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gerrit.openbmc.org / openbmc / pfr-manager / d6f46c43cafa31dd054528c117815780137c0454 / . / libpfr / src / pfr.cpp
blob: 59929a2a924ad43f6229bd43f0885bef654057e5 [file] [log] [blame]
AppaRao Pulic532f552019-07-05 15:23:50 +0530[diff] [blame]1/*
2// Copyright (c) 2019 Intel Corporation
3//
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at
7//
8// http://www.apache.org/licenses/LICENSE-2.0
9//
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15*/
16
17#include <unistd.h>
18#include <iostream>
19#include <sstream>
20#include <iomanip>
21#include "pfr.hpp"
22#include "file.hpp"
23
24namespace intel
25{
26namespace pfr
27{
28// TODO: Dynamically pull these values from configuration
29// entity-manager, when needed
30static constexpr int i2cBusNumber = 4;
31static constexpr int i2cSlaveAddress = 0x70;
32
33// CPLD mailbox registers
34static constexpr uint8_t cpldROTVersion = 0x01;
35static constexpr uint8_t cpldROTSvn = 0x02;
36static constexpr uint8_t platformState = 0x03;
37static constexpr uint8_t recoveryCount = 0x04;
38static constexpr uint8_t lastRecoveryReason = 0x05;
39static constexpr uint8_t panicEventCount = 0x06;
40static constexpr uint8_t panicEventReason = 0x07;
41static constexpr uint8_t majorErrorCode = 0x08;
42static constexpr uint8_t minorErrorCode = 0x09;
43static constexpr uint8_t provisioningStatus = 0x0A;
44static constexpr uint8_t pchActiveMajorVersion = 0x17;
45static constexpr uint8_t pchActiveMinorVersion = 0x18;
46static constexpr uint8_t bmcActiveMajorVersion = 0x19;
47static constexpr uint8_t bmcActiveMinorVersion = 0x1A;
48static constexpr uint8_t pchRecoveryMajorVersion = 0x1C;
49static constexpr uint8_t pchRecoveryMinorVersion = 0x1D;
50static constexpr uint8_t bmcRecoveryMajorVersion = 0x1E;
51static constexpr uint8_t bmcRecoveryMinorVersion = 0x1F;
52
53static constexpr uint8_t ufmLockedMask = (0x1 << 0x04);
54static constexpr uint8_t ufmProvisionedMask = (0x1 << 0x05);
55
56template <typename T> std::string int_to_hexstring(T i)
57{
58 std::stringstream stream;
59 stream << std::setfill('0') << std::setw(sizeof(T) * 2) << std::hex
60 << static_cast<int>(i);
61 return stream.str();
62}
63
64std::string getVersionInfoCPLD(ImageType& imgType)
65{
66 try
67 {
68 uint8_t majorReg;
69 uint8_t minorReg;
70
71 switch (imgType)
72 {
73 case (ImageType::cpld):
74 {
75 majorReg = cpldROTVersion;
76 minorReg = cpldROTSvn;
77 break;
78 }
79 case (ImageType::biosActive):
80 {
81 majorReg = pchActiveMajorVersion;
82 minorReg = pchActiveMinorVersion;
83 break;
84 }
85 case (ImageType::biosRecovery):
86 {
87 majorReg = pchRecoveryMajorVersion;
88 minorReg = pchRecoveryMinorVersion;
89 break;
90 }
91 case (ImageType::bmcActive):
92 {
93 majorReg = bmcActiveMajorVersion;
94 minorReg = bmcActiveMinorVersion;
95 break;
96 }
97 case (ImageType::bmcRecovery):
98 {
99 majorReg = bmcRecoveryMajorVersion;
100 minorReg = bmcRecoveryMinorVersion;
101 break;
102 }
103 default:
104 // Invalid image Type.
105 return "";
106 }
107
108 I2CFile cpldDev(i2cBusNumber, i2cSlaveAddress, O_RDWR | O_CLOEXEC);
109 uint8_t majorVer = cpldDev.i2cReadByteData(majorReg);
110 uint8_t minorVer = cpldDev.i2cReadByteData(minorReg);
111 std::string version =
112 int_to_hexstring(majorVer) + "." + int_to_hexstring(minorVer);
113 return version;
114 }
115 catch (const std::exception& e)
116 {
117 phosphor::logging::log<phosphor::logging::level::ERR>(
118 "Exception caught in getVersionInfoCPLD.",
119 phosphor::logging::entry("MSG=%s", e.what()));
120 return "";
121 }
122}
123
124int getProvisioningStatus(bool& ufmLocked, bool& ufmProvisioned)
125{
126 try
127 {
128 I2CFile cpldDev(i2cBusNumber, i2cSlaveAddress, O_RDWR | O_CLOEXEC);
129 uint8_t provStatus = cpldDev.i2cReadByteData(provisioningStatus);
130 ufmLocked = (provStatus & ufmLockedMask);
131 ufmProvisioned = (provStatus & ufmProvisionedMask);
132 return 0;
133 }
134 catch (const std::exception& e)
135 {
136 phosphor::logging::log<phosphor::logging::level::ERR>(
137 "Exception caught in getProvisioningStatus.",
138 phosphor::logging::entry("MSG=%s", e.what()));
139 return -1;
140 }
141}
142
143} // namespace pfr
144} // namespace intel