1 #pragma once 2 3 #include <xyz/openbmc_project/Time/Owner/server.hpp> 4 #include <xyz/openbmc_project/Time/Synchronization/server.hpp> 5 6 namespace phosphor 7 { 8 namespace time 9 { 10 /** @brief Alias to time sync mode class */ 11 using ModeSetting = 12 sdbusplus::xyz::openbmc_project::Time::server::Synchronization; 13 14 /** @brief Alias to time owner class */ 15 using OwnerSetting = sdbusplus::xyz::openbmc_project::Time::server::Owner; 16 17 /** @brief Supported time sync modes 18 * NTP Time sourced by Network Time Server 19 * Manual User of the system need to set the time 20 */ 21 using Mode = ModeSetting::Method; 22 23 /** @brief Supported time owners 24 * BMC Time source may be NTP or Manual but it has to be set natively 25 * on the BMC. Meaning, host can not set the time. What it also 26 * means is that when BMC gets IPMI_SET_SEL_TIME, then its ignored. 27 * similarly, when BMC gets IPMI_GET_SEL_TIME, then the BMC's time 28 * is returned. 29 * 30 * Host Its only IPMI_SEL_SEL_TIME that will set the time on BMC. 31 * Meaning, IPMI_GET_SEL_TIME and request to get BMC time will 32 * result in same value. 33 * 34 * Split Both BMC and Host will maintain their individual clocks but then 35 * the time information is stored in BMC. BMC can have either NTP 36 * or Manual as it's source of time and will set the time directly 37 * on the BMC. When IPMI_SET_SEL_TIME is received, then the delta 38 * between that and BMC's time is calculated and is stored. 39 * When BMC reads the time, the current time is returned. 40 * When IPMI_GET_SEL_TIME is received, BMC's time is retrieved and 41 * then the delta offset is factored in prior to returning. 42 * 43 * Both: BMC's time is set with whoever that sets the time. Similarly, 44 * BMC's time is returned to whoever that asks the time. 45 */ 46 using Owner = OwnerSetting::Owners; 47 } // namespace time 48 } // namespace phosphor 49