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 application5 t2 \/ h. D5 ~. E; L' _7 M( A9 b
/*
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* edma_test.c
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*
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* brief EDMA3 Test Application
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*
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* This file contains EDMA3 Test code.
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE0 X4 q8 [7 A- y# n$ u% p/ N
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.9 J' I2 e$ Z1 e/ x8 {
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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
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* modify it under the terms of the GNU General Public License as: l: z0 l& \) e* y$ _ o R7 n
* published by the Free Software Foundation version 2.' M$ p8 `1 N6 b: _6 _
*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any( z! i4 r4 F% z' w+ t5 m( V) \
* kind, whether express or implied; without even the implied warranty
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* 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>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>. @: i8 X j" }2 X! M
#include <asm/io.h>$ V7 M5 M7 E# ?
#include <linux/moduleparam.h>
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#include <linux/sysctl.h># E+ E' [' z8 }/ I z7 ~
#include <linux/mm.h>
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#include <linux/dma-mapping.h>, ^8 H; J% f3 ~# h1 i! b1 ?5 {, w
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#include <mach/memory.h>6 e" [+ h8 v' N! i2 j+ a. x* h4 y
#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <asm/hardware/edma.h>4 r% d, o/ |' k- L8 Q, m; `
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#undef EDMA3_DEBUG- ^+ N; V% ~/ f) e/ ?2 N
/*#define EDMA3_DEBUG*/' z4 K% W' e, X4 y: g
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#ifdef EDMA3_DEBUG. F0 ^6 `* w0 F3 P5 R& C8 M
#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__)8 a0 e7 V! @) m6 J
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)' x7 D7 P* [! s
#else) g3 S& A2 e0 |
#define DMA_PRINTK( x... )
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#define DMA_FN_IN- [- p* r$ [3 v" N
#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 3
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#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/ b; p; E' s* |. N. ]
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static volatile int irqraised1 = 0;% Z+ H. {. }+ f/ ]- b, @* |
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);5 v! @$ j$ m2 y& o" M" G8 g
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);6 G- t4 k+ G4 m# {" {
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);7 U) g! g/ M$ G* ]' D/ N
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dma_addr_t dmaphyssrc1 = 0;( v! j4 N8 T9 y) }) X5 f# H$ F
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;3 B, I3 M3 f8 Y3 ^
dma_addr_t dmaphysdest2 = 0;" ?% Q1 L* i2 b; A
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;0 a9 \1 z8 x5 u! g) c, o, C
char *dmabufdest1 = NULL;
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char *dmabufdest2 = NULL;0 s! F3 s& Q2 j1 D4 C' M
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static int acnt = 512;+ N+ K8 c! E$ M8 \, u4 M2 Y$ Q
static int bcnt = 8;8 `. U0 i8 m$ v+ v9 T
static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);$ }" z& u5 X: s& [
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