X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/raggedstone/blobdiff_plain/816293e0b569a4cb30f94f8f9dacfb721039ed1d..70f633de02777501eba552b2a46df48f37dab136:/dhwk/source/pci/config_space_header.vhd?ds=sidebyside diff --git a/dhwk/source/pci/config_space_header.vhd b/dhwk/source/pci/config_space_header.vhd index ca437c0..15db761 100644 --- a/dhwk/source/pci/config_space_header.vhd +++ b/dhwk/source/pci/config_space_header.vhd @@ -27,20 +27,6 @@ end CONFIG_SPACE_HEADER; architecture SCHEMATIC of CONFIG_SPACE_HEADER is - constant CONF_DEVICE_ID :std_logic_vector(31 downto 16) := X"AFFE"; - --other comm. device - constant CONF_CLASS_CODE :std_logic_vector (31 downto 8) := X"078000"; - - signal CONF_MAX_LAT :std_logic_vector (31 downto 24); - signal CONF_MIN_GNT :std_logic_vector (23 downto 16); - signal CONF_INT_PIN :std_logic_vector (15 downto 8); - signal CONF_INT_LINE :std_logic_vector ( 7 downto 0); - - signal CONF_BAS_ADDR_REG :std_logic_vector(31 downto 0); - - signal CONF_STATUS :std_logic_vector(31 downto 16); - signal CONF_COMMAND :std_logic_vector(15 downto 0); - SIGNAL gnd : std_logic := '0'; SIGNAL vcc : std_logic := '1'; @@ -48,11 +34,22 @@ architecture SCHEMATIC of CONFIG_SPACE_HEADER is signal CONF_WR_10H : std_logic; signal CONF_WR_3CH : std_logic; signal CONF_READ_SEL : std_logic_vector (2 downto 0); + signal CONF_DATA_10H_DUMMY : std_logic_vector (31 downto 0); signal CONF_DATA_04H_DUMMY : std_logic_vector (31 downto 0); signal CONF_DATA_3CH : std_logic_vector (31 downto 0); signal CONF_DATA_08H : std_logic_vector (31 downto 0); signal CONF_DATA_00H : std_logic_vector (31 downto 0); + component CONFIG_MUX_0 + Port ( CONF_DATA_00H : In std_logic_vector (31 downto 0); + CONF_DATA_04H : In std_logic_vector (31 downto 0); + CONF_DATA_08H : In std_logic_vector (31 downto 0); + CONF_DATA_10H : In std_logic_vector (31 downto 0); + CONF_DATA_3CH : In std_logic_vector (31 downto 0); + READ_SEL : In std_logic_vector (2 downto 0); + CONF_DATA : Out std_logic_vector (31 downto 0) ); + end component; + component CONFIG_RD_0 Port ( ADDR_REG : In std_logic_vector (31 downto 0); CF_RD_COM : In std_logic; @@ -69,25 +66,58 @@ architecture SCHEMATIC of CONFIG_SPACE_HEADER is CONF_WR_3CH : Out std_logic ); end component; + component CONFIG_3CH + Port ( AD_REG : In std_logic_vector (31 downto 0); + CBE_REGn : In std_logic_vector (3 downto 0); + CONF_WR_3CH : In std_logic; + PCI_CLOCK : In std_logic; + PCI_RSTn : In std_logic; + CONF_DATA_3CH : Out std_logic_vector (31 downto 0) ); + end component; + + component CONFIG_10H + Port ( AD_REG : In std_logic_vector (31 downto 0); + CBE_REGn : In std_logic_vector (3 downto 0); + CONF_WR_10H : In std_logic; + PCI_CLOCK : In std_logic; + PCI_RSTn : In std_logic; + CONF_DATA_10H : Out std_logic_vector (31 downto 0) ); + end component; + + component CONFIG_08H + Port ( REVISION_ID : In std_logic_vector (7 downto 0); + CONF_DATA_08H : Out std_logic_vector (31 downto 0) ); + end component; + + component CONFIG_00H + Port ( VENDOR_ID : In std_logic_vector (15 downto 0); + CONF_DATA_00H : Out std_logic_vector (31 downto 0) ); + end component; + + component CONFIG_04H + Port ( AD_REG : In std_logic_vector (31 downto 0); + CBE_REGn : In std_logic_vector (3 downto 0); + CONF_WR_04H : In std_logic; + PCI_CLOCK : In std_logic; + PCI_RSTn : In std_logic; + PERR : In std_logic; + SERR : In std_logic; + CONF_DATA_04H : Out std_logic_vector (31 downto 0) ); + end component; + begin - CONF_DATA_00H <= CONF_DEVICE_ID & VENDOR_ID; - CONF_DATA_08H <= CONF_CLASS_CODE & REVISION_ID; - CONF_DATA_04H <= CONF_STATUS & CONF_COMMAND; - - CONF_MAX_LAT <= X"00"; - CONF_MIN_GNT <= X"00"; - -- CONF_INT_PIN <= X"00"; -- Interrupt - - CONF_INT_PIN <= X"01"; -- Interrupt A - -- CONF_INT_PIN <= X"02"; -- Interrupt B - -- CONF_INT_PIN <= X"03"; -- Interrupt C - -- CONF_INT_PIN <= X"04"; -- Interrupt D - -- CONF_INT_PIN <= X"05 - FF0"; -- Reserviert - CONF_DATA_3CH <= CONF_MAX_LAT & CONF_MIN_GNT & CONF_INT_PIN & CONF_INT_LINE; - - CONF_BAS_ADDR_REG(1 downto 0) <= "01";-- Base Address Register for "I/O" - CONF_BAS_ADDR_REG(3 downto 2) <= "00";-- IO Bereich = 16 BYTE - CONF_DATA_10H <= CONF_BAS_ADDR_REG; + CONF_DATA_04H <= CONF_DATA_04H_DUMMY; + CONF_DATA_10H <= CONF_DATA_10H_DUMMY; + + I10 : CONFIG_MUX_0 + Port Map ( CONF_DATA_00H(31 downto 0)=>CONF_DATA_00H(31 downto 0), + CONF_DATA_04H(31 downto 0)=>CONF_DATA_04H_DUMMY(31 downto 0), + CONF_DATA_08H(31 downto 0)=>CONF_DATA_08H(31 downto 0), + CONF_DATA_10H(31 downto 0)=>CONF_DATA_10H_DUMMY(31 downto 0), + CONF_DATA_3CH(31 downto 0)=>CONF_DATA_3CH(31 downto 0), + READ_SEL(2 downto 0)=>CONF_READ_SEL(2 downto 0), + CONF_DATA(31 downto 0)=>CONF_DATA(31 downto 0) ); I9 : CONFIG_RD_0 Port Map ( ADDR_REG(31 downto 0)=>ADDR_REG(31 downto 0), CF_RD_COM=>CF_RD_COM, @@ -97,138 +127,29 @@ begin CF_WR_COM=>CF_WR_COM, IRDY_REGn=>IRDY_REGn, TRDYn=>TRDYn, CONF_WR_04H=>CONF_WR_04H, CONF_WR_10H=>CONF_WR_10H, CONF_WR_3CH=>CONF_WR_3CH ); + I6 : CONFIG_3CH + Port Map ( AD_REG(31 downto 0)=>AD_REG(31 downto 0), + CBE_REGn(3 downto 0)=>CBE_REGn(3 downto 0), + CONF_WR_3CH=>CONF_WR_3CH, PCI_CLOCK=>PCI_CLOCK, + PCI_RSTn=>PCI_RSTn, + CONF_DATA_3CH(31 downto 0)=>CONF_DATA_3CH(31 downto 0) ); + I5 : CONFIG_10H + Port Map ( AD_REG(31 downto 0)=>AD_REG(31 downto 0), + CBE_REGn(3 downto 0)=>CBE_REGn(3 downto 0), + CONF_WR_10H=>CONF_WR_10H, PCI_CLOCK=>PCI_CLOCK, + PCI_RSTn=>PCI_RSTn, + CONF_DATA_10H(31 downto 0)=>CONF_DATA_10H_DUMMY(31 downto 0) ); + I4 : CONFIG_08H + Port Map ( REVISION_ID(7 downto 0)=>REVISION_ID(7 downto 0), + CONF_DATA_08H(31 downto 0)=>CONF_DATA_08H(31 downto 0) ); + I3 : CONFIG_00H + Port Map ( VENDOR_ID(15 downto 0)=>VENDOR_ID(15 downto 0), + CONF_DATA_00H(31 downto 0)=>CONF_DATA_00H(31 downto 0) ); + I2 : CONFIG_04H + Port Map ( AD_REG(31 downto 0)=>AD_REG(31 downto 0), + CBE_REGn(3 downto 0)=>CBE_REGn(3 downto 0), + CONF_WR_04H=>CONF_WR_04H, PCI_CLOCK=>PCI_CLOCK, + PCI_RSTn=>PCI_RSTn, PERR=>PERR, SERR=>SERR, + CONF_DATA_04H(31 downto 0)=>CONF_DATA_04H_DUMMY(31 downto 0) ); - process (PCI_CLOCK,PCI_RSTn) - begin - if PCI_RSTn = '0' then - CONF_INT_LINE <= (others => '0'); - - elsif (rising_edge(PCI_CLOCK)) then - if CONF_WR_3CH = '1'and CBE_REGn(0) = '0' then - CONF_INT_LINE(7 downto 0) <= AD_REG(7 downto 0); - end if; - end if; - end process; - - process (PCI_CLOCK,PCI_RSTn) - begin - - -- if PCI_RSTn = '0' then CONF_BAS_ADDR_REG(31 downto 2) <= (others =>'0'); - if PCI_RSTn = '0' then - CONF_BAS_ADDR_REG(31 downto 4) <= (others =>'0'); - - elsif (rising_edge(PCI_CLOCK)) then - - if CONF_WR_10H = '1'and CBE_REGn(3) = '0' then - CONF_BAS_ADDR_REG(31 downto 24) <= AD_REG(31 downto 24); - else - CONF_BAS_ADDR_REG(31 downto 24) <= CONF_BAS_ADDR_REG(31 downto 24); - end if; - - if CONF_WR_10H = '1'and CBE_REGn(2) = '0' then - CONF_BAS_ADDR_REG(23 downto 16) <= AD_REG(23 downto 16); - else - CONF_BAS_ADDR_REG(23 downto 16) <= CONF_BAS_ADDR_REG(23 downto 16); - end if; - - if CONF_WR_10H = '1'and CBE_REGn(1) = '0' then - CONF_BAS_ADDR_REG(15 downto 8) <= AD_REG(15 downto 8); - else - CONF_BAS_ADDR_REG(15 downto 8) <= CONF_BAS_ADDR_REG(15 downto 8); - end if; - - -- if CONF_WR_10H = '1'and CBE_REGn(0) = '0' then - -- CONF_BAS_ADDR_REG( 7 downto 2) <= AD_REG( 7 downto 2); - -- else - -- CONF_BAS_ADDR_REG( 7 downto 2) <= CONF_BAS_ADDR_REG( 7 downto 2); - -- end if; - - if CONF_WR_10H = '1'and CBE_REGn(0) = '0' then - CONF_BAS_ADDR_REG( 7 downto 4) <= AD_REG( 7 downto 4); - else - CONF_BAS_ADDR_REG( 7 downto 4) <= CONF_BAS_ADDR_REG( 7 downto 4); - end if; - end if; - end process; - - --******************************************************************* - --************* PCI Configuration Space Header "STATUS" ************* - --******************************************************************* - - CONF_STATUS(20 downto 16) <= "00000";-- Reserved - CONF_STATUS(21 ) <= '0';-- MAS/TAR: "R_O" :'0'= 33MHz / '1'= 66MHz - CONF_STATUS(22 ) <= '0';-- MAS/TAR: "R_O" - CONF_STATUS(23 ) <= '0';-- ???/???: "R_O" : fast back-to-back - CONF_STATUS(24 ) <= '0';-- Master : - --CONF_STATUS(26 downto 25) <= "00";-- Mas/Tar: "R_O" : timing fast for "DEVSEL" - CONF_STATUS(26 downto 25) <= "01";-- Mas/Tar: "R_O" : timing medium for "DEVSEL" - --CONF_STATUS(26 downto 25) <= "10";-- Mas/Tar: "R_O" : timing slow for "DEVSEL" - --CONF_STATUS(26 downto 25) <= "11";-- Mas/Tar: "R_O" : reserved - CONF_STATUS(27 ) <= '0';-- Target : "R_W" : Taget-Abort - CONF_STATUS(28 ) <= '0';-- Master : "R_W" : Taget-Abort - CONF_STATUS(29 ) <= '0';-- Master : "R_W" : Master-Abort - --CONF_STATUS(30 ) <= SERR;-- Mas/Tar: "R_W" : SERR - --CONF_STATUS(31 ) <= PERR;-- Mas/Tar: "R_W" : PERR - - process (PCI_CLOCK,PCI_RSTn) - begin - if PCI_RSTn = '0' then - CONF_STATUS(30) <= '0'; - CONF_STATUS(31) <= '0'; - - elsif (rising_edge(PCI_CLOCK)) then - if CONF_WR_04H = '1' and CBE_REGn(3) = '0' then - CONF_STATUS(30) <= not (AD_REG(30) and CONF_STATUS(30)); - CONF_STATUS(31) <= not (AD_REG(31) and CONF_STATUS(31)); - - else - CONF_STATUS(30) <= SERR or CONF_STATUS(30); - CONF_STATUS(31) <= PERR or CONF_STATUS(31); - - end if; - end if; - end process; - - --******************************************************************* - --*********** PCI Configuration Space Header "COMMAND" ************** - --******************************************************************* - - -- CONF_COMMAND( 0) <= '0';-- I/O Space accesses ??? - -- CONF_COMMAND( 1) <= '0';-- Mem Space accesses ??? - -- CONF_COMMAND( 2) <= '0';-- abillity to act as a master on the PCI bus - -- CONF_COMMAND( 3) <= '0';-- Special Cycle ??? - -- CONF_COMMAND( 4) <= '0';-- Master ??? - -- CONF_COMMAND( 5) <= '0';-- VGA ??? - -- CONF_COMMAND( 6) <= '0';-- Party checking enable/disable - CONF_COMMAND( 7) <= '0';-- address/data stepping ??? - -- CONF_COMMAND( 8) <= '0';-- enable/disable "PCI_SERRn" - -- CONF_COMMAND( 9) <= '0';-- fast back-to-back - -- CONF_COMMAND(10) <= '0';-- Reserved - -- CONF_COMMAND(11) <= '0';-- Reserved - -- CONF_COMMAND(12) <= '0';-- Reserved - -- CONF_COMMAND(13) <= '0';-- Reserved - -- CONF_COMMAND(14) <= '0';-- Reserved - -- CONF_COMMAND(15) <= '0';-- Reserved - - process (PCI_CLOCK,PCI_RSTn) - begin - if PCI_RSTn = '0' then - CONF_COMMAND(15 downto 8) <= (others =>'0'); - CONF_COMMAND( 6 downto 0) <= (others =>'0'); - - elsif (rising_edge(PCI_CLOCK)) then - - if CONF_WR_04H = '1'and CBE_REGn(1) = '0' then - CONF_COMMAND(15 downto 8) <= AD_REG(15 downto 8); - else - CONF_COMMAND(15 downto 8) <= CONF_COMMAND(15 downto 8); - end if; - - if CONF_WR_04H = '1'and CBE_REGn(0) = '0' then - CONF_COMMAND( 6 downto 0) <= AD_REG( 6 downto 0); - else - CONF_COMMAND( 6 downto 0) <= CONF_COMMAND( 6 downto 0); - end if; - end if; - end process; end SCHEMATIC;