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( g1 H2 ^3 R1 J( B
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* edma_test.c
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*
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* brief EDMA3 Test Application- s4 W5 m0 p/ I9 m- E
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* This file contains EDMA3 Test code.1 H& x/ n' `/ M/ W+ x! {" i# x# ^
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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 SUBJECT) [" \+ _- D& P( n) \5 Y$ ~% i
* TO CHANGE.6 ~; p' c5 W0 `4 ]+ |
*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or9 c- f2 c0 K0 Y8 r. r5 T d
* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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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./ r+ d0 ]' C7 x3 w: u7 a& K, f* H; L
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#include <linux/module.h>0 a/ {' ^9 ^# s+ d; ?
#include <linux/init.h>
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#include <linux/errno.h> B& F: z, G5 E. F7 ^* _, y q
#include <linux/types.h>' K r+ i6 F# z5 F$ [4 q
#include <linux/interrupt.h>. b- p ?0 H1 l9 B8 C$ {! _. u
#include <asm/io.h>* O M! _9 {9 i6 Q+ a$ w' l6 s% n
#include <linux/moduleparam.h>
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#include <linux/sysctl.h>/ w* n' V# K) D7 `
#include <linux/mm.h>
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#include <linux/dma-mapping.h>" f3 E' T3 z; c; R) k
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#include <mach/memory.h>
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#include <mach/hardware.h>
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#include <mach/irqs.h>% O( y q/ A2 y* {( T+ _
#include <asm/hardware/edma.h>3 {7 @5 I8 _' V/ n2 ~6 C) \
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#undef EDMA3_DEBUG5 ~* L+ T: f7 n8 D# F
/*#define EDMA3_DEBUG*/2 _1 o& e! g! K: A1 k) _, L, S
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#ifdef EDMA3_DEBUG- b! i. u" x+ N% Q& U! 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__)) Z6 P: H# L* z2 \2 \) B
#else& w$ f1 D Z9 |5 {
#define DMA_PRINTK( x... )2 n0 Y. I5 i0 ~. @
#define DMA_FN_IN4 M4 I0 W, w7 h. f+ f0 f
#define DMA_FN_OUT
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#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)" m) R7 n# t5 ~3 j1 w
#define STATIC_SHIFT 3- |$ |2 c% M+ L6 H9 C
#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 21& ^. c- Y+ E, I4 ^( [
#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 235 j* x7 {+ b9 q; {2 y6 t3 V
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static volatile int irqraised1 = 0;
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static volatile int irqraised2 = 0;( Q# A j E7 i3 u/ V9 w
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);* N2 j" ?# x9 v9 p6 z
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);: O8 H) S/ t, A s8 ?
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;0 y |( o- b5 @* }
dma_addr_t dmaphyssrc2 = 0;
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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;6 U' U8 _1 k# I" h
char *dmabufdest1 = NULL;0 R) C+ c. S" D
char *dmabufdest2 = NULL;
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static int acnt = 512;
static int bcnt = 8;
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static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);7 m1 \7 |4 u1 E$ _9 W
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