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 application6 q \4 k3 U }- }$ u- ^
/*
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* edma_test.c
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*; X' D9 A# c3 m' Y2 ]! k3 E
* brief EDMA3 Test Application+ L8 C( y# v2 n& u9 ]& Q
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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 BE: e- }: a' t( ~, _! v
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.& @# B" \ z7 r, D( O# Z
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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$ T1 N+ R" d+ `5 z1 l; m6 o8 C' M
* modify it under the terms of the GNU General Public License as% t/ l0 M( `( V, q/ e: S" K
* published by the Free Software Foundation version 2. k5 a/ R9 \8 W1 F
*
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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 warranty3 u) _# V% A3 h& S4 J
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the# n) ?0 D4 P! F- C4 [
* GNU General Public License for more details.
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*/
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#include <linux/module.h>$ D; u8 d0 p3 k g3 z& }
#include <linux/init.h>
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#include <linux/errno.h>- \3 h& E5 M' k3 R( c
#include <linux/types.h>8 G6 q5 I5 Q7 a! p. x0 Q" w7 K
#include <linux/interrupt.h>3 g7 k: c* I, q* h
#include <asm/io.h>
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#include <linux/moduleparam.h>5 R8 V! `6 ~) K" K4 Y- y
#include <linux/sysctl.h>
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#include <linux/mm.h>) r8 |1 @$ E2 T) D; H/ @
#include <linux/dma-mapping.h>/ {) O9 Y, j: L2 h. ^; n
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#include <mach/memory.h>
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#include <mach/hardware.h>
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#include <mach/irqs.h>" ~2 W/ \3 Z4 L5 f; k
#include <asm/hardware/edma.h>9 Z0 y9 H4 g2 n+ t! b _
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG8 c% g$ C1 C& _2 n# A! U1 c) Q
#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__)$ K% m. a& G- u2 R3 v( k8 d. m
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)( M) Z' u: W5 _
#else; _4 w# c: Z' y- W2 q6 H
#define DMA_PRINTK( x... )( s0 q$ G6 ?5 h2 q8 c5 j
#define DMA_FN_IN4 d7 ^& t$ H& ~6 R8 o( D
#define DMA_FN_OUT
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#endif: `7 f) l7 W% N% k/ i A+ F
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)5 |: J; V# g2 ?/ t( \
#define STATIC_SHIFT 3, m* ]/ \( m. u
#define TCINTEN_SHIFT 20- q4 v. q. k+ Y" X+ c. }* u" X( o
#define ITCINTEN_SHIFT 21 a6 _9 A3 g. C# m7 z$ E `
#define TCCHEN_SHIFT 22; p! o" O1 c$ [+ F
#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;0 w4 C8 B% \, Y3 m2 |: {
static volatile int irqraised2 = 0;# q6 J% U; O4 v3 R( B
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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);# u6 v1 p% L& O1 c5 n! t8 { ^
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dma_addr_t dmaphyssrc1 = 0;0 c1 ]5 [' U5 z
dma_addr_t dmaphyssrc2 = 0;4 U( m5 a0 Z1 k& {, w! t
dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;
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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;/ k; a [+ v2 f3 n# U, p
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