blob: 2b77bcd67c2d54979485ffb8be3206cbabbe0b2f [file] [log] [blame]
#include "config.h"
#include "power_supply.hpp"
#include "types.hpp"
#include "util.hpp"
#include <xyz/openbmc_project/Common/Device/error.hpp>
#include <chrono> // sleep_for()
#include <cstdint> // uint8_t...
#include <thread> // sleep_for()
namespace phosphor::power::psu
{
using namespace phosphor::logging;
using namespace sdbusplus::xyz::openbmc_project::Common::Device::Error;
void PowerSupply::updatePresence()
{
try
{
present = getPresence(bus, inventoryPath);
}
catch (const sdbusplus::exception::SdBusError& e)
{
// Relying on property change or interface added to retry.
// Log an informational trace to the journal.
log<level::INFO>("D-Bus property access failure exception");
}
}
void PowerSupply::analyze()
{
using namespace phosphor::pmbus;
if (present)
{
try
{
auto statusWord{pmbusIntf->read(STATUS_WORD, Type::Debug)};
if (statusWord)
{
if (statusWord & status_word::INPUT_FAULT_WARN)
{
if (!inputFault)
{
log<level::INFO>(
"INPUT fault",
entry("STATUS_WORD=0x%04X",
static_cast<uint16_t>(statusWord)));
}
faultFound = true;
inputFault = true;
}
if (statusWord & status_word::MFR_SPECIFIC_FAULT)
{
if (!mfrFault)
{
log<level::INFO>(
"MFRSPECIFIC fault",
entry("STATUS_WORD=0x%04X",
static_cast<uint16_t>(statusWord)));
}
faultFound = true;
mfrFault = true;
}
if (statusWord & status_word::VIN_UV_FAULT)
{
if (!vinUVFault)
{
log<level::INFO>(
"VIN_UV fault",
entry("STATUS_WORD=0x%04X",
static_cast<uint16_t>(statusWord)));
}
faultFound = true;
vinUVFault = true;
}
}
else
{
faultFound = false;
inputFault = false;
mfrFault = false;
vinUVFault = false;
}
}
catch (ReadFailure& e)
{
phosphor::logging::commit<ReadFailure>();
}
}
}
void PowerSupply::onOffConfig(uint8_t data)
{
using namespace phosphor::pmbus;
if (present)
{
log<level::INFO>("ON_OFF_CONFIG write", entry("DATA=0x%02X", data));
try
{
std::vector<uint8_t> configData{data};
pmbusIntf->writeBinary(ON_OFF_CONFIG, configData,
Type::HwmonDeviceDebug);
}
catch (...)
{
// The underlying code in writeBinary will log a message to the
// journal if the write fails. If the ON_OFF_CONFIG is not setup as
// desired, later fault detection and analysis code should catch any
// of the fall out. We should not need to terminate the application
// if this write fails.
}
}
}
void PowerSupply::clearFaults()
{
faultFound = false;
inputFault = false;
mfrFault = false;
vinUVFault = false;
// The PMBus device driver does not allow for writing CLEAR_FAULTS
// directly. However, the pmbus hwmon device driver code will send a
// CLEAR_FAULTS after reading from any of the hwmon "files" in sysfs, so
// reading in1_input should result in clearing the fault bits in
// STATUS_BYTE/STATUS_WORD.
// I do not care what the return value is.
try
{
static_cast<void>(
pmbusIntf->read("in1_input", phosphor::pmbus::Type::Hwmon));
}
catch (ReadFailure& e)
{
// Since I do not care what the return value is, I really do not
// care much if it gets a ReadFailure either. However, this should not
// prevent the application from continuing to run, so catching the read
// failure.
}
}
void PowerSupply::inventoryChanged(sdbusplus::message::message& msg)
{
std::string msgSensor;
std::map<std::string, std::variant<uint32_t, bool>> msgData;
msg.read(msgSensor, msgData);
// Check if it was the Present property that changed.
auto valPropMap = msgData.find(PRESENT_PROP);
if (valPropMap != msgData.end())
{
if (std::get<bool>(valPropMap->second))
{
present = true;
// TODO: Immediately trying to read or write the "files" causes read
// or write failures.
using namespace std::chrono_literals;
std::this_thread::sleep_for(20ms);
onOffConfig(phosphor::pmbus::ON_OFF_CONFIG_CONTROL_PIN_ONLY);
clearFaults();
updateInventory();
}
else
{
present = false;
// Clear out the now outdated inventory properties
updateInventory();
}
}
}
void PowerSupply::updateInventory()
{
using namespace phosphor::pmbus;
#ifdef IBM_VPD
std::string ccin;
std::string pn;
std::string fn;
std::string header;
std::string sn;
std::string version;
using PropertyMap =
std::map<std::string, std::variant<std::string, std::vector<uint8_t>>>;
PropertyMap assetProps;
PropertyMap versionProps;
PropertyMap ipzvpdDINFProps;
PropertyMap ipzvpdVINIProps;
using InterfaceMap = std::map<std::string, PropertyMap>;
InterfaceMap interfaces;
using ObjectMap = std::map<sdbusplus::message::object_path, InterfaceMap>;
ObjectMap object;
#endif
if (present)
{
// TODO: non-IBM inventory updates?
#ifdef IBM_VPD
try
{
ccin = pmbusIntf->readString(CCIN, Type::HwmonDeviceDebug);
assetProps.emplace(MODEL_PROP, ccin);
}
catch (ReadFailure& e)
{
// Ignore the read failure, let pmbus code indicate failure, path...
// TODO - ibm918
// https://github.com/openbmc/docs/blob/master/designs/vpd-collection.md
// The BMC must log errors if any of the VPD cannot be properly
// parsed or fails ECC checks.
}
try
{
pn = pmbusIntf->readString(PART_NUMBER, Type::HwmonDeviceDebug);
assetProps.emplace(PN_PROP, pn);
}
catch (ReadFailure& e)
{
// Ignore the read failure, let pmbus code indicate failure, path...
}
try
{
fn = pmbusIntf->readString(FRU_NUMBER, Type::HwmonDeviceDebug);
}
catch (ReadFailure& e)
{
// Ignore the read failure, let pmbus code indicate failure, path...
}
try
{
header =
pmbusIntf->readString(SERIAL_HEADER, Type::HwmonDeviceDebug);
sn = pmbusIntf->readString(SERIAL_NUMBER, Type::HwmonDeviceDebug);
assetProps.emplace(SN_PROP, sn);
}
catch (ReadFailure& e)
{
// Ignore the read failure, let pmbus code indicate failure, path...
}
try
{
version = pmbusIntf->readString(FW_VERSION, Type::HwmonDeviceDebug);
versionProps.emplace(VERSION_PROP, version);
}
catch (ReadFailure& e)
{
// Ignore the read failure, let pmbus code indicate failure, path...
}
ipzvpdVINIProps.emplace("CC",
std::vector<uint8_t>(ccin.begin(), ccin.end()));
ipzvpdVINIProps.emplace("PN",
std::vector<uint8_t>(pn.begin(), pn.end()));
ipzvpdVINIProps.emplace("FN",
std::vector<uint8_t>(fn.begin(), fn.end()));
std::string header_sn = header + sn + '\0';
ipzvpdVINIProps.emplace(
"SN", std::vector<uint8_t>(header_sn.begin(), header_sn.end()));
std::string description = "IBM PS";
ipzvpdVINIProps.emplace(
"DR", std::vector<uint8_t>(description.begin(), description.end()));
// Update the Resource Identifier (RI) keyword
// 2 byte FRC: 0x0003
// 2 byte RID: 0x1000, 0x1001...
std::uint8_t num = std::stoul(
inventoryPath.substr(inventoryPath.size() - 1, 1), nullptr, 0);
std::vector<uint8_t> ri{0x00, 0x03, 0x10, num};
ipzvpdDINFProps.emplace("RI", ri);
// Fill in the FRU Label (FL) keyword.
std::string fl = "E";
fl.push_back(inventoryPath.back());
fl.resize(FL_KW_SIZE, ' ');
ipzvpdDINFProps.emplace("FL",
std::vector<uint8_t>(fl.begin(), fl.end()));
interfaces.emplace(ASSET_IFACE, std::move(assetProps));
interfaces.emplace(VERSION_IFACE, std::move(versionProps));
interfaces.emplace(DINF_IFACE, std::move(ipzvpdDINFProps));
interfaces.emplace(VINI_IFACE, std::move(ipzvpdVINIProps));
auto path = inventoryPath.substr(strlen(INVENTORY_OBJ_PATH));
object.emplace(path, std::move(interfaces));
try
{
auto service =
util::getService(INVENTORY_OBJ_PATH, INVENTORY_MGR_IFACE, bus);
if (service.empty())
{
log<level::ERR>("Unable to get inventory manager service");
return;
}
auto method =
bus.new_method_call(service.c_str(), INVENTORY_OBJ_PATH,
INVENTORY_MGR_IFACE, "Notify");
method.append(std::move(object));
auto reply = bus.call(method);
}
catch (std::exception& e)
{
log<level::ERR>(e.what(), entry("PATH=%s", inventoryPath.c_str()));
}
#endif
}
}
} // namespace phosphor::power::psu