mirror of
https://github.com/Gehstock/Mist_FPGA.git
synced 2026-05-05 07:44:04 +00:00
310 lines
8.4 KiB
VHDL
310 lines
8.4 KiB
VHDL
---------------------------------------------------------------------------------
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-- DE2-35 Top level for Phoenix by Dar (darfpga@aol.fr) (April 2016)
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-- http://darfpga.blogspot.fr
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--
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-- Main features
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-- PS2 keyboard input
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-- wm8731 sound output
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-- NO board SRAM used
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--
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-- sw 0: on/off hdmi-audio
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--
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-- Board switch : ---- todo fixme switches note
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-- 1 - 4 : dip switch
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-- 0-1 : lives 3-6
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-- 3-2 : bonus life 30K-60K
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-- 4 : coin 1-2
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-- 6-5 : unkonwn
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-- 7 : upright-cocktail
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-- 8 -10 : sound_select
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-- 0XX : all mixed (normal)
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-- 100 : sound1 only
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-- 101 : sound2 only
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-- 110 : sound3 only
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-- 111 : melody only
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-- Board key :
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-- 0 : reset
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--
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---------------------------------------------------------------------------------
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library ieee;
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use ieee.std_logic_1164.all;
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use ieee.std_logic_unsigned.ALL;
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use ieee.numeric_std.all;
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entity phoenix_mist is
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port
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(
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CLOCK_27 : in std_logic;
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LED : out std_logic;
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VGA_R : out std_logic_vector(5 downto 0);
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VGA_G : out std_logic_vector(5 downto 0);
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VGA_B : out std_logic_vector(5 downto 0);
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VGA_HS : out std_logic;
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VGA_VS : out std_logic;
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SPI_SCK : in std_logic;
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SPI_DI : in std_logic;
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SPI_DO : out std_logic;
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SPI_SS2 : in std_logic;
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SPI_SS3 : in std_logic;
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CONF_DATA0 : in std_logic;
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AUDIO_L : out std_logic;
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AUDIO_R : out std_logic
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);
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end;
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architecture struct of phoenix_mist is
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signal clk : std_logic;
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signal clk_88m : std_logic;
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signal reset : std_logic;
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signal clock_stable : std_logic;
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signal audio : std_logic_vector(11 downto 0);
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signal video_r, video_g, video_b: std_logic_vector(1 downto 0);
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signal vsync, hsync : std_logic;
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signal dip_switch : std_logic_vector(7 downto 0);-- := (others => '0');
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signal status : std_logic_vector(31 downto 0);
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signal buttons : std_logic_vector(1 downto 0);
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signal scandoubler_disable : std_logic;
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signal ypbpr : std_logic;
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signal ce_pix : std_logic;
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signal scanlines : std_logic_vector(1 downto 0);
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signal hq2x : std_logic;
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signal coin : std_logic;
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signal player_start : std_logic_vector(1 downto 0);
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signal button_left, button_right, button_protect, button_fire: std_logic;
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signal joy0 : std_logic_vector(7 downto 0);
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signal joy1 : std_logic_vector(7 downto 0);
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signal ps2Clk : std_logic;
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signal ps2Data : std_logic;
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signal kbd_joy : std_logic_vector(7 downto 0);
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signal upjoyL : std_logic;
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signal upjoyR : std_logic;
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signal upjoyB : std_logic;
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-- config string used by the io controller to fill the OSD
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constant CONF_STR : string := "PHOENIX;;O4,Screen Direction,Upright,Normal;O67,Scandoubler Fx,None,HQ2x,CRT 25%,CRT 50%;T5,Reset;V,v1.1;";
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function to_slv(s: string) return std_logic_vector is
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constant ss: string(1 to s'length) := s;
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variable rval: std_logic_vector(1 to 8 * s'length);
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variable p: integer;
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variable c: integer;
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begin
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for i in ss'range loop
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p := 8 * i;
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c := character'pos(ss(i));
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rval(p - 7 to p) := std_logic_vector(to_unsigned(c,8));
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end loop;
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return rval;
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end function;
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component mist_io
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generic ( STRLEN : integer := 0 );
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port (
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clk_sys :in std_logic;
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SPI_SCK, CONF_DATA0, SPI_DI :in std_logic;
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SPI_DO : out std_logic;
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conf_str : in std_logic_vector(8*STRLEN-1 downto 0);
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buttons : out std_logic_vector(1 downto 0);
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joystick_0 : out std_logic_vector(7 downto 0);
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joystick_1 : out std_logic_vector(7 downto 0);
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status : out std_logic_vector(31 downto 0);
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scandoubler_disable, ypbpr : out std_logic;
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ps2_kbd_clk : out std_logic;
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ps2_kbd_data : out std_logic
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);
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end component mist_io;
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component video_mixer
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generic ( LINE_LENGTH : integer := 352; HALF_DEPTH : integer := 1 );
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port (
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clk_sys, ce_pix, ce_pix_actual : in std_logic;
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SPI_SCK, SPI_SS3, SPI_DI : in std_logic;
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scanlines : in std_logic_vector(1 downto 0);
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scandoubler_disable, hq2x, ypbpr, ypbpr_full : in std_logic;
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rotate : in std_logic_vector(1 downto 0);
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R, G, B : in std_logic_vector(2 downto 0);
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HSync, VSync, line_start, mono : in std_logic;
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VGA_R,VGA_G, VGA_B : out std_logic_vector(5 downto 0);
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VGA_VS, VGA_HS : out std_logic
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);
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end component video_mixer;
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component keyboard
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PORT(
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clk : in std_logic;
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reset : in std_logic;
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ps2_kbd_clk : in std_logic;
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ps2_kbd_data : in std_logic;
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joystick : out std_logic_vector (7 downto 0)
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);
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end component;
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begin
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-- SWITCH 1: SWITCH 2: NUMBER OF SPACESHIPS:
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-- --------- --------- ---------------------
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-- OFF OFF 6
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-- ON OFF 5
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-- OFF ON 4
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-- ON ON 3
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-- FIRST FREE SECOND FREE
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-- SWITCH 3: SWITCH 4: SHIP SCORE: SHIP SCORE:
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-- --------- --------- ----------- -----------
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-- OFF OFF 6,000 60,000
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-- ON OFF 5,000 50,000
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-- OFF ON 4,000 40,000
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-- ON ON 3,000 30,000
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--Cocktail,Factory,Factory,Factory,Bonus2,Bonus1,Ships2,Ships1
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dip_switch <= "00001111";
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mist_io_inst : mist_io
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generic map (STRLEN => CONF_STR'length)
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port map (
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clk_sys => clk,
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SPI_SCK => SPI_SCK,
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CONF_DATA0 => CONF_DATA0,
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SPI_DI => SPI_DI,
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SPI_DO => SPI_DO,
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conf_str => to_slv(CONF_STR),
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buttons => buttons,
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scandoubler_disable => scandoubler_disable,
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ypbpr => ypbpr,
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joystick_1 => joy1,
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joystick_0 => joy0,
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status => status,
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ps2_kbd_clk => ps2Clk,
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ps2_kbd_data => ps2Data
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);
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--
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-- Audio
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--
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u_dac1 : entity work.dac
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port map(
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clk_i => clk_88m,
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res_n_i => not reset,
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dac_i => audio,
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dac_o => AUDIO_L
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);
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u_dac2 : entity work.dac
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port map(
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clk_i => clk_88m,
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res_n_i => not reset,
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dac_i => audio,
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dac_o => AUDIO_R
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);
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pll: entity work.pll27
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port map(
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inclk0 => CLOCK_27,
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c0 => clk_88m,
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c1 => clk,
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locked => clock_stable
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);
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reset <= status(0) or status(5) or buttons(1) or not clock_stable;
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u_keyboard : keyboard
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port map(
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clk => clk,
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reset => reset,
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ps2_kbd_clk => ps2Clk,
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ps2_kbd_data => ps2Data,
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joystick => kbd_joy
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);
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process(clk_88m)
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variable cnt: integer range 0 to 6000000 := 0;
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begin
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if rising_edge(clk_88m) then
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if status(3 downto 1) /= "000" then
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cnt := 0;
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coin <= status(1);
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player_start <= status(3 downto 2);
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else
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if cnt < 6000000 then
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cnt := cnt + 1;
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else
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coin <= '0';
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player_start <= "00";
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end if;
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end if;
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end if;
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end process;
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upjoyB <= joy0(2) or joy1(2) when status(4) = '0' else joy0(0) or joy1(0);
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upjoyL <= joy0(1) or joy1(1) or kbd_joy(6) when status(4) = '0' else joy0(2) or joy1(2) or kbd_joy(5);
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upjoyR <= joy0(0) or joy1(0) or kbd_joy(7) when status(4) = '0' else joy0(3) or joy1(3) or kbd_joy(4);
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phoenix : entity work.phoenix
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port map
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(
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clk => clk,
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reset => reset,
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ce_pix => ce_pix,
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dip_switch => dip_switch,
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btn_coin => kbd_joy(3) or coin,--ESC
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btn_player_start(0) => kbd_joy(1) or player_start(0),--1
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btn_player_start(1) => kbd_joy(2) or player_start(1),--2
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btn_left => upjoyL,
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btn_right => upjoyR,
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btn_barrier => upjoyB or kbd_joy(2),--TAB
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btn_fire => joy0(4) or joy1(4) or kbd_joy(0),--space
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video_r => video_r,
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video_g => video_g,
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video_b => video_b,
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video_hs => hsync,
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video_vs => vsync,
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audio_select => "000",
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audio => audio
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);
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scanlines(0) <= '1' when status(7 downto 6) = "10" else '0';
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scanlines(1) <= '1' when status(7 downto 6) = "11" else '0';
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hq2x <= '1' when status(7 downto 6) = "01" else '0';
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vmixer : video_mixer
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port map (
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clk_sys => clk_88m,
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ce_pix => ce_pix,
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ce_pix_actual => ce_pix,
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SPI_SCK => SPI_SCK,
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SPI_SS3 => SPI_SS3,
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SPI_DI => SPI_DI,
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rotate => '1' & not status(4),
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scanlines => scanlines,
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scandoubler_disable => scandoubler_disable,
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hq2x => hq2x,
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ypbpr => ypbpr,
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ypbpr_full => '1',
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R => video_r & video_r(1),
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G => video_g & video_g(1),
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B => video_b & video_b(1),
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HSync => hsync,
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VSync => vsync,
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line_start => '0',
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mono => '0',
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VGA_R => VGA_R,
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VGA_G => VGA_G,
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VGA_B => VGA_B,
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VGA_VS => VGA_VS,
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VGA_HS => VGA_HS
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);
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LED <= '1';
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end struct;
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