Shawn McCarney | 3b242b7 | 2021-08-27 09:55:22 -0500 | [diff] [blame] | 1 | /** |
| 2 | * Copyright © 2021 IBM Corporation |
| 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 "i2c_capture_bytes_action.hpp" |
| 18 | |
| 19 | #include "action_error.hpp" |
| 20 | #include "i2c_interface.hpp" |
| 21 | |
| 22 | #include <exception> |
| 23 | #include <ios> |
| 24 | #include <sstream> |
| 25 | |
| 26 | namespace phosphor::power::regulators |
| 27 | { |
| 28 | |
| 29 | bool I2CCaptureBytesAction::execute(ActionEnvironment& environment) |
| 30 | { |
| 31 | try |
| 32 | { |
| 33 | // Read device register values. Use I2C mode where the number of bytes |
| 34 | // to read is explicitly specified. |
| 35 | i2c::I2CInterface& interface = getI2CInterface(environment); |
| 36 | uint8_t size{count}; // byte count parameter is input/output |
| 37 | uint8_t values[UINT8_MAX]; |
| 38 | interface.read(reg, size, values, i2c::I2CInterface::Mode::I2C); |
| 39 | |
Shawn McCarney | 630c46f | 2021-09-02 11:20:45 -0500 | [diff] [blame] | 40 | // Build additional error data key: <deviceID>_register_<register> |
Shawn McCarney | 3b242b7 | 2021-08-27 09:55:22 -0500 | [diff] [blame] | 41 | std::ostringstream kss; |
| 42 | kss << environment.getDeviceID() << "_register_0x" << std::hex |
| 43 | << std::uppercase << static_cast<uint16_t>(reg); |
| 44 | std::string key = kss.str(); |
| 45 | |
Shawn McCarney | 630c46f | 2021-09-02 11:20:45 -0500 | [diff] [blame] | 46 | // Build additional error data value: [ <byte 0>, <byte 1>, ... ] |
Shawn McCarney | 3b242b7 | 2021-08-27 09:55:22 -0500 | [diff] [blame] | 47 | std::ostringstream vss; |
| 48 | vss << "[ " << std::hex << std::uppercase; |
| 49 | for (unsigned int i = 0; i < count; ++i) |
| 50 | { |
| 51 | vss << ((i > 0) ? ", " : "") << "0x" |
| 52 | << static_cast<uint16_t>(values[i]); |
| 53 | } |
| 54 | vss << " ]"; |
| 55 | std::string value = vss.str(); |
| 56 | |
| 57 | // Store additional error data in action environment |
| 58 | environment.addAdditionalErrorData(key, value); |
| 59 | } |
| 60 | catch (const i2c::I2CException& e) |
| 61 | { |
| 62 | // Nest I2CException within an ActionError so caller will have both the |
| 63 | // low level I2C error information and the action information |
| 64 | std::throw_with_nested(ActionError(*this)); |
| 65 | } |
| 66 | return true; |
| 67 | } |
| 68 | |
| 69 | std::string I2CCaptureBytesAction::toString() const |
| 70 | { |
| 71 | std::ostringstream ss; |
| 72 | ss << "i2c_capture_bytes: { register: 0x" << std::hex << std::uppercase |
| 73 | << static_cast<uint16_t>(reg) << ", count: " << std::dec |
| 74 | << static_cast<uint16_t>(count) << " }"; |
| 75 | return ss.str(); |
| 76 | } |
| 77 | |
| 78 | } // namespace phosphor::power::regulators |