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cxxrtl: provide attributes to black box factories, too.

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Both parameters and attributes are necessary because the parameters
have to be the same between every instantiation of the cell, but
attributes may well vary. For example, for an UART PHY, the type
of the PHY (tty, pty, socket) would be a parameter, but configuration
of the implementation specified by the type (socket address) would
be an attribute.
This commit is contained in:
whitequark 2020-04-19 16:22:02 +00:00
parent c98cde8842
commit bf0f96b847
2 changed files with 57 additions and 49 deletions
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20
backends/cxxrtl/cxxrtl.h
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@ -659,7 +659,7 @@ struct memory {
}
};
struct parameter {
struct metadata {
const enum {
MISSING = 0,
UINT = 1,
@ -677,15 +677,15 @@ struct parameter {
const std::string string_value = "";
const double double_value = 0.0;
parameter() : value_type(MISSING) {}
parameter(unsigned value) : value_type(UINT), uint_value(value) {}
parameter(signed value) : value_type(SINT), sint_value(value) {}
parameter(const std::string &value) : value_type(STRING), string_value(value) {}
parameter(const char *value) : value_type(STRING), string_value(value) {}
parameter(double value) : value_type(DOUBLE), double_value(value) {}
metadata() : value_type(MISSING) {}
metadata(unsigned value) : value_type(UINT), uint_value(value) {}
metadata(signed value) : value_type(SINT), sint_value(value) {}
metadata(const std::string &value) : value_type(STRING), string_value(value) {}
metadata(const char *value) : value_type(STRING), string_value(value) {}
metadata(double value) : value_type(DOUBLE), double_value(value) {}
parameter(const parameter &) = default;
parameter &operator=(const parameter &) = delete;
metadata(const metadata &) = default;
metadata &operator=(const metadata &) = delete;
unsigned as_uint() const {
assert(value_type == UINT);
@ -708,7 +708,7 @@ struct parameter {
}
};
typedef std::map<std::string, parameter> parameter_map;
typedef std::map<std::string, metadata> metadata_map;
struct module {
module() {}