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 W9 u4 w, s4 h; S& _8 @% v6 T
/*
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* edma_test.c
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*
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* brief EDMA3 Test Application) n \: T* c$ n) b
*
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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 SUBJECT3 D! o6 b% m2 c+ A* I; a G9 v
* TO CHANGE.- a3 O" m8 Z. Z7 A( Y" _/ H4 h
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/3 A& p6 l! c+ u2 l& x/ C
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* This program is free software; you can redistribute it and/or6 x3 M; P) Z8 U# B/ J- q: X1 ^
* modify it under the terms of the GNU General Public License as# }8 d) F% L' C4 C0 m! A( r, a
* published by the Free Software Foundation version 2.. C# v* S$ R H. A* _
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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.4 |. \# i" t Z" J
*/
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#include <linux/module.h>- P8 K" t! N. o M8 Q
#include <linux/init.h># b. [" s% Y% s& R- ^
#include <linux/errno.h>4 w/ s# d2 h( z
#include <linux/types.h>0 P w4 b8 ]- ]# I: w3 o4 b
#include <linux/interrupt.h>
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#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>
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#include <mach/memory.h>; L8 c+ s: X, Z3 I2 e5 s; H6 o
#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <asm/hardware/edma.h>' g7 y b6 R" J5 S
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG
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#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)% c. U6 X; V% i" a6 v Q( I2 \, d' s
#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__), E' p; v1 t0 P& B' a6 O
#else$ [ Y- k$ _* \
#define DMA_PRINTK( x... )
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#define DMA_FN_IN0 t9 R, Q* @- j, R2 \- I& J
#define DMA_FN_OUT
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#endif, J5 o" V+ G. \. a
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)8 G& Y& o Z/ N% @" G# v; C4 G
#define STATIC_SHIFT 3: O* O, ]" t0 t6 s! M* w
#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 216 r. u' C3 I$ d6 H) \) o I$ ]
#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;. H, n u' G$ J
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);
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int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);* d/ q9 _9 v0 X
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;; i1 h! S4 z0 f; Z
dma_addr_t dmaphyssrc2 = 0;4 C( O$ b: ` M% q! V9 J6 r
dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;3 h4 G( I! F4 f& L+ A0 C
char *dmabufdest1 = NULL;2 @6 Y, l/ ]. ^/ c$ u
char *dmabufdest2 = NULL;
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static int acnt = 512;
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static int bcnt = 8;5 Z! N: \6 p( b2 K3 Z- L" N! d
static int ccnt = 8;8 j4 j3 N# N# f, H
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module_param(acnt, int, S_IRUGO);+ I& w8 W7 g- R+ g2 f6 v
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