarm is currently enabled or disabled.
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@param Pending Indicates if the alarm signal is pending and requires acknowledgement.
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@param Time The current alarm setting.
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@retval EFI_SUCCESS The alarm settings were returned.
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@retval EFI_INVALID_PARAMETER Any parameter is NULL.
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@retval EFI_DEVICE_ERROR The wakeup time could not be retrieved due to a hardware error.
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**/
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EFI_STATUS
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EFIAPI
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LibGetWakeupTime (
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OUT BOOLEAN *Enabled,
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OUT BOOLEAN *Pending,
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OUT EFI_TIME *Time
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)
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{
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return EFI_UNSUPPORTED;
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}
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/**
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Sets the system wakeup alarm clock time.
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@param Enabled Enable or disable the wakeup alarm.
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@param Time If Enable is TRUE, the time to set the wakeup alarm for.
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@retval EFI_SUCCESS If Enable is TRUE, then the wakeup alarm was enabled. If
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Enable is FALSE, then the wakeup alarm was disabled.
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@retval EFI_INVALID_PARAMETER A time field is out of range.
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@retval EFI_DEVICE_ERROR The wakeup time could not be set due to a hardware error.
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@retval EFI_UNSUPPORTED A wakeup timer is not supported on this platform.
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**/
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EFI_STATUS
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EFIAPI
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LibSetWakeupTime (
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IN BOOLEAN Enabled,
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OUT EFI_TIME *Time
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)
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{
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return EFI_UNSUPPORTED;
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}
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/**
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This is the declaration of an EFI image entry point. This can be the entry point to an application
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written to this specification, an EFI boot service driver, or an EFI runtime driver.
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@param ImageHandle Handle that identifies the loaded image.
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@param SystemTable System Table for this image.
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@retval EFI_SUCCESS The operation completed successfully.
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**/
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EFI_STATUS
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EFIAPI
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LibRtcInitialize (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_HANDLE Handle;
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UINT8 Data;
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EFI_TPL OldTpl;
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Status = gBS->LocateProtocol (&gEmbeddedExternalDeviceProtocolGuid, NULL, (VOID **)&gTPS65950);
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ASSERT_EFI_ERROR(Status);
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OldTpl = gBS->RaiseTPL(TPL_NOTIFY);
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Data = 1;
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Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, RTC_CTRL_REG), 1, &Data);
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ASSERT_EFI_ERROR(Status);
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gBS->RestoreTPL(OldTpl);
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// Setup the setters and getters
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gRT->GetTime = LibGetTime;
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gRT->SetTime = LibSetTime;
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gRT->GetWakeupTime = LibGetWakeupTime;
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gRT->SetWakeupTime = LibSetWakeupTime;
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// Install the protocol
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Handle = NULL;
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Status = gBS->InstallMultipleProtocolInterfaces (
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&Handle,
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&gEfiRealTimeClockArchProtocolGuid, NULL,
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NULL
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);
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return Status;
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}
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/**
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Fixup internal data so that EFI can be call in virtual mode.
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Call the passed in Child Notify event and convert any pointers in
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lib to virtual mode.
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@param[in] Event The Event that is being processed
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@param[in] Context Event Context
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**/
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VOID
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EFIAPI
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LibRtcVirtualNotifyEvent (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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return;
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}
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