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) y0 |& R+ W8 X8 O
/*1 q1 ~- j, C' T
* edma_test.c
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*
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* brief EDMA3 Test Application3 N" V; u- S* m r, ]. A& B1 W
*
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* This file contains EDMA3 Test code.3 v4 \" H+ S0 T% E- B( c0 ^
*
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE% C" y7 `: K6 k; R5 g
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT! _1 J T. m/ R) }1 B6 z
* TO CHANGE./ |& _! A4 i) C: P$ Y$ {4 y, I
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/1 |: a; n0 A1 B
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.4 l, I: u: N* d% [) P+ P
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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 the4 r. q3 e# a d- `
* GNU General Public License for more details.
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*/5 S+ s; M: r. N
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/types.h>* b9 J4 T3 c \
#include <linux/interrupt.h>
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#include <asm/io.h>
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#include <linux/moduleparam.h>1 l1 l7 ~9 M5 x. ~% O( C
#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>$ e7 |3 o5 g1 ~& I
#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_DEBUG3 }; m! I, J1 ?: l( \8 \
/*#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)
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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__)+ G Y. ~3 ?4 x; @% i' J
#else
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#define DMA_PRINTK( x... )
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#define DMA_FN_IN( W4 H! P+ n. z- m3 s! t
#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 32 @+ `& v: C) t( L
#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 215 ^' n* b& V: `) Z2 O
#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 23( } Z9 O; |8 x' u% G. d% \
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static volatile int irqraised1 = 0;0 s5 \6 x4 J, O+ e) [
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);+ g, G9 Z$ O$ C" ]
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);# d6 w6 O/ w* H
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dma_addr_t dmaphyssrc1 = 0;$ J. v: p' T3 f! }! V
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;2 ?2 |9 Q V- b& C# [, ^; @
dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL; `, `$ l6 N! y# M9 a$ f/ N: N
char *dmabufsrc2 = NULL;5 S- |8 n1 Q' C [8 }4 L
char *dmabufdest1 = NULL; }9 P7 O* c+ N! ?' j! h* a! N% d# t8 `
char *dmabufdest2 = NULL;
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static int acnt = 512;2 l1 g+ e4 Y- r9 v# C
static int bcnt = 8;6 M- r) m0 d: H! U, E) q$ Q+ `
static int ccnt = 8;9 t+ W6 O6 W0 C9 k8 B
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module_param(acnt, int, S_IRUGO);) e0 L5 @; r' V H. R
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