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: a- c6 u1 {0 |7 V0 G7 L1 E
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* edma_test.c" _* y! u1 Q: Q9 S6 Z
*5 c7 I3 _8 a8 u3 y, Z
* brief EDMA3 Test Application
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* This file contains EDMA3 Test code.7 P/ x& }4 C6 |" P! a
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE) e9 c0 S H- E! j+ ~ x( o4 Q
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT' z& a: {3 ^" d8 Y
* TO CHANGE.5 I8 u( k# Y; Y# f* c, w" I8 V
*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/3 Z* g8 B+ {4 r7 F, |
*
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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.) c$ A& A+ k9 G( x8 m
*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any" ]- {* l _3 R0 c0 n* v1 X
* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the% S! S$ Y) g7 `
* GNU General Public License for more details.5 g: f' U: x6 J/ y
*/
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#include <linux/module.h>0 j) R' ~0 Y3 _; d1 Z9 H" V! \3 ]
#include <linux/init.h>8 r. i0 T0 X( [( ^% L+ `! r
#include <linux/errno.h>+ R5 _4 k/ P- K4 G/ K1 i( F
#include <linux/types.h>% W0 k& L& C) H' n) x: Z' a
#include <linux/interrupt.h>! Z4 A: N# q V2 p5 L
#include <asm/io.h>2 Q$ E( p. P1 R! u5 ~" W" y1 N9 z( s
#include <linux/moduleparam.h>2 A4 O- V- f9 I* k) Q
#include <linux/sysctl.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h>) [: ^# j7 s, o& Z0 ?# O: f1 E
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#include <mach/memory.h>3 V" [ n+ W) O6 C& w/ n* Q% r+ ]& d
#include <mach/hardware.h>/ T, Q9 [, S) N- J& [2 Z
#include <mach/irqs.h>
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#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG. u* T4 f4 H2 a
/*#define EDMA3_DEBUG*/7 e3 h; _# _5 h# N
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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__): f) J6 G4 f1 | R: f6 h
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else. {" ]; F# S' t/ l% {. e
#define DMA_PRINTK( x... )
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#define DMA_FN_IN7 b4 ]8 ~+ _$ `7 X' M; w! ~
#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 3
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#define TCINTEN_SHIFT 20- Z$ r5 p( F" Z4 Z8 F
#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 222 Q, I' x7 h5 B5 {+ z- g. x
#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;; p# D& f1 c$ m3 t2 v( w$ `! i& Y2 k5 v
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);
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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;1 H5 m$ }# e6 J* V% d
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;4 c9 i2 Y+ ?! _7 f& z& a7 |
dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL;& q0 o3 X3 W! r" W; o
char *dmabufsrc2 = NULL;
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char *dmabufdest1 = NULL;
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char *dmabufdest2 = NULL;- d3 R5 p$ H% | n! X( X7 u- Q9 m; }
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static int acnt = 512;
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static int bcnt = 8;% S2 F. G' t8 E+ Y m' s
static int ccnt = 8;& Q- H4 Y" T! @7 Q0 z% S. i' [
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module_param(acnt, int, S_IRUGO);7 m* |4 \7 t% H/ _# d: D
module_param(bcnt, int, S_IRUGO);6 t1 x$ n/ ^; K& C6 m
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