entity gbe_ipu_multiplexer is
generic(
- DO_SIMULATION : integer range 0 to 1 := 0;
- INCLUDE_DEBUG : integer range 0 to 1 := 0;
+ DO_SIMULATION : integer range 0 to 1 := 0;
+ INCLUDE_DEBUG : integer range 0 to 1 := 0;
- LINK_HAS_READOUT : std_logic_vector(3 downto 0) := "1111";
- NUMBER_OF_GBE_LINKS : integer range 0 to 4 := 0
+ LINK_HAS_READOUT : std_logic_vector(3 downto 0) := "1111";
+ NUMBER_OF_GBE_LINKS : integer range 0 to 4 := 0
);
port(
CLK_SYS_IN : in std_logic;
signal cts_readout, cts_readout_q : std_logic;
begin
- process(RESET, CLK_SYS_IN)
+ process(CLK_SYS_IN)
begin
- if (RESET = '1') then
- if (LINK_HAS_READOUT(0) = '1') then client_ptr <= 0;
- elsif (LINK_HAS_READOUT(1) = '1') then client_ptr <= 1;
- elsif (LINK_HAS_READOUT(2) = '1') then client_ptr <= 2;
- else client_ptr <= 3;
- end if;
- elsif rising_edge(CLK_SYS_IN) then
- cts_readout <= CTS_START_READOUT_IN;
- cts_readout_q <= cts_readout;
-
- if (cts_readout = '0' and cts_readout_q = '1') then
- client_ptr <= client_ptr;
- case client_ptr is
- when 0 =>
- if (LINK_HAS_READOUT(1) = '1') then client_ptr <= 1;
- elsif (LINK_HAS_READOUT(2) = '1') then client_ptr <= 2;
- elsif (LINK_HAS_READOUT(3) = '1') then client_ptr <= 3;
- else client_ptr <= 0;
- end if;
-
- when 1 =>
- if (LINK_HAS_READOUT(2) = '1') then client_ptr <= 2;
- elsif (LINK_HAS_READOUT(3) = '1') then client_ptr <= 3;
- elsif (LINK_HAS_READOUT(0) = '1') then client_ptr <= 0;
- else client_ptr <= 1;
- end if;
-
- when 2 =>
- if (LINK_HAS_READOUT(3) = '1') then client_ptr <= 3;
- elsif (LINK_HAS_READOUT(0) = '1') then client_ptr <= 0;
- elsif (LINK_HAS_READOUT(1) = '1') then client_ptr <= 1;
- else client_ptr <= 2;
- end if;
-
- when 3 =>
- if (LINK_HAS_READOUT(0) = '1') then client_ptr <= 0;
- elsif (LINK_HAS_READOUT(1) = '1') then client_ptr <= 1;
- elsif (LINK_HAS_READOUT(2) = '1') then client_ptr <= 2;
- else client_ptr <= 3;
- end if;
- when others => client_ptr <= client_ptr;
- end case;
+ if rising_edge(CLK_SYS_IN) then
+ if (RESET = '1') then
+ if (LINK_HAS_READOUT(0) = '1') then
+ client_ptr <= 0;
+ elsif (LINK_HAS_READOUT(1) = '1') then
+ client_ptr <= 1;
+ elsif (LINK_HAS_READOUT(2) = '1') then
+ client_ptr <= 2;
+ else
+ client_ptr <= 3;
+ end if;
else
- client_ptr <= client_ptr;
- end if;
+ cts_readout <= MLT_CTS_READOUT_FINISHED_IN(client_ptr); -- CTS_START_READOUT_IN; -- very hot damn fix
+ cts_readout_q <= cts_readout;
+
+ if (cts_readout = '0' and cts_readout_q = '1') then
+ client_ptr <= client_ptr;
+ case client_ptr is
+ when 0 =>
+ if (LINK_HAS_READOUT(1) = '1') then
+ client_ptr <= 1;
+ elsif (LINK_HAS_READOUT(2) = '1') then
+ client_ptr <= 2;
+ elsif (LINK_HAS_READOUT(3) = '1') then
+ client_ptr <= 3;
+ else
+ client_ptr <= 0;
+ end if;
+
+ when 1 =>
+ if (LINK_HAS_READOUT(2) = '1') then
+ client_ptr <= 2;
+ elsif (LINK_HAS_READOUT(3) = '1') then
+ client_ptr <= 3;
+ elsif (LINK_HAS_READOUT(0) = '1') then
+ client_ptr <= 0;
+ else
+ client_ptr <= 1;
+ end if;
+
+ when 2 =>
+ if (LINK_HAS_READOUT(3) = '1') then
+ client_ptr <= 3;
+ elsif (LINK_HAS_READOUT(0) = '1') then
+ client_ptr <= 0;
+ elsif (LINK_HAS_READOUT(1) = '1') then
+ client_ptr <= 1;
+ else
+ client_ptr <= 2;
+ end if;
+ when 3 =>
+ if (LINK_HAS_READOUT(0) = '1') then
+ client_ptr <= 0;
+ elsif (LINK_HAS_READOUT(1) = '1') then
+ client_ptr <= 1;
+ elsif (LINK_HAS_READOUT(2) = '1') then
+ client_ptr <= 2;
+ else
+ client_ptr <= 3;
+ end if;
+ when others => client_ptr <= client_ptr;
+ end case;
+ else
+ client_ptr <= client_ptr;
+ end if;
+ end if;
end if;
end process;
- process(CLK_SYS_IN, RESET, client_ptr)
+ process(CLK_SYS_IN)
begin
- if (RESET = '1') then
- MLT_CTS_NUMBER_OUT(16 * (client_ptr + 1) - 1 downto 16 * client_ptr) <= (others => '0');
- MLT_CTS_CODE_OUT(8 * (client_ptr + 1) - 1 downto 8 * client_ptr) <= (others => '0');
- MLT_CTS_INFORMATION_OUT(8 * (client_ptr + 1) - 1 downto 8 * client_ptr) <= (others => '0');
- MLT_CTS_READOUT_TYPE_OUT(4 * (client_ptr + 1) - 1 downto 4 * client_ptr) <= (others => '0');
- MLT_CTS_START_READOUT_OUT(client_ptr) <= '0';
- CTS_DATA_OUT <= (others => '0');
- CTS_DATAREADY_OUT <= '0';
- CTS_READOUT_FINISHED_OUT <= '0';
- MLT_CTS_READ_OUT(client_ptr) <= '0';
- CTS_LENGTH_OUT <= (others => '0');
- CTS_ERROR_PATTERN_OUT <= (others => '0');
-
- MLT_FEE_DATA_OUT(16 * (client_ptr + 1) - 1 downto 16 * client_ptr) <= (others => '0');
- MLT_FEE_DATAREADY_OUT(client_ptr) <= '0';
- FEE_READ_OUT <= '0';
- MLT_FEE_STATUS_BITS_OUT(32 * (client_ptr + 1) - 1 downto 32 * client_ptr) <= (others => '0');
- MLT_FEE_BUSY_OUT(client_ptr) <= '0';
- elsif rising_edge(CLK_SYS_IN) then
- MLT_CTS_NUMBER_OUT(16 * (client_ptr + 1) - 1 downto 16 * client_ptr) <= CTS_NUMBER_IN;
- MLT_CTS_CODE_OUT(8 * (client_ptr + 1) - 1 downto 8 * client_ptr) <= CTS_CODE_IN;
- MLT_CTS_INFORMATION_OUT(8 * (client_ptr + 1) - 1 downto 8 * client_ptr) <= CTS_INFORMATION_IN;
- MLT_CTS_READOUT_TYPE_OUT(4 * (client_ptr + 1) - 1 downto 4 * client_ptr) <= CTS_READOUT_TYPE_IN;
- MLT_CTS_START_READOUT_OUT(client_ptr) <= CTS_START_READOUT_IN;
- CTS_DATA_OUT <= MLT_CTS_DATA_IN(32 * (client_ptr + 1) - 1 downto 32 * client_ptr);
- CTS_DATAREADY_OUT <= MLT_CTS_DATAREADY_IN(client_ptr);
- CTS_READOUT_FINISHED_OUT <= MLT_CTS_READOUT_FINISHED_IN(client_ptr);
- MLT_CTS_READ_OUT(client_ptr) <= CTS_READ_IN;
- CTS_LENGTH_OUT <= MLT_CTS_LENGTH_IN(16 * (client_ptr + 1) - 1 downto 16 * client_ptr);
- CTS_ERROR_PATTERN_OUT <= MLT_CTS_ERROR_PATTERN_IN(32 * (client_ptr + 1) - 1 downto 32 * client_ptr);
-
- MLT_FEE_DATA_OUT(16 * (client_ptr + 1) - 1 downto 16 * client_ptr) <= FEE_DATA_IN;
- MLT_FEE_DATAREADY_OUT(client_ptr) <= FEE_DATAREADY_IN;
- FEE_READ_OUT <= MLT_FEE_READ_IN(client_ptr);
- MLT_FEE_STATUS_BITS_OUT(32 * (client_ptr + 1) - 1 downto 32 * client_ptr) <= FEE_STATUS_BITS_IN;
- MLT_FEE_BUSY_OUT(client_ptr) <= FEE_BUSY_IN;
+ if rising_edge(CLK_SYS_IN) then
+ if (RESET = '1') then
+ MLT_CTS_NUMBER_OUT(16 * (client_ptr + 1) - 1 downto 16 * client_ptr) <= (others => '0');
+ MLT_CTS_CODE_OUT(8 * (client_ptr + 1) - 1 downto 8 * client_ptr) <= (others => '0');
+ MLT_CTS_INFORMATION_OUT(8 * (client_ptr + 1) - 1 downto 8 * client_ptr) <= (others => '0');
+ MLT_CTS_READOUT_TYPE_OUT(4 * (client_ptr + 1) - 1 downto 4 * client_ptr) <= (others => '0');
+ MLT_CTS_START_READOUT_OUT(client_ptr) <= '0';
+ CTS_DATA_OUT <= (others => '0');
+ CTS_DATAREADY_OUT <= '0';
+ CTS_READOUT_FINISHED_OUT <= '0';
+ MLT_CTS_READ_OUT(client_ptr) <= '0';
+ CTS_LENGTH_OUT <= (others => '0');
+ CTS_ERROR_PATTERN_OUT <= (others => '0');
+
+ MLT_FEE_DATA_OUT(16 * (client_ptr + 1) - 1 downto 16 * client_ptr) <= (others => '0');
+ MLT_FEE_DATAREADY_OUT(client_ptr) <= '0';
+ FEE_READ_OUT <= '0';
+ MLT_FEE_STATUS_BITS_OUT(32 * (client_ptr + 1) - 1 downto 32 * client_ptr) <= (others => '0');
+ MLT_FEE_BUSY_OUT(client_ptr) <= '0';
+ else
+ MLT_CTS_NUMBER_OUT(16 * (client_ptr + 1) - 1 downto 16 * client_ptr) <= CTS_NUMBER_IN;
+ MLT_CTS_CODE_OUT(8 * (client_ptr + 1) - 1 downto 8 * client_ptr) <= CTS_CODE_IN;
+ MLT_CTS_INFORMATION_OUT(8 * (client_ptr + 1) - 1 downto 8 * client_ptr) <= CTS_INFORMATION_IN;
+ MLT_CTS_READOUT_TYPE_OUT(4 * (client_ptr + 1) - 1 downto 4 * client_ptr) <= CTS_READOUT_TYPE_IN;
+ MLT_CTS_START_READOUT_OUT(client_ptr) <= CTS_START_READOUT_IN;
+ CTS_DATA_OUT <= MLT_CTS_DATA_IN(32 * (client_ptr + 1) - 1 downto 32 * client_ptr);
+ CTS_DATAREADY_OUT <= MLT_CTS_DATAREADY_IN(client_ptr);
+ CTS_READOUT_FINISHED_OUT <= MLT_CTS_READOUT_FINISHED_IN(client_ptr);
+ MLT_CTS_READ_OUT(client_ptr) <= CTS_READ_IN;
+ CTS_LENGTH_OUT <= MLT_CTS_LENGTH_IN(16 * (client_ptr + 1) - 1 downto 16 * client_ptr);
+ CTS_ERROR_PATTERN_OUT <= MLT_CTS_ERROR_PATTERN_IN(32 * (client_ptr + 1) - 1 downto 32 * client_ptr);
+
+ MLT_FEE_DATA_OUT(16 * (client_ptr + 1) - 1 downto 16 * client_ptr) <= FEE_DATA_IN;
+ MLT_FEE_DATAREADY_OUT(client_ptr) <= FEE_DATAREADY_IN;
+ FEE_READ_OUT <= MLT_FEE_READ_IN(client_ptr);
+ MLT_FEE_STATUS_BITS_OUT(32 * (client_ptr + 1) - 1 downto 32 * client_ptr) <= FEE_STATUS_BITS_IN;
+ MLT_FEE_BUSY_OUT(client_ptr) <= FEE_BUSY_IN;
+ end if;
end if;
end process;
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