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 |3 I" e/ O" m) k' H4 F9 Z
/*' i5 y$ j0 m9 `* P& m8 D6 ^
* edma_test.c4 ?$ S% H) `. D9 z% Z
*; Q* c! S/ L! ^/ o- r2 v
* brief EDMA3 Test Application7 h: {( B% m/ g; m& C
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* This file contains EDMA3 Test code.& o) n1 y! W% y3 `
*
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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
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* TO CHANGE.) z# w+ t4 l" o! R, T
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/: d. B( Z1 D2 U& C+ Q2 w
*
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* This program is free software; you can redistribute it and/or$ N% D1 g" y! @5 @: F
* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.9 ]" j+ h5 t& ?$ u2 H% y
*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any* e4 c4 n6 z$ J5 L
* kind, whether express or implied; without even the implied warranty9 R( p& i2 s% E# b4 g
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the! F$ h9 `( O$ y+ G$ c+ ^
* GNU General Public License for more details.
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*/
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#include <linux/module.h>, D) S4 w( W+ X4 R' n& ^
#include <linux/init.h>
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#include <linux/errno.h>- A# @( v' U" a+ v9 V8 Q! ]0 s
#include <linux/types.h>! c4 H7 ]. k: B$ z$ s, ~
#include <linux/interrupt.h>
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#include <asm/io.h>4 F) J# f: Y& E; `# C
#include <linux/moduleparam.h>) C- V0 e# x# M; v; D \( |
#include <linux/sysctl.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h>% e7 j* x L2 U. j D2 t
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#include <mach/memory.h>8 a# u1 l3 _% C& d; X7 J, r
#include <mach/hardware.h>; j) ^ ?, [2 q& W
#include <mach/irqs.h>, S3 E$ d# Q5 S+ c& C' f) ]
#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/ v! J' n- T$ `/ g% b3 H) [$ g0 W
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#ifdef EDMA3_DEBUG( F$ v1 @# z& }/ F5 P5 M) w7 a
#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__)6 l* s4 [; E/ g+ V* A. h/ v/ p
#else) h! D0 Z @9 y( R+ |/ B
#define DMA_PRINTK( x... )
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#define DMA_FN_IN' ]9 s1 x3 U3 [. @
#define DMA_FN_OUT
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#endif6 |- j2 Q& B2 Z% N! o {
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#define MAX_DMA_TRANSFER_IN_BYTES (32768): a+ ]' ~; o' t0 g
#define STATIC_SHIFT 3. j& c; \4 v# ~$ p2 X$ F
#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 22* [0 s, M" r- S. k. i/ Y0 ~
#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;/ [, t. ?7 @* A6 w% { G& s. e% a
static volatile int irqraised2 = 0;2 H2 g0 C3 G4 a2 N; h' U2 ?
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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);5 t, U* H# [0 ~8 O U
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);8 u a' l8 u2 a) R* Z6 t
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dma_addr_t dmaphyssrc1 = 0;
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dma_addr_t dmaphyssrc2 = 0;1 }; E1 q& w2 r) i, p) M8 [' _* ?
dma_addr_t dmaphysdest1 = 0;* f9 D& K, D0 g8 b( G& x9 O. }
dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL;: {; w" T+ ^$ H& h; \' x
char *dmabufsrc2 = NULL;
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char *dmabufdest1 = NULL;4 {6 j* }9 | _
char *dmabufdest2 = NULL;+ n% b/ d9 ^2 \3 |: g, ^2 ?. O
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static int acnt = 512;
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static int bcnt = 8;$ f- x9 R6 L H1 l) Q- j
static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);2 T3 w. Y/ q4 J: o* 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