X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/raggedstone/blobdiff_plain/7f64ffff4404505290147b02b80d22dcd0e2de65..e00b64cc5780386174db7506cad5bccee09087b0:/dhwk/source/pci/config_space_header.vhd diff --git a/dhwk/source/pci/config_space_header.vhd b/dhwk/source/pci/config_space_header.vhd index 0b98174..15db761 100644 --- a/dhwk/source/pci/config_space_header.vhd +++ b/dhwk/source/pci/config_space_header.vhd @@ -27,94 +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); - - -- PCI Configuration Space Header - -- - -- \ Bit - -- \ - --Address |31 24|23 16|15 8|7 0| - ----------------------------------------------------------------- - --00 |Device ID |Vendor ID | - --04 |Status |Command | - --08 |Class Code |Revision ID | - --0C |BIST |Header Type |Latency T. |Cache L.S. | - --10-24 |Base Address Register | - --28 |Cardbus CIS Pointer | - --2C |Subsystem ID |Subsystem Vendor ID | - --30 |Expansion ROM Base Address | - --34 |Reserved | - --38 |Reserved | - --3C |Max_Lat |Min_Gnt |Int_Pin |Int_Line | - --40-FF | | - ----------------------------------------------------------------- - - - --PCI Bus Commands - --C/BE[3..0] Command Type - -------------------------------------- - -- 0000 Interrupt Acknowledge - -- 0001 Special Cycle - -- 0010 I/O Read - -- 0011 I/O Write - -- 0100 Reserved - -- 0101 Reserved - -- 0110 Memory Read - -- 0111 Memory Write - -- - -- 1000 Reserved - -- 1001 Reserved - -- 1010 Configuration Read - -- 1011 Configuration Write - -- 1100 Memory Read Multiple - -- 1101 Dual Address Cycle - -- 1110 Memory Read Line - -- 1111 Memory Write and Invalidate - - - --PCI Byte Enable - --C/BE[3..0] gueltige Datenbits - ------------------------------- - -- 0000 AD 31..0 - -- 1000 AD 23..0 - -- 1100 AD 15..0 - -- 1110 AD 7..0 - - constant CMD_INT_ACK :std_logic_vector(3 downto 0) := "0000"; - constant CMD_SP_CYC :std_logic_vector(3 downto 0) := "0001"; - constant CMD_IO_READ :std_logic_vector(3 downto 0) := "0010"; - constant CMD_IO_WRITE :std_logic_vector(3 downto 0) := "0011"; - constant CMD_RES_4 :std_logic_vector(3 downto 0) := "0100"; - constant CMD_RES_5 :std_logic_vector(3 downto 0) := "0101"; - constant CMD_MEM_READ :std_logic_vector(3 downto 0) := "0110"; - constant CMD_MEM_WRITE :std_logic_vector(3 downto 0) := "0111"; - constant CMD_RES_8 :std_logic_vector(3 downto 0) := "1000"; - constant CMD_RES_9 :std_logic_vector(3 downto 0) := "1001"; - constant CMD_CONF_READ :std_logic_vector(3 downto 0) := "1010"; - constant CMD_CONF_WRITE :std_logic_vector(3 downto 0) := "1011"; - constant CMD_MEM_READ_M :std_logic_vector(3 downto 0) := "1100"; - constant CMD_DU_ADR_CYC :std_logic_vector(3 downto 0) := "1101"; - constant CMD_MEN_READ_L :std_logic_vector(3 downto 0) := "1110"; - constant CMD_MEM_WRITE_I :std_logic_vector(3 downto 0) := "1111"; - - signal CONFIG_ADDR :std_logic_vector(7 downto 0); - signal CONFIG_WRITE :std_logic_vector(3 downto 0); - - ---- - ---- - SIGNAL gnd : std_logic := '0'; SIGNAL vcc : std_logic := '1'; @@ -122,210 +34,122 @@ 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; READ_SEL : Out std_logic_vector (2 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; - - I9 : CONFIG_RD_0 - Port Map ( ADDR_REG(31 downto 0)=>ADDR_REG(31 downto 0), - CF_RD_COM=>CF_RD_COM, - READ_SEL(2 downto 0)=>CONF_READ_SEL(2 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; - - - --******************************************************************* - --******************* PCI Write Configuration Address *************** - --******************************************************************* - - CONFIG_ADDR(7 downto 0) <= ADDR_REG(7 downto 0); - + component CONFIG_WR_0 + Port ( ADDR_REG : In std_logic_vector (31 downto 0); + CF_WR_COM : In std_logic; + IRDY_REGn : In std_logic; + TRDYn : In std_logic; + CONF_WR_04H : Out std_logic; + CONF_WR_10H : Out std_logic; + CONF_WR_3CH : Out std_logic ); + end component; - process (CF_WR_COM,IRDY_REGn,TRDYn,CONFIG_ADDR) - begin + 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; - if CF_WR_COM = '1' and IRDY_REGn = '0' and TRDYn = '0' then + 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; - if CONFIG_ADDR = X"04" then - CONFIG_WRITE <= "0001"; + 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; - elsif CONFIG_ADDR = X"10" then - CONFIG_WRITE <= "0010"; + 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; - elsif CONFIG_ADDR = X"3C" then - CONFIG_WRITE <= "0100"; + 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; - -- elsif CONFIG_ADDR = X"40" then - -- CONFIG_WRITE <= "1000"; - else - CONFIG_WRITE <= "0000"; - end if; - else - CONFIG_WRITE <= "0000"; - end if; - end process; +begin - CONF_WR_04H <= CONFIG_WRITE(0); - CONF_WR_10H <= CONFIG_WRITE(1); - CONF_WR_3CH <= CONFIG_WRITE(2); - --CONF_WR_40H <= CONFIG_WRITE(3); + 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, + READ_SEL(2 downto 0)=>CONF_READ_SEL(2 downto 0) ); + I8 : CONFIG_WR_0 + Port Map ( ADDR_REG(31 downto 0)=>ADDR_REG(31 downto 0), + 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) ); end SCHEMATIC;