239 lines
11 KiB
VHDL
239 lines
11 KiB
VHDL
library ieee;
|
|
use ieee.std_logic_1164.all;
|
|
--use ieee.numeric_std.all;
|
|
use ieee.std_logic_arith.all;
|
|
use ieee.std_logic_unsigned.all;
|
|
|
|
entity qsfp_playback_intfc_128 is
|
|
port (
|
|
rx_device_clk_in : in std_logic;
|
|
rx_device_clk_aresetn_in : in std_logic;
|
|
rx_tdata_128b_in : in std_logic_vector(127 downto 0);
|
|
rx_tvalid_128b_in : in std_logic;
|
|
rx_tready_128b_out : out std_logic;
|
|
rx_tvalid_128b_cnt_out : out std_logic_vector( 31 downto 0);
|
|
rx_tvalid_128b_en_cnt_out : out std_logic_vector( 31 downto 0);
|
|
rx_overflow_128b_cnt_out : out std_logic_vector( 31 downto 0);
|
|
playback_data_path_enable_n_in : in std_logic;
|
|
|
|
qsfp_playback_aclk_in : in std_logic;
|
|
qsfp_playback_aresetn_in : in std_logic;
|
|
qsfp_playback_tdata_240b_out : out std_logic_vector(239 downto 0);
|
|
qsfp_playback_tvalid_240b_out : out std_logic;
|
|
qsfp_playback_tready_240b_in : in std_logic;
|
|
qsfp_playback_tvalid_240b_cnt_out : out std_logic_vector( 31 downto 0);
|
|
|
|
cnt_reset_in : in std_logic
|
|
);
|
|
end entity qsfp_playback_intfc_128;
|
|
|
|
architecture arch_imp of qsfp_playback_intfc_128 is
|
|
|
|
signal playback_data_path_enable_r : std_logic_vector(0 to 31) := (others => '0');
|
|
signal rx_path_fifo_rst_n : std_logic;
|
|
signal rx_path_fifo_rst_1_n : std_logic;
|
|
signal qsfp_fifo_rst_n : std_logic;
|
|
signal qsfp_fifo_rst_n_r : std_logic_vector(0 to 2) := (others => '0');
|
|
signal iq_512b_to_240b_rst_n : std_logic;
|
|
signal playback_data_path_enable : std_logic;
|
|
|
|
signal rx_tvalid_128b_en : std_logic;
|
|
signal rx_tvalid_128b_en_cnt_r : std_logic_vector(31 downto 0) := (others => '0');
|
|
signal rx_tvalid_128b_cnt_r : std_logic_vector(31 downto 0) := (others => '0');
|
|
signal rx_tready_128b : std_logic;
|
|
|
|
signal rx_tdata_128b_pipe : std_logic_vector(127 downto 0);
|
|
signal rx_tvalid_128b_pipe : std_logic;
|
|
signal rx_tready_128b_pipe : std_logic;
|
|
|
|
signal rx_tdata_512b : std_logic_vector(511 downto 0);
|
|
signal rx_tvalid_512b : std_logic;
|
|
signal rx_tready_512b : std_logic;
|
|
signal rx_tdata_512b_pipe : std_logic_vector(511 downto 0);
|
|
signal rx_tvalid_512b_pipe : std_logic;
|
|
signal rx_tready_512b_pipe : std_logic;
|
|
|
|
signal rx_tdata_240b : std_logic_vector(239 downto 0);
|
|
signal rx_tvalid_240b : std_logic;
|
|
signal rx_tready_240b : std_logic;
|
|
|
|
signal rx_tdata_240b_pipe : std_logic_vector(239 downto 0);
|
|
signal rx_tvalid_240b_pipe : std_logic;
|
|
signal rx_tready_240b_pipe : std_logic;
|
|
|
|
signal qsfp_playback_tvalid_240b : std_logic;
|
|
signal qsfp_playback_tvalid_240b_cnt_r : std_logic_vector(31 downto 0) := (others => '0');
|
|
|
|
signal rx_overflow_128b_cnt_r : std_logic_vector(31 downto 0) := (others => '0');
|
|
|
|
begin
|
|
|
|
qsfp_playback_tvalid_240b_out <= qsfp_playback_tvalid_240b;
|
|
qsfp_playback_tvalid_240b_cnt_out <= qsfp_playback_tvalid_240b_cnt_r;
|
|
rx_tvalid_128b_cnt_out <= rx_tvalid_128b_cnt_r;
|
|
rx_tvalid_128b_en_cnt_out <= rx_tvalid_128b_en_cnt_r;
|
|
rx_tready_128b_out <= rx_tready_128b;
|
|
rx_overflow_128b_cnt_out <= rx_overflow_128b_cnt_r;
|
|
|
|
process(rx_device_clk_in, rx_device_clk_aresetn_in)
|
|
begin
|
|
if (rx_device_clk_aresetn_in = '0') then
|
|
playback_data_path_enable_r <= (others => '0');
|
|
elsif (rising_edge(rx_device_clk_in)) then
|
|
if (playback_data_path_enable_n_in = '1') then
|
|
playback_data_path_enable_r <= (others => '0');
|
|
else
|
|
playback_data_path_enable_r <= playback_data_path_enable_r(1 to 31) & '1';
|
|
end if;
|
|
end if;
|
|
end process;
|
|
|
|
rx_path_fifo_rst_n <= playback_data_path_enable_r(27);
|
|
rx_path_fifo_rst_1_n <= playback_data_path_enable_r(26);
|
|
iq_512b_to_240b_rst_n <= playback_data_path_enable_r(20);
|
|
qsfp_fifo_rst_n <= playback_data_path_enable_r(16);
|
|
playback_data_path_enable <= playback_data_path_enable_r(0);
|
|
|
|
process(rx_device_clk_in)
|
|
begin
|
|
if (rising_edge(rx_device_clk_in)) then
|
|
if (cnt_reset_in = '1') then
|
|
rx_tvalid_128b_cnt_r <= (others => '0');
|
|
elsif (rx_tvalid_128b_in = '1') then
|
|
rx_tvalid_128b_cnt_r <= rx_tvalid_128b_cnt_r + 1;
|
|
end if;
|
|
end if;
|
|
end process;
|
|
|
|
process(rx_device_clk_in)
|
|
begin
|
|
if (rising_edge(rx_device_clk_in)) then
|
|
if ((rx_path_fifo_rst_n = '1' and rx_path_fifo_rst_1_n = '0') or cnt_reset_in = '1') then
|
|
rx_overflow_128b_cnt_r <= (others => '0');
|
|
elsif (rx_tvalid_128b_en = '1' and rx_tready_128b = '0') then
|
|
rx_overflow_128b_cnt_r <= rx_overflow_128b_cnt_r + 1;
|
|
end if;
|
|
end if;
|
|
end process;
|
|
|
|
rx_tvalid_128b_en <= rx_tvalid_128b_in when playback_data_path_enable = '1' else '0';
|
|
|
|
i_rx_register_slice_128b : entity work.axis_register_slice_128b
|
|
port map (
|
|
aclk => rx_device_clk_in, -- in
|
|
aresetn => rx_path_fifo_rst_n, -- in
|
|
s_axis_tdata => rx_tdata_128b_in, -- in
|
|
s_axis_tvalid => rx_tvalid_128b_en, -- in
|
|
s_axis_tready => rx_tready_128b, -- out
|
|
|
|
m_axis_tdata => rx_tdata_128b_pipe, -- out
|
|
m_axis_tvalid => rx_tvalid_128b_pipe, -- out
|
|
m_axis_tready => rx_tready_128b_pipe -- in
|
|
);
|
|
|
|
|
|
-- i_ila_4 : entity work.ila_4
|
|
-- port map (
|
|
-- clk => rx_device_clk_in,
|
|
-- probe0 => rx_tdata_128b_in, -- 128
|
|
-- probe1 => rx_tvalid_128b_en, -- 1
|
|
-- probe2 => rx_tready_128b, -- 1
|
|
-- probe3 => rx_tvalid_128b_cnt_r -- 32
|
|
-- );
|
|
|
|
|
|
process(rx_device_clk_in)
|
|
begin
|
|
if (rising_edge(rx_device_clk_in)) then
|
|
if ((rx_path_fifo_rst_n = '1' and rx_path_fifo_rst_1_n = '0') or cnt_reset_in = '1') then
|
|
rx_tvalid_128b_en_cnt_r <= (others => '0');
|
|
elsif (rx_tvalid_128b_pipe = '1' and rx_tready_128b_pipe = '1') then
|
|
rx_tvalid_128b_en_cnt_r <= rx_tvalid_128b_en_cnt_r + 1;
|
|
end if;
|
|
end if;
|
|
end process;
|
|
|
|
i_axis_dwidth_converter_128b_to_512b : entity work.axis_dwidth_converter_128b_to_512b
|
|
port map (
|
|
aclk => rx_device_clk_in, -- in
|
|
aresetn => rx_path_fifo_rst_n, -- in
|
|
s_axis_tdata => rx_tdata_128b_pipe, -- in
|
|
s_axis_tvalid => rx_tvalid_128b_pipe,-- in
|
|
s_axis_tready => rx_tready_128b_pipe,-- out
|
|
m_axis_tdata => rx_tdata_512b, -- out
|
|
m_axis_tvalid => rx_tvalid_512b, -- out
|
|
m_axis_tready => rx_tready_512b -- in
|
|
);
|
|
|
|
i_qsfp_reg_slice_512 : entity work.axis_register_slice_512b
|
|
port map (
|
|
aclk => rx_device_clk_in, -- in
|
|
aresetn => rx_path_fifo_rst_n, -- in
|
|
s_axis_tdata => rx_tdata_512b, -- in
|
|
s_axis_tvalid => rx_tvalid_512b, -- in
|
|
s_axis_tready => rx_tready_512b, -- out
|
|
m_axis_tdata => rx_tdata_512b_pipe, -- out
|
|
m_axis_tvalid => rx_tvalid_512b_pipe, -- out
|
|
m_axis_tready => rx_tready_512b_pipe -- in
|
|
);
|
|
|
|
i_iq_512b_to_240b : entity work.iq_512b_to_240b
|
|
port map (
|
|
aclk => rx_device_clk_in, -- in
|
|
aresetn => iq_512b_to_240b_rst_n, -- in
|
|
s_axis_tdata => rx_tdata_512b_pipe, --in
|
|
s_axis_tvalid => rx_tvalid_512b_pipe, --in
|
|
s_axis_tready => rx_tready_512b_pipe, --out
|
|
m_axis_tdata => rx_tdata_240b, --out
|
|
m_axis_tvalid => rx_tvalid_240b, --out
|
|
m_axis_tready => rx_tready_240b --in
|
|
);
|
|
|
|
i_qsfp_reg_slice_240b : entity work.axis_register_slice_240b
|
|
port map (
|
|
aclk => rx_device_clk_in, -- in
|
|
aresetn => rx_path_fifo_rst_n, -- in
|
|
s_axis_tdata => rx_tdata_240b, --in
|
|
s_axis_tvalid => rx_tvalid_240b, --in
|
|
s_axis_tready => rx_tready_240b, --out
|
|
m_axis_tdata => rx_tdata_240b_pipe, --out
|
|
m_axis_tvalid => rx_tvalid_240b_pipe, --out
|
|
m_axis_tready => rx_tready_240b_pipe --in
|
|
);
|
|
|
|
i_qsfp_fifo : entity work.axis_data_afifo_32x240
|
|
port map (
|
|
s_axis_aclk => rx_device_clk_in, -- in
|
|
s_axis_aresetn => qsfp_fifo_rst_n, -- in
|
|
s_axis_tdata => rx_tdata_240b_pipe, --in rx_tdata_240b, --in
|
|
s_axis_tvalid => rx_tvalid_240b_pipe, --in rx_tvalid_240b, --in
|
|
s_axis_tready => rx_tready_240b_pipe, --out rx_tready_240b, --out
|
|
|
|
m_axis_aclk => qsfp_playback_aclk_in, -- in
|
|
m_axis_tdata => qsfp_playback_tdata_240b_out, --out
|
|
m_axis_tvalid => qsfp_playback_tvalid_240b, --out
|
|
m_axis_tready => qsfp_playback_tready_240b_in --in
|
|
);
|
|
|
|
|
|
process(qsfp_playback_aclk_in)
|
|
begin
|
|
if (rising_edge(qsfp_playback_aclk_in)) then
|
|
qsfp_fifo_rst_n_r <= qsfp_fifo_rst_n_r(1 to 2) & qsfp_fifo_rst_n;
|
|
end if;
|
|
end process;
|
|
|
|
process(qsfp_playback_aclk_in)
|
|
begin
|
|
if (rising_edge(qsfp_playback_aclk_in)) then
|
|
if ((qsfp_fifo_rst_n_r(1) = '1' and qsfp_fifo_rst_n_r(0) = '0') or cnt_reset_in = '1') then
|
|
qsfp_playback_tvalid_240b_cnt_r <= (others => '0');
|
|
elsif (qsfp_playback_tvalid_240b = '1' and qsfp_playback_tready_240b_in = '1') then
|
|
qsfp_playback_tvalid_240b_cnt_r <= qsfp_playback_tvalid_240b_cnt_r + 1;
|
|
end if;
|
|
end if;
|
|
end process;
|
|
|
|
end architecture arch_imp;
|
|
|