regulators: Implements support for i2c_write_bytes
Implements support for parsing the i2c_write_bytes JSON elements in the
configuration file parser.
Signed-off-by: Bob King <Bob_King@wistron.com>
Change-Id: I6233361a6cc5a243b563e59e1aec70eec7a5b7f5
diff --git a/phosphor-regulators/src/config_file_parser.cpp b/phosphor-regulators/src/config_file_parser.cpp
index 791f3f7..3959978 100644
--- a/phosphor-regulators/src/config_file_parser.cpp
+++ b/phosphor-regulators/src/config_file_parser.cpp
@@ -113,9 +113,8 @@
}
else if (element.contains("i2c_write_bytes"))
{
- // TODO: Not implemented yet
- // action = parseI2CWriteBytes(element["i2c_write_bytes"]);
- // ++propertyCount;
+ action = parseI2CWriteBytes(element["i2c_write_bytes"]);
+ ++propertyCount;
}
else if (element.contains("if"))
{
@@ -193,6 +192,17 @@
return chassis;
}
+std::vector<uint8_t> parseHexByteArray(const json& element)
+{
+ verifyIsArray(element);
+ std::vector<uint8_t> values;
+ for (auto& valueElement : element)
+ {
+ values.emplace_back(parseHexByte(valueElement));
+ }
+ return values;
+}
+
std::unique_ptr<I2CWriteBitAction> parseI2CWriteBit(const json& element)
{
verifyIsObject(element);
@@ -200,7 +210,7 @@
// Required register property
const json& regElement = getRequiredProperty(element, "register");
- uint8_t reg = parseStringToUint8(regElement);
+ uint8_t reg = parseHexByte(regElement);
++propertyCount;
// Required position property
@@ -226,12 +236,12 @@
// Required register property
const json& regElement = getRequiredProperty(element, "register");
- uint8_t reg = parseStringToUint8(regElement);
+ uint8_t reg = parseHexByte(regElement);
++propertyCount;
// Required value property
const json& valueElement = getRequiredProperty(element, "value");
- uint8_t value = parseStringToUint8(valueElement);
+ uint8_t value = parseHexByte(valueElement);
++propertyCount;
// Optional mask property
@@ -239,7 +249,7 @@
auto maskIt = element.find("mask");
if (maskIt != element.end())
{
- mask = parseStringToUint8(*maskIt);
+ mask = parseHexByte(*maskIt);
++propertyCount;
}
@@ -249,6 +259,46 @@
return std::make_unique<I2CWriteByteAction>(reg, value, mask);
}
+std::unique_ptr<I2CWriteBytesAction> parseI2CWriteBytes(const json& element)
+{
+ verifyIsObject(element);
+ unsigned int propertyCount{0};
+
+ // Required register property
+ const json& regElement = getRequiredProperty(element, "register");
+ uint8_t reg = parseHexByte(regElement);
+ ++propertyCount;
+
+ // Required values property
+ const json& valueElement = getRequiredProperty(element, "values");
+ std::vector<uint8_t> values = parseHexByteArray(valueElement);
+ ++propertyCount;
+
+ // Optional masks property
+ std::vector<uint8_t> masks{};
+ auto masksIt = element.find("masks");
+ if (masksIt != element.end())
+ {
+ masks = parseHexByteArray(*masksIt);
+ ++propertyCount;
+ }
+
+ // Verify masks array (if specified) was same size as values array
+ if ((!masks.empty()) && (masks.size() != values.size()))
+ {
+ throw std::invalid_argument{"Invalid number of elements in masks"};
+ }
+
+ // Verify no invalid properties exist
+ verifyPropertyCount(element, propertyCount);
+
+ if (masks.empty())
+ {
+ return std::make_unique<I2CWriteBytesAction>(reg, values);
+ }
+ return std::make_unique<I2CWriteBytesAction>(reg, values, masks);
+}
+
std::unique_ptr<PMBusWriteVoutCommandAction>
parsePMBusWriteVoutCommand(const json& element)
{