-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
--
|
--
|
-- GCpad controller core
|
-- GCpad controller core
|
--
|
--
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-- $Id: gcpad_basic.vhd,v 1.5 2004-10-09 22:18:35 arniml Exp $
|
-- $Id: gcpad_basic.vhd 41 2009-04-01 19:58:04Z arniml $
|
--
|
--
|
-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
|
-- Copyright (c) 2004, Arnim Laeuger (arniml@opencores.org)
|
--
|
--
|
-- All rights reserved
|
-- All rights reserved
|
--
|
--
|
-- Redistribution and use in source and synthezised forms, with or without
|
-- Redistribution and use in source and synthezised forms, with or without
|
-- modification, are permitted provided that the following conditions are met:
|
-- modification, are permitted provided that the following conditions are met:
|
--
|
--
|
-- Redistributions of source code must retain the above copyright notice,
|
-- Redistributions of source code must retain the above copyright notice,
|
-- this list of conditions and the following disclaimer.
|
-- this list of conditions and the following disclaimer.
|
--
|
--
|
-- Redistributions in synthesized form must reproduce the above copyright
|
-- Redistributions in synthesized form must reproduce the above copyright
|
-- notice, this list of conditions and the following disclaimer in the
|
-- notice, this list of conditions and the following disclaimer in the
|
-- documentation and/or other materials provided with the distribution.
|
-- documentation and/or other materials provided with the distribution.
|
--
|
--
|
-- Neither the name of the author nor the names of other contributors may
|
-- Neither the name of the author nor the names of other contributors may
|
-- be used to endorse or promote products derived from this software without
|
-- be used to endorse or promote products derived from this software without
|
-- specific prior written permission.
|
-- specific prior written permission.
|
--
|
--
|
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
-- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
|
-- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
|
-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
-- POSSIBILITY OF SUCH DAMAGE.
|
-- POSSIBILITY OF SUCH DAMAGE.
|
--
|
--
|
-- Please report bugs to the author, but before you do so, please
|
-- Please report bugs to the author, but before you do so, please
|
-- make sure that this is not a derivative work and that
|
-- make sure that this is not a derivative work and that
|
-- you have the latest version of this file.
|
-- you have the latest version of this file.
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--
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--
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-- The latest version of this file can be found at:
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-- The latest version of this file can be found at:
|
-- http://www.opencores.org/cvsweb.shtml/gamepads/
|
-- http://www.opencores.org/cvsweb.shtml/gamepads/
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--
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--
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-- The project homepage is located at:
|
-- The project homepage is located at:
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-- http://www.opencores.org/projects.cgi/web/gamepads/overview
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-- http://www.opencores.org/projects.cgi/web/gamepads/overview
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--
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--
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-------------------------------------------------------------------------------
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-------------------------------------------------------------------------------
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|
|
library ieee;
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library ieee;
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use ieee.std_logic_1164.all;
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use ieee.std_logic_1164.all;
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|
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entity gcpad_basic is
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entity gcpad_basic is
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|
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generic (
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generic (
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-- active level of reset_i
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-- active level of reset_i
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reset_level_g : integer := 0;
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reset_level_g : integer := 0;
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-- number of clk_i periods during 1us
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-- number of clk_i periods during 1us
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clocks_per_1us_g : integer := 2
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clocks_per_1us_g : integer := 2
|
);
|
);
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port (
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port (
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-- System Interface -------------------------------------------------------
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-- System Interface -------------------------------------------------------
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clk_i : in std_logic;
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clk_i : in std_logic;
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reset_i : in std_logic;
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reset_i : in std_logic;
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pad_request_i : in std_logic;
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pad_request_i : in std_logic;
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pad_avail_o : out std_logic;
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pad_avail_o : out std_logic;
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-- Gamepad Interface ------------------------------------------------------
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-- Gamepad Interface ------------------------------------------------------
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pad_data_io : inout std_logic;
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pad_data_io : inout std_logic;
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-- Buttons Interface ------------------------------------------------------
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-- Buttons Interface ------------------------------------------------------
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but_a_o : out std_logic;
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but_a_o : out std_logic;
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but_b_o : out std_logic;
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but_b_o : out std_logic;
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but_x_o : out std_logic;
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but_x_o : out std_logic;
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but_y_o : out std_logic;
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but_y_o : out std_logic;
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but_z_o : out std_logic;
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but_z_o : out std_logic;
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but_start_o : out std_logic;
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but_start_o : out std_logic;
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but_tl_o : out std_logic;
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but_tl_o : out std_logic;
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but_tr_o : out std_logic;
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but_tr_o : out std_logic;
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but_left_o : out std_logic;
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but_left_o : out std_logic;
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but_right_o : out std_logic;
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but_right_o : out std_logic;
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but_up_o : out std_logic;
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but_up_o : out std_logic;
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but_down_o : out std_logic;
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but_down_o : out std_logic;
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ana_joy_x_o : out std_logic_vector(7 downto 0);
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ana_joy_x_o : out std_logic_vector(7 downto 0);
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ana_joy_y_o : out std_logic_vector(7 downto 0);
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ana_joy_y_o : out std_logic_vector(7 downto 0);
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ana_c_x_o : out std_logic_vector(7 downto 0);
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ana_c_x_o : out std_logic_vector(7 downto 0);
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ana_c_y_o : out std_logic_vector(7 downto 0);
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ana_c_y_o : out std_logic_vector(7 downto 0);
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ana_l_o : out std_logic_vector(7 downto 0);
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ana_l_o : out std_logic_vector(7 downto 0);
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ana_r_o : out std_logic_vector(7 downto 0)
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ana_r_o : out std_logic_vector(7 downto 0)
|
);
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);
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|
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end gcpad_basic;
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end gcpad_basic;
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|
|
|
|
use work.gcpad_pack.all;
|
use work.gcpad_pack.all;
|
|
|
architecture struct of gcpad_basic is
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architecture struct of gcpad_basic is
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|
|
component gcpad_ctrl
|
component gcpad_ctrl
|
generic (
|
generic (
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reset_level_g : integer := 0
|
reset_level_g : integer := 0
|
);
|
);
|
port (
|
port (
|
clk_i : in std_logic;
|
clk_i : in std_logic;
|
reset_i : in std_logic;
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reset_i : in std_logic;
|
pad_request_i : in std_logic;
|
pad_request_i : in std_logic;
|
pad_avail_o : out std_logic;
|
pad_avail_o : out std_logic;
|
rx_timeout_o : out std_logic;
|
rx_timeout_o : out std_logic;
|
tx_start_o : out boolean;
|
tx_start_o : out boolean;
|
tx_finished_i : in boolean;
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tx_finished_i : in boolean;
|
rx_en_o : out boolean;
|
rx_en_o : out boolean;
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rx_done_i : in boolean;
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rx_done_i : in boolean;
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rx_data_ok_i : in boolean
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rx_data_ok_i : in boolean
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);
|
);
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end component;
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end component;
|
|
|
component gcpad_tx
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component gcpad_tx
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generic (
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generic (
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reset_level_g : natural := 0;
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reset_level_g : natural := 0;
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clocks_per_1us_g : natural := 2
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clocks_per_1us_g : natural := 2
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);
|
);
|
port (
|
port (
|
clk_i : in std_logic;
|
clk_i : in std_logic;
|
reset_i : in std_logic;
|
reset_i : in std_logic;
|
pad_data_o : out std_logic;
|
pad_data_o : out std_logic;
|
tx_start_i : in boolean;
|
tx_start_i : in boolean;
|
tx_finished_o : out boolean;
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tx_finished_o : out boolean;
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tx_size_i : in std_logic_vector( 1 downto 0);
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tx_size_i : in std_logic_vector( 1 downto 0);
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tx_command_i : in std_logic_vector(23 downto 0)
|
tx_command_i : in std_logic_vector(23 downto 0)
|
);
|
);
|
end component;
|
end component;
|
|
|
component gcpad_rx
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component gcpad_rx
|
generic (
|
generic (
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reset_level_g : integer := 0;
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reset_level_g : integer := 0;
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clocks_per_1us_g : integer := 2
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clocks_per_1us_g : integer := 2
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);
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);
|
port (
|
port (
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clk_i : in std_logic;
|
clk_i : in std_logic;
|
reset_i : in std_logic;
|
reset_i : in std_logic;
|
rx_en_i : in boolean;
|
rx_en_i : in boolean;
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rx_done_o : out boolean;
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rx_done_o : out boolean;
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rx_data_ok_o : out boolean;
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rx_data_ok_o : out boolean;
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rx_size_i : in std_logic_vector(3 downto 0);
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rx_size_i : in std_logic_vector(3 downto 0);
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pad_data_i : in std_logic;
|
pad_data_i : in std_logic;
|
rx_data_o : out buttons_t
|
rx_data_o : out buttons_t
|
);
|
);
|
end component;
|
end component;
|
|
|
|
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
-- constants for standard status polling
|
-- constants for standard status polling
|
constant rx_size_c : std_logic_vector( 3 downto 0) := "1000";
|
constant rx_size_c : std_logic_vector( 3 downto 0) := "1000";
|
signal rx_size_s : std_logic_vector( 3 downto 0);
|
signal rx_size_s : std_logic_vector( 3 downto 0);
|
--
|
--
|
constant tx_size_c : std_logic_vector( 1 downto 0) := "11";
|
constant tx_size_c : std_logic_vector( 1 downto 0) := "11";
|
signal tx_size_s : std_logic_vector( 1 downto 0);
|
signal tx_size_s : std_logic_vector( 1 downto 0);
|
--
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--
|
constant tx_command_c : std_logic_vector(23 downto 0) := "010000000000001100000010";
|
constant tx_command_c : std_logic_vector(23 downto 0) := "010000000000001100000010";
|
signal tx_command_s : std_logic_vector(23 downto 0);
|
signal tx_command_s : std_logic_vector(23 downto 0);
|
--
|
--
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
|
|
signal pad_data_tx_s : std_logic;
|
signal pad_data_tx_s : std_logic;
|
|
|
signal tx_start_s : boolean;
|
signal tx_start_s : boolean;
|
signal tx_finished_s : boolean;
|
signal tx_finished_s : boolean;
|
|
|
signal rx_en_s,
|
signal rx_en_s,
|
rx_done_s,
|
rx_done_s,
|
rx_data_ok_s : boolean;
|
rx_data_ok_s : boolean;
|
|
|
signal rx_data_s : buttons_t;
|
signal rx_data_s : buttons_t;
|
|
|
begin
|
begin
|
|
|
rx_size_s <= rx_size_c;
|
rx_size_s <= rx_size_c;
|
tx_size_s <= tx_size_c;
|
tx_size_s <= tx_size_c;
|
tx_command_s <= tx_command_c;
|
tx_command_s <= tx_command_c;
|
|
|
ctrl_b : gcpad_ctrl
|
ctrl_b : gcpad_ctrl
|
generic map (
|
generic map (
|
reset_level_g => reset_level_g
|
reset_level_g => reset_level_g
|
)
|
)
|
port map (
|
port map (
|
clk_i => clk_i,
|
clk_i => clk_i,
|
reset_i => reset_i,
|
reset_i => reset_i,
|
pad_request_i => pad_request_i,
|
pad_request_i => pad_request_i,
|
pad_avail_o => pad_avail_o,
|
pad_avail_o => pad_avail_o,
|
rx_timeout_o => open,
|
rx_timeout_o => open,
|
tx_start_o => tx_start_s,
|
tx_start_o => tx_start_s,
|
tx_finished_i => tx_finished_s,
|
tx_finished_i => tx_finished_s,
|
rx_en_o => rx_en_s,
|
rx_en_o => rx_en_s,
|
rx_done_i => rx_done_s,
|
rx_done_i => rx_done_s,
|
rx_data_ok_i => rx_data_ok_s
|
rx_data_ok_i => rx_data_ok_s
|
);
|
);
|
|
|
tx_b : gcpad_tx
|
tx_b : gcpad_tx
|
generic map (
|
generic map (
|
reset_level_g => reset_level_g,
|
reset_level_g => reset_level_g,
|
clocks_per_1us_g => clocks_per_1us_g
|
clocks_per_1us_g => clocks_per_1us_g
|
)
|
)
|
port map (
|
port map (
|
clk_i => clk_i,
|
clk_i => clk_i,
|
reset_i => reset_i,
|
reset_i => reset_i,
|
pad_data_o => pad_data_tx_s,
|
pad_data_o => pad_data_tx_s,
|
tx_start_i => tx_start_s,
|
tx_start_i => tx_start_s,
|
tx_finished_o => tx_finished_s,
|
tx_finished_o => tx_finished_s,
|
tx_size_i => tx_size_s,
|
tx_size_i => tx_size_s,
|
tx_command_i => tx_command_s
|
tx_command_i => tx_command_s
|
);
|
);
|
|
|
rx_b : gcpad_rx
|
rx_b : gcpad_rx
|
generic map (
|
generic map (
|
reset_level_g => reset_level_g,
|
reset_level_g => reset_level_g,
|
clocks_per_1us_g => clocks_per_1us_g
|
clocks_per_1us_g => clocks_per_1us_g
|
)
|
)
|
port map (
|
port map (
|
clk_i => clk_i,
|
clk_i => clk_i,
|
reset_i => reset_i,
|
reset_i => reset_i,
|
rx_en_i => rx_en_s,
|
rx_en_i => rx_en_s,
|
rx_done_o => rx_done_s,
|
rx_done_o => rx_done_s,
|
rx_data_ok_o => rx_data_ok_s,
|
rx_data_ok_o => rx_data_ok_s,
|
rx_size_i => rx_size_s,
|
rx_size_i => rx_size_s,
|
pad_data_i => pad_data_io,
|
pad_data_i => pad_data_io,
|
rx_data_o => rx_data_s
|
rx_data_o => rx_data_s
|
);
|
);
|
|
|
|
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
-- Open collector driver to pad data
|
-- Open collector driver to pad data
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
pad_data_io <= '0'
|
pad_data_io <= '0'
|
when pad_data_tx_s = '0' else
|
when pad_data_tx_s = '0' else
|
'Z';
|
'Z';
|
|
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
-- Output mapping
|
-- Output mapping
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
but_a_o <= rx_data_s(pos_a_c);
|
but_a_o <= rx_data_s(pos_a_c);
|
but_b_o <= rx_data_s(pos_b_c);
|
but_b_o <= rx_data_s(pos_b_c);
|
but_x_o <= rx_data_s(pos_x_c);
|
but_x_o <= rx_data_s(pos_x_c);
|
but_y_o <= rx_data_s(pos_y_c);
|
but_y_o <= rx_data_s(pos_y_c);
|
but_z_o <= rx_data_s(pos_z_c);
|
but_z_o <= rx_data_s(pos_z_c);
|
but_start_o <= rx_data_s(pos_start_c);
|
but_start_o <= rx_data_s(pos_start_c);
|
but_tl_o <= rx_data_s(pos_tl_c);
|
but_tl_o <= rx_data_s(pos_tl_c);
|
but_tr_o <= rx_data_s(pos_tr_c);
|
but_tr_o <= rx_data_s(pos_tr_c);
|
but_left_o <= rx_data_s(pos_left_c);
|
but_left_o <= rx_data_s(pos_left_c);
|
but_right_o <= rx_data_s(pos_right_c);
|
but_right_o <= rx_data_s(pos_right_c);
|
but_up_o <= rx_data_s(pos_up_c);
|
but_up_o <= rx_data_s(pos_up_c);
|
but_down_o <= rx_data_s(pos_down_c);
|
but_down_o <= rx_data_s(pos_down_c);
|
ana_joy_x_o <= rx_data_s(joy_x_high_c downto joy_x_low_c);
|
ana_joy_x_o <= rx_data_s(joy_x_high_c downto joy_x_low_c);
|
ana_joy_y_o <= rx_data_s(joy_y_high_c downto joy_y_low_c);
|
ana_joy_y_o <= rx_data_s(joy_y_high_c downto joy_y_low_c);
|
ana_c_x_o <= rx_data_s(c_x_high_c downto c_x_low_c);
|
ana_c_x_o <= rx_data_s(c_x_high_c downto c_x_low_c);
|
ana_c_y_o <= rx_data_s(c_y_high_c downto c_y_low_c);
|
ana_c_y_o <= rx_data_s(c_y_high_c downto c_y_low_c);
|
ana_l_o <= rx_data_s(l_high_c downto l_low_c);
|
ana_l_o <= rx_data_s(l_high_c downto l_low_c);
|
ana_r_o <= rx_data_s(r_high_c downto r_low_c);
|
ana_r_o <= rx_data_s(r_high_c downto r_low_c);
|
|
|
end struct;
|
end struct;
|
|
|
|
|
-------------------------------------------------------------------------------
|
|
-- File History:
|
|
--
|
|
-- $Log: not supported by cvs2svn $
|
|
-- Revision 1.4 2004/10/09 17:03:43 arniml
|
|
-- enhance handshaking between gcpad_rx and gcpad_ctrl
|
|
--
|
|
-- Revision 1.3 2004/10/09 00:33:55 arniml
|
|
-- shift rx_data to button assignment to toplevel
|
|
--
|
|
-- Revision 1.2 2004/10/08 20:51:59 arniml
|
|
-- turn rx and tx size into bytes instead of bits
|
|
--
|
|
-- Revision 1.1 2004/10/07 21:23:10 arniml
|
|
-- initial check-in
|
|
--
|
|
-------------------------------------------------------------------------------
|
|
|
|
No newline at end of file
|
No newline at end of file
|