OMAPL138如何在Linux下使用EDMA3驱动

yyj · 发表于 2018-1-30 11:01:43

本帖最后由 yyj 于 2018-1-30 11:01 编辑

[code]EDMA sample test application% n) L; v% o3 d6 ~+ C$ o
/*
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* edma_test.c
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* brief EDMA3 Test Application% z9 r; g# `0 h9 E' c
*
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* This file contains EDMA3 Test code.
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*
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE
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* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT# u* E* O2 ^ V( {! U1 }
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/4 Y, G F# J* Y: I8 A. o
*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.; _- ~7 L( M& G* I: N+ _8 }
*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the* d* h- z& b$ B" x- C
* GNU General Public License for more details.9 |' A( q+ ~& k. x: d" d% |
*/
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#include <linux/module.h>
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#include <linux/init.h>- P1 y/ h6 p; H z/ r
#include <linux/errno.h>
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#include <linux/types.h>4 m( T' Q0 k [0 z6 {* C+ q
#include <linux/interrupt.h>
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#include <asm/io.h>
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#include <linux/moduleparam.h>
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#include <linux/sysctl.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h>
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#include <mach/memory.h>6 g8 q" H( o! g& ]3 }
#include <mach/hardware.h>* q) a: G' T# O! @, v
#include <mach/irqs.h> h. t# Z& J0 \1 {7 Z( Z9 h4 q* l! V
#include <asm/hardware/edma.h>+ ^- n* A# h F- H# w
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG' A& u! b! ^) K3 s
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)& l* t$ h; H% }9 r: n# v4 p
#define DMA_FN_IN printk(KERN_INFO "[%s]: start\n", __FUNCTION__)" n0 U! r( A ~2 ^; M& \4 X8 o! s
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else
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#define DMA_PRINTK( x... )' [ b7 h4 H! P3 K9 V* P
#define DMA_FN_IN+ ?6 l: v: N3 P& i0 G" { W
#define DMA_FN_OUT
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#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)8 i3 ]! ]9 s- Q. ?: q
#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 20" H. i( Z6 e6 j. R* v
#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 220 O% r z5 M* P3 D; J. z4 Y
#define ITCCHEN_SHIFT 23- G {. ?, K' b4 H; S
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static volatile int irqraised1 = 0;
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static volatile int irqraised2 = 0;8 ~. ~% }7 R3 Z9 Q, d
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);9 ~1 J$ k+ A3 g/ c: G
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);
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int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);) _: V4 N7 w2 n: o$ I& o
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dma_addr_t dmaphyssrc1 = 0;
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dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;9 G M% m. D5 ]. h
char *dmabufdest1 = NULL;2 k) ? {# X" M0 r
char *dmabufdest2 = NULL;. H$ A* \6 }, h9 }
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static int acnt = 512;
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static int bcnt = 8;) a7 H; y/ _# j, S$ |$ v: ~$ x1 U7 Y
static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);
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module_param(ccnt, int, S_IRUGO);

复制代码

   这是在TI上找到的一个针对Davanci处理器简单的EDMA3驱动程序测试例程的一部分，我在编译的过程中是用
arm-none-linux-gnueabi-gcc  -I /home/tl/omapl138/linux-3.3/arch/arm/include -I /home/tl/omapl138/linux-3.3/include  EDMA3test.cpp -o EDMA3这个命令来链接库文件进行编译，但是报的错误特别多，我又试着一个函数一个函数往进加，仍然是很多错误。
   我想问一下如何用一个简单的程序来测试一下EDMA3的驱动。

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[未解决] OMAPL138如何在Linux下使用EDMA3驱动