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code/Vezba 13 - prateci materijal/i2c_uvc/sv/i2c_env.sv

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+/****************************************************************************
+    +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+ +-+-+-+-+-+-+-+-+
+    |F|u|n|c|t|i|o|n|a|l| |V|e|r|i|f|i|c|a|t|i|o|n| |o|f| |H|a|r|d|w|a|r|e|
+    +-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+ +-+-+-+-+-+-+-+-+
+
+    FILE            i2c_env.sv
+
+    DESCRIPTION     environment containing the master and slave agents
+
+ ****************************************************************************/
+
+`ifndef I2C_ENV_SV
+`define I2C_ENV_SV
+
+/**
+ * Class: i2c_env
+ */
+class i2c_env extends uvm_env;
+
+    i2c_slave_agent  slave;  // one slave
+    i2c_master_agent master; // one master
+
+    i2c_config cfg; // uvc configuration
+
+    // UVM factory registration
+    `uvm_component_utils_begin(i2c_env)
+        `uvm_field_object(cfg, UVM_DEFAULT)
+    `uvm_component_utils_end    
+
+    // new - constructor
+    function new(string name = "i2c_env", uvm_component parent = null);
+        super.new(name, parent);
+    endfunction : new
+
+    // UVM build_phase
+    function void build_phase(uvm_phase phase);
+        super.build_phase(phase);
+    
+        // get configuration from db or use default configuration if none is set
+        if(!uvm_config_db#(i2c_config)::get(this, "", "i2c_config", cfg)) begin
+            `uvm_info("NOCONFIG", "Using default_i2c_config", UVM_LOW)
+            i2c_config::type_id::set_type_override(default_i2c_config::get_type(), 1);
+            cfg = i2c_config::type_id::create("cfg");
+        end
+            
+        // set the master configuration
+        if(cfg.has_master) begin
+            uvm_config_db#(i2c_master_config)::set(this, "master*", "i2c_master_config", cfg.master_cfg);
+            uvm_config_db#(i2c_config)::set(this, "master.mon*", "i2c_config", cfg);
+        end
+        // set the slave configuration
+        if(cfg.has_slave) begin
+            uvm_config_db#(i2c_slave_config)::set(this, "slave*", "i2c_slave_config", cfg.slave_cfg);
+            uvm_config_db#(i2c_config)::set(this, "slave.mon*", "i2c_config", cfg);
+        end
+
+        // create agents
+        if(cfg.has_master) begin
+            master = i2c_master_agent::type_id::create("master", this);
+        end
+        if(cfg.has_slave) begin
+            slave = i2c_slave_agent::type_id::create("slave", this);
+        end
+
+    endfunction : build_phase  
+
+endclass : i2c_env
+
+`endif
+