xref: /openbmc/phosphor-bmc-code-mgmt/i2c-vr/vr.hpp (revision 86a2fd040a4a4184ad07be94eefba92ffb46561a)
1 #pragma once
2 
3 #include <sdbusplus/async.hpp>
4 
5 #include <cstdint>
6 #include <memory>
7 #include <string>
8 
9 namespace phosphor::software::VR
10 {
11 
12 enum class VRType
13 {
14     XDPE1X2XX,
15     ISL69269,
16     MP2X6XX,
17     MP297X,
18     RAA22XGen2,
19 };
20 
21 class VoltageRegulator
22 {
23   public:
VoltageRegulator(sdbusplus::async::context & ctx)24     explicit VoltageRegulator(sdbusplus::async::context& ctx) : ctx(ctx) {}
25     virtual ~VoltageRegulator() = default;
26 
27     VoltageRegulator(VoltageRegulator& vr) = delete;
28     VoltageRegulator& operator=(VoltageRegulator other) = delete;
29     VoltageRegulator(VoltageRegulator&& other) = delete;
30     VoltageRegulator& operator=(VoltageRegulator&& other) = delete;
31 
32     // @brief Parses the firmware image into the configuration structure
33     //        and verifies its correctness.
34     // @return sdbusplus::async::task<bool> true indicates success.
35     virtual sdbusplus::async::task<bool> verifyImage(const uint8_t* image,
36                                                      size_t imageSize) = 0;
37 
38     // @brief Applies update to the voltage regulator
39     // @return sdbusplus::async::task<bool> true indicates success.
40     virtual sdbusplus::async::task<bool> updateFirmware(bool force) = 0;
41 
42     // @brief Requests the CRC value of the voltage regulator over I2C.
43     // @param pointer to write the result to.
44     // @returns < 0 on error
45     virtual sdbusplus::async::task<bool> getCRC(uint32_t* checksum) = 0;
46 
47     // @brief This function returns true if the voltage regulator supports
48     //        force of updates.
49     virtual bool forcedUpdateAllowed() = 0;
50 
51   protected:
52     sdbusplus::async::context& ctx;
53 };
54 
55 std::unique_ptr<VoltageRegulator> create(sdbusplus::async::context& ctx,
56                                          enum VRType vrType, uint16_t bus,
57                                          uint16_t address);
58 
59 bool stringToEnum(std::string& vrStr, VRType& vrType);
60 
61 } // namespace phosphor::software::VR
62