Subversion Repositories apb2spi

class spi_driver extends uvm_driver#(spi_seq_item);

        `uvm_component_utils(spi_driver)

        //uvm_analysis_port#(spi_seq_item) spi_ap;

        virtual spi_if v_intf;

        integer cnt=0;

        spi_seq_item txn;

function new(string name,uvm_component parent);

        super.new(name,parent);

        //apb_ap = new("apb_ap",this);

endfunction

function void build_phase(uvm_phase phase);

        if(!uvm_config_db #(virtual spi_if)::get(this,"","spi_vif",v_intf))

                `uvm_fatal("NO_SPI_V_INTF","Virtual interface couldn't be obtained for spi driver")

        txn = spi_seq_item::type_id::create("txn");

endfunction

task run_phase(uvm_phase phase);

        //txn = spi_seq_item::type_id::create("txn");

        forever

        begin

                fork

                begin

                        txn.rdata = txn.ss0_data;

                        wait(v_intf.SS==1'b0);

                        for(int i=0;i<=`SPI_REG_WIDTH-1;i++)

                        begin

                                @(posedge v_intf.SCLK)

                                v_intf.MISO = txn.rdata[i];

                        end

                end

                begin

                        wait(v_intf.SS==1'b0);

                        for(int i=0;i<=`SPI_REG_WIDTH-1;i++)

                        begin

                                @(posedge v_intf.SCLK)

                                txn.wdata[i] = v_intf.MOSI;

                        end

                        txn.ss0_data = txn.wdata;

                end

                join

        end

endtask

endclass