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 application1 B7 [' m4 ^ b, X8 o+ G) y+ u! {
/*
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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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*
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE7 x1 N# B Q) M. y+ \
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.2 V" [' P8 z z% t0 M f( F" {
*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/5 h, L5 R) ?8 U
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* This program is free software; you can redistribute it and/or* |, v, h$ Y V4 x( a0 L. y6 o
* modify it under the terms of the GNU General Public License as4 c0 L) _6 i7 ^8 c: R7 H8 Z7 q: q
* published by the Free Software Foundation version 2.6 j% v( M, N' l
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any2 J* F1 J2 y3 i! B* e. w4 X
* 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>$ o3 X( R+ l% F" V
#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/types.h>7 y/ b% J9 | g$ X
#include <linux/interrupt.h>/ Q. u0 C1 ^, D& \+ ]
#include <asm/io.h> ^3 `, B8 u; y$ T
#include <linux/moduleparam.h>! l: H5 r; Z9 p, G5 r$ [
#include <linux/sysctl.h>
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#include <linux/mm.h>( J2 N0 }" C% j: ?% ^2 D0 {
#include <linux/dma-mapping.h>
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#include <mach/memory.h>
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#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <asm/hardware/edma.h>8 f* K- n# Y* M8 e0 T7 h4 P
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#undef EDMA3_DEBUG: h* A. M- n" s4 H, M1 B: X
/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG
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#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)1 N' g$ |1 D/ P& |4 L5 }8 Z: l
#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__). y5 [3 Y* O4 m+ P- S7 O
#else4 b6 X9 O" X- m3 g+ |
#define DMA_PRINTK( x... )! v# O( `( k M/ _8 e9 G7 s
#define DMA_FN_IN
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#define DMA_FN_OUT
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#endif# v/ u [% `- P% P8 L
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)" \" f" s! J: U& G1 p" H8 F+ C
#define STATIC_SHIFT 36 n1 A4 L2 {( k% V7 }. N: f1 u
#define TCINTEN_SHIFT 205 o3 T* w' O1 d/ F, k/ W
#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 22/ n$ O6 z! @& |* H1 @
#define ITCCHEN_SHIFT 23# Z& M" G. t& [3 [4 v* f1 \% i
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static volatile int irqraised1 = 0;6 \0 ? B0 a, w/ a- P
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);( |7 r: ^9 K$ E# h9 W4 i9 [/ D
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);3 k- x! e) z; a$ `
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);* T# N. A8 e( ]2 `% e* B
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dma_addr_t dmaphyssrc1 = 0;
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dma_addr_t dmaphyssrc2 = 0;6 {# j4 k, E1 g! n$ \9 a( P
dma_addr_t dmaphysdest1 = 0;8 N* \& r; z& _8 \' P) O
dma_addr_t dmaphysdest2 = 0;% ^+ }& P3 ^7 @( ?" W2 X: }
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;
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char *dmabufdest1 = NULL;
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char *dmabufdest2 = NULL;
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static int acnt = 512;
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static int bcnt = 8; K, t: y# p$ Q0 h
static int ccnt = 8;1 K# {5 r6 X5 C
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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