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code/Vezba 13 - prateci materijal/reset_agent/sv/reset_agent.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            reset_agent.sv
+
+    DESCRIPTION     
+
+ ****************************************************************************/
+
+`ifndef RESET_AGENT_SV
+`define RESET_AGENT_SV
+
+// reset sequencer
+typedef uvm_sequencer#(reset_transaction) reset_sequencer;
+    
+/**
+ * Class: reset_agent
+ */
+class reset_agent extends uvm_agent;
+    
+    // configuration object
+    reset_config cfg;
+    
+    // components
+    reset_sequencer seqr;
+    reset_driver    drv;
+    reset_monitor   mon;
+
+    // UVM factory registration
+    `uvm_component_utils_begin(reset_agent)
+        `uvm_field_enum(uvm_active_passive_enum, is_active, UVM_DEFAULT)
+    `uvm_component_utils_end
+    
+    // new - constructor
+    function new (string name = "reset_agent", 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 object from db
+        if(!uvm_config_db#(reset_config)::get(this, "", "reset_config", cfg)) begin
+            `uvm_info("NOCONFIG", "Using default reset_config", UVM_LOW)
+            cfg = reset_config::type_id::create("cfg");
+            uvm_config_db#(reset_config)::set(this, "*", "reset_config", cfg);
+        end
+        
+        // create driver and sequencer if agent is active
+        if(cfg.is_active == UVM_ACTIVE) begin
+            seqr = reset_sequencer::type_id::create("seqr", this);
+            drv = reset_driver::type_id::create("drv", this);
+        end
+        // always create monitor
+        mon = reset_monitor::type_id::create("mon", this);      
+    endfunction : build_phase
+    
+    // UVM connect_phase
+    function void connect_phase(uvm_phase phase);
+        super.connect_phase(phase);
+        // connect driver and sequencer if agent is active
+        if(cfg.is_active == UVM_ACTIVE) begin
+            drv.seq_item_port.connect(seqr.seq_item_export);
+        end
+    endfunction : connect_phase  
+  
+endclass : reset_agent
+
+`endif