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[raggedstone] / dhwk / source / pci / config_10h.vhd

diff --git a/dhwk/source/pci/config_10h.vhd b/dhwk/source/pci/config_10h.vhd
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+++ b/dhwk/source/pci/config_10h.vhd
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+-- J.STELZNER
+-- INFORMATIK-3 LABOR
+-- 23.08.2006
+-- File: CONFIG_10H.VHD
+
+library IEEE;
+use IEEE.std_logic_1164.all;
+
+entity CONFIG_10H is
+        port
+        (
+                PCI_CLOCK :in std_logic;
+                PCI_RSTn :in std_logic;
+                AD_REG :in std_logic_vector(31 downto 0);
+                CBE_REGn :in std_logic_vector( 3 downto 0);
+                CONF_WR_10H :in std_logic;
+                CONF_DATA_10H :out std_logic_vector(31 downto 0)
+        );
+end entity CONFIG_10H;
+
+architecture CONFIG_10H_DESIGN of CONFIG_10H is
+
+        signal CONF_BAS_ADDR_REG :std_logic_vector(31 downto 0);
+
+begin
+
+ --*******************************************************************
+ --***** PCI Configuration Space Header "BASE ADDRESS REGISTER" ******
+ --*******************************************************************
+
+        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
+
+        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 (PCI_CLOCK'event and PCI_CLOCK = '1') 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;
+
+CONF_DATA_10H <= CONF_BAS_ADDR_REG;
+
+end architecture CONFIG_10H_DESIGN;