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# }- R7 c* K: \( P+ K5 C7 x: L% S
/*( Q/ R: P* F* F5 \9 W8 H/ p$ G
* edma_test.c
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*
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* brief EDMA3 Test Application8 r( o ]8 R" a
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* This file contains EDMA3 Test code.: c J; m, M5 n6 i
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE1 Q, E# U3 m) u$ J& {% u
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT- r/ t+ ?# d5 [1 V
* TO CHANGE.2 v( G0 y. I! ]4 r& q0 K% ~5 L
*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/' J; u s4 J* Q- @; H; A
*
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* This program is free software; you can redistribute it and/or0 Z( r" ~! M1 T* D" ?. P
* 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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* This program is distributed "as is" WITHOUT ANY WARRANTY of any8 e1 h9 K% x- W Z' G& Q
* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.% I9 n: v) N5 m, c! ^+ l$ d
*/" L9 S* g& @$ I
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#include <linux/module.h>
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#include <linux/init.h>( d! {6 G* ~8 |# U2 x
#include <linux/errno.h>5 r$ }( f' d( d) X
#include <linux/types.h>4 g/ f! y4 K# j* N
#include <linux/interrupt.h>
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#include <asm/io.h>" n6 p) o6 r+ h0 J4 i
#include <linux/moduleparam.h>9 Q; |; n/ x& J- m8 G' O! p$ i
#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>7 Y1 F7 U5 O6 T- x1 v
#include <mach/hardware.h>: e5 W, i+ F6 \8 x9 X) k
#include <mach/irqs.h>
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#include <asm/hardware/edma.h>0 J1 o0 j. v8 s0 ^
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/1 m& h0 B Q! M2 \0 k( {
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#ifdef EDMA3_DEBUG4 f4 A8 _$ R5 c
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)0 v9 F B9 p6 _: e9 L
#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* Y+ m; B- u! c$ L( a
#define DMA_PRINTK( x... )1 [+ E* A9 K8 O. T2 f$ f8 `
#define DMA_FN_IN% ^" [" ]% F7 a* `, O# R7 @
#define DMA_FN_OUT: ]& Y1 P7 c6 d$ J, x
#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)3 |4 `" h$ l; L: w) W6 @
#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 20 E$ V! r( _. S0 G" J& m
#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 223 a O/ H# w3 x3 h" M
#define ITCCHEN_SHIFT 23; b3 x4 }0 J- w$ J/ r0 Y
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static volatile int irqraised1 = 0;
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static volatile int irqraised2 = 0;0 T/ n) U D o# b+ T8 w
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);
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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);
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dma_addr_t dmaphyssrc1 = 0;; n/ @# j4 G- M
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;2 e% H; ?2 W% d- X# H
dma_addr_t dmaphysdest2 = 0;( c1 x9 n( D+ e& b. v
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char *dmabufsrc1 = NULL;! ?3 q2 G! U( u
char *dmabufsrc2 = NULL;' N, n$ F2 L4 i
char *dmabufdest1 = NULL;9 ?! D- h. Q) u8 ~
char *dmabufdest2 = NULL;" r/ b) v6 r9 j: ?% i8 V1 t
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static int acnt = 512;( c' b" v9 S7 {+ [- O$ L4 {
static int bcnt = 8;4 @/ l* z% l6 `( \
static int ccnt = 8;1 f c5 r* Q1 `8 J) z: ]( e, L: m
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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