|
|
|
|
|
------------------------------------------------------------------------------
|
|
|
-- This file is a part of the LPP VHDL IP LIBRARY
|
|
|
-- Copyright (C) 2009 - 2010, Laboratory of Plasmas Physic - CNRS
|
|
|
--
|
|
|
-- This program is free software; you can redistribute it and/or modify
|
|
|
-- it under the terms of the GNU General Public License as published by
|
|
|
-- the Free Software Foundation; either version 3 of the License, or
|
|
|
-- (at your option) any later version.
|
|
|
--
|
|
|
-- This program is distributed in the hope that it will be useful,
|
|
|
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
-- GNU General Public License for more details.
|
|
|
--
|
|
|
-- You should have received a copy of the GNU General Public License
|
|
|
-- along with this program; if not, write to the Free Software
|
|
|
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
-------------------------------------------------------------------------------
|
|
|
-- Author : Jean-christophe Pellion
|
|
|
-- Mail : jean-christophe.pellion@lpp.polytechnique.fr
|
|
|
-- jean-christophe.pellion@easii-ic.com
|
|
|
-------------------------------------------------------------------------------
|
|
|
-- 1.0 - initial version
|
|
|
-- 1.1 - (01/11/2013) FIX boundary error (1kB address should not be crossed by BURSTS)
|
|
|
-------------------------------------------------------------------------------
|
|
|
LIBRARY ieee;
|
|
|
USE ieee.std_logic_1164.ALL;
|
|
|
USE ieee.numeric_std.ALL;
|
|
|
LIBRARY grlib;
|
|
|
USE grlib.amba.ALL;
|
|
|
USE grlib.stdlib.ALL;
|
|
|
USE grlib.devices.ALL;
|
|
|
USE GRLIB.DMA2AHB_Package.ALL;
|
|
|
LIBRARY lpp;
|
|
|
USE lpp.lpp_amba.ALL;
|
|
|
USE lpp.apb_devices_list.ALL;
|
|
|
USE lpp.lpp_memory.ALL;
|
|
|
USE lpp.lpp_dma_pkg.ALL;
|
|
|
--USE lpp.lpp_waveform_pkg.ALL;
|
|
|
LIBRARY techmap;
|
|
|
USE techmap.gencomp.ALL;
|
|
|
|
|
|
|
|
|
ENTITY lpp_dma_singleOrBurst IS
|
|
|
GENERIC (
|
|
|
tech : INTEGER := inferred;
|
|
|
hindex : INTEGER := 2
|
|
|
);
|
|
|
PORT (
|
|
|
-- AMBA AHB system signals
|
|
|
HCLK : IN STD_ULOGIC;
|
|
|
HRESETn : IN STD_ULOGIC;
|
|
|
--
|
|
|
run : IN STD_LOGIC;
|
|
|
-- AMBA AHB Master Interface
|
|
|
AHB_Master_In : IN AHB_Mst_In_Type;
|
|
|
AHB_Master_Out : OUT AHB_Mst_Out_Type;
|
|
|
--
|
|
|
send : IN STD_LOGIC;
|
|
|
valid_burst : IN STD_LOGIC; -- (1 => BURST , 0 => SINGLE)
|
|
|
done : OUT STD_LOGIC;
|
|
|
ren : OUT STD_LOGIC;
|
|
|
address : IN STD_LOGIC_VECTOR(31 DOWNTO 0);
|
|
|
data : IN STD_LOGIC_VECTOR(31 DOWNTO 0);
|
|
|
--
|
|
|
debug_dmaout_okay : OUT STD_LOGIC
|
|
|
|
|
|
);
|
|
|
END;
|
|
|
|
|
|
ARCHITECTURE Behavioral OF lpp_dma_singleOrBurst IS
|
|
|
-----------------------------------------------------------------------------
|
|
|
SIGNAL DMAIn : DMA_In_Type;
|
|
|
SIGNAL DMAOut : DMA_OUt_Type;
|
|
|
-----------------------------------------------------------------------------
|
|
|
-----------------------------------------------------------------------------
|
|
|
-- CONTROL
|
|
|
SIGNAL single_send : STD_LOGIC;
|
|
|
SIGNAL burst_send : STD_LOGIC;
|
|
|
|
|
|
-----------------------------------------------------------------------------
|
|
|
-- SEND SINGLE MODULE
|
|
|
SIGNAL single_dmai : DMA_In_Type;
|
|
|
|
|
|
SIGNAL single_send_ok : STD_LOGIC;
|
|
|
SIGNAL single_send_ko : STD_LOGIC;
|
|
|
SIGNAL single_ren : STD_LOGIC;
|
|
|
-----------------------------------------------------------------------------
|
|
|
-- SEND SINGLE MODULE
|
|
|
SIGNAL burst_dmai : DMA_In_Type;
|
|
|
|
|
|
SIGNAL burst_send_ok : STD_LOGIC;
|
|
|
SIGNAL burst_send_ko : STD_LOGIC;
|
|
|
SIGNAL burst_ren : STD_LOGIC;
|
|
|
-----------------------------------------------------------------------------
|
|
|
SIGNAL data_2_halfword : STD_LOGIC_VECTOR(31 DOWNTO 0);
|
|
|
-----------------------------------------------------------------------------
|
|
|
-- \/ -- 20/02/2014 -- JC Pellion
|
|
|
SIGNAL send_reg : STD_LOGIC;
|
|
|
SIGNAL send_s : STD_LOGIC;
|
|
|
-- /\ --
|
|
|
|
|
|
|
|
|
BEGIN
|
|
|
|
|
|
debug_dmaout_okay <= DMAOut.OKAY;
|
|
|
|
|
|
|
|
|
-----------------------------------------------------------------------------
|
|
|
-- DMA to AHB interface
|
|
|
DMA2AHB_1 : DMA2AHB
|
|
|
GENERIC MAP (
|
|
|
hindex => hindex,
|
|
|
vendorid => VENDOR_LPP,
|
|
|
deviceid => 10,
|
|
|
version => 0,
|
|
|
syncrst => 1,
|
|
|
boundary => 1) -- FIX 11/01/2013
|
|
|
PORT MAP (
|
|
|
HCLK => HCLK,
|
|
|
HRESETn => HRESETn,
|
|
|
DMAIn => DMAIn,
|
|
|
DMAOut => DMAOut,
|
|
|
|
|
|
AHBIn => AHB_Master_In,
|
|
|
AHBOut => AHB_Master_Out);
|
|
|
-----------------------------------------------------------------------------
|
|
|
|
|
|
-----------------------------------------------------------------------------
|
|
|
-- \/ -- 20/02/2014 -- JC Pellion
|
|
|
PROCESS (HCLK, HRESETn)
|
|
|
BEGIN
|
|
|
IF HRESETn = '0' THEN
|
|
|
send_reg <= '0';
|
|
|
ELSIF HCLK'event AND HCLK = '1' THEN
|
|
|
send_reg <= send;
|
|
|
END IF;
|
|
|
END PROCESS;
|
|
|
send_s <= send_reg;
|
|
|
|
|
|
single_send <= send_s WHEN valid_burst = '0' ELSE '0';
|
|
|
burst_send <= send_s WHEN valid_burst = '1' ELSE '0';
|
|
|
-- /\ --
|
|
|
|
|
|
DMAIn <= single_dmai WHEN valid_burst = '0' ELSE burst_dmai;
|
|
|
|
|
|
-- TODO : verifier
|
|
|
done <= single_send_ok OR single_send_ko OR burst_send_ok OR burst_send_ko;
|
|
|
--done <= single_send_ok OR single_send_ko WHEN valid_burst = '0' ELSE
|
|
|
-- burst_send_ok OR burst_send_ko;
|
|
|
|
|
|
--ren <= burst_ren WHEN valid_burst = '1' ELSE
|
|
|
-- NOT single_send_ok;
|
|
|
--ren <= burst_ren AND single_ren;
|
|
|
|
|
|
-- \/ JC - 20/01/2014 \/
|
|
|
ren <= burst_ren WHEN valid_burst = '1' ELSE
|
|
|
single_ren;
|
|
|
|
|
|
|
|
|
--ren <= '0' WHEN DMAOut.OKAY = '1' ELSE
|
|
|
-- '1';
|
|
|
-- /\ JC - 20/01/2014 /\
|
|
|
|
|
|
-----------------------------------------------------------------------------
|
|
|
-- SEND 1 word by DMA
|
|
|
-----------------------------------------------------------------------------
|
|
|
lpp_dma_send_1word_1 : lpp_dma_send_1word
|
|
|
PORT MAP (
|
|
|
HCLK => HCLK,
|
|
|
HRESETn => HRESETn,
|
|
|
DMAIn => single_dmai,
|
|
|
DMAOut => DMAOut,
|
|
|
|
|
|
send => single_send,
|
|
|
address => address,
|
|
|
data => data_2_halfword,
|
|
|
ren => single_ren,
|
|
|
|
|
|
send_ok => single_send_ok, -- TODO
|
|
|
send_ko => single_send_ko -- TODO
|
|
|
);
|
|
|
|
|
|
-----------------------------------------------------------------------------
|
|
|
-- SEND 16 word by DMA (in burst mode)
|
|
|
-----------------------------------------------------------------------------
|
|
|
--data_2_halfword(31 DOWNTO 0) <= data(15 DOWNTO 0) & data (31 DOWNTO 16);
|
|
|
data_2_halfword(31 DOWNTO 0) <= data(31 DOWNTO 0);
|
|
|
|
|
|
lpp_dma_send_16word_1 : lpp_dma_send_16word
|
|
|
PORT MAP (
|
|
|
HCLK => HCLK,
|
|
|
HRESETn => HRESETn,
|
|
|
DMAIn => burst_dmai,
|
|
|
DMAOut => DMAOut,
|
|
|
|
|
|
send => burst_send,
|
|
|
address => address,
|
|
|
data => data_2_halfword,
|
|
|
ren => burst_ren,
|
|
|
|
|
|
send_ok => burst_send_ok,
|
|
|
send_ko => burst_send_ko);
|
|
|
|
|
|
END Behavioral;
|
|
|
|
