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 application7 R5 ?% ^* A) }3 R* ^% c
/*/ Y% A; P/ T* V' d2 {
* edma_test.c4 E0 |# p3 J* ?9 [) H
*
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* brief EDMA3 Test Application4 d4 C3 _7 S! @; t6 | _, V
*
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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 BE8 L6 t) `, @3 J, A. }) G
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.
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*- Q7 @* i% B6 T
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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* This program is free software; you can redistribute it and/or9 D0 t$ K$ q; a9 ^4 a
* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.! ^$ v7 N% F: a d. Z( X# E# w
*7 |- g5 [# k, F( r7 R3 A
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty6 S. s% U( f8 ]- J1 d, F
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the. z+ z! A/ J6 U3 _2 n4 y! m0 l( ]) z3 f
* GNU General Public License for more details.% G, ]0 _! d& I6 c
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#include <linux/module.h>1 C2 p5 d, u, b. {8 K
#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>/ t, m# j; }% ^6 d E; y7 w
#include <asm/io.h># z2 M1 d& S2 p/ \: F2 \8 n
#include <linux/moduleparam.h>
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#include <linux/sysctl.h>
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#include <linux/mm.h>) O7 d5 A! P. ^+ n( X
#include <linux/dma-mapping.h>$ i7 n7 m% T9 _" J
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#include <mach/memory.h>
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#include <mach/hardware.h>3 ^+ r4 g9 Q& b, }# i2 _0 i i
#include <mach/irqs.h>
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#include <asm/hardware/edma.h> i1 z0 [0 \: |6 c' h
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#undef EDMA3_DEBUG+ }2 A; c& p/ O: ?# c
/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG2 [" |/ m% e+ k; [8 J5 K$ o5 b8 o; Y
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)! [) g1 Z# J- E$ Z
#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__)* h, a4 e( A6 j! o
#else" [2 o1 n" Z) N# `0 i0 @& J
#define DMA_PRINTK( x... )
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#define DMA_FN_IN) {2 s6 N& W4 J6 U* M1 g$ R
#define DMA_FN_OUT
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#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)
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#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 209 |3 g1 `0 W% r9 J
#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 23, Y# S; n# Y% t$ V: \
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static volatile int irqraised1 = 0;
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static volatile int irqraised2 = 0;8 ^: s: p" N. O" E0 G
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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);& _" V; \0 H+ Z) ]8 H4 g/ g* c
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);5 e* O+ e/ h M( j" ~) h4 Z4 r2 j9 h
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dma_addr_t dmaphyssrc1 = 0;4 x; l' q& V3 x* f( l& ]" `
dma_addr_t dmaphyssrc2 = 0;. o8 M6 h4 }1 H) N
dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;' b" d. b$ i1 k o3 \
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char *dmabufsrc1 = NULL;( J7 i6 Z5 H. C3 [5 S& ^$ a
char *dmabufsrc2 = NULL;+ }( p! [+ d5 T1 x7 {) M. p w F
char *dmabufdest1 = NULL;
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char *dmabufdest2 = NULL;
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static int acnt = 512;
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static int bcnt = 8;. {) H% B' m# a1 ]% O
static int ccnt = 8;4 C Q3 h/ U9 w+ I1 ^. k4 R# H( i5 k
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module_param(acnt, int, S_IRUGO);* d! z9 s" d U. j% L B1 r
module_param(bcnt, int, S_IRUGO);* ^" t; ^0 E, m" S- D
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