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 application9 [9 C* }" [" h+ e8 ^. r
/*9 }4 V0 ~; _. u
* edma_test.c6 E9 j: J) b% d, l3 b
*
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* brief EDMA3 Test Application9 w& \, X4 u. A) D! i( _! l+ y
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* This file contains EDMA3 Test code.$ H1 J4 w' q+ w- w1 D
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE# Z. X1 h/ a! [2 F# A* K
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT, U# m$ W) R# s `0 e& E
* TO CHANGE.
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/+ E4 s, U( m' b) C& `$ a% n% |+ @
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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.
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*
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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 warranty4 V6 A2 v" t9 _+ J$ n
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>7 h/ g9 C& i* W; M0 M
#include <linux/init.h> i4 F5 J: Y( \+ B; g( L
#include <linux/errno.h>
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#include <linux/types.h>6 D) o/ O% x4 d$ V- _1 @4 l
#include <linux/interrupt.h>
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#include <asm/io.h>9 c1 }3 N" [5 c* W9 A
#include <linux/moduleparam.h>; k. N( h1 A! z) C8 H' E$ M: c
#include <linux/sysctl.h>- N: Y% X& u8 t) m3 F
#include <linux/mm.h> L' i0 \7 V ^
#include <linux/dma-mapping.h>- Z# a) N$ _/ |5 L' |
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#include <mach/memory.h>
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#include <mach/hardware.h>7 ^+ }' \2 @1 w1 k0 G& Y5 M w! D
#include <mach/irqs.h>' J8 n/ B) z" \* i/ C
#include <asm/hardware/edma.h> |2 h" n4 y* v2 c/ R
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#undef EDMA3_DEBUG* A/ M, i* L+ W! U8 j H Z: X4 F3 J4 g
/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG* D/ I/ Q7 \, J \+ Q* m
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS): F4 l' Z: {; ?6 _) I1 f0 K% O
#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__)
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#else
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#define DMA_PRINTK( x... )
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#define DMA_FN_IN, F1 X) B2 f- i1 h% W" u6 M
#define DMA_FN_OUT
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#endif5 } E' \* w4 F
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#define MAX_DMA_TRANSFER_IN_BYTES (32768) A! x* m, y- r/ h' d% w( V
#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 20; t! a" f" V: @5 Y3 @9 j: I+ V
#define ITCINTEN_SHIFT 21+ u( X9 I7 I* h
#define TCCHEN_SHIFT 22; o8 m( K* l+ Z2 K
#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;
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static volatile int irqraised2 = 0;0 W$ T s/ ^ M0 l) q1 C9 F$ N9 E
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);1 L& c9 Q; j6 _
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;! x" e2 d1 Y* ?& d1 ^7 V
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;) `! u% E2 L3 A. a+ O. g4 e0 P- p
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;
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char *dmabufdest1 = NULL;) C m1 o ]$ d) W# k) T! C- g
char *dmabufdest2 = NULL;
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static int acnt = 512;/ e e) E! ?) A0 ?" I, |( P
static int bcnt = 8;
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static int ccnt = 8;9 q+ B/ d [, a7 z3 R
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module_param(acnt, int, S_IRUGO);4 O [: I" ~8 Y- X7 ]
module_param(bcnt, int, S_IRUGO);8 g2 ~/ L) [; ^/ j; F; G
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