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 application6 ? O- k8 I1 M: `
/*
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* edma_test.c5 @$ u" ?% p: x# k& A0 R) I6 u
*
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* brief EDMA3 Test Application$ u5 O1 b# V3 D/ [
*
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* This file contains EDMA3 Test code.5 [, L5 Q% K- k$ M O/ k$ Q# w
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE" n" |; L/ y0 S1 l7 b
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.+ [8 ]) y! x" H% V1 c/ N& I7 n+ q7 F
*/ n- x% Y1 V7 D0 x1 `2 k
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/; s* b, s$ G1 J1 D
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* This program is free software; you can redistribute it and/or8 x, g x* Z+ }1 F3 [1 B3 S6 f6 d/ p2 e
* modify it under the terms of the GNU General Public License as% Y' F! Z* F8 ^+ u4 v4 `
* published by the Free Software Foundation version 2.% a6 ?& u r) Y4 ?' q) @
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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+ P4 C" C7 z3 } b- m, l
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.$ _5 b( t+ Y5 D2 m) S$ u P
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#include <linux/module.h>
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#include <linux/init.h> P7 W8 S, e3 i( c. O
#include <linux/errno.h>& R' {) h+ \ w4 }" ^
#include <linux/types.h>5 B% P; S& I j# Q" ]
#include <linux/interrupt.h>8 f, j& U1 A: R# h
#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>2 j9 c+ i" Q) }" ?0 m
#include <mach/hardware.h>
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#include <mach/irqs.h>! i) Y( ^ f B) V1 N& \
#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG9 F1 @3 P, u, {+ c' I; B
#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__)( s9 ~& C$ {6 I
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else+ B/ w0 Q" m4 n/ D: w, D% @: q
#define DMA_PRINTK( x... ): m( \) o$ B! ~4 i. T
#define DMA_FN_IN
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#define DMA_FN_OUT1 G/ m! w1 l C) a8 F' T2 ?! s
#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)! _4 ~6 Y& V& v) }& g
#define STATIC_SHIFT 3! g; C# V* b1 w V1 Q" p
#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 23
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static volatile int irqraised1 = 0;' w) _4 c$ a! a, C
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);2 Z4 {! Y" ^/ v! U4 m
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;/ [* t, B8 J0 J! W: K8 F% c
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;/ y* O2 W7 N3 I, ]2 B- d3 L
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;) G2 B8 C- b* @/ A
char *dmabufdest1 = NULL;0 s4 j: T3 I+ n
char *dmabufdest2 = NULL;+ J d. {( I& _# q
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static int acnt = 512;5 v# N$ R: }2 T/ F2 J6 z
static int bcnt = 8; |: i! m- I1 e
static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);5 B3 k! a6 ]2 A7 ]
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