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/ ?/ o2 B$ T3 r4 s5 ]+ \ s
/*
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* edma_test.c, U& r; q2 `2 u
*3 A. @% i9 }( p0 P3 e. W
* brief EDMA3 Test Application, C8 j' ~$ H4 K! {3 o- X
*
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* This file contains EDMA3 Test code. g9 b! r* [: F) ]/ `. U
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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+ ] \. s1 \7 r: A0 P% U
* TO CHANGE.' @" h& l! V: K. s: N: j
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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* This program is free software; you can redistribute it and/or$ i9 d5 q }' z& U
* modify it under the terms of the GNU General Public License as( ^7 x* S+ H! s \/ [: T. Y+ g
* 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 any8 m$ h8 F1 E" W& O
* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the5 j6 t; K# u* D% ~. F$ [
* GNU General Public License for more details.
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*/" h. t6 a5 @* Z6 Y) q6 k; e# d
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#include <linux/module.h>' }# g7 x" J* A* h& A* g
#include <linux/init.h>
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#include <linux/errno.h>: H7 _7 ~ x# |5 g. o. J
#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <asm/io.h>7 g% T9 {4 U4 ]: Z4 ^/ ~
#include <linux/moduleparam.h>% N: E( J+ N3 u1 l5 y+ H2 Q1 m. j( T7 ^
#include <linux/sysctl.h>+ r. a- W6 \ ]3 v5 ], O( _" {
#include <linux/mm.h>
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#include <linux/dma-mapping.h>
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#include <mach/memory.h>* S4 @) U$ Q. N2 K
#include <mach/hardware.h>. o" z' @! Y/ V+ z
#include <mach/irqs.h># b; A& ^. M) m9 ^7 \
#include <asm/hardware/edma.h>* `" D) o p: z# B7 R
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#undef EDMA3_DEBUG4 C+ n* [ i0 q7 }9 h/ ^2 I
/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG3 a7 H6 C4 Z. H4 s( n$ @
#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__), T3 r# F- A$ E. R7 f
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else
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#define DMA_PRINTK( x... ); A7 H, t1 u6 K I
#define DMA_FN_IN
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#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 33 M# h4 Z9 a. t& b5 V5 n. w
#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;
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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);* U- ~2 @1 S T6 s. G+ F! X( ]3 P
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);! B; C& F4 G4 I& y/ Q: E
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;
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dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;! d$ j7 O7 r5 A" s8 P! h7 s. }
dma_addr_t dmaphysdest2 = 0;$ i8 H6 a: V: ] r" p! t
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char *dmabufsrc1 = NULL;8 T' s) ]+ Y: L* q0 d
char *dmabufsrc2 = NULL;2 i/ W: P/ }3 n
char *dmabufdest1 = NULL; p/ m# d" p$ y% r5 h/ [- s5 u
char *dmabufdest2 = NULL;! m- ]* H1 W) _" f! S; B
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static int acnt = 512;& v4 m4 ?) @; y! G) p4 _ Z4 t4 l
static int bcnt = 8;5 w$ R' K7 h* k9 M* V3 L0 p$ @7 B
static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);; R6 H3 R1 _: r1 V+ d8 M s# b
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