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