Patrick Venture | 391b8b0 | 2018-03-08 08:31:13 -0800 | [diff] [blame] | 1 | /** |
| 2 | * Copyright 2017 Google Inc. |
| 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 <stdint.h> |
| 18 | |
| 19 | #include <map> |
| 20 | #include <string> |
| 21 | #include <tuple> |
| 22 | |
| 23 | #include <sdbusplus/bus.hpp> |
| 24 | #include <sdbusplus/message.hpp> |
| 25 | |
| 26 | #include "host-ipmid/ipmid-api.h" |
| 27 | #include "host-ipmid/oemopenbmc.hpp" |
| 28 | #include "host-ipmid/oemrouter.hpp" |
| 29 | |
| 30 | enum ManualSubCmd |
| 31 | { |
| 32 | GET_CONTROL_STATE = 0, |
| 33 | SET_CONTROL_STATE = 1, |
| 34 | GET_FAILSAFE_STATE = 2, |
| 35 | }; |
| 36 | |
| 37 | struct FanCtrlRequest { |
| 38 | uint8_t command; |
| 39 | uint8_t zone; |
| 40 | } __attribute__((packed)); |
| 41 | |
| 42 | struct FanCtrlRequestSet { |
| 43 | uint8_t command; |
| 44 | uint8_t zone; |
| 45 | uint8_t value; |
| 46 | } __attribute__((packed)); |
| 47 | |
| 48 | static constexpr auto objectPath = "/xyz/openbmc_project/settings/fanctrl/zone"; |
| 49 | static constexpr auto busName = "xyz.openbmc_project.State.FanCtrl"; |
Patrick Venture | dc3b790 | 2018-03-24 10:41:19 -0700 | [diff] [blame] | 50 | static constexpr auto intf = "xyz.openbmc_project.Control.Mode"; |
Patrick Venture | 391b8b0 | 2018-03-08 08:31:13 -0800 | [diff] [blame] | 51 | static constexpr auto manualProperty = "Manual"; |
| 52 | static constexpr auto failsafeProperty = "FailSafe"; |
| 53 | static constexpr auto propertiesintf = "org.freedesktop.DBus.Properties"; |
| 54 | |
| 55 | using Property = std::string; |
| 56 | using Value = sdbusplus::message::variant<bool>; |
| 57 | using PropertyMap = std::map<Property, Value>; |
| 58 | |
| 59 | /* The following was copied directly from my manual thread handler. */ |
| 60 | static std::string GetControlPath(int8_t zone) |
| 61 | { |
| 62 | return std::string(objectPath) + std::to_string(zone); |
| 63 | } |
| 64 | |
| 65 | /* |
| 66 | * busctl call xyz.openbmc_project.State.FanCtrl \ |
| 67 | * /xyz/openbmc_project/settings/fanctrl/zone1 \ |
| 68 | * org.freedesktop.DBus.Properties \ |
| 69 | * GetAll \ |
| 70 | * s \ |
Patrick Venture | dc3b790 | 2018-03-24 10:41:19 -0700 | [diff] [blame] | 71 | * xyz.openbmc_project.Control.Mode |
Patrick Venture | 391b8b0 | 2018-03-08 08:31:13 -0800 | [diff] [blame] | 72 | * a{sv} 2 "Manual" b false "FailSafe" b false |
| 73 | */ |
| 74 | |
| 75 | static ipmi_ret_t |
| 76 | GetFanCtrlProperty(uint8_t zoneId, bool *value, const std::string &property) |
| 77 | { |
| 78 | std::string path = GetControlPath(zoneId); |
| 79 | |
| 80 | auto propertyReadBus = sdbusplus::bus::new_default(); |
| 81 | auto pimMsg = propertyReadBus.new_method_call(busName, |
| 82 | path.c_str(), |
| 83 | propertiesintf, |
| 84 | "GetAll"); |
| 85 | pimMsg.append(intf); |
| 86 | |
| 87 | auto valueResponseMsg = propertyReadBus.call(pimMsg); |
| 88 | if (valueResponseMsg.is_method_error()) |
| 89 | { |
| 90 | return IPMI_CC_INVALID; |
| 91 | } |
| 92 | |
| 93 | PropertyMap propMap; |
| 94 | valueResponseMsg.read(propMap); |
| 95 | |
| 96 | if (propMap.size() != 2) |
| 97 | { |
| 98 | return IPMI_CC_INVALID; |
| 99 | } |
| 100 | |
| 101 | *value = sdbusplus::message::variant_ns::get<bool>(propMap[property]); |
| 102 | |
| 103 | return IPMI_CC_OK; |
| 104 | } |
| 105 | |
| 106 | static ipmi_ret_t |
| 107 | GetFailsafeModeState(const uint8_t* reqBuf, uint8_t* replyBuf, size_t* dataLen) |
| 108 | { |
| 109 | ipmi_ret_t rc = IPMI_CC_OK; |
| 110 | bool current; |
| 111 | |
| 112 | if (*dataLen < sizeof(struct FanCtrlRequest)) |
| 113 | { |
| 114 | return IPMI_CC_INVALID; |
| 115 | } |
| 116 | |
| 117 | const auto request = |
| 118 | reinterpret_cast<const struct FanCtrlRequest*>(&reqBuf[0]); |
| 119 | |
| 120 | rc = GetFanCtrlProperty(request->zone, ¤t, failsafeProperty); |
| 121 | if (rc) |
| 122 | { |
| 123 | return rc; |
| 124 | } |
| 125 | |
| 126 | *replyBuf = (uint8_t)current; |
| 127 | *dataLen = sizeof(uint8_t); |
| 128 | return rc; |
| 129 | } |
| 130 | |
| 131 | /* |
| 132 | * <method name="GetAll"> |
| 133 | * <arg name="interface" direction="in" type="s"/> |
| 134 | * <arg name="properties" direction="out" type="a{sv}"/> |
| 135 | * </method> |
| 136 | */ |
| 137 | static ipmi_ret_t |
| 138 | GetManualModeState(const uint8_t* reqBuf, uint8_t* replyBuf, size_t* dataLen) |
| 139 | { |
| 140 | ipmi_ret_t rc = IPMI_CC_OK; |
| 141 | bool current; |
| 142 | |
| 143 | if (*dataLen < sizeof(struct FanCtrlRequest)) |
| 144 | { |
| 145 | return IPMI_CC_INVALID; |
| 146 | } |
| 147 | |
| 148 | const auto request = |
| 149 | reinterpret_cast<const struct FanCtrlRequest*>(&reqBuf[0]); |
| 150 | |
| 151 | rc = GetFanCtrlProperty(request->zone, ¤t, manualProperty); |
| 152 | if (rc) |
| 153 | { |
| 154 | return rc; |
| 155 | } |
| 156 | |
| 157 | *replyBuf = (uint8_t)current; |
| 158 | *dataLen = sizeof(uint8_t); |
| 159 | return rc; |
| 160 | } |
| 161 | |
| 162 | /* |
| 163 | * <method name="Set"> |
| 164 | * <arg name="interface" direction="in" type="s"/> |
| 165 | * <arg name="property" direction="in" type="s"/> |
| 166 | * <arg name="value" direction="in" type="v"/> |
| 167 | * </method> |
| 168 | */ |
| 169 | static ipmi_ret_t |
| 170 | SetManualModeState(const uint8_t* reqBuf, uint8_t* replyBuf, size_t* dataLen) |
| 171 | { |
| 172 | ipmi_ret_t rc = IPMI_CC_OK; |
| 173 | if (*dataLen < sizeof(struct FanCtrlRequestSet)) |
| 174 | { |
| 175 | return IPMI_CC_INVALID; |
| 176 | } |
| 177 | |
| 178 | using Value = sdbusplus::message::variant<bool>; |
| 179 | |
| 180 | const auto request = |
| 181 | reinterpret_cast<const struct FanCtrlRequestSet*>(&reqBuf[0]); |
| 182 | |
| 183 | /* 0 is false, 1 is true */ |
| 184 | bool setValue = static_cast<bool>(request->value); |
| 185 | Value v {setValue}; |
| 186 | |
| 187 | auto PropertyWriteBus = sdbusplus::bus::new_default(); |
| 188 | |
| 189 | std::string path = GetControlPath(request->zone); |
| 190 | |
| 191 | auto pimMsg = PropertyWriteBus.new_method_call(busName, |
| 192 | path.c_str(), |
| 193 | propertiesintf, |
| 194 | "Set"); |
| 195 | pimMsg.append(intf); |
| 196 | pimMsg.append(manualProperty); |
| 197 | pimMsg.append(v); |
| 198 | auto responseMsg = PropertyWriteBus.call(pimMsg); |
| 199 | if (responseMsg.is_method_error()) |
| 200 | { |
| 201 | rc = IPMI_CC_INVALID; |
| 202 | } |
| 203 | /* TODO(venture): Should sanity check the result. */ |
| 204 | |
| 205 | return rc; |
| 206 | } |
| 207 | |
| 208 | /* Three command packages: get, set true, set false */ |
| 209 | static ipmi_ret_t |
| 210 | ManualModeControl( |
| 211 | ipmi_cmd_t cmd, |
| 212 | const uint8_t* reqBuf, |
| 213 | uint8_t* replyCmdBuf, |
| 214 | size_t* dataLen) |
| 215 | { |
| 216 | ipmi_ret_t rc = IPMI_CC_OK; |
| 217 | // FanCtrlRequest is the smaller of the requests, so it's at a minimum. |
| 218 | if (*dataLen < sizeof(struct FanCtrlRequest)) |
| 219 | { |
| 220 | return IPMI_CC_INVALID; |
| 221 | } |
| 222 | |
| 223 | const auto request = |
| 224 | reinterpret_cast<const struct FanCtrlRequest*>(&reqBuf[0]); |
| 225 | |
| 226 | switch (request->command) |
| 227 | { |
| 228 | case GET_CONTROL_STATE: |
| 229 | return GetManualModeState(reqBuf, replyCmdBuf, dataLen); |
| 230 | case SET_CONTROL_STATE: |
| 231 | return SetManualModeState(reqBuf, replyCmdBuf, dataLen); |
| 232 | case GET_FAILSAFE_STATE: |
| 233 | return GetFailsafeModeState(reqBuf, replyCmdBuf, dataLen); |
| 234 | default: |
| 235 | rc = IPMI_CC_INVALID; |
| 236 | } |
| 237 | |
| 238 | return rc; |
| 239 | } |
| 240 | |
| 241 | void setupGlobalOemFanControl() __attribute__((constructor)); |
| 242 | |
| 243 | void setupGlobalOemFanControl() |
| 244 | { |
| 245 | ipmid::OemRouter* oemRouter = ipmid::mutableOemRouter(); |
| 246 | |
| 247 | fprintf(stderr, |
| 248 | "Registering OEM:[%#08X], Cmd:[%#04X] for Manual Zone Control\n", |
| 249 | ipmid::oem::openbmc::obmcOemNumber, |
| 250 | ipmid::oem::openbmc::OemCmd::fanManualCmd); |
| 251 | |
| 252 | oemRouter->registerHandler( |
| 253 | ipmid::oem::openbmc::obmcOemNumber, |
| 254 | ipmid::oem::openbmc::OemCmd::fanManualCmd, |
| 255 | ManualModeControl); |
| 256 | } |