1 #pragma once 2 3 #include <string> 4 #include <sdbusplus/bus.hpp> 5 #include <sdbusplus/server/object.hpp> 6 #include <org/open_power/OCC/PassThrough/server.hpp> 7 8 namespace open_power 9 { 10 namespace occ 11 { 12 13 using Iface = sdbusplus::server::object::object< 14 sdbusplus::org::open_power::OCC::server::PassThrough>; 15 16 // For waiting on signals 17 namespace sdbusRule = sdbusplus::bus::match::rules; 18 19 /** @class PassThrough 20 * @brief Implements org.open_power.OCC.PassThrough 21 */ 22 class PassThrough : public Iface 23 { 24 public: 25 PassThrough() = delete; 26 PassThrough(const PassThrough&) = delete; 27 PassThrough& operator=(const PassThrough&) = delete; 28 PassThrough(PassThrough&&) = default; 29 PassThrough& operator=(PassThrough&&) = default; 30 31 /** @brief Ctor to put pass-through d-bus object on the bus 32 * @param[in] bus - Bus to attach to 33 * @param[in] path - Path to attach at 34 */ 35 PassThrough(sdbusplus::bus::bus& bus, 36 const char* path); 37 38 ~PassThrough() 39 { 40 closeDevice(); 41 } 42 43 /** @brief Pass through command to OCC 44 * @param[in] command - command to pass-through 45 * @returns OCC response as an array 46 */ 47 std::vector<std::int32_t> 48 send(std::vector<std::int32_t> command) override; 49 50 private: 51 /** @brief Pass-through occ path on the bus */ 52 std::string path; 53 54 /** @brief OCC device path 55 * For now, here is the hard-coded mapping until 56 * the udev rule is in. 57 * occ0 --> /dev/occ1 58 * occ1 --> /dev/occ2 59 * ... 60 */ 61 std::string devicePath; 62 63 /** brief file descriptor associated with occ device */ 64 int fd = -1; 65 66 /** @brief Subscribe to OCC Status signal 67 * 68 * Once the OCC status gets to active, only then we will get /dev/occ2 69 * populated and hence need to wait on that before opening that 70 */ 71 sdbusplus::bus::match_t activeStatusSignal; 72 73 /** Opens devicePath and populates file descritor */ 74 void openDevice(); 75 76 /** Closed the fd associated with opened device */ 77 void closeDevice(); 78 79 /** @brief Callback function on OCC Status change signals 80 * 81 * @param[in] msg - Data associated with subscribed signal 82 */ 83 void activeStatusEvent(sdbusplus::message::message& msg); 84 }; 85 86 } // namespace occ 87 } // namespace open_power 88