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/*
// Copyright (c) 2019 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/
#include <unistd.h>
#include <iostream>
#include <sstream>
#include <iomanip>
#include "pfr.hpp"
#include "file.hpp"
namespace intel
{
namespace pfr
{
// TODO: Dynamically pull these values from configuration
// entity-manager, when needed
static constexpr int i2cBusNumber = 4;
static constexpr int i2cSlaveAddress = 0x70;
// CPLD mailbox registers
static constexpr uint8_t cpldROTVersion = 0x01;
static constexpr uint8_t cpldROTSvn = 0x02;
static constexpr uint8_t platformState = 0x03;
static constexpr uint8_t recoveryCount = 0x04;
static constexpr uint8_t lastRecoveryReason = 0x05;
static constexpr uint8_t panicEventCount = 0x06;
static constexpr uint8_t panicEventReason = 0x07;
static constexpr uint8_t majorErrorCode = 0x08;
static constexpr uint8_t minorErrorCode = 0x09;
static constexpr uint8_t provisioningStatus = 0x0A;
static constexpr uint8_t bmcBootCheckpoint = 0x0F;
static constexpr uint8_t pchActiveMajorVersion = 0x15;
static constexpr uint8_t pchActiveMinorVersion = 0x16;
static constexpr uint8_t bmcActiveMajorVersion = 0x18;
static constexpr uint8_t bmcActiveMinorVersion = 0x19;
static constexpr uint8_t pchRecoveryMajorVersion = 0x1B;
static constexpr uint8_t pchRecoveryMinorVersion = 0x1C;
static constexpr uint8_t bmcRecoveryMajorVersion = 0x1E;
static constexpr uint8_t bmcRecoveryMinorVersion = 0x1F;
static constexpr uint8_t ufmLockedMask = (0x1 << 0x04);
static constexpr uint8_t ufmProvisionedMask = (0x1 << 0x05);
template <typename T> std::string int_to_hexstring(T i)
{
std::stringstream stream;
stream << std::setfill('0') << std::setw(sizeof(T) * 2) << std::hex
<< static_cast<int>(i);
return stream.str();
}
std::string getVersionInfoCPLD(ImageType& imgType)
{
try
{
uint8_t majorReg;
uint8_t minorReg;
switch (imgType)
{
case (ImageType::cpld):
{
majorReg = cpldROTVersion;
minorReg = cpldROTSvn;
break;
}
case (ImageType::biosActive):
{
majorReg = pchActiveMajorVersion;
minorReg = pchActiveMinorVersion;
break;
}
case (ImageType::biosRecovery):
{
majorReg = pchRecoveryMajorVersion;
minorReg = pchRecoveryMinorVersion;
break;
}
case (ImageType::bmcActive):
{
majorReg = bmcActiveMajorVersion;
minorReg = bmcActiveMinorVersion;
break;
}
case (ImageType::bmcRecovery):
{
majorReg = bmcRecoveryMajorVersion;
minorReg = bmcRecoveryMinorVersion;
break;
}
default:
// Invalid image Type.
return "";
}
I2CFile cpldDev(i2cBusNumber, i2cSlaveAddress, O_RDWR | O_CLOEXEC);
uint8_t majorVer = cpldDev.i2cReadByteData(majorReg);
uint8_t minorVer = cpldDev.i2cReadByteData(minorReg);
std::string version =
int_to_hexstring(majorVer) + "." + int_to_hexstring(minorVer);
return version;
}
catch (const std::exception& e)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Exception caught in getVersionInfoCPLD.",
phosphor::logging::entry("MSG=%s", e.what()));
return "";
}
}
int getProvisioningStatus(bool& ufmLocked, bool& ufmProvisioned)
{
try
{
I2CFile cpldDev(i2cBusNumber, i2cSlaveAddress, O_RDWR | O_CLOEXEC);
uint8_t provStatus = cpldDev.i2cReadByteData(provisioningStatus);
ufmLocked = (provStatus & ufmLockedMask);
ufmProvisioned = (provStatus & ufmProvisionedMask);
return 0;
}
catch (const std::exception& e)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Exception caught in getProvisioningStatus.",
phosphor::logging::entry("MSG=%s", e.what()));
return -1;
}
}
int readCpldReg(const ActionType& action, uint8_t value)
{
uint8_t cpldReg;
switch (action)
{
case (ActionType::recoveryCount):
cpldReg = recoveryCount;
break;
case (ActionType::recoveryReason):
cpldReg = lastRecoveryReason;
break;
case (ActionType::panicCount):
cpldReg = panicEventCount;
break;
case (ActionType::panicReason):
cpldReg = panicEventReason;
break;
case (ActionType::majorError):
cpldReg = majorErrorCode;
break;
case (ActionType::minorError):
cpldReg = minorErrorCode;
break;
default:
phosphor::logging::log<phosphor::logging::level::ERR>(
"Invalid CPLD read action.");
return -1;
}
try
{
I2CFile cpldDev(i2cBusNumber, i2cSlaveAddress, O_RDWR | O_CLOEXEC);
value = cpldDev.i2cReadByteData(cpldReg);
return 0;
}
catch (const std::exception& e)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Exception caught in readCpldReg.",
phosphor::logging::entry("MSG=%s", e.what()));
return -1;
}
}
int setBMCBootCheckpoint(const uint8_t checkPoint)
{
try
{
I2CFile cpldDev(i2cBusNumber, i2cSlaveAddress, O_RDWR | O_CLOEXEC);
cpldDev.i2cWriteByteData(bmcBootCheckpoint, checkPoint);
return 0;
}
catch (const std::exception& e)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Exception caught in setBMCBootCheckout.",
phosphor::logging::entry("MSG=%s", e.what()));
return -1;
}
}
} // namespace pfr
} // namespace intel
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