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 application3 b' F) \& j) M- K- z3 u# V
/*
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* edma_test.c
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* brief EDMA3 Test Application
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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 BE
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* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.2 F2 @6 \ s1 g6 C3 r
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/4 ~( w$ O% x0 q0 z/ b/ r/ K
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* This program is free software; you can redistribute it and/or0 d& x2 N9 U, z' J
* 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" o$ C$ `' k6 L+ k( {/ [+ R
* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the! [% S! A1 A, K: K9 v4 c$ N. l
* GNU General Public License for more details.
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#include <linux/module.h>
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#include <linux/init.h>) p$ x( z, |( Q( P+ k7 V7 }
#include <linux/errno.h>5 I5 F& [" F! J+ O; f1 S# {7 p
#include <linux/types.h>( ]# k+ i2 P; ?9 a9 Y( ?
#include <linux/interrupt.h>9 V" q% x/ s+ w
#include <asm/io.h>, P: `0 q" I5 c. y
#include <linux/moduleparam.h>1 T7 z4 Y8 X+ V) X) A6 g7 W
#include <linux/sysctl.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h>3 k4 ?: \9 [2 [" ^! }* q; o" K/ g
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#include <mach/memory.h>
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#include <mach/hardware.h># J6 ^5 M( i1 a2 ]
#include <mach/irqs.h>8 U3 L9 a* |8 B; V- e
#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG2 v0 a& P) I) E' x3 U% q2 s# v# Q9 v
#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__)+ h* g ]2 ~5 l$ m" y2 F: j% b
#else- E l" N. O1 |# E7 ?& e9 q
#define DMA_PRINTK( x... )* S+ ^! c% H5 Z( b1 |$ _
#define DMA_FN_IN7 c3 p3 R, i( i s7 u
#define DMA_FN_OUT0 G6 p8 B h; T+ R2 I" Z P' Y) S3 P
#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)
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#define STATIC_SHIFT 32 @: w9 B7 K; ^
#define TCINTEN_SHIFT 204 @# |' K4 i( A! ~9 z
#define ITCINTEN_SHIFT 218 b! k3 g, v7 Q1 |
#define TCCHEN_SHIFT 22) ?: `9 P8 V3 E, o" G% v
#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;; h4 F0 j1 }( |! {, n( U; x
static volatile int irqraised2 = 0;$ B4 [; u: N- |2 k
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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);
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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;) U! b" b# d+ ?4 f9 X* r
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;% Z! \8 @1 Q6 `+ [" _9 F d }
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;
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char *dmabufdest1 = NULL;9 |# |8 Y$ j6 O' I" H
char *dmabufdest2 = NULL;
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static int acnt = 512;
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static int bcnt = 8;
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static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);
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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