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 ]% p4 b* V' }/ N. F7 v, w4 B
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* edma_test.c6 y9 y1 C- y' Z# z7 [- b9 p$ T
*
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* brief EDMA3 Test Application6 C1 i: x7 }( T; G- r
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* This file contains EDMA3 Test code.; s2 J& w2 e! A, @: d7 N
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE) P! Q k; E4 g% q1 ^8 [
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT2 O& B0 d6 }; t b8 n) H' m
* TO CHANGE.$ N9 m& E7 u0 C! }% j, k5 o
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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*
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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) |0 Z* S+ b; L; r: @" Y4 m
* published by the Free Software Foundation version 2.; p# o8 [1 y9 o+ V
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the! p8 S5 f9 s$ a' F1 \( g u, F
* GNU General Public License for more details.# `+ u3 r1 o" x: E+ V/ F0 T9 ?
*/
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#include <linux/module.h>9 m& S7 O2 _+ y/ y
#include <linux/init.h>
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#include <linux/errno.h>' y% {" n- o( X$ u6 W4 Z: t7 Y
#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <asm/io.h>' X# @/ U6 k1 ]* s" B0 s6 S
#include <linux/moduleparam.h>
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#include <linux/sysctl.h>% I# [7 E; q* q4 C- g1 U
#include <linux/mm.h>
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#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>( w4 E- V* ?6 V! T2 o6 x2 N
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#undef EDMA3_DEBUG) y# N [& R) H: g
/*#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)
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#define DMA_FN_IN printk(KERN_INFO "[%s]: start\n", __FUNCTION__)+ G! ]1 `2 h" x& }2 P- C/ Z* X
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else/ b, Y0 Z4 N3 M/ J/ x
#define DMA_PRINTK( x... )- o) D3 t* K3 M( C& o5 l
#define DMA_FN_IN
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#define DMA_FN_OUT
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#endif2 u A5 G' e! O4 Q0 U
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)0 n; y7 i: R' n9 x+ F& K" j5 @) @# h
#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
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# e: p9 s$ [) R: q k) m0 X/ P
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);
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int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);) T9 c) W5 Y" J9 R3 Z9 {' A
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;# z. q9 j4 _ m2 ~
dma_addr_t dmaphyssrc2 = 0;) d% A/ a9 }4 X8 `% g F
dma_addr_t dmaphysdest1 = 0;0 n9 y: \& q7 U; Z. K; g' B
dma_addr_t dmaphysdest2 = 0;. z1 a% i: O* }; ]
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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;) n; c1 Q7 M( t1 {! A; P$ s1 a
static int bcnt = 8;
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static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);2 Z* ^# }0 [7 i5 ^) ]
module_param(bcnt, int, S_IRUGO);; l; J m0 W4 ?) r) P3 y& B# _
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