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//////////////////////////////////////////////////////////////////////

////                                                              ////

////  ORPSoC SystemC Testbench                                    ////

////                                                              ////

////  Description                                                 ////

////  ORPSoC Testbench file                                       ////

////                                                              ////

////  To Do:                                                      ////

////        Somehow allow tracing to begin later in the sim       ////

////                                                              ////

////                                                              ////

////  Author(s):                                                  ////

////      - Jeremy Bennett jeremy.bennett@embecosm.com            ////

////      - Julius Baxter jb@orsoc.se                             ////

////                                                              ////

////                                                              ////

//////////////////////////////////////////////////////////////////////

////                                                              ////

//// Copyright (C) 2009 Authors and OPENCORES.ORG                 ////

////                                                              ////

//// This source file may be used and distributed without         ////

//// restriction provided that this copyright statement is not    ////

//// removed from the file and that any derivative work contains  ////

//// the original copyright notice and the associated disclaimer. ////

////                                                              ////

//// This source file is free software; you can redistribute it   ////

//// and/or modify it under the terms of the GNU Lesser General   ////

//// Public License as published by the Free Software Foundation; ////

//// either version 2.1 of the License, or (at your option) any   ////

//// later version.                                               ////

////                                                              ////

//// This source is distributed in the hope that it will be       ////

//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////

//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////

//// PURPOSE.  See the GNU Lesser General Public License for more ////

//// details.                                                     ////

////                                                              ////

//// You should have received a copy of the GNU Lesser General    ////

//// Public License along with this source; if not, download it   ////

//// from http://www.opencores.org/lgpl.shtml                     ////

////                                                              ////

//////////////////////////////////////////////////////////////////////

#include "OrpsocMain.h"

#include "Vorpsoc_top.h"

#include "OrpsocAccess.h"

#include "TraceSC.h"

#include "ResetSC.h"

#include "Or1200MonitorSC.h"

#include "UartSC.h"

int sc_main (int   argc,

             char *argv[] )

{

  // CPU clock (also used as JTAG TCK) and reset (both active high and low)

  sc_time  clkPeriod (BENCH_CLK_HALFPERIOD * 2.0, TIMESCALE_UNIT);

  sc_clock             clk ("clk", clkPeriod);

  sc_signal<bool>      rst;

  sc_signal<bool>      rstn;

  sc_signal<bool>      rst_o;

  sc_signal<bool>      jtag_tdi;                // JTAG interface

  sc_signal<bool>      jtag_tdo;

  sc_signal<bool>      jtag_tms;

  sc_signal<bool>      jtag_trst;

  sc_signal<bool>      uart_rx;         // External UART

  sc_signal<bool>      uart_tx;

  sc_signal<bool> spi_sd_sclk; // SD Card Memory SPI

  sc_signal<bool> spi_sd_ss;

  sc_signal<bool> spi_sd_miso;

  sc_signal<bool> spi_sd_mosi;

  sc_signal<uint32_t> gpio_a; // GPIO bus - output only in verilator sims

  sc_signal<bool> spi1_mosi;

  sc_signal<bool> spi1_miso;

  sc_signal<bool> spi1_ss;

  sc_signal<bool> spi1_sclk;

  // Verilator accessor

  OrpsocAccess    *accessor;

  // Modules

  Vorpsoc_top *orpsoc;          // Verilated ORPSoC

  TraceSC          *trace;              // Drive VCD

  ResetSC          *reset;              // Generate a RESET signal

  Or1200MonitorSC  *monitor;            // Handle l.nop x instructions

  UartSC          *uart;                // Handle UART signals

  // Instantiate the Verilator model, VCD trace handler and accessor

  orpsoc     = new Vorpsoc_top ("orpsoc");

  trace      = new TraceSC ("trace", orpsoc, argc, argv);

  accessor   = new OrpsocAccess (orpsoc);

  // Instantiate the SystemC modules

  reset         = new ResetSC ("reset", BENCH_RESET_TIME);

  monitor       = new Or1200MonitorSC ("monitor", accessor);

  uart          = new UartSC("uart"); // TODO: Probalby some sort of param

  // Connect up ORPSoC

  orpsoc->clk_pad_i (clk);

  orpsoc->rst_pad_i (rstn);

  orpsoc->rst_pad_o (rst_o);

  orpsoc->dbg_tck_pad_i  (clk);         // JTAG interface

  orpsoc->dbg_tdi_pad_i  (jtag_tdi);

  orpsoc->dbg_tms_pad_i  (jtag_tms);

  orpsoc->dbg_tdo_pad_o  (jtag_tdo);

  orpsoc->uart0_srx_pad_i (uart_rx);            // External UART

  orpsoc->uart0_stx_pad_o (uart_tx);

  orpsoc->spi_sd_sclk_pad_o (spi_sd_sclk); // SD Card Memory SPI

  orpsoc->spi_sd_ss_pad_o (spi_sd_ss);

  orpsoc->spi_sd_miso_pad_i (spi_sd_miso);

  orpsoc->spi_sd_mosi_pad_o (spi_sd_mosi);

  orpsoc->spi1_mosi_pad_o (spi1_mosi);

  orpsoc->spi1_miso_pad_i (spi1_miso);

  orpsoc->spi1_ss_pad_o  (spi1_ss);

  orpsoc->spi1_sclk_pad_o (spi1_sclk);

  orpsoc->gpio_a_pad_io (gpio_a); // GPIO bus - output only in 

                                  // verilator sims

  // Connect up the VCD trace handler

  trace->clk (clk);                     // Trace

  // Connect up the SystemC  modules

  reset->clk (clk);                     // Reset

  reset->rst (rst);

  reset->rstn (rstn);

  monitor->clk (clk);                   // Monitor

  uart->clk (clk); // Uart

  uart->uartrx (uart_rx); // orpsoc's receive line

  uart->uarttx (uart_tx); // orpsoc's transmit line

   // Tie off signals

   jtag_tdi      = 1;                   // Tie off the JTAG inputs

   jtag_tms      = 1;

   spi_sd_miso = 0; // Tie off master-in/slave-out of SD SPI bus

  spi1_miso = 0;

  printf("Beginning test\n");

  // Init the UART function

  uart->initUart(25000000, 115200);

  // Execute until we stop

  sc_start ();

  // Free memory

  delete monitor;

  delete reset;

  delete accessor;

  delete trace;

  delete orpsoc;

  return 0;

}       /* sc_main() */