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mihad |
//////////////////////////////////////////////////////////////////////
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//// ////
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//// ps2_test_bench.v ////
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//// ////
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//// This file is part of the "ps2" project ////
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//// http://www.opencores.org/cores/ps2/ ////
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//// ////
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//// Author(s): ////
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//// - mihad@opencores.org ////
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//// - Miha Dolenc ////
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//// ////
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//// All additional information is avaliable in the README.txt ////
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//// file. ////
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//// ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//// ////
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//// Copyright (C) 2000 Miha Dolenc, mihad@opencores.org ////
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//// ////
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//// This source file may be used and distributed without ////
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//// restriction provided that this copyright statement is not ////
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//// removed from the file and that any derivative work contains ////
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//// the original copyright notice and the associated disclaimer. ////
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//// ////
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//// This source file is free software; you can redistribute it ////
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//// and/or modify it under the terms of the GNU Lesser General ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any ////
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//// later version. ////
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//// ////
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//// This source is distributed in the hope that it will be ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
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//// PURPOSE. See the GNU Lesser General Public License for more ////
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//// details. ////
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//// ////
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//// You should have received a copy of the GNU Lesser General ////
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//// Public License along with this source; if not, download it ////
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//// from http://www.opencores.org/lgpl.shtml ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//
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// CVS Revision History
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//
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// $Log: not supported by cvs2svn $
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5 |
mihad |
// Revision 1.1.1.1 2002/02/18 16:16:55 mihad
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// Initial project import - working
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2 |
mihad |
//
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5 |
mihad |
//
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2 |
mihad |
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`include "timescale.v"
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`include "ps2_testbench_defines.v"
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`include "ps2_defines.v"
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`define KBD_STATUS_REG 32'h64
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`define KBD_CNTL_REG 32'h64
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`define KBD_DATA_REG 32'h60
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/*
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* controller commands
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*/
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`define KBD_READ_MODE 32'h20
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`define KBD_WRITE_MODE 32'h60
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`define KBD_SELF_TEST 32'hAA
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`define KBD_SELF_TEST2 32'hAB
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`define KBD_CNTL_ENABLE 32'hAE
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/*
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* keyboard commands
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*/
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`define KBD_ENABLE 32'hF4
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`define KBD_DISABLE 32'hF5
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`define KBD_RESET 32'hFF
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/*
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* keyboard replies
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*/
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`define KBD_ACK 32'hFA
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`define KBD_POR 32'hAA
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/*
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* status register bits
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*/
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`define KBD_OBF 32'h01
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`define KBD_IBF 32'h02
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`define KBD_GTO 32'h40
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`define KBD_PERR 32'h80
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/*
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* keyboard controller mode register bits
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*/
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`define KBD_EKI 32'h01
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`define KBD_SYS 32'h04
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`define KBD_DMS 32'h20
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`define KBD_KCC 32'h40
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`define KBD_DISABLE_COMMAND 32'h10
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module ps2_test_bench() ;
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parameter [31:0] MAX_SEQUENCE_LENGTH = 10 ;
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wire kbd_clk_cable ;
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wire kbd_data_cable ;
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pullup(kbd_clk_cable) ;
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pullup(kbd_data_cable) ;
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reg wb_clock ;
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reg wb_reset ;
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wire [7:0] received_char ;
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wire char_valid ;
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`ifdef XILINX
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assign glbl.GSR = wb_reset ;
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`endif
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ps2_keyboard_model i_ps2_keyboard_model
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(
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.kbd_clk_io (kbd_clk_cable),
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.kbd_data_io (kbd_data_cable),
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.last_char_received_o (received_char),
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.char_valid_o (char_valid)
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) ;
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reg ok ;
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reg error ;
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integer watchdog_timer ;
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reg watchdog_reset ;
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reg watchdog_reset_previous ;
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reg [7:0] normal_scancode_set2_mem [0:`PS2_NUM_OF_NORMAL_SCANCODES - 1] ;
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reg [7:0] normal_scancode_set1_mem [0:`PS2_NUM_OF_NORMAL_SCANCODES - 1] ;
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reg [7:0] extended_scancode_set2_mem [0:`PS2_NUM_OF_EXTENDED_SCANCODES - 1] ;
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reg [7:0] extended_scancode_set1_mem [0:`PS2_NUM_OF_EXTENDED_SCANCODES - 1] ;
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`define WB_PERIOD (1/`WB_FREQ)
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initial
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begin
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$readmemh("../../../bench/data/normal_scancodes_set2.hex", normal_scancode_set2_mem) ;
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$readmemh("../../../bench/data/normal_scancodes_set1.hex", normal_scancode_set1_mem) ;
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$readmemh("../../../bench/data/extended_scancodes_set2.hex", extended_scancode_set2_mem) ;
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$readmemh("../../../bench/data/extended_scancodes_set1.hex", extended_scancode_set1_mem) ;
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if ( ((`PS2_TIMER_5USEC_VALUE_PP * `WB_PERIOD) < 5000) || ((`PS2_TIMER_5USEC_VALUE_PP * `WB_PERIOD) > 6000) )
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begin
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$display("Warning! 5us timer max value is not defined correctly regarding to WISHBONE bus clock!") ;
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$stop ;
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end
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if ( ((`PS2_TIMER_60USEC_VALUE_PP * `WB_PERIOD) < 60000) || ((`PS2_TIMER_60USEC_VALUE_PP * `WB_PERIOD) > 61000) )
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begin
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$display("Warning! 60us timer max value is not defined correctly regarding to WISHBONE bus clock!") ;
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$stop ;
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end
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if ( (1 << `PS2_TIMER_5USEC_BITS_PP) < `PS2_TIMER_5USEC_VALUE_PP )
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begin
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$display("Warning! 5us timer max value is not defined correctly regarding to the length in bits of 5us timer!") ;
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$stop ;
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end
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if ( (1 << `PS2_TIMER_60USEC_BITS_PP) < `PS2_TIMER_60USEC_VALUE_PP )
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begin
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$display("Warning! 60us timer max value is not defined correctly regarding to the length in bits of 60us timer!") ;
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$stop ;
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end
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watchdog_timer = 32'h1000_0000 ;
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watchdog_reset = 0 ;
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watchdog_reset_previous = 0 ;
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wb_clock = 1'b1 ;
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wb_reset = 1'b1 ;
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#100 ;
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repeat ( 10 )
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@(posedge wb_clock) ;
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wb_reset <= 1'b0 ;
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@(posedge wb_clock) ;
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#1 initialize_controler ;
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test_scan_code_receiving ;
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test_normal_scancodes ;
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test_extended_scancodes ;
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test_print_screen_and_pause_scancodes ;
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test_keyboard_inhibit ;
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#400 $stop ;
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end
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always
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#(`WB_PERIOD / 2) wb_clock = !wb_clock ;
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wire wb_cyc,
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wb_stb,
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wb_we,
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wb_ack,
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wb_rty,
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wb_int ;
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wire [3:0] wb_sel ;
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wire [31:0] wb_adr, wb_dat_m_s, wb_dat_s_m ;
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ps2_sim_top
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i_ps2_top
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(
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.wb_clk_i (wb_clock),
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.wb_rst_i (wb_reset),
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.wb_cyc_i (wb_cyc),
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.wb_stb_i (wb_stb),
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.wb_we_i (wb_we),
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.wb_sel_i (wb_sel),
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.wb_adr_i (wb_adr),
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.wb_dat_i (wb_dat_m_s),
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.wb_dat_o (wb_dat_s_m),
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.wb_ack_o (wb_ack),
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.wb_int_o (wb_int),
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.ps2_kbd_clk_io (kbd_clk_cable),
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.ps2_kbd_data_io (kbd_data_cable)
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) ;
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WB_MASTER_BEHAVIORAL i_wb_master
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(
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.CLK_I (wb_clock),
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.RST_I (wb_reset),
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.TAG_I (1'b0),
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.TAG_O (),
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.ACK_I (wb_ack),
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.ADR_O (wb_adr),
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.CYC_O (wb_cyc),
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.DAT_I (wb_dat_s_m),
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.DAT_O (wb_dat_m_s),
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.ERR_I (1'b0),
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.RTY_I (1'b0),
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.SEL_O (wb_sel),
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.STB_O (wb_stb),
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.WE_O (wb_we),
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.CAB_O ()
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);
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always@(posedge wb_clock)
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begin
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if ( watchdog_timer === 0 )
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| 249 |
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begin
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| 250 |
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$display("Warning! Simulation watchdog timer has expired!") ;
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watchdog_timer = 32'hFFFF_FFFF ;
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end
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else if ( watchdog_reset !== watchdog_reset_previous )
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watchdog_timer = 32'hFFFF_FFFF ;
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| 255 |
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watchdog_reset_previous = watchdog_reset ;
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| 258 |
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end
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| 260 |
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task initialize_controler ;
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reg [7:0] data ;
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reg status ;
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| 263 |
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begin:main
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| 264 |
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| 265 |
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// simulate keyboard driver's behaviour
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| 266 |
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read_status_reg(data, status) ;
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| 267 |
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if ( status !== 1 )
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| 268 |
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disable main ;
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| 269 |
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| 270 |
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if ( data & `KBD_OBF )
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| 271 |
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read_data_reg(data, status) ;
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| 272 |
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| 273 |
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if ( status !== 1 )
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| 274 |
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disable main ;
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| 275 |
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|
| 276 |
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kbd_write(`KBD_CNTL_REG, `KBD_SELF_TEST, status) ;
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| 277 |
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| 278 |
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if ( status !== 1 )
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| 279 |
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disable main ;
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| 280 |
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| 281 |
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// command sent - wait for commands output to be ready
|
| 282 |
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data = 0 ;
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| 283 |
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while( status && !( data & `KBD_OBF ) )
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| 284 |
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read_status_reg(data, status) ;
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| 285 |
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|
| 286 |
|
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if ( status !== 1 )
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| 287 |
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disable main ;
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| 288 |
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|
| 289 |
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read_data_reg( data, status ) ;
|
| 290 |
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| 291 |
|
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if ( status !== 1 )
|
| 292 |
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disable main ;
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| 293 |
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| 294 |
|
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if ( data !== 8'h55 )
|
| 295 |
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begin
|
| 296 |
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$display("Error! Keyboard controler should respond to self test command with hard coded value 0x55! ") ;
|
| 297 |
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#400 $stop ;
|
| 298 |
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end
|
| 299 |
|
|
|
| 300 |
|
|
// perform self test 2
|
| 301 |
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kbd_write(`KBD_CNTL_REG, `KBD_SELF_TEST2, status) ;
|
| 302 |
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|
| 303 |
|
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if ( status !== 1 )
|
| 304 |
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disable main ;
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| 305 |
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| 306 |
|
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// command sent - wait for commands output to be ready
|
| 307 |
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data = 0 ;
|
| 308 |
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while( status && !( data & `KBD_OBF ) )
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| 309 |
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read_status_reg(data, status) ;
|
| 310 |
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| 311 |
|
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if ( status !== 1 )
|
| 312 |
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disable main ;
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| 313 |
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|
| 314 |
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read_data_reg( data, status ) ;
|
| 315 |
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| 316 |
|
|
if ( status !== 1 )
|
| 317 |
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disable main ;
|
| 318 |
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|
| 319 |
|
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if ( data !== 8'h00 )
|
| 320 |
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begin
|
| 321 |
|
|
$display("Error! Keyboard controler should respond to self test command 2 with hard coded value 0x00! ") ;
|
| 322 |
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#400 $stop ;
|
| 323 |
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end
|
| 324 |
|
|
|
| 325 |
|
|
kbd_write(`KBD_CNTL_REG, `KBD_CNTL_ENABLE, status);
|
| 326 |
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|
| 327 |
|
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if ( status !== 1 )
|
| 328 |
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disable main ;
|
| 329 |
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|
| 330 |
|
|
// send reset command to keyboard
|
| 331 |
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kbd_write(`KBD_DATA_REG, `KBD_RESET, status) ;
|
| 332 |
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| 333 |
|
|
if ( status !== 1 )
|
| 334 |
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disable main ;
|
| 335 |
|
|
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| 336 |
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|
fork
|
| 337 |
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|
begin
|
| 338 |
|
|
// wait for keyboard to respond with acknowledge
|
| 339 |
|
|
data = 0 ;
|
| 340 |
|
|
while( status && !( data & `KBD_OBF ) )
|
| 341 |
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|
read_status_reg(data, status) ;
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| 342 |
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|
|
| 343 |
|
|
if ( status !== 1 )
|
| 344 |
|
|
disable main ;
|
| 345 |
|
|
|
| 346 |
|
|
read_data_reg( data, status ) ;
|
| 347 |
|
|
|
| 348 |
|
|
if ( status !== 1 )
|
| 349 |
|
|
disable main ;
|
| 350 |
|
|
|
| 351 |
|
|
if ( data !== `KBD_ACK )
|
| 352 |
|
|
begin
|
| 353 |
|
|
$display("Error! Expected character from keyboard was 0x%h, actualy received 0x%h!", `KBD_ACK, data ) ;
|
| 354 |
|
|
#400 $stop ;
|
| 355 |
|
|
end
|
| 356 |
|
|
|
| 357 |
|
|
// wait for keyboard to respond with BAT status
|
| 358 |
|
|
data = 0 ;
|
| 359 |
|
|
while( status && !( data & `KBD_OBF ) )
|
| 360 |
|
|
read_status_reg(data, status) ;
|
| 361 |
|
|
|
| 362 |
|
|
if ( status !== 1 )
|
| 363 |
|
|
disable main ;
|
| 364 |
|
|
|
| 365 |
|
|
read_data_reg( data, status ) ;
|
| 366 |
|
|
|
| 367 |
|
|
if ( status !== 1 )
|
| 368 |
|
|
disable main ;
|
| 369 |
|
|
|
| 370 |
|
|
if ( data !== `KBD_POR )
|
| 371 |
|
|
begin
|
| 372 |
|
|
$display("Error! Expected character from keyboard was 0x%h, actualy received 0x%h!", `KBD_POR, data ) ;
|
| 373 |
|
|
#400 $stop ;
|
| 374 |
|
|
end
|
| 375 |
|
|
|
| 376 |
|
|
// send disable command to keyboard
|
| 377 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_DISABLE, status) ;
|
| 378 |
|
|
|
| 379 |
|
|
if ( status !== 1 )
|
| 380 |
|
|
disable main ;
|
| 381 |
|
|
|
| 382 |
|
|
// wait for keyboard to respond with acknowledge
|
| 383 |
|
|
data = 0 ;
|
| 384 |
|
|
while( status && !( data & `KBD_OBF ) )
|
| 385 |
|
|
read_status_reg(data, status) ;
|
| 386 |
|
|
|
| 387 |
|
|
if ( status !== 1 )
|
| 388 |
|
|
disable main ;
|
| 389 |
|
|
|
| 390 |
|
|
read_data_reg( data, status ) ;
|
| 391 |
|
|
|
| 392 |
|
|
if ( status !== 1 )
|
| 393 |
|
|
disable main ;
|
| 394 |
|
|
|
| 395 |
|
|
if ( data !== `KBD_ACK )
|
| 396 |
|
|
begin
|
| 397 |
|
|
$display("Error! Expected character from keyboard was 0x%h, actualy received 0x%h!", `KBD_ACK, data ) ;
|
| 398 |
|
|
#400 $stop ;
|
| 399 |
|
|
end
|
| 400 |
|
|
|
| 401 |
|
|
kbd_write(`KBD_CNTL_REG, `KBD_WRITE_MODE, status);
|
| 402 |
|
|
if ( status !== 1 )
|
| 403 |
|
|
disable main ;
|
| 404 |
|
|
|
| 405 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_EKI|`KBD_SYS|`KBD_DMS|`KBD_KCC, status);
|
| 406 |
|
|
if ( status !== 1 )
|
| 407 |
|
|
disable main ;
|
| 408 |
|
|
|
| 409 |
|
|
// send disable command to keyboard
|
| 410 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_ENABLE, status) ;
|
| 411 |
|
|
|
| 412 |
|
|
if ( status !== 1 )
|
| 413 |
|
|
disable main ;
|
| 414 |
|
|
|
| 415 |
|
|
// wait for keyboard to respond with acknowledge
|
| 416 |
|
|
data = 0 ;
|
| 417 |
|
|
while( status && !( data & `KBD_OBF ) )
|
| 418 |
|
|
read_status_reg(data, status) ;
|
| 419 |
|
|
|
| 420 |
|
|
if ( status !== 1 )
|
| 421 |
|
|
disable main ;
|
| 422 |
|
|
|
| 423 |
|
|
read_data_reg( data, status ) ;
|
| 424 |
|
|
|
| 425 |
|
|
if ( status !== 1 )
|
| 426 |
|
|
disable main ;
|
| 427 |
|
|
|
| 428 |
|
|
if ( data !== `KBD_ACK )
|
| 429 |
|
|
begin
|
| 430 |
|
|
$display("Error! Expected character from keyboard was 0x%h, actualy received 0x%h!", `KBD_ACK, data ) ;
|
| 431 |
|
|
#400 $stop ;
|
| 432 |
|
|
end
|
| 433 |
|
|
|
| 434 |
|
|
// now check if command byte is as expected
|
| 435 |
|
|
kbd_write(`KBD_CNTL_REG, `KBD_READ_MODE, status);
|
| 436 |
|
|
if ( status !== 1 )
|
| 437 |
|
|
disable main ;
|
| 438 |
|
|
|
| 439 |
|
|
data = 0 ;
|
| 440 |
|
|
while( status && !( data & `KBD_OBF ) )
|
| 441 |
|
|
read_status_reg(data, status) ;
|
| 442 |
|
|
|
| 443 |
|
|
if ( status !== 1 )
|
| 444 |
|
|
disable main ;
|
| 445 |
|
|
|
| 446 |
|
|
read_data_reg(data, status) ;
|
| 447 |
|
|
|
| 448 |
|
|
if ( status !== 1 )
|
| 449 |
|
|
disable main ;
|
| 450 |
|
|
|
| 451 |
|
|
if ( (data & (`KBD_EKI|`KBD_SYS|`KBD_DMS|`KBD_KCC)) !== (`KBD_EKI|`KBD_SYS|`KBD_DMS|`KBD_KCC) )
|
| 452 |
|
|
begin
|
| 453 |
|
|
$display("Error! Read command byte returned wrong value!") ;
|
| 454 |
|
|
#400 $stop ;
|
| 455 |
|
|
end
|
| 456 |
|
|
end
|
| 457 |
|
|
begin
|
| 458 |
|
|
@(char_valid) ;
|
| 459 |
|
|
if ( received_char !== `KBD_RESET )
|
| 460 |
|
|
begin
|
| 461 |
|
|
$display("Error! Keyboard received invalid character/command") ;
|
| 462 |
|
|
#400 $stop ;
|
| 463 |
|
|
end
|
| 464 |
|
|
|
| 465 |
|
|
i_ps2_keyboard_model.kbd_send_char
|
| 466 |
|
|
(
|
| 467 |
|
|
`KBD_ACK,
|
| 468 |
|
|
ok,
|
| 469 |
|
|
error
|
| 470 |
|
|
) ;
|
| 471 |
|
|
|
| 472 |
|
|
i_ps2_keyboard_model.kbd_send_char
|
| 473 |
|
|
(
|
| 474 |
|
|
`KBD_POR,
|
| 475 |
|
|
ok,
|
| 476 |
|
|
error
|
| 477 |
|
|
) ;
|
| 478 |
|
|
|
| 479 |
|
|
@(char_valid) ;
|
| 480 |
|
|
if ( received_char !== `KBD_DISABLE )
|
| 481 |
|
|
begin
|
| 482 |
|
|
$display("Error! Keyboard received invalid character/command") ;
|
| 483 |
|
|
#400 $stop ;
|
| 484 |
|
|
end
|
| 485 |
|
|
|
| 486 |
|
|
i_ps2_keyboard_model.kbd_send_char
|
| 487 |
|
|
(
|
| 488 |
|
|
`KBD_ACK,
|
| 489 |
|
|
ok,
|
| 490 |
|
|
error
|
| 491 |
|
|
) ;
|
| 492 |
|
|
|
| 493 |
|
|
@(char_valid) ;
|
| 494 |
|
|
if ( received_char !== `KBD_ENABLE )
|
| 495 |
|
|
begin
|
| 496 |
|
|
$display("Error! Keyboard received invalid character/command") ;
|
| 497 |
|
|
#400 $stop ;
|
| 498 |
|
|
end
|
| 499 |
|
|
|
| 500 |
|
|
i_ps2_keyboard_model.kbd_send_char
|
| 501 |
|
|
(
|
| 502 |
|
|
`KBD_ACK,
|
| 503 |
|
|
ok,
|
| 504 |
|
|
error
|
| 505 |
|
|
) ;
|
| 506 |
|
|
|
| 507 |
|
|
end
|
| 508 |
|
|
join
|
| 509 |
|
|
|
| 510 |
|
|
watchdog_reset = !watchdog_reset ;
|
| 511 |
|
|
|
| 512 |
|
|
end
|
| 513 |
|
|
endtask // initialize_controler
|
| 514 |
|
|
|
| 515 |
|
|
task read_data_reg ;
|
| 516 |
|
|
output [7:0] return_byte_o ;
|
| 517 |
|
|
output ok_o ;
|
| 518 |
|
|
reg `READ_STIM_TYPE read_data ;
|
| 519 |
|
|
reg `READ_RETURN_TYPE read_status ;
|
| 520 |
|
|
reg `WB_TRANSFER_FLAGS flags ;
|
| 521 |
|
|
begin
|
| 522 |
|
|
ok_o = 1 ;
|
| 523 |
|
|
flags`WB_TRANSFER_SIZE = 1 ;
|
| 524 |
|
|
flags`WB_TRANSFER_AUTO_RTY = 0 ;
|
| 525 |
|
|
flags`WB_TRANSFER_CAB = 0 ;
|
| 526 |
|
|
flags`INIT_WAITS = 0 ;
|
| 527 |
|
|
flags`SUBSEQ_WAITS = 0 ;
|
| 528 |
|
|
|
| 529 |
|
|
read_data`READ_ADDRESS = `KBD_DATA_REG ;
|
| 530 |
|
|
read_data`READ_SEL = 4'h1 ;
|
| 531 |
|
|
|
| 532 |
|
|
read_status = 0 ;
|
| 533 |
|
|
|
| 534 |
|
|
i_wb_master.wb_single_read( read_data, flags, read_status ) ;
|
| 535 |
|
|
|
| 536 |
|
|
if ( read_status`CYC_ACK !== 1'b1 )
|
| 537 |
|
|
begin
|
| 538 |
|
|
$display("Error! Keyboard controler didn't acknowledge single read access!") ;
|
| 539 |
|
|
#400 $stop ;
|
| 540 |
|
|
ok_o = 0 ;
|
| 541 |
|
|
end
|
| 542 |
|
|
else
|
| 543 |
|
|
return_byte_o = read_status`READ_DATA ;
|
| 544 |
|
|
|
| 545 |
|
|
end
|
| 546 |
|
|
endtask //read_data_reg
|
| 547 |
|
|
|
| 548 |
|
|
task read_status_reg ;
|
| 549 |
|
|
output [7:0] return_byte_o ;
|
| 550 |
|
|
output ok_o ;
|
| 551 |
|
|
reg `READ_STIM_TYPE read_data ;
|
| 552 |
|
|
reg `READ_RETURN_TYPE read_status ;
|
| 553 |
|
|
reg `WB_TRANSFER_FLAGS flags ;
|
| 554 |
|
|
begin
|
| 555 |
|
|
ok_o = 1 ;
|
| 556 |
|
|
flags`WB_TRANSFER_SIZE = 1 ;
|
| 557 |
|
|
flags`WB_TRANSFER_AUTO_RTY = 0 ;
|
| 558 |
|
|
flags`WB_TRANSFER_CAB = 0 ;
|
| 559 |
|
|
flags`INIT_WAITS = 0 ;
|
| 560 |
|
|
flags`SUBSEQ_WAITS = 0 ;
|
| 561 |
|
|
|
| 562 |
|
|
read_data`READ_ADDRESS = `KBD_STATUS_REG ;
|
| 563 |
|
|
read_data`READ_SEL = 4'h1 ;
|
| 564 |
|
|
|
| 565 |
|
|
read_status = 0 ;
|
| 566 |
|
|
|
| 567 |
|
|
i_wb_master.wb_single_read( read_data, flags, read_status ) ;
|
| 568 |
|
|
|
| 569 |
|
|
if ( read_status`CYC_ACK !== 1'b1 )
|
| 570 |
|
|
begin
|
| 571 |
|
|
$display("Error! Keyboard controler didn't acknowledge single read access!") ;
|
| 572 |
|
|
#400 $stop ;
|
| 573 |
|
|
ok_o = 0 ;
|
| 574 |
|
|
end
|
| 575 |
|
|
else
|
| 576 |
|
|
return_byte_o = read_status`READ_DATA ;
|
| 577 |
|
|
|
| 578 |
|
|
end
|
| 579 |
|
|
endtask // read_status_reg
|
| 580 |
|
|
|
| 581 |
|
|
task kbd_write ;
|
| 582 |
|
|
input [31:0] address_i ;
|
| 583 |
|
|
input [31:0] data_i ;
|
| 584 |
|
|
output ok_o ;
|
| 585 |
|
|
|
| 586 |
|
|
reg `WRITE_STIM_TYPE write_data ;
|
| 587 |
|
|
reg `WRITE_RETURN_TYPE write_status ;
|
| 588 |
|
|
reg `WB_TRANSFER_FLAGS flags ;
|
| 589 |
|
|
reg [7:0] kbd_status ;
|
| 590 |
|
|
begin:main
|
| 591 |
|
|
ok_o = 1 ;
|
| 592 |
|
|
flags`WB_TRANSFER_SIZE = 1 ;
|
| 593 |
|
|
flags`WB_TRANSFER_AUTO_RTY = 0 ;
|
| 594 |
|
|
flags`WB_TRANSFER_CAB = 0 ;
|
| 595 |
|
|
flags`INIT_WAITS = 0 ;
|
| 596 |
|
|
flags`SUBSEQ_WAITS = 0 ;
|
| 597 |
|
|
|
| 598 |
|
|
write_data`WRITE_ADDRESS = address_i ;
|
| 599 |
|
|
write_data`WRITE_DATA = data_i ;
|
| 600 |
|
|
write_data`WRITE_SEL = 4'h1 ;
|
| 601 |
|
|
|
| 602 |
|
|
read_status_reg(kbd_status, ok_o) ;
|
| 603 |
|
|
|
| 604 |
|
|
while( ok_o && ( kbd_status & `KBD_IBF ))
|
| 605 |
|
|
begin
|
| 606 |
|
|
read_status_reg(kbd_status, ok_o) ;
|
| 607 |
|
|
end
|
| 608 |
|
|
|
| 609 |
|
|
if ( ok_o !== 1 )
|
| 610 |
|
|
disable main ;
|
| 611 |
|
|
|
| 612 |
|
|
i_wb_master.wb_single_write( write_data, flags, write_status ) ;
|
| 613 |
|
|
|
| 614 |
|
|
if ( write_status`CYC_ACK !== 1 )
|
| 615 |
|
|
begin
|
| 616 |
|
|
$display("Error! Keyboard controller didn't acknowledge single write access") ;
|
| 617 |
|
|
#400 $stop ;
|
| 618 |
|
|
ok_o = 0 ;
|
| 619 |
|
|
end
|
| 620 |
|
|
end
|
| 621 |
|
|
endtask // kbd_write
|
| 622 |
|
|
|
| 623 |
|
|
task test_scan_code_receiving ;
|
| 624 |
|
|
reg ok_keyboard ;
|
| 625 |
|
|
reg ok_controler ;
|
| 626 |
|
|
reg ok ;
|
| 627 |
|
|
reg [7:0] data ;
|
| 628 |
|
|
reg [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] keyboard_sequence ;
|
| 629 |
|
|
reg [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] controler_sequence ;
|
| 630 |
|
|
begin:main
|
| 631 |
|
|
// prepare character sequence to send from keyboard to controler
|
| 632 |
|
|
// L SHIFT make
|
| 633 |
|
|
keyboard_sequence[7:0] = 8'h12 ;
|
| 634 |
|
|
// A make
|
| 635 |
|
|
keyboard_sequence[15:8] = 8'h1C ;
|
| 636 |
|
|
// A break
|
| 637 |
|
|
keyboard_sequence[23:16] = 8'hF0 ;
|
| 638 |
|
|
keyboard_sequence[31:24] = 8'h1C ;
|
| 639 |
|
|
// L SHIFT break
|
| 640 |
|
|
keyboard_sequence[39:32] = 8'hF0 ;
|
| 641 |
|
|
keyboard_sequence[47:40] = 8'h12 ;
|
| 642 |
|
|
|
| 643 |
|
|
// prepare character sequence as it is received in scan code set 1 through the controler
|
| 644 |
|
|
// L SHIFT make
|
| 645 |
|
|
controler_sequence[7:0] = 8'h2A ;
|
| 646 |
|
|
// A make
|
| 647 |
|
|
controler_sequence[15:8] = 8'h1E ;
|
| 648 |
|
|
// A break
|
| 649 |
|
|
controler_sequence[23:16] = 8'h9E ;
|
| 650 |
|
|
// L SHIFT break
|
| 651 |
|
|
controler_sequence[31:24] = 8'hAA ;
|
| 652 |
|
|
|
| 653 |
|
|
fork
|
| 654 |
|
|
begin
|
| 655 |
|
|
send_sequence( keyboard_sequence, 6, ok_keyboard ) ;
|
| 656 |
|
|
if ( ok_keyboard !== 1 )
|
| 657 |
|
|
disable main ;
|
| 658 |
|
|
end
|
| 659 |
|
|
begin
|
| 660 |
|
|
receive_sequence( controler_sequence, 4, ok_controler ) ;
|
| 661 |
|
|
|
| 662 |
|
|
if ( ok_controler !== 1 )
|
| 663 |
|
|
disable main ;
|
| 664 |
|
|
end
|
| 665 |
|
|
join
|
| 666 |
|
|
|
| 667 |
|
|
// test same thing with translation disabled!
|
| 668 |
|
|
kbd_write(`KBD_CNTL_REG, `KBD_WRITE_MODE, ok);
|
| 669 |
|
|
if ( ok !== 1 )
|
| 670 |
|
|
disable main ;
|
| 671 |
|
|
|
| 672 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_EKI|`KBD_SYS|`KBD_DMS, ok);
|
| 673 |
|
|
if ( ok !== 1 )
|
| 674 |
|
|
disable main ;
|
| 675 |
|
|
|
| 676 |
|
|
// since translation is disabled, controler sequence is the same as keyboard sequence
|
| 677 |
|
|
controler_sequence = keyboard_sequence ;
|
| 678 |
|
|
|
| 679 |
|
|
fork
|
| 680 |
|
|
begin
|
| 681 |
|
|
|
| 682 |
|
|
send_sequence( keyboard_sequence, 6, ok_keyboard ) ;
|
| 683 |
|
|
if ( ok_keyboard !== 1 )
|
| 684 |
|
|
disable main ;
|
| 685 |
|
|
|
| 686 |
|
|
end
|
| 687 |
|
|
begin
|
| 688 |
|
|
receive_sequence( controler_sequence, 6, ok_controler ) ;
|
| 689 |
|
|
if ( ok_controler !== 1 )
|
| 690 |
|
|
disable main ;
|
| 691 |
|
|
end
|
| 692 |
|
|
join
|
| 693 |
|
|
|
| 694 |
|
|
// turn translation on again
|
| 695 |
|
|
kbd_write(`KBD_CNTL_REG, `KBD_WRITE_MODE, ok);
|
| 696 |
|
|
if ( ok !== 1 )
|
| 697 |
|
|
disable main ;
|
| 698 |
|
|
|
| 699 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_EKI|`KBD_SYS|`KBD_DMS|`KBD_KCC, ok);
|
| 700 |
|
|
if ( ok !== 1 )
|
| 701 |
|
|
disable main ;
|
| 702 |
|
|
|
| 703 |
|
|
// test extended character receiving - rctrl + s combination
|
| 704 |
|
|
// prepare sequence to send from keyboard to controler
|
| 705 |
|
|
// R CTRL make
|
| 706 |
|
|
keyboard_sequence[7:0] = 8'hE0 ;
|
| 707 |
|
|
keyboard_sequence[15:8] = 8'h14 ;
|
| 708 |
|
|
// S make
|
| 709 |
|
|
keyboard_sequence[23:16] = 8'h1B ;
|
| 710 |
|
|
// S break
|
| 711 |
|
|
keyboard_sequence[31:24] = 8'hF0 ;
|
| 712 |
|
|
keyboard_sequence[39:32] = 8'h1B ;
|
| 713 |
|
|
// R CTRL break
|
| 714 |
|
|
keyboard_sequence[47:40] = 8'hE0 ;
|
| 715 |
|
|
keyboard_sequence[55:48] = 8'hF0 ;
|
| 716 |
|
|
keyboard_sequence[63:56] = 8'h14 ;
|
| 717 |
|
|
|
| 718 |
|
|
// prepare sequence that should be received from the controler
|
| 719 |
|
|
// R CTRL make
|
| 720 |
|
|
controler_sequence[7:0] = 8'hE0 ;
|
| 721 |
|
|
controler_sequence[15:8] = 8'h1D ;
|
| 722 |
|
|
// S make
|
| 723 |
|
|
controler_sequence[23:16] = 8'h1F ;
|
| 724 |
|
|
// S break
|
| 725 |
|
|
controler_sequence[31:24] = 8'h9F ;
|
| 726 |
|
|
// R CTRL break
|
| 727 |
|
|
controler_sequence[39:32] = 8'hE0 ;
|
| 728 |
|
|
controler_sequence[47:40] = 8'h9D ;
|
| 729 |
|
|
|
| 730 |
|
|
fork
|
| 731 |
|
|
begin
|
| 732 |
|
|
send_sequence( keyboard_sequence, 8, ok_keyboard ) ;
|
| 733 |
|
|
if ( ok_keyboard !== 1 )
|
| 734 |
|
|
disable main ;
|
| 735 |
|
|
end
|
| 736 |
|
|
begin
|
| 737 |
|
|
|
| 738 |
|
|
receive_sequence( controler_sequence, 6, ok_controler ) ;
|
| 739 |
|
|
|
| 740 |
|
|
if ( ok_controler !== 1 )
|
| 741 |
|
|
disable main ;
|
| 742 |
|
|
end
|
| 743 |
|
|
join
|
| 744 |
|
|
|
| 745 |
|
|
// test same thing with translation disabled!
|
| 746 |
|
|
kbd_write(`KBD_CNTL_REG, `KBD_WRITE_MODE, ok);
|
| 747 |
|
|
if ( ok !== 1 )
|
| 748 |
|
|
disable main ;
|
| 749 |
|
|
|
| 750 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_EKI|`KBD_SYS|`KBD_DMS, ok);
|
| 751 |
|
|
if ( ok !== 1 )
|
| 752 |
|
|
disable main ;
|
| 753 |
|
|
|
| 754 |
|
|
// since translation is disabled, controler sequence is the same as keyboard sequence
|
| 755 |
|
|
controler_sequence = keyboard_sequence ;
|
| 756 |
|
|
|
| 757 |
|
|
fork
|
| 758 |
|
|
begin
|
| 759 |
|
|
send_sequence( keyboard_sequence, 8, ok_keyboard ) ;
|
| 760 |
|
|
if ( ok_keyboard !== 1 )
|
| 761 |
|
|
disable main ;
|
| 762 |
|
|
end
|
| 763 |
|
|
begin
|
| 764 |
|
|
|
| 765 |
|
|
receive_sequence( controler_sequence, 8, ok_controler ) ;
|
| 766 |
|
|
|
| 767 |
|
|
if ( ok_controler !== 1 )
|
| 768 |
|
|
disable main ;
|
| 769 |
|
|
end
|
| 770 |
|
|
join
|
| 771 |
|
|
|
| 772 |
|
|
watchdog_reset = !watchdog_reset ;
|
| 773 |
|
|
end
|
| 774 |
|
|
endtask // test_scan_code_receiving
|
| 775 |
|
|
|
| 776 |
|
|
task test_normal_scancodes ;
|
| 777 |
|
|
reg ok ;
|
| 778 |
|
|
reg ok_keyboard ;
|
| 779 |
|
|
reg ok_controler ;
|
| 780 |
|
|
integer i ;
|
| 781 |
|
|
reg [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] keyboard_sequence ;
|
| 782 |
|
|
reg [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] controler_sequence ;
|
| 783 |
|
|
begin:main
|
| 784 |
|
|
// turn translation on
|
| 785 |
|
|
kbd_write(`KBD_CNTL_REG, `KBD_WRITE_MODE, ok);
|
| 786 |
|
|
if ( ok !== 1 )
|
| 787 |
|
|
disable main ;
|
| 788 |
|
|
|
| 789 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_EKI|`KBD_SYS|`KBD_DMS|`KBD_KCC, ok);
|
| 790 |
|
|
if ( ok !== 1 )
|
| 791 |
|
|
disable main ;
|
| 792 |
|
|
|
| 793 |
|
|
for ( i = 0 ; i < `PS2_NUM_OF_NORMAL_SCANCODES ; i = i + 1 )
|
| 794 |
|
|
begin
|
| 795 |
|
|
keyboard_sequence[7:0] = normal_scancode_set2_mem[i] ;
|
| 796 |
|
|
keyboard_sequence[15:8] = 8'hF0 ;
|
| 797 |
|
|
keyboard_sequence[23:16] = normal_scancode_set2_mem[i] ;
|
| 798 |
|
|
|
| 799 |
|
|
controler_sequence[7:0] = normal_scancode_set1_mem[i] ;
|
| 800 |
|
|
controler_sequence[15:8] = normal_scancode_set1_mem[i] | 8'h80 ;
|
| 801 |
|
|
fork
|
| 802 |
|
|
begin
|
| 803 |
|
|
send_sequence( keyboard_sequence, 3, ok_keyboard ) ;
|
| 804 |
|
|
if ( ok_keyboard !== 1 )
|
| 805 |
|
|
disable main ;
|
| 806 |
|
|
end
|
| 807 |
|
|
begin
|
| 808 |
|
|
receive_sequence( controler_sequence, 2, ok_controler ) ;
|
| 809 |
|
|
if ( ok_controler !== 1 )
|
| 810 |
|
|
disable main ;
|
| 811 |
|
|
end
|
| 812 |
|
|
join
|
| 813 |
|
|
end
|
| 814 |
|
|
|
| 815 |
|
|
watchdog_reset = !watchdog_reset ;
|
| 816 |
|
|
|
| 817 |
|
|
end
|
| 818 |
|
|
endtask // test_normal_scancodes
|
| 819 |
|
|
|
| 820 |
|
|
task test_extended_scancodes ;
|
| 821 |
|
|
reg ok ;
|
| 822 |
|
|
reg ok_keyboard ;
|
| 823 |
|
|
reg ok_controler ;
|
| 824 |
|
|
integer i ;
|
| 825 |
|
|
reg [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] keyboard_sequence ;
|
| 826 |
|
|
reg [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] controler_sequence ;
|
| 827 |
|
|
begin:main
|
| 828 |
|
|
// turn translation on
|
| 829 |
|
|
kbd_write(`KBD_CNTL_REG, `KBD_WRITE_MODE, ok);
|
| 830 |
|
|
if ( ok !== 1 )
|
| 831 |
|
|
disable main ;
|
| 832 |
|
|
|
| 833 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_EKI|`KBD_SYS|`KBD_DMS|`KBD_KCC, ok);
|
| 834 |
|
|
if ( ok !== 1 )
|
| 835 |
|
|
disable main ;
|
| 836 |
|
|
|
| 837 |
|
|
for ( i = 0 ; i < `PS2_NUM_OF_EXTENDED_SCANCODES ; i = i + 1 )
|
| 838 |
|
|
begin
|
| 839 |
|
|
keyboard_sequence[7:0] = 8'hE0 ;
|
| 840 |
|
|
keyboard_sequence[15:8] = extended_scancode_set2_mem[i] ;
|
| 841 |
|
|
keyboard_sequence[23:16] = 8'hE0 ;
|
| 842 |
|
|
keyboard_sequence[31:24] = 8'hF0 ;
|
| 843 |
|
|
keyboard_sequence[39:32] = extended_scancode_set2_mem[i] ;
|
| 844 |
|
|
|
| 845 |
|
|
controler_sequence[7:0] = 8'hE0 ;
|
| 846 |
|
|
controler_sequence[15:8] = extended_scancode_set1_mem[i] ;
|
| 847 |
|
|
controler_sequence[23:16] = 8'hE0 ;
|
| 848 |
|
|
controler_sequence[31:24] = extended_scancode_set1_mem[i] | 8'h80 ;
|
| 849 |
|
|
fork
|
| 850 |
|
|
begin
|
| 851 |
|
|
send_sequence( keyboard_sequence, 5, ok_keyboard ) ;
|
| 852 |
|
|
if ( ok_keyboard !== 1 )
|
| 853 |
|
|
disable main ;
|
| 854 |
|
|
end
|
| 855 |
|
|
begin
|
| 856 |
|
|
receive_sequence( controler_sequence, 4, ok_controler ) ;
|
| 857 |
|
|
if ( ok_controler !== 1 )
|
| 858 |
|
|
disable main ;
|
| 859 |
|
|
end
|
| 860 |
|
|
join
|
| 861 |
|
|
end
|
| 862 |
|
|
|
| 863 |
|
|
watchdog_reset = !watchdog_reset ;
|
| 864 |
|
|
|
| 865 |
|
|
end
|
| 866 |
|
|
endtask // test_extended_scancodes
|
| 867 |
|
|
|
| 868 |
|
|
task return_scan_code_on_irq ;
|
| 869 |
|
|
output [7:0] scan_code_o ;
|
| 870 |
|
|
output ok_o ;
|
| 871 |
|
|
reg [7:0] temp_data ;
|
| 872 |
|
|
begin:main
|
| 873 |
|
|
wait ( wb_int === 1 ) ;
|
| 874 |
|
|
read_status_reg( temp_data, ok_o ) ;
|
| 875 |
|
|
|
| 876 |
|
|
if ( ok_o !== 1'b1 )
|
| 877 |
|
|
disable main ;
|
| 878 |
|
|
|
| 879 |
|
|
if ( !( temp_data & `KBD_OBF ) )
|
| 880 |
|
|
begin
|
| 881 |
|
|
$display("Error! Interrupt received from keyboard controler when OBF status not set!") ;
|
| 882 |
|
|
#400 $stop ;
|
| 883 |
|
|
end
|
| 884 |
|
|
|
| 885 |
|
|
read_data_reg( temp_data, ok_o ) ;
|
| 886 |
|
|
|
| 887 |
|
|
if ( ok_o !== 1'b1 )
|
| 888 |
|
|
disable main ;
|
| 889 |
|
|
|
| 890 |
|
|
scan_code_o = temp_data ;
|
| 891 |
|
|
end
|
| 892 |
|
|
endtask // return_scan_code_on_irq
|
| 893 |
|
|
|
| 894 |
|
|
task send_sequence ;
|
| 895 |
|
|
input [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] sequence_i ;
|
| 896 |
|
|
input [31:0] num_of_chars_i ;
|
| 897 |
|
|
output ok_o ;
|
| 898 |
|
|
reg [7:0] current_char ;
|
| 899 |
|
|
integer i ;
|
| 900 |
|
|
reg ok ;
|
| 901 |
|
|
reg error ;
|
| 902 |
|
|
begin:main
|
| 903 |
|
|
|
| 904 |
|
|
error = 0 ;
|
| 905 |
|
|
ok_o = 1 ;
|
| 906 |
|
|
ok = 0 ;
|
| 907 |
|
|
|
| 908 |
|
|
for( i = 0 ; i < num_of_chars_i ; i = i + 1 )
|
| 909 |
|
|
begin
|
| 910 |
|
|
current_char = sequence_i[7:0] ;
|
| 911 |
|
|
|
| 912 |
|
|
sequence_i = sequence_i >> 8 ;
|
| 913 |
|
|
ok = 0 ;
|
| 914 |
|
|
error = 0 ;
|
| 915 |
|
|
while ( (ok !== 1) && (error === 0) )
|
| 916 |
|
|
begin
|
| 917 |
|
|
i_ps2_keyboard_model.kbd_send_char
|
| 918 |
|
|
(
|
| 919 |
|
|
current_char,
|
| 920 |
|
|
ok,
|
| 921 |
|
|
error
|
| 922 |
|
|
) ;
|
| 923 |
|
|
end
|
| 924 |
|
|
|
| 925 |
|
|
if ( error )
|
| 926 |
|
|
begin
|
| 927 |
|
|
$display("Time %t", $time) ;
|
| 928 |
|
|
$display("Keyboard model signaled an error!") ;
|
| 929 |
|
|
ok_o = 0 ;
|
| 930 |
|
|
disable main ;
|
| 931 |
|
|
end
|
| 932 |
|
|
end
|
| 933 |
|
|
end
|
| 934 |
|
|
endtask // send_sequence
|
| 935 |
|
|
|
| 936 |
|
|
task receive_sequence ;
|
| 937 |
|
|
input [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] sequence_i ;
|
| 938 |
|
|
input [31:0] num_of_chars_i ;
|
| 939 |
|
|
output ok_o ;
|
| 940 |
|
|
reg [7:0] current_char ;
|
| 941 |
|
|
reg [7:0] data ;
|
| 942 |
|
|
integer i ;
|
| 943 |
|
|
begin:main
|
| 944 |
|
|
|
| 945 |
|
|
ok_o = 1 ;
|
| 946 |
|
|
|
| 947 |
|
|
for( i = 0 ; i < num_of_chars_i ; i = i + 1 )
|
| 948 |
|
|
begin
|
| 949 |
|
|
current_char = sequence_i[7:0] ;
|
| 950 |
|
|
|
| 951 |
|
|
sequence_i = sequence_i >> 8 ;
|
| 952 |
|
|
|
| 953 |
|
|
return_scan_code_on_irq( data, ok_o ) ;
|
| 954 |
|
|
|
| 955 |
|
|
if ( ok_o !== 1 )
|
| 956 |
|
|
disable main ;
|
| 957 |
|
|
|
| 958 |
|
|
if ( data !== current_char )
|
| 959 |
|
|
begin
|
| 960 |
|
|
$display("Time %t", $time) ;
|
| 961 |
|
|
$display("Error! Character received was wrong!") ;
|
| 962 |
|
|
$display("Expected character: %h, received %h ", current_char, data ) ;
|
| 963 |
|
|
end
|
| 964 |
|
|
end
|
| 965 |
|
|
end
|
| 966 |
|
|
endtask // receive_seqence
|
| 967 |
|
|
|
| 968 |
|
|
task test_keyboard_inhibit ;
|
| 969 |
|
|
reg ok_controler ;
|
| 970 |
|
|
reg ok_keyboard ;
|
| 971 |
|
|
reg error ;
|
| 972 |
|
|
reg [7:0] data ;
|
| 973 |
|
|
begin:main
|
| 974 |
|
|
// first test, if keyboard stays inhibited after character is received, but not read from the controler
|
| 975 |
|
|
i_ps2_keyboard_model.kbd_send_char
|
| 976 |
|
|
(
|
| 977 |
|
|
8'hE0,
|
| 978 |
|
|
ok_keyboard,
|
| 979 |
|
|
error
|
| 980 |
|
|
) ;
|
| 981 |
|
|
|
| 982 |
|
|
if ( error )
|
| 983 |
|
|
begin
|
| 984 |
|
|
$display("Error! Keyboard signaled an error while sending character!") ;
|
| 985 |
|
|
disable main ;
|
| 986 |
|
|
end
|
| 987 |
|
|
|
| 988 |
|
|
if ( !ok_keyboard )
|
| 989 |
|
|
begin
|
| 990 |
|
|
$display("Something is wrong! Keyboard wasn't able to send a character!") ;
|
| 991 |
|
|
disable main ;
|
| 992 |
|
|
end
|
| 993 |
|
|
|
| 994 |
|
|
// wait 5 us to see, if keyboard is inhibited
|
| 995 |
|
|
#5000 ;
|
| 996 |
|
|
|
| 997 |
|
|
// now check, if clock line is low!
|
| 998 |
|
|
if ( kbd_clk_cable !== 0 )
|
| 999 |
|
|
begin
|
| 1000 |
|
|
$display("Error! Keyboard wasn't inhibited when output buffer was filled!") ;
|
| 1001 |
|
|
disable main ;
|
| 1002 |
|
|
end
|
| 1003 |
|
|
|
| 1004 |
|
|
// now read the character from input buffer and check if clock was released
|
| 1005 |
|
|
return_scan_code_on_irq( data, ok_controler ) ;
|
| 1006 |
|
|
if ( ok_controler !== 1'b1 )
|
| 1007 |
|
|
disable main ;
|
| 1008 |
|
|
|
| 1009 |
|
|
if ( data !== 8'hE0 )
|
| 1010 |
|
|
begin
|
| 1011 |
|
|
$display("Time %t", $time) ;
|
| 1012 |
|
|
$display("Error! Character read from controler not as expected!") ;
|
| 1013 |
|
|
end
|
| 1014 |
|
|
|
| 1015 |
|
|
fork
|
| 1016 |
|
|
begin
|
| 1017 |
|
|
repeat(10)
|
| 1018 |
|
|
@(posedge wb_clock) ;
|
| 1019 |
|
|
|
| 1020 |
|
|
if ( kbd_clk_cable !== 1 )
|
| 1021 |
|
|
begin
|
| 1022 |
|
|
$display("Error! Keyboard wasn't released from inhibited state when output buffer was read!") ;
|
| 1023 |
|
|
disable main ;
|
| 1024 |
|
|
end
|
| 1025 |
|
|
end
|
| 1026 |
|
|
begin
|
| 1027 |
|
|
i_ps2_keyboard_model.kbd_send_char
|
| 1028 |
|
|
(
|
| 1029 |
|
|
8'h1C,
|
| 1030 |
|
|
ok_keyboard,
|
| 1031 |
|
|
error
|
| 1032 |
|
|
) ;
|
| 1033 |
|
|
if ( !ok_keyboard )
|
| 1034 |
|
|
begin
|
| 1035 |
|
|
$display("Something is wrong! Keyboard wasn't able to send a character!") ;
|
| 1036 |
|
|
disable main ;
|
| 1037 |
|
|
end
|
| 1038 |
|
|
end
|
| 1039 |
|
|
begin
|
| 1040 |
|
|
return_scan_code_on_irq( data, ok_controler ) ;
|
| 1041 |
|
|
if ( ok_controler !== 1'b1 )
|
| 1042 |
|
|
disable main ;
|
| 1043 |
|
|
|
| 1044 |
|
|
if ( data !== 8'h1E )
|
| 1045 |
|
|
begin
|
| 1046 |
|
|
$display("Time %t", $time) ;
|
| 1047 |
|
|
$display("Error! Character read from controler not as expected!") ;
|
| 1048 |
|
|
end
|
| 1049 |
|
|
end
|
| 1050 |
|
|
join
|
| 1051 |
|
|
|
| 1052 |
|
|
// disable keyboard controler
|
| 1053 |
|
|
kbd_write( `KBD_CNTL_REG, `KBD_WRITE_MODE, ok_controler ) ;
|
| 1054 |
|
|
if ( ok_controler !== 1 )
|
| 1055 |
|
|
disable main ;
|
| 1056 |
|
|
|
| 1057 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_EKI|`KBD_SYS|`KBD_DMS|`KBD_KCC | `KBD_DISABLE_COMMAND, ok_controler);
|
| 1058 |
|
|
|
| 1059 |
|
|
if ( ok_controler !== 1 )
|
| 1060 |
|
|
disable main ;
|
| 1061 |
|
|
|
| 1062 |
|
|
repeat( 5 )
|
| 1063 |
|
|
@(posedge wb_clock) ;
|
| 1064 |
|
|
|
| 1065 |
|
|
// now check, if clock line is low!
|
| 1066 |
|
|
if ( kbd_clk_cable !== 0 )
|
| 1067 |
|
|
begin
|
| 1068 |
|
|
$display("Error! Keyboard wasn't inhibited when keyboard controler was disabled!") ;
|
| 1069 |
|
|
disable main ;
|
| 1070 |
|
|
end
|
| 1071 |
|
|
|
| 1072 |
|
|
// send character and enable keyboard controler at the same time
|
| 1073 |
|
|
fork
|
| 1074 |
|
|
begin
|
| 1075 |
|
|
i_ps2_keyboard_model.kbd_send_char
|
| 1076 |
|
|
(
|
| 1077 |
|
|
8'hE0,
|
| 1078 |
|
|
ok_keyboard,
|
| 1079 |
|
|
error
|
| 1080 |
|
|
) ;
|
| 1081 |
|
|
|
| 1082 |
|
|
if ( !ok_keyboard )
|
| 1083 |
|
|
begin
|
| 1084 |
|
|
$display("Something is wrong! Keyboard wasn't able to send a character!") ;
|
| 1085 |
|
|
disable main ;
|
| 1086 |
|
|
end
|
| 1087 |
|
|
end
|
| 1088 |
|
|
begin
|
| 1089 |
|
|
// enable keyboard controler
|
| 1090 |
|
|
kbd_write( `KBD_CNTL_REG, `KBD_WRITE_MODE, ok_controler ) ;
|
| 1091 |
|
|
if ( ok_controler !== 1 )
|
| 1092 |
|
|
disable main ;
|
| 1093 |
|
|
|
| 1094 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_EKI|`KBD_SYS|`KBD_DMS|`KBD_KCC, ok_controler);
|
| 1095 |
|
|
if ( ok_controler !== 1 )
|
| 1096 |
|
|
disable main ;
|
| 1097 |
|
|
end
|
| 1098 |
|
|
begin
|
| 1099 |
|
|
return_scan_code_on_irq( data, ok_controler ) ;
|
| 1100 |
|
|
if ( ok_controler !== 1'b1 )
|
| 1101 |
|
|
disable main ;
|
| 1102 |
|
|
|
| 1103 |
|
|
if ( data !== 8'hE0 )
|
| 1104 |
|
|
begin
|
| 1105 |
|
|
$display("Time %t", $time) ;
|
| 1106 |
|
|
$display("Error! Character read from controler not as expected!") ;
|
| 1107 |
|
|
end
|
| 1108 |
|
|
end
|
| 1109 |
|
|
join
|
| 1110 |
5 |
mihad |
|
| 1111 |
|
|
// do D2 command, that copies parameter in input buffer to output buffer
|
| 1112 |
|
|
kbd_write( `KBD_CNTL_REG, 32'hD2, ok_controler ) ;
|
| 1113 |
|
|
if ( ok_controler !== 1 )
|
| 1114 |
|
|
disable main ;
|
| 1115 |
|
|
|
| 1116 |
|
|
kbd_write(`KBD_DATA_REG, 32'h5555_5555, ok_controler) ;
|
| 1117 |
|
|
|
| 1118 |
|
|
if ( ok_controler !== 1 )
|
| 1119 |
|
|
disable main ;
|
| 1120 |
|
|
|
| 1121 |
|
|
return_scan_code_on_irq( data, ok_controler ) ;
|
| 1122 |
|
|
if ( ok_controler !== 1 )
|
| 1123 |
|
|
disable main ;
|
| 1124 |
|
|
|
| 1125 |
|
|
if ( data !== 8'h55 )
|
| 1126 |
|
|
begin
|
| 1127 |
|
|
$display("Error! D2 command doesn't work properly") ;
|
| 1128 |
|
|
end
|
| 1129 |
|
|
|
| 1130 |
2 |
mihad |
end
|
| 1131 |
|
|
endtask // test_keyboard_inhibit
|
| 1132 |
|
|
|
| 1133 |
|
|
task test_print_screen_and_pause_scancodes ;
|
| 1134 |
|
|
reg ok ;
|
| 1135 |
|
|
reg ok_keyboard ;
|
| 1136 |
|
|
reg ok_controler ;
|
| 1137 |
|
|
integer i ;
|
| 1138 |
|
|
reg [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] keyboard_sequence ;
|
| 1139 |
|
|
reg [(MAX_SEQUENCE_LENGTH*8 - 1) : 0] controler_sequence ;
|
| 1140 |
|
|
begin:main
|
| 1141 |
|
|
// turn translation on
|
| 1142 |
|
|
kbd_write(`KBD_CNTL_REG, `KBD_WRITE_MODE, ok);
|
| 1143 |
|
|
if ( ok !== 1 )
|
| 1144 |
|
|
disable main ;
|
| 1145 |
|
|
|
| 1146 |
|
|
kbd_write(`KBD_DATA_REG, `KBD_EKI|`KBD_SYS|`KBD_DMS|`KBD_KCC, ok);
|
| 1147 |
|
|
if ( ok !== 1 )
|
| 1148 |
|
|
disable main ;
|
| 1149 |
|
|
|
| 1150 |
|
|
// prepare character sequence to send from keyboard to controler - pause
|
| 1151 |
|
|
keyboard_sequence[7:0] = 8'hE1 ;
|
| 1152 |
|
|
keyboard_sequence[15:8] = 8'h14 ;
|
| 1153 |
|
|
keyboard_sequence[23:16] = 8'h77 ;
|
| 1154 |
|
|
keyboard_sequence[31:24] = 8'hE1 ;
|
| 1155 |
|
|
keyboard_sequence[39:32] = 8'hF0 ;
|
| 1156 |
|
|
keyboard_sequence[47:40] = 8'h14 ;
|
| 1157 |
|
|
keyboard_sequence[55:48] = 8'hF0 ;
|
| 1158 |
|
|
keyboard_sequence[63:56] = 8'h77 ;
|
| 1159 |
|
|
|
| 1160 |
|
|
// prepare character sequence as it is received in scan code set 1 through the controler
|
| 1161 |
|
|
controler_sequence[7:0] = 8'hE1 ;
|
| 1162 |
|
|
controler_sequence[15:8] = 8'h1D ;
|
| 1163 |
|
|
controler_sequence[23:16] = 8'h45 ;
|
| 1164 |
|
|
controler_sequence[31:24] = 8'hE1 ;
|
| 1165 |
|
|
controler_sequence[39:32] = 8'h9D ;
|
| 1166 |
|
|
controler_sequence[47:40] = 8'hC5 ;
|
| 1167 |
|
|
|
| 1168 |
|
|
fork
|
| 1169 |
|
|
begin
|
| 1170 |
|
|
send_sequence( keyboard_sequence, 8, ok_keyboard ) ;
|
| 1171 |
|
|
if ( ok_keyboard !== 1 )
|
| 1172 |
|
|
disable main ;
|
| 1173 |
|
|
end
|
| 1174 |
|
|
begin
|
| 1175 |
|
|
receive_sequence( controler_sequence, 6, ok_controler ) ;
|
| 1176 |
|
|
if ( ok_controler !== 1 )
|
| 1177 |
|
|
disable main ;
|
| 1178 |
|
|
end
|
| 1179 |
|
|
join
|
| 1180 |
|
|
|
| 1181 |
|
|
// prepare character sequence to send from keyboard to controler - make print screen
|
| 1182 |
|
|
keyboard_sequence[7:0] = 8'hE0 ;
|
| 1183 |
|
|
keyboard_sequence[15:8] = 8'h12 ;
|
| 1184 |
|
|
keyboard_sequence[23:16] = 8'hE0 ;
|
| 1185 |
|
|
keyboard_sequence[31:24] = 8'h7C ;
|
| 1186 |
|
|
|
| 1187 |
|
|
// prepare character sequence as it is received in scan code set 1 through the controler
|
| 1188 |
|
|
controler_sequence[7:0] = 8'hE0 ;
|
| 1189 |
|
|
controler_sequence[15:8] = 8'h2A ;
|
| 1190 |
|
|
controler_sequence[23:16] = 8'hE0 ;
|
| 1191 |
|
|
controler_sequence[31:24] = 8'h37 ;
|
| 1192 |
|
|
|
| 1193 |
|
|
fork
|
| 1194 |
|
|
begin
|
| 1195 |
|
|
send_sequence( keyboard_sequence, 4, ok_keyboard ) ;
|
| 1196 |
|
|
if ( ok_keyboard !== 1 )
|
| 1197 |
|
|
disable main ;
|
| 1198 |
|
|
end
|
| 1199 |
|
|
begin
|
| 1200 |
|
|
receive_sequence( controler_sequence, 4, ok_controler ) ;
|
| 1201 |
|
|
if ( ok_controler !== 1 )
|
| 1202 |
|
|
disable main ;
|
| 1203 |
|
|
end
|
| 1204 |
|
|
join
|
| 1205 |
|
|
|
| 1206 |
|
|
// prepare character sequence to send from keyboard to controler - break print screen
|
| 1207 |
|
|
keyboard_sequence[7:0] = 8'hE0 ;
|
| 1208 |
|
|
keyboard_sequence[15:8] = 8'hF0 ;
|
| 1209 |
|
|
keyboard_sequence[23:16] = 8'h7C ;
|
| 1210 |
|
|
keyboard_sequence[31:24] = 8'hE0 ;
|
| 1211 |
|
|
keyboard_sequence[39:32] = 8'hF0 ;
|
| 1212 |
|
|
keyboard_sequence[47:40] = 8'h12 ;
|
| 1213 |
|
|
|
| 1214 |
|
|
// prepare character sequence as it is received in scan code set 1 through the controler
|
| 1215 |
|
|
controler_sequence[7:0] = 8'hE0 ;
|
| 1216 |
|
|
controler_sequence[15:8] = 8'hB7 ;
|
| 1217 |
|
|
controler_sequence[23:16] = 8'hE0 ;
|
| 1218 |
|
|
controler_sequence[31:24] = 8'hAA ;
|
| 1219 |
|
|
|
| 1220 |
|
|
fork
|
| 1221 |
|
|
begin
|
| 1222 |
|
|
send_sequence( keyboard_sequence, 6, ok_keyboard ) ;
|
| 1223 |
|
|
if ( ok_keyboard !== 1 )
|
| 1224 |
|
|
disable main ;
|
| 1225 |
|
|
end
|
| 1226 |
|
|
begin
|
| 1227 |
|
|
receive_sequence( controler_sequence, 4, ok_controler ) ;
|
| 1228 |
|
|
if ( ok_controler !== 1 )
|
| 1229 |
|
|
disable main ;
|
| 1230 |
|
|
end
|
| 1231 |
|
|
join
|
| 1232 |
|
|
end
|
| 1233 |
|
|
endtask // test_print_screen_and_pause_scancodes
|
| 1234 |
|
|
|
| 1235 |
|
|
endmodule // ps2_test_bench
|
