Revision 295
Added by markw over 10 years ago
| common/a8core/ps2_to_atari5200.vhdl | ||
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ENTITY ps2_to_atari5200 IS
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GENERIC
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(
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ps2_enable : integer := 1;
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direct_enable : integer := 0
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);
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PORT
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(
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CLK : IN STD_LOGIC;
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RESET_N : IN STD_LOGIC;
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PS2_CLK : IN STD_LOGIC;
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PS2_DAT : IN STD_LOGIC;
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PS2_CLK : IN STD_LOGIC := '1';
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PS2_DAT : IN STD_LOGIC := '1';
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INPUT : IN STD_LOGIC_VECTOR(31 downto 0) := (others=>'0');
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KEYBOARD_SCAN : IN STD_LOGIC_VECTOR(5 downto 0);
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KEYBOARD_RESPONSE : OUT STD_LOGIC_VECTOR(1 downto 0);
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| ... | ... | |
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signal ps2_keys_next : std_logic_vector(511 downto 0);
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signal ps2_keys_reg : std_logic_vector(511 downto 0);
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signal ps2_key_event : std_logic;
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signal ps2_key_value : std_logic_vector(7 downto 0);
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signal ps2_key_extended : std_logic;
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signal ps2_key_up : std_logic;
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signal direct_key_event : std_logic;
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signal direct_key_value : std_logic_vector(7 downto 0);
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signal direct_key_extended : std_logic;
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signal direct_key_up : std_logic;
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signal key_event : std_logic;
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signal key_value : std_logic_vector(7 downto 0);
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signal key_extended : std_logic;
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| ... | ... | |
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signal fire_pressed_sel : std_logic;
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BEGIN
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process(clk,reset_n)
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begin
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if (reset_n='0') then
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ps2_keys_reg <= (others=>'0');
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elsif (clk'event and clk='1') then
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ps2_keys_reg <= ps2_keys_next;
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end if;
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end process;
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gen_ps2_on : if ps2_enable=1 generate
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keyboard1: entity work.ps2_keyboard
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PORT MAP
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(
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PS2_CLK => PS2_CLK,
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PS2_DAT => PS2_DAT,
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KEY_EVENT => KEY_EVENT,
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KEY_VALUE => KEY_VALUE,
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KEY_EXTENDED => KEY_EXTENDED,
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KEY_UP => KEY_UP
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KEY_EVENT => PS2_KEY_EVENT,
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KEY_VALUE => PS2_KEY_VALUE,
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KEY_EXTENDED => PS2_KEY_EXTENDED,
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KEY_UP => PS2_KEY_UP
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-- KEY_EVENT : OUT STD_LOGIC; -- high for 1 cycle on new key pressed(or repeated)/released
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-- KEY_VALUE : OUT STD_LOGIC_VECTOR(7 downto 0); -- valid on event, raw scan code
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-- KEY_EXTENDED : OUT STD_LOGIC; -- valid on event, if scan code extended
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-- KEY_UP : OUT STD_LOGIC -- value on event, if key released
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);
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end generate;
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process(clk,reset_n)
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begin
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if (reset_n='0') then
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ps2_keys_reg <= (others=>'0');
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elsif (clk'event and clk='1') then
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ps2_keys_reg <= ps2_keys_next;
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end if;
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end process;
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gen_ps2_off : if ps2_enable=0 generate
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PS2_KEY_EVENT <= '0';
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PS2_KEY_VALUE <= (others=>'0');
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PS2_KEY_EXTENDED <= '0';
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PS2_KEY_UP <= '0';
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end generate;
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-- 1 bit per PS2 key
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gen_direct_on : if direct_enable=1 generate
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direct_key_value <= input(7 downto 0);
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direct_key_extended <= input(12);
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direct_key_up <= not(input(16));
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direct_key_event <= '1';
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end generate;
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gen_direct_off : if direct_enable=0 generate
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DIRECT_KEY_EVENT <= '0';
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DIRECT_KEY_VALUE <= (others=>'0');
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DIRECT_KEY_EXTENDED <= '0';
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DIRECT_KEY_UP <= '0';
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end generate;
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KEY_EVENT <= DIRECT_KEY_EVENT or PS2_KEY_EVENT;
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KEY_VALUE <= PS2_KEY_VALUE when PS2_KEY_EVENT='1' else DIRECT_KEY_VALUE;
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KEY_EXTENDED <= PS2_KEY_EXTENDED when PS2_KEY_EVENT='1' else DIRECT_KEY_EXTENDED;
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KEY_UP <= PS2_KEY_UP when PS2_KEY_EVENT='1' else DIRECT_KEY_UP;
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process(KEY_EVENT, KEY_VALUE, KEY_EXTENDED, KEY_UP, ps2_keys_reg)
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begin
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ps2_keys_next <= ps2_keys_reg;
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| ... | ... | |
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case controller_select is
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when "00" =>
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-- todo change order to match keycode! check with petes test
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atari_keyboard(12)<=ps2_keys_reg(16#05#); --f1
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atari_keyboard(8)<=ps2_keys_reg(16#06#); --f2
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atari_keyboard(4)<=ps2_keys_reg(16#04#); --f3
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atari_keyboard(15)<=ps2_keys_reg(16#16#); --1
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atari_keyboard(14)<=ps2_keys_reg(16#1E#); --2
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atari_keyboard(13)<=ps2_keys_reg(16#26#); --3
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atari_keyboard(11)<=ps2_keys_reg(16#15#); --q
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atari_keyboard(10)<=ps2_keys_reg(16#1D#); --w
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atari_keyboard(9)<=ps2_keys_reg(16#24#); --e
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atari_keyboard(7)<=ps2_keys_reg(16#1c#); --a
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atari_keyboard(6)<=ps2_keys_reg(16#1b#); --s
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atari_keyboard(5)<=ps2_keys_reg(16#23#); --d
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atari_keyboard(3)<=ps2_keys_reg(16#1a#); --z
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atari_keyboard(2)<=ps2_keys_reg(16#22#); --x
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atari_keyboard(1)<=ps2_keys_reg(16#21#); --c
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atari_keyboard(12)<=ps2_keys_reg(16#05#) and not(ps2_keys_reg(16#14#)); --f1
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atari_keyboard(8)<=ps2_keys_reg(16#06#) and not(ps2_keys_reg(16#14#)); --f2
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atari_keyboard(4)<=ps2_keys_reg(16#04#) and not(ps2_keys_reg(16#14#)); --f3
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atari_keyboard(15)<=ps2_keys_reg(16#16#) and not(ps2_keys_reg(16#14#)); --1
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atari_keyboard(14)<=ps2_keys_reg(16#1E#) and not(ps2_keys_reg(16#14#)); --2
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atari_keyboard(13)<=ps2_keys_reg(16#26#) and not(ps2_keys_reg(16#14#)); --3
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atari_keyboard(11)<=ps2_keys_reg(16#15#) and not(ps2_keys_reg(16#14#)); --q
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atari_keyboard(10)<=ps2_keys_reg(16#1D#) and not(ps2_keys_reg(16#14#)); --w
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atari_keyboard(9)<=ps2_keys_reg(16#24#) and not(ps2_keys_reg(16#14#)); --e
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atari_keyboard(7)<=ps2_keys_reg(16#1c#) and not(ps2_keys_reg(16#14#)); --a
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atari_keyboard(6)<=ps2_keys_reg(16#1b#) and not(ps2_keys_reg(16#14#)); --s
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atari_keyboard(5)<=ps2_keys_reg(16#23#) and not(ps2_keys_reg(16#14#)); --d
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atari_keyboard(3)<=ps2_keys_reg(16#1a#) and not(ps2_keys_reg(16#14#)); --z
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atari_keyboard(2)<=ps2_keys_reg(16#22#) and not(ps2_keys_reg(16#14#)); --x
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atari_keyboard(1)<=ps2_keys_reg(16#21#) and not(ps2_keys_reg(16#14#)); --c
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fire_pressed_sel <= fire2(0);
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when "01" =>
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atari_keyboard(12)<=ps2_keys_reg(16#29#);
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atari_keyboard(8)<=ps2_keys_reg(16#29#);
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atari_keyboard(4)<=ps2_keys_reg(16#29#);
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atari_keyboard(15)<=ps2_keys_reg(16#29#);
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atari_keyboard(14)<=ps2_keys_reg(16#29#);
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atari_keyboard(13)<=ps2_keys_reg(16#29#);
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atari_keyboard(11)<=ps2_keys_reg(16#29#);
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atari_keyboard(10)<=ps2_keys_reg(16#29#);
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atari_keyboard(9)<=ps2_keys_reg(16#29#);
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atari_keyboard(7)<=ps2_keys_reg(16#29#);
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atari_keyboard(6)<=ps2_keys_reg(16#29#);
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atari_keyboard(5)<=ps2_keys_reg(16#29#);
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atari_keyboard(3)<=ps2_keys_reg(16#29#);
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atari_keyboard(2)<=ps2_keys_reg(16#29#);
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atari_keyboard(1)<=ps2_keys_reg(16#29#);
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atari_keyboard(12)<=ps2_keys_reg(16#0c#) and not(ps2_keys_reg(16#14#)); -- f4
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atari_keyboard(8)<=ps2_keys_reg(16#03#) and not(ps2_keys_reg(16#14#)); -- f5
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atari_keyboard(4)<=ps2_keys_reg(16#0b#) and not(ps2_keys_reg(16#14#)); -- f6
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atari_keyboard(15)<=ps2_keys_reg(16#25#) and not(ps2_keys_reg(16#14#)); -- 4
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atari_keyboard(14)<=ps2_keys_reg(16#2e#) and not(ps2_keys_reg(16#14#)); -- 5
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atari_keyboard(13)<=ps2_keys_reg(16#36#) and not(ps2_keys_reg(16#14#)); -- 6
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atari_keyboard(11)<=ps2_keys_reg(16#2d#) and not(ps2_keys_reg(16#14#)); -- r
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atari_keyboard(10)<=ps2_keys_reg(16#2c#) and not(ps2_keys_reg(16#14#)); -- t
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atari_keyboard(9)<=ps2_keys_reg(16#35#) and not(ps2_keys_reg(16#14#)); -- y
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atari_keyboard(7)<=ps2_keys_reg(16#2b#) and not(ps2_keys_reg(16#14#)); -- f
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atari_keyboard(6)<=ps2_keys_reg(16#34#) and not(ps2_keys_reg(16#14#)); -- g
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atari_keyboard(5)<=ps2_keys_reg(16#33#) and not(ps2_keys_reg(16#14#)); -- h
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atari_keyboard(3)<=ps2_keys_reg(16#2a#) and not(ps2_keys_reg(16#14#)); -- v
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atari_keyboard(2)<=ps2_keys_reg(16#32#) and not(ps2_keys_reg(16#14#)); -- b
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atari_keyboard(1)<=ps2_keys_reg(16#31#) and not(ps2_keys_reg(16#14#)); -- n
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fire_pressed_sel <= fire2(1);
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when "10" =>
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atari_keyboard(12)<=ps2_keys_reg(16#29#);
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atari_keyboard(8)<=ps2_keys_reg(16#29#);
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atari_keyboard(4)<=ps2_keys_reg(16#29#);
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atari_keyboard(15)<=ps2_keys_reg(16#29#);
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atari_keyboard(14)<=ps2_keys_reg(16#29#);
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atari_keyboard(13)<=ps2_keys_reg(16#29#);
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atari_keyboard(11)<=ps2_keys_reg(16#29#);
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atari_keyboard(10)<=ps2_keys_reg(16#29#);
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atari_keyboard(9)<=ps2_keys_reg(16#29#);
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atari_keyboard(7)<=ps2_keys_reg(16#29#);
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atari_keyboard(6)<=ps2_keys_reg(16#29#);
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atari_keyboard(5)<=ps2_keys_reg(16#29#);
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atari_keyboard(3)<=ps2_keys_reg(16#29#);
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atari_keyboard(2)<=ps2_keys_reg(16#29#);
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atari_keyboard(1)<=ps2_keys_reg(16#29#);
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atari_keyboard(12)<=ps2_keys_reg(16#05#) and ps2_keys_reg(16#14#); --f1
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atari_keyboard(8)<=ps2_keys_reg(16#06#) and ps2_keys_reg(16#14#); --f2
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atari_keyboard(4)<=ps2_keys_reg(16#04#) and ps2_keys_reg(16#14#); --f3
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atari_keyboard(15)<=ps2_keys_reg(16#16#) and ps2_keys_reg(16#14#); --1
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atari_keyboard(14)<=ps2_keys_reg(16#1E#) and ps2_keys_reg(16#14#); --2
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atari_keyboard(13)<=ps2_keys_reg(16#26#) and ps2_keys_reg(16#14#); --3
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atari_keyboard(11)<=ps2_keys_reg(16#15#) and ps2_keys_reg(16#14#); --q
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atari_keyboard(10)<=ps2_keys_reg(16#1D#) and ps2_keys_reg(16#14#); --w
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atari_keyboard(9)<=ps2_keys_reg(16#24#) and ps2_keys_reg(16#14#); --e
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atari_keyboard(7)<=ps2_keys_reg(16#1c#) and ps2_keys_reg(16#14#); --a
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atari_keyboard(6)<=ps2_keys_reg(16#1b#) and ps2_keys_reg(16#14#); --s
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atari_keyboard(5)<=ps2_keys_reg(16#23#) and ps2_keys_reg(16#14#); --d
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atari_keyboard(3)<=ps2_keys_reg(16#1a#) and ps2_keys_reg(16#14#); --z
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atari_keyboard(2)<=ps2_keys_reg(16#22#) and ps2_keys_reg(16#14#); --x
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atari_keyboard(1)<=ps2_keys_reg(16#21#) and ps2_keys_reg(16#14#); --c
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fire_pressed_sel <= fire2(2);
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when "11" =>
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atari_keyboard(12)<=ps2_keys_reg(16#29#);
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atari_keyboard(8)<=ps2_keys_reg(16#29#);
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atari_keyboard(4)<=ps2_keys_reg(16#29#);
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atari_keyboard(15)<=ps2_keys_reg(16#29#);
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atari_keyboard(14)<=ps2_keys_reg(16#29#);
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atari_keyboard(13)<=ps2_keys_reg(16#29#);
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atari_keyboard(11)<=ps2_keys_reg(16#29#);
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atari_keyboard(10)<=ps2_keys_reg(16#29#);
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atari_keyboard(9)<=ps2_keys_reg(16#29#);
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atari_keyboard(7)<=ps2_keys_reg(16#29#);
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atari_keyboard(6)<=ps2_keys_reg(16#29#);
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atari_keyboard(5)<=ps2_keys_reg(16#29#);
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atari_keyboard(3)<=ps2_keys_reg(16#29#);
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atari_keyboard(2)<=ps2_keys_reg(16#29#);
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atari_keyboard(1)<=ps2_keys_reg(16#29#);
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atari_keyboard(12)<=ps2_keys_reg(16#0c#) and ps2_keys_reg(16#14#); -- f4
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atari_keyboard(8)<=ps2_keys_reg(16#03#) and ps2_keys_reg(16#14#); -- f5
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atari_keyboard(4)<=ps2_keys_reg(16#0b#) and ps2_keys_reg(16#14#); -- f6
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atari_keyboard(15)<=ps2_keys_reg(16#25#) and ps2_keys_reg(16#14#); -- 4
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atari_keyboard(14)<=ps2_keys_reg(16#2e#) and ps2_keys_reg(16#14#); -- 5
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atari_keyboard(13)<=ps2_keys_reg(16#36#) and ps2_keys_reg(16#14#); -- 6
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atari_keyboard(11)<=ps2_keys_reg(16#2d#) and ps2_keys_reg(16#14#); -- r
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atari_keyboard(10)<=ps2_keys_reg(16#2c#) and ps2_keys_reg(16#14#); -- t
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atari_keyboard(9)<=ps2_keys_reg(16#35#) and ps2_keys_reg(16#14#); -- y
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atari_keyboard(7)<=ps2_keys_reg(16#2b#) and ps2_keys_reg(16#14#); -- f
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atari_keyboard(6)<=ps2_keys_reg(16#34#) and ps2_keys_reg(16#14#); -- g
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atari_keyboard(5)<=ps2_keys_reg(16#33#) and ps2_keys_reg(16#14#); -- h
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atari_keyboard(3)<=ps2_keys_reg(16#2a#) and ps2_keys_reg(16#14#); -- v
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atari_keyboard(2)<=ps2_keys_reg(16#32#) and ps2_keys_reg(16#14#); -- b
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atari_keyboard(1)<=ps2_keys_reg(16#31#) and ps2_keys_reg(16#14#); -- n
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fire_pressed_sel <= fire2(3);
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when others =>
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end case;
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Also available in: Unified diff
Direct mode for control by usb firmware. Added mapping for 2nd, 3rd and 4th keypads. 2nd is on f4 to f6 etc, 3rd is as 1st but with control. 4th is as 2nd but with control.