From ed3bb98ce9380a956f6d769d6116d9ab28975dda Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Franti=C5=A1ek=20Boh=C3=A1=C4=8Dek?=
 <fandabohacek@gmail.com>
Date: Fri, 2 Dec 2022 20:13:35 +0100
Subject: [PATCH] feat(transport): add transport layer entity

---
 src/transport/transport_layer.vhd | 42 +++++++++++++++++++++++++++++++
 src/transport/transport_pkg.vhd   | 15 +++++++++++
 2 files changed, 57 insertions(+)
 create mode 100644 src/transport/transport_layer.vhd
 create mode 100644 src/transport/transport_pkg.vhd

diff --git a/src/transport/transport_layer.vhd b/src/transport/transport_layer.vhd
new file mode 100644
index 0000000..0aa3890
--- /dev/null
+++ b/src/transport/transport_layer.vhd
@@ -0,0 +1,42 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use work.data_link_pkg.all;
+use work.transport_pkg.all;
+
+entity transport_layer is
+  generic (
+    M : integer := 1;                   -- Count of converters
+    S : integer := 1;                   -- Count of samples
+    L : integer := 1);                  -- Count of lanes
+  port (
+    ci_char_clk : in std_logic;
+    ci_frame_clk : in std_logic;
+    ci_reset : in std_logic;
+    di_lanes_data : in frame_character_array(L - 1 downto 0);
+
+    ci_N : in integer range 0 to 256;   -- Number of bits per sample
+    ci_Nn : in integer range 0 to 256;  -- Number of bits per sample + control
+                                        -- bits
+    co_correct_data : out std_logic;
+    do_samples_data : out samples_array(M - 1 downto 0, S - 1 downto 0));
+end entity transport_layer;
+
+architecture a1 of transport_layer is
+
+begin  -- architecture a1
+
+  octets_to_samples: entity work.octets_to_samples
+    generic map (
+      M => M,
+      S => S,
+      L => L)
+    port map (
+      ci_char_clk     => ci_char_clk,
+      ci_frame_clk    => ci_frame_clk,
+      di_lanes_data   => di_lanes_data,
+      ci_N            => ci_N,
+      ci_Nn           => ci_Nn,
+      co_correct_data => co_correct_data,
+      do_samples_data => do_samples_data);
+
+end architecture a1;
diff --git a/src/transport/transport_pkg.vhd b/src/transport/transport_pkg.vhd
new file mode 100644
index 0000000..303b912
--- /dev/null
+++ b/src/transport/transport_pkg.vhd
@@ -0,0 +1,15 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use work.data_link_pkg.all;
+
+package transport_pkg is
+
+  type sample is record
+    data      : std_logic_vector;--(SAMPLE_SIZE - 1 downto 0);
+    ctrl_bits : std_logic_vector;--(CONTROL_SIZE - 1 downto 0);
+  end record sample;
+
+  type frame_character_array is array (natural range <>) of frame_character;
+  type samples_array is array (natural range <>, natural range <>) of sample;
+
+end package transport_pkg;
-- 
2.48.1