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pkg: Implement to_string functions for MAC and IP addresses

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This commit is contained in:
Markus Koch 2022-05-15 14:45:06 +02:00
parent 5f389b0c7b
commit 5f7704cf63
1 changed files with 32 additions and 0 deletions
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32
trashernet/trashernet_pkg.vhd
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@ -19,6 +19,7 @@ package trashernet_pkg is
-- MAC specific types -- MAC specific types
subtype mac_addr_t is byte_vector(0 to 5); subtype mac_addr_t is byte_vector(0 to 5);
function mac_to_string(constant mac_address : in mac_addr_t) return string;
subtype ethertype_t is byte_vector(0 to 1); subtype ethertype_t is byte_vector(0 to 1);
type mac_header_fields is record type mac_header_fields is record
@ -29,6 +30,7 @@ package trashernet_pkg is
-- IP specific types -- IP specific types
subtype ip_addr_t is byte_vector(0 to 3); subtype ip_addr_t is byte_vector(0 to 3);
function ip_to_string(constant ip_address : in ip_addr_t) return string;
-- Configuration interface -- Configuration interface
type configuration_t is record type configuration_t is record
@ -119,8 +121,38 @@ package trashernet_pkg is
type ethernet_ii_out_vector is array (natural range <>) of ethernet_ii_out_t; 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; 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'); constant ETHERNET_II_IN_UNUSED : ethernet_ii_in_t := (tx_mac_address => (others => x"00"), tx_data => x"00", others => '0');
type arp_out_t is record
arp_mac : mac_addr_t; -- Resulting MAC address for query
arp_ok_stb : std_logic; -- ARP request successful, `arp_mac` valid
arp_fail_stb : std_logic; -- ARP request failed, `arp_mac` invalid
end record arp_out_t;
type arp_in_t is record
arp_ip : ip_addr_t; -- IP address to query
arp_query_stb : std_logic; -- Request MAC for IP
end record arp_in_t;
end package trashernet_pkg; end package trashernet_pkg;
package body trashernet_pkg is package body trashernet_pkg is
function mac_to_string(constant mac_address : in mac_addr_t) return string is
begin
return --
to_hstring(mac_address(0)) & ":" & --
to_hstring(mac_address(1)) & ":" & --
to_hstring(mac_address(2)) & ":" & --
to_hstring(mac_address(3)) & ":" & --
to_hstring(mac_address(4)) & ":" & --
to_hstring(mac_address(5)) --
;
end function mac_to_string;
function ip_to_string(constant ip_address : in ip_addr_t) return string is
begin
return --
to_string(to_integer(unsigned(ip_address(0)))) & "." & --
to_string(to_integer(unsigned(ip_address(1)))) & "." & --
to_string(to_integer(unsigned(ip_address(2)))) & "." & --
to_string(to_integer(unsigned(ip_address(3)))) --
;
end function ip_to_string;
end package body trashernet_pkg; end package body trashernet_pkg;