verif/env/niu/rxc_sat/vera/rxdma/niu_rxdmc_init.vr

// ========== Copyright Header Begin ==========================================
//
// OpenSPARC T2 Processor File: niu_rxdmc_init.vr
// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
// 4150 Network Circle, Santa Clara, California 95054, U.S.A.
//
// * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// For the avoidance of doubt, and except that if any non-GPL license
// choice is available it will apply instead, Sun elects to use only
// the General Public License version 2 (GPLv2) at this time for any
// software where a choice of GPL license versions is made
// available with the language indicating that GPLv2 or any later version
// may be used, or where a choice of which version of the GPL is applied is
// otherwise unspecified.
//
// Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
// CA 95054 USA or visit www.sun.com if you need additional information or
// have any questions.
//
// ========== Copyright Header End ============================================
#include "niu_rxdmc.vrh"

extern CRDMC rdmc;
class niu_rxdmc_init_class {

  task new() {
     rxdmc_init();
  }

  task rxdmc_init();
}

task niu_rxdmc_init_class::rxdmc_init() {
       shadow integer n;
       shadow integer i;
       integer dma_chnl, desc_ring_length,compl_ring_len,initial_kick;
       integer blk_size,buf_siz0,buf_siz1,buf_siz2,vld0,vld1,vld2;
       bit [63:0] rbr_config_B_data;


        if (get_plus_arg (CHECK, "LOOP_BACK_RXDMA_CHNL"))
        dma_chnl = (get_plus_arg (NUM, "LOOP_BACK_RXDMA_CHNL"))%16;
        else
        dma_chnl = 0 ;

       if (get_plus_arg (CHECK,"RX_BLKSZ"))
          blk_size = get_plus_arg(NUM,"RX_BLKSZ");
       else
          blk_size = 4;
       if (get_plus_arg (CHECK,"RX_BUF_SIZ0"))
          buf_siz0 = get_plus_arg(NUM,"RX_BUF_SIZ0");
       else
          buf_siz0 = 256;
       if (get_plus_arg (CHECK,"RX_BUF_SIZ1"))
          buf_siz1 = get_plus_arg(NUM,"RX_BUF_SIZ1");
       else
          buf_siz1 = 1024;
       if (get_plus_arg (CHECK,"RX_BUF_SIZ2"))
          buf_siz2 = get_plus_arg(NUM,"RX_BUF_SIZ2");
       else
          buf_siz2 = 2048;
       if (get_plus_arg (CHECK,"VLD0"))
          vld0 = get_plus_arg(NUM,"VLD0");
       else
          vld0 = 1;
       if (get_plus_arg (CHECK,"VLD1"))
          vld1 = get_plus_arg(NUM,"VLD1");
       else
          vld1 = 1;
       if (get_plus_arg (CHECK,"VLD2"))
          vld2 = get_plus_arg(NUM,"VLD2");
       else
          vld2 = 1;

        rbr_config_B_data[63:26]= 0;
        rbr_config_B_data[22:18]= 0;
        rbr_config_B_data[14:10]= 0;
        rbr_config_B_data[6:2]= 0;

        case(blk_size) {
                4: rbr_config_B_data[25:24] = 2'b00;
                8: rbr_config_B_data[25:24] = 2'b01;
               16: rbr_config_B_data[25:24] = 2'b10;
               32: rbr_config_B_data[25:24] = 2'b11;
                    }
                rbr_config_B_data[23]    = vld2; //VLD2
                rbr_config_B_data[17:16] = 2'b00;
        case(buf_siz2) {
               2048: rbr_config_B_data[17:16] = 2'b00;
               4096: rbr_config_B_data[17:16] = 2'b01;
               8192: rbr_config_B_data[17:16] = 2'b10;
              16384: rbr_config_B_data[17:16] = 2'b11;
                    }
                rbr_config_B_data[15] = vld1; //VLD1
                rbr_config_B_data[9:8] = 2'b00;
        case(buf_siz1) {
               1024: rbr_config_B_data[9:8] = 2'b00;
               2048: rbr_config_B_data[9:8] = 2'b01;
               4096: rbr_config_B_data[9:8] = 2'b10;
               8192: rbr_config_B_data[9:8] = 2'b11;
                    }
                rbr_config_B_data[7]  = vld0; //VLD0
        case(buf_siz0) {
                256: rbr_config_B_data[1:0] = 2'b00;
                512: rbr_config_B_data[1:0] = 2'b01;
               1024: rbr_config_B_data[1:0] = 2'b10;
               2048: rbr_config_B_data[1:0] = 2'b11;
                    }

// ###################################################################################################
// ###################################################################################################
// ###################################################################################################
        // One single function to initialize the whole RXDMA channel
        // This function should be called for each RXDMA channel you want to initialize
        desc_ring_length = 16'h1fff;
        compl_ring_len = 16'h2000;
        initial_kick = 16'h00ff;
        rdmc.InitRXDMA(dma_chnl, desc_ring_length, compl_ring_len, rbr_config_B_data, initial_kick);

}