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" [: h: G6 Q' u) x
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* edma_test.c7 s4 U+ w" [. G3 g3 ^) A
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* brief EDMA3 Test Application
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*
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* This file contains EDMA3 Test code. f: g2 s) c6 P' u# I
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE& Z' r2 t5 k7 D
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT% F/ V% d- d9 w5 a' c4 G" j, u
* TO CHANGE.
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/' B5 ~8 a4 h( f1 m, D( P) S
*
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* This program is free software; you can redistribute it and/or i/ Y8 ^1 N! ^& X
* 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* t3 h9 `% m( D: J0 J/ C$ I. P
* kind, whether express or implied; without even the implied warranty2 L4 L8 W9 u! G. ]
* 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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#include <linux/module.h>- p; z& ]" E" g' A
#include <linux/init.h>4 H$ Z# o# y" k D" M8 J
#include <linux/errno.h>6 B* t" t5 G6 j' I
#include <linux/types.h>: O6 o. a7 j3 S" O5 j
#include <linux/interrupt.h>
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#include <asm/io.h>! j) c3 o" o+ F7 B' @3 d0 Z
#include <linux/moduleparam.h>( R1 U) j7 G+ u6 S" e. S
#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>! \# C; [: k7 w/ | o
#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG5 Y& P4 w8 A9 K
/*#define EDMA3_DEBUG*/1 @' T- a4 Q8 ^4 L" I6 a( t
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#ifdef EDMA3_DEBUG& S- U! t9 J- ?+ t% Y! ]+ {) x9 h8 T
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)6 Q X7 f4 b+ M- P
#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... )- [' I" B9 m, F$ k' P0 }
#define DMA_FN_IN
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#define DMA_FN_OUT
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#endif- U, F0 E3 m g0 N3 e+ e2 |+ E3 a
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)4 S8 Q3 ~3 }3 ^% q8 |: R/ B/ O
#define STATIC_SHIFT 3 o, w F6 O* H# _
#define TCINTEN_SHIFT 209 Y1 w* L& l/ c! ^& t
#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 22% H) u2 S) I5 t9 h6 M: d5 S" k
#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;
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static volatile int irqraised2 = 0;( x' \5 H" a& F9 N8 a2 A
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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);. N+ g+ t2 u1 S8 D4 L
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);' Q' Q% ]9 ?) \7 e" B
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dma_addr_t dmaphyssrc1 = 0;
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dma_addr_t dmaphyssrc2 = 0;) W+ Q+ `0 K; p
dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;6 B8 f! z2 ]( Q |* [' s x
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char *dmabufsrc1 = NULL;, P6 l* F( N3 ^" q- ~+ D
char *dmabufsrc2 = NULL;+ E4 G% M4 O, E' k4 n
char *dmabufdest1 = NULL;* @2 s9 c8 Y- ~: _) u
char *dmabufdest2 = NULL;
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static int acnt = 512;% r# t/ \8 y+ ?
static int bcnt = 8;' }& q9 L0 E# g! V
static int ccnt = 8;1 n+ l9 L' {) @; r( S
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module_param(acnt, int, S_IRUGO);3 e) ~8 h+ [2 {6 X* `4 K
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