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- added PS2 interface 0

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git-svn-id: http://moon:8086/svn/vhdl/trunk@617 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2009-11-06 13:14:44 +00:00
parent f9d1fc4945
commit 33f61f3007
5 changed files with 135 additions and 6 deletions
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projects/mips_sys/src/mips_sys.vhd
+65 -4
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@@ -120,6 +120,9 @@ PORT
sys_ac97_sdata_out : out std_logic;
sys_ac97_ssync : out std_logic;
sys_ps2_0_clk : inout std_logic;
sys_ps2_0_data : inout std_logic;
sys_error : out unsigned(1 downto 0) -- indicates Errors
);
@@ -332,6 +335,10 @@ ARCHITECTURE behavior OF mips_sys IS
signal flash_rstn : std_logic;
signal flash_page_mode_en : std_logic;
signal flash_addr : unsigned(24 downto 0);
signal ps2_0_clk_rx : std_logic;
signal ps2_0_data_rx : std_logic;
signal ps2_0_clk_tx : std_logic;
signal ps2_0_data_tx : std_logic;
-- Arbiter
constant ARB_MAX_MASTER : natural := 2;
@@ -425,6 +432,12 @@ ARCHITECTURE behavior OF mips_sys IS
signal SRDY_O_ac97 : std_logic;
signal SDAT_O_ac97 : unsigned(31 downto 0);
signal INT_O_ps2_0 : std_logic;
signal CYC_I_ps2_0 : std_logic;
signal ACK_O_ps2_0 : std_logic;
signal SRDY_O_ps2_0 : std_logic;
signal SDAT_O_ps2_0 : unsigned(31 downto 0);
signal gpo0 : unsigned(31 downto 0);
signal gpo1 : unsigned(31 downto 0);
signal gpi0 : unsigned(31 downto 0);
@@ -441,7 +454,7 @@ ARCHITECTURE behavior OF mips_sys IS
-- attribute rom_style of cpu_cpu_write_fifo_dout: signal is "DISTRIBUTED";
-- attribute rom_style of cpu_read_fifo_dout: signal is "DISTRIBUTED";
type mem_area_t is (mem_dead, mem_flash, mem_usb, mem_rom, mem_gpio, mem_uart0, mem_uart1, mem_sdram, mem_vga, mem_ac97);
type mem_area_t is (mem_dead, mem_flash, mem_usb, mem_rom, mem_gpio, mem_uart0, mem_uart1, mem_ps2_0, mem_ps2_1, mem_sdram, mem_vga, mem_ac97);
signal mem_area : mem_area_t;
attribute KEEP : string;
@@ -526,7 +539,7 @@ int_sample:
process(CLK_O)
begin
if rising_edge(CLK_O) then
INT <= int_timer & '0' & (gpo1(2) and INT_O_ac97) & (gpo1(1) and sys_usb_int) & (int_uart0 or int_uart1) & sys_btn(4);
INT <= int_timer & INT_O_ps2_0 & (gpo1(2) and INT_O_ac97) & (gpo1(1) and sys_usb_int) & (int_uart0 or int_uart1) & sys_btn(4);
end if;
end process;
@@ -547,6 +560,10 @@ mem_mux:
mem_area <= mem_uart0;
elsif ADDR_O(9 downto 8) = "01" then
mem_area <= mem_uart1;
elsif ADDR_O(9 downto 8) = "10" then
mem_area <= mem_ps2_0;
elsif ADDR_O(9 downto 8) = "11" then
mem_area <= mem_ps2_1;
end if;
elsif ADDR_O(18 downto 16) = "010" then
mem_area <= mem_usb;
@@ -571,6 +588,7 @@ signal_mux:
CYC_I_uart0 <= '0';
CYC_I_uart1 <= '0';
CYC_I_ps2_0 <= '0';
CYC_I_gpio <= '0';
CYC_I_flash <= '0';
CYC_I_usb <= '0';
@@ -590,6 +608,9 @@ signal_mux:
when mem_uart1 =>
CYC_I_uart1 <= CYC_O;
when mem_ps2_0 =>
CYC_I_ps2_0 <= CYC_O;
when mem_flash =>
CYC_I_flash <= CYC_O;
@@ -615,14 +636,15 @@ signal_mux:
end process;
------------------------------------------------------------------
SRDY_I <= SRDY_O_flash or SRDY_O_usb or SRDY_O_sdram or SRDY_O_rom or SRDY_O_uart0 or SRDY_O_uart1 or SRDY_O_gpio or SRDY_O_vga or SRDY_O_ac97;
ACK_I <= ACK_O_flash or ACK_O_usb or ACK_O_sdram or ACK_O_rom or ACK_O_uart0 or ACK_O_uart1 or ACK_O_gpio or ACK_O_vga or ACK_O_ac97;
SRDY_I <= SRDY_O_flash or SRDY_O_usb or SRDY_O_sdram or SRDY_O_rom or SRDY_O_uart0 or SRDY_O_uart1 or SRDY_O_ps2_0 or SRDY_O_gpio or SRDY_O_vga or SRDY_O_ac97;
ACK_I <= ACK_O_flash or ACK_O_usb or ACK_O_sdram or ACK_O_rom or ACK_O_uart0 or ACK_O_uart1 or ACK_O_ps2_0 or ACK_O_gpio or ACK_O_vga or ACK_O_ac97;
MDAT_I <= SDAT_O_sdram(31 downto 0) when CYC_I_sdram = '1' else
SDAT_O_rom when CYC_I_rom = '1' else
SDAT_O_flash when CYC_I_flash = '1' else
SDAT_O_usb when CYC_I_usb = '1' else
SDAT_O_uart0 when CYC_I_uart0 = '1' else
SDAT_O_uart1 when CYC_I_uart1 = '1' else
SDAT_O_ps2_0 when CYC_I_ps2_0 = '1' else
SDAT_O_vga when CYC_I_vga = '1' else
SDAT_O_ac97 when CYC_I_ac97 = '1' else
SDAT_O_gpio when CYC_I_gpio = '1' else X"DEADBEEF";
@@ -952,5 +974,44 @@ inst_ac97_wb : entity work.ac97_wb
ac97_ssync => sys_ac97_ssync
);
inst_ps2_wb_0: entity work.ps2_wb
GENERIC MAP
(
f_sys_clk_hz => sys_freq
)
PORT MAP
(
CLK_I => CLK_O,
RST_I => RST_O,
CYC_I => CYC_I_ps2_0,
STB_I => STB_O,
SEL_I => SEL_O,
WE_I => WE_O,
ACK_O => ACK_O_ps2_0,
SRDY_O => SRDY_O_ps2_0,
MRDY_I => MRDY_O,
ADDR_I => ADDR_O,
DAT_I => MDAT_O,
DAT_O => SDAT_O_ps2_0,
INT_O => INT_O_ps2_0,
clk_rx => ps2_0_clk_rx,
data_rx => ps2_0_data_rx,
clk_tx => ps2_0_clk_tx,
data_tx => ps2_0_data_tx
);
inst_ps2_phy_0: entity work.ps2_phy
PORT MAP
(
rst => RST_O,
clk => CLK_O,
ps2_clk => sys_ps2_0_clk,
ps2_data => sys_ps2_0_data,
rx_clk => ps2_0_clk_rx,
rx_data => ps2_0_data_rx,
tx_clk => ps2_0_clk_tx,
tx_data => ps2_0_data_tx
);
------------------------------------------------------------------
END;