OpenFPGA/libopenfpga/libarchopenfpga/src/read_xml_config_protocol.cpp

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/********************************************************************
* This file includes the top-level function of this library
* which reads an XML modeling OpenFPGA architecture to the associated
* data structures
*******************************************************************/
#include <string>
/* Headers from pugi XML library */
#include "pugixml.hpp"
#include "pugixml_util.hpp"
/* Headers from vtr util library */
#include "vtr_assert.h"
/* Headers from libarchfpga */
#include "arch_error.h"
#include "read_xml_util.h"
#include "read_xml_config_protocol.h"
/********************************************************************
* Convert string to the enumerate of configuration protocol type
*******************************************************************/
static
e_config_protocol_type string_to_config_protocol_type(const std::string& type_string) {
if (std::string("standalone") == type_string) {
return CONFIG_MEM_STANDALONE;
}
if (std::string("scan_chain") == type_string) {
return CONFIG_MEM_SCAN_CHAIN;
}
if (std::string("memory_bank") == type_string) {
return CONFIG_MEM_MEMORY_BANK;
}
if (std::string("frame_based") == type_string) {
return CONFIG_MEM_FRAME_BASED;
}
return NUM_CONFIG_PROTOCOL_TYPES;
}
/********************************************************************
* Parse XML codes of a <organization> to an object of configuration protocol
*******************************************************************/
static
void read_xml_config_organization(pugi::xml_node& xml_config_orgz,
const pugiutil::loc_data& loc_data,
ConfigProtocol& config_protocol) {
/* Find the type of configuration protocol */
const char* type_attr = get_attribute(xml_config_orgz, "type", loc_data).value();
/* Translate the type of design technology to enumerate */
e_config_protocol_type config_orgz_type = string_to_config_protocol_type(std::string(type_attr));
if (NUM_CONFIG_PROTOCOL_TYPES == config_orgz_type) {
archfpga_throw(loc_data.filename_c_str(), loc_data.line(xml_config_orgz),
"Invalid 'type' attribute '%s'\n",
type_attr);
}
config_protocol.set_type(config_orgz_type);
config_protocol.set_memory_model_name(get_attribute(xml_config_orgz, "circuit_model_name", loc_data).as_string());
}
/********************************************************************
* Parse XML codes about <configuration_protocol> to an object of ConfigProtocol
*******************************************************************/
ConfigProtocol read_xml_config_protocol(pugi::xml_node& Node,
const pugiutil::loc_data& loc_data) {
ConfigProtocol config_protocol;
/* Parse configuration protocol root node */
pugi::xml_node xml_config = get_single_child(Node, "configuration_protocol", loc_data);
pugi::xml_node xml_config_orgz = get_single_child(xml_config, "organization", loc_data);
read_xml_config_organization(xml_config_orgz, loc_data, config_protocol);
return config_protocol;
}