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- L% n! M1 ]; B6 F/ ]! @/ t
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* edma_test.c: M1 T7 n! [, h! l
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* brief EDMA3 Test Application
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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
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* TO CHANGE.% l9 i4 E' d! \
*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/4 R' l" j4 A/ h" Q
*
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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.
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*
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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% @2 v" G1 {5 C
* of 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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#include <linux/module.h>" U) v) `* ?7 U& q
#include <linux/init.h>( L+ F/ @( U. H
#include <linux/errno.h>' O7 k# a/ m t: Q# m7 N
#include <linux/types.h># D2 d4 v5 i$ E5 m+ O# Q4 G
#include <linux/interrupt.h>4 |& D6 G. f& J2 _6 f8 |6 V& d( U
#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>! a5 V# G8 Y7 M! L" S$ u9 \
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#include <mach/memory.h>
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#include <mach/hardware.h>
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#include <mach/irqs.h>4 O* D0 A& v! u& }; U* M
#include <asm/hardware/edma.h>: K. \+ c2 g+ M/ T% x! s. b
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#undef EDMA3_DEBUG+ O/ K8 r: _# O* c* _
/*#define EDMA3_DEBUG*/( C) A, W: Q7 L3 L2 p6 J0 d+ W
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#ifdef EDMA3_DEBUG
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#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)1 A( j( a& N; {
#define DMA_FN_IN printk(KERN_INFO "[%s]: start\n", __FUNCTION__)
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#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else% \, i1 }" ]; ?5 w/ c
#define DMA_PRINTK( x... )
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#define DMA_FN_IN
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#define DMA_FN_OUT
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#endif' ~7 M5 H t0 A% T+ g
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)1 w6 i. E9 h& {1 ]0 M
#define STATIC_SHIFT 3 Y8 D) R% W* z2 X8 k. f2 i; M
#define TCINTEN_SHIFT 20+ Z" A: h8 ^; A8 g: y* y2 O* u0 ?# t
#define ITCINTEN_SHIFT 21 S% [( @/ ?! V& s
#define TCCHEN_SHIFT 225 n8 l% X% y4 Q7 j3 {* q/ b3 j3 h
#define ITCCHEN_SHIFT 239 e& B: B; x/ v& `4 Y1 {
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static volatile int irqraised1 = 0;
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static volatile int irqraised2 = 0;5 C$ J+ B% z4 s0 k% Y2 m
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);8 e& R/ o ~. m9 F0 J) ]
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue); y( _/ I2 a! V0 y* X, o
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);2 w+ w) T/ a9 u. k
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dma_addr_t dmaphyssrc1 = 0;) [& L5 E% k/ J$ W3 S5 b
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;0 S& R) g* ?5 d
dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL; x4 i. b) H& H4 j+ h! F- v. k
char *dmabufsrc2 = NULL;7 P0 f& E. Z, K" c
char *dmabufdest1 = NULL;" b. Q, p! {, Z+ K( l) F$ L
char *dmabufdest2 = NULL;
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static int acnt = 512;7 P& f$ m( P8 ]3 ^0 K
static int bcnt = 8;4 [$ J f3 M* m2 _/ a
static int ccnt = 8;( L. ^. F+ C! M% A$ S
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module_param(acnt, int, S_IRUGO);# z& n4 K/ D6 d* p8 E: F" \
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