wip: eth

trashernet/trashernet_mac.vhd

@@ -215,6 +215,8 @@ begin
 		phy_in.tx_data_en <= '1' when tx_state /= IDLE else '0';
 		crc_clear         <= '1' when tx_state = HEADER else '0';
 		phy_in.tx_data    <= sr(sr'low);
+		
+		mac_out.tx_active <= phy_out.tx_active;
 	end block tx;
 
 end architecture rtl;

trashernet/trashernet_pkg.vhd

@@ -29,6 +29,11 @@ package trashernet_pkg is
 	-- IP specific types
 	subtype ip_addr_t is byte_vector(0 to 3);
 
+	-- Configuration interface
+	type configuration_t is record
+		mac_address : mac_addr_t;       -- MAC address of this node
+	end record configuration_t;
+
 	-- PHY interface
 	type phy_in_t is record
 		tx_data    : byte;              -- TX Data
@@ -59,11 +64,41 @@ package trashernet_pkg is
 		rx_mac_data       : byte;       -- Ethernet data (after Ethertype)
 		rx_mac_valid      : std_logic;  -- `rx_mac` values (headers + data) are valid
 		tx_mac_data_ack   : std_logic;  -- The byte on `tx_mac_data` has been latched. Update to next word.
+		tx_active         : std_logic;  -- Transmission in progress
 
 		rx_mac_crc_ok     : std_logic;  -- End of packet, CRC OK (strobe independent from other rx_mac fields)
 		rx_mac_crc_error  : std_logic;  -- End of packet, CRC invalid
 	end record mac_out_t;
 
+	-- MAC ETH interface
+	type ethernet_ii_protocol_t is record
+		ethertype : ethertype_t;
+	end record;
+	type ethernet_ii_protocol_vector is array (natural range <>) of ethernet_ii_protocol_t;
+	constant ETHERNET_II_PROTOCOLS_NONE : ethernet_ii_protocol_vector(0 to -1) := (others => (ethertype => (x"00", x"00"))); -- NULL range
+
+	type ethernet_i_out_t is record
+		tbd : std_logic;                -- TODO
+	end record;
+	type ethernet_i_in_t is record
+		tbd : std_logic;                -- TODO
+	end record;
+	constant ETHERNET_I_IN_UNUSED : ethernet_i_in_t := (others => '0'); -- TODO
+
+	type ethernet_ii_out_t is record
+		rx_mac_address : mac_addr_t;    -- Source MAC address
+		rx_data        : byte;          -- RX data
+		rx_data_valid  : std_logic;     -- RX data valid strobe
+		tx_data_ack    : std_logic;     -- Give next data byte or disable `tx_en`
+	end record;
+	type ethernet_ii_in_t is record
+		tx_mac_address : mac_addr_t;    -- Destination MAC address
+		tx_data        : byte;          -- TX data
+		tx_en          : std_logic;     -- Start and continue transmitting
+	end record;
+	type ethernet_ii_out_vector is array (natural range <>) of ethernet_ii_out_t;
+	type ethernet_ii_in_vector is array (natural range <>) of ethernet_ii_in_t;
+	constant ETHERNET_II_IN_UNUSED : ethernet_ii_in_t := (tx_mac_address => (others => x"00"), tx_data => x"00", others => '0');
 end package trashernet_pkg;
 
 package body trashernet_pkg is