---------------------------------------------
-- SPINNING DISPLAY
-- this is the top level component for all display functions

-- INPUTS: from keypad, temp sensor, clock from PLL
-- OUTPUTS: LED display vector

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_arith.all;
use ieee.std_logic_unsigned.all;


entity spinning_display is
	generic (numleds : positive := 5);
	port (  slow_clock : in std_logic;
			fast_clock : in std_logic;
			displayT,displayB : out std_logic_vector (numleds-1 downto 0);
			hrbutton, minbutton, motor_reset : in std_logic
		 );	
end spinning_display;

architecture blocks of spinning_display is

--declare components-------------------------
component complete_time is
	port( clock: in std_logic;
		  to_lookup: out std_logic_vector(3 downto 0);
			digit_count : out std_logic_vector(2 downto 0);
			hrbutton, minbutton: in std_logic);
		 
end component complete_time;
----------------------
component LookUpTable is

generic(incounterwidth: positive:=4);

 port( num_from_counter: in std_logic_vector(3 downto 0);
	    clock,reset: in std_logic;
		disp_value: out std_logic_vector(14 downto 0)
);
end component LookupTable;
-------------------------
component OutputBuffer is 
	generic (
		width 	   : positive := 20;
		char_width : positive := 4;
		height	   : positive := 5; 
		ctrl_width : positive := 3 );
	port (
		clock 		  : in std_logic;
		index 		  : in std_logic_vector (ctrl_width-1 downto 0);
		char_bitmap   : in std_logic_vector (((char_width-1)*height)-1 downto 0);
		LED_0_pattern : out std_logic_vector (width-1 downto 0);
		LED_1_pattern : out std_logic_vector (width-1 downto 0);
		LED_2_pattern : out std_logic_vector (width-1 downto 0);
		LED_3_pattern : out std_logic_vector (width-1 downto 0);
		LED_4_pattern : out std_logic_vector (width-1 downto 0) );
end component OutputBuffer;
---------------------------
component OutputDecoder is
    generic( Ni : positive := 20;  -- Number of input lines per channel
    		 S  : positive := 10;
    		 E : positive := 30;
		     No : positive := 5;   -- Number of channels / outputs
			 Nc : positive := 5 ); -- Number of control lines
    port( in1  		: in std_logic_vector(Ni-1 downto 0);
          in2  		: in std_logic_vector(Ni-1 downto 0);
          in3  		: in std_logic_vector(Ni-1 downto 0);
		  in4  		: in std_logic_vector(Ni-1 downto 0);
		  in5  		: in std_logic_vector(Ni-1 downto 0);
		  PLL_Clock : in std_logic;
		  reset		: in std_logic; -- Active low
          LEDs 		: out std_logic_vector(No-1 downto 0) );
end component;
-------------------------


-- these magic numbers need to be connected to generics from the top level
signal time_digit : std_logic_vector(3 downto 0);
signal bitmap : std_logic_vector (14 downto 0);
signal count : std_logic_vector (2 downto 0);
signal led0T, led1T, led2T, led3T, led4T : std_logic_vector(19 downto 0);
signal led0B, led1B, led2B, led3B, led4B : std_logic_vector(19 downto 0);
signal reset_one, reset_zero : std_logic;

begin

time_block : component complete_time 
		port map( clock => fast_clock,
				to_lookup =>time_digit, 
				digit_count=>count,
				hrbutton => hrbutton, 
				minbutton => minbutton);
		 
reset_zero <= '0';
LUT : component lookuptable 
			--generic map (incounterwidth => 4); --bitmap dimensions, digit code length
			port map (	num_from_counter => time_digit, 
						clock => fast_clock, 
						reset => reset_zero, 
						disp_value => bitmap 
						);

display_buf : component OutputBuffer
	-- these magic numbers have to be linked to generics from the top level
	--generic map (width =>20, char_width =>4, height =>5, ctrl_width =>3 );
	port map (clock => fast_clock, 
			index => count, 
			char_bitmap => bitmap, 
			LED_0_pattern => led0T,
			LED_1_pattern => led1T,
			LED_2_pattern => led2T,
			LED_3_pattern => led3T,
			LED_4_pattern => led4T );

output_mux_top : component OutputDecoder
			generic map (Ni => 20, S => 10, E => 30, No => 5, Nc => 5) --pixels in one rotation, width of led streams
			port map ( 	in1 => led0T, 
						in2 => led1T, 
				in3 => led2T, 
					in4 => led3T, 
						in5 => led4T, 
						PLL_clock => slow_clock,
						reset => motor_reset,
						LEDs => displayT);

--led0B<="11101110111011101110";
--led1B<="10001000100010000010";
--led2B<="11001100111011101110";
--led3B<="10001000001000101000";
--led4B<="11101110111011101110";

--output_mux_bottom : component OutputDecoder
--			generic map (Ni => 20, S => 50, E => 70, No => 5, Nc => 5) --pixels in one rotation, width of led streams
--			port map ( 	in1 => led0B, 
--						in2 => led1B, 
--				in3 => led2B, 
--					in4 => led3B, 
--						in5 => led4B, 
--						PLL_clock => slow_clock,
--						reset => reset_one,
--						LEDs => displayB);
displayB <= (others => '0');
end blocks;