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 application8 T: K% I( q @* ?' D9 t3 k3 g9 E
/*7 N2 l7 n5 ~; T3 K% j C9 O2 C1 Z7 C
* edma_test.c
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*
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* brief EDMA3 Test Application
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* This file contains EDMA3 Test code.
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE% m0 t8 f7 ?. B- Q! \. P
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT) ~$ z1 j8 L' j( o* \
* TO CHANGE.
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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* This program is free software; you can redistribute it and/or, i; Y$ `% J6 l, N
* modify it under the terms of the GNU General Public License as9 l* H5 H9 e/ y& a; u. `( o, Z
* 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/ t3 ? t3 D2 G9 ^7 K: k, [) g
* kind, whether express or implied; without even the implied warranty! p8 V0 y3 g3 R4 a1 ~1 E5 n \
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the! a" u7 a ]7 q, X: K* J& {! J8 z
* GNU General Public License for more details.: n/ e* ~3 n" H$ b. h$ s
*/
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#include <linux/module.h>. ^/ {' C3 b! S: p9 E( y
#include <linux/init.h>1 ?* a' }0 K" B6 t! F+ B
#include <linux/errno.h>) j% z7 y& _" H# z
#include <linux/types.h>
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#include <linux/interrupt.h>" u j: ~" [# u Y
#include <asm/io.h># T. K; h/ U! }+ u* k
#include <linux/moduleparam.h>" f! q* Z/ b+ p3 \8 m! f2 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>
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#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/2 o9 Y$ U4 }; c' Y6 \' h
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#ifdef EDMA3_DEBUG- L- M3 @3 r& |, ?& R( P
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)
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#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__)/ O: B. }( F3 U0 \! y' Y+ `
#else
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#define DMA_PRINTK( x... )
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#define DMA_FN_IN o" g5 v! \9 Y" j! ?! K
#define DMA_FN_OUT
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#endif0 U( Q9 R5 I' a% D0 b$ V) b- C
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)) o- }) O3 B4 N4 W
#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 231 t" K1 d4 B |/ O2 v2 ?
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static volatile int irqraised1 = 0;+ `: X* v1 X% y# x
static volatile int irqraised2 = 0;! }6 l( F/ u5 ~+ z9 x8 O1 t
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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);$ S }0 i# S5 B# `* _9 A0 G& }
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);" t) s' ?- ^. a( A, f
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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;+ k9 I* a% ?8 m3 ^. f
dma_addr_t dmaphysdest2 = 0;3 h9 n3 _$ X4 W
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char *dmabufsrc1 = NULL;/ g* ?+ u! W9 d$ d, q) N
char *dmabufsrc2 = NULL;& V, ?8 h, ]3 W% J
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;+ Q4 j8 b* B- M9 d# d' z( B
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