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 application2 F0 s6 T9 L; I
/*
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* edma_test.c
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*
* brief EDMA3 Test Application
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*
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* This file contains EDMA3 Test code." Y/ w/ ], v1 b6 R2 H* M' e p
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE/ G. d0 h: h% }/ ]2 C/ J0 o
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.+ j* I5 L% y, ]3 c
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/, _& M0 ?: C1 _0 D$ Q1 n% Q! M! u' s( T* x
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* This program is free software; you can redistribute it and/or0 z Q/ T6 }0 i/ B* i# {
* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2./ m; j6 ~1 f/ ]" Q3 `0 }6 F- c
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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
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* GNU General Public License for more details.
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#include <linux/module.h>+ k% M& R W, s$ ~
#include <linux/init.h>. Y9 F( \- Q1 N( N. u
#include <linux/errno.h>
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#include <linux/types.h>9 ?8 e/ D, L9 w1 Z( m
#include <linux/interrupt.h>
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#include <asm/io.h>& N' b: I8 `6 ?4 B
#include <linux/moduleparam.h>
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#include <linux/sysctl.h>
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#include <linux/mm.h>& s& [) O4 x6 {% a# l3 j2 ? h
#include <linux/dma-mapping.h>+ j/ |$ y+ @7 V2 P) t0 M9 g
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#include <mach/memory.h>& `1 O6 B/ J+ Q! e' a2 q
#include <mach/hardware.h>
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#include <mach/irqs.h>' |7 x: B! V' G- q) W
#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG& N2 S. E2 H. Y6 {' S/ q% M
/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG' h8 c6 o! {4 F: j% y% T; z
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)" {1 P# G4 G* y7 f1 P5 W, M# X3 Q- E- A
#define DMA_FN_IN printk(KERN_INFO "[%s]: start\n", __FUNCTION__)0 i2 R6 R1 _& O6 _* b) }9 C
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)3 q4 P/ m# V- o+ W! R
#else
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#define DMA_PRINTK( x... )* d: @) B. M M$ I/ |, H( x
#define DMA_FN_IN
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#define DMA_FN_OUT- y% E a& m" C* O3 T
#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)# {. P* Z# f: P8 v4 n
#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 213 X$ _( e" f! d/ Y; Q
#define TCCHEN_SHIFT 22/ Y. H- ^ y2 ^" h
#define ITCCHEN_SHIFT 236 G( V( k; L3 r# n% ]& b1 R
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static volatile int irqraised1 = 0; y4 { Y4 y( T7 c1 z9 @
static volatile int irqraised2 = 0;
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);. [: E. ]1 p V" R. F! T
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);. E( H( z' ?6 | g- l
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dma_addr_t dmaphyssrc1 = 0;: f8 Z, O" h; F: \
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;' ^! H1 U$ `; K# z, P
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char *dmabufsrc1 = NULL;& _8 b8 V7 A" w* o- Q) Y' k
char *dmabufsrc2 = NULL;* F$ p/ B8 D2 a( v" A
char *dmabufdest1 = NULL;
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char *dmabufdest2 = NULL;
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static int acnt = 512;' ]) r+ E" ^+ i9 ?8 @
static int bcnt = 8;
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static int ccnt = 8;, H4 O) Z+ w# t' _
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module_param(acnt, int, S_IRUGO);+ E5 V: q9 C) M( h
module_param(bcnt, int, S_IRUGO);& p! t* S# R/ M% K, X: s
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