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 application2 U. t X# P8 ^$ Z! L$ |
/*# D- S/ W- m' \7 F
* edma_test.c
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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 BE
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* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/% C H7 ]) d1 i2 w i
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* This program is free software; you can redistribute it and/or6 ^6 J( j# X% O4 a) |
* 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 any4 D/ g: O( c; D1 `. w: U7 `
* kind, whether express or implied; without even the implied warranty: |' q% B! `" o
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.+ h& h1 L6 f# [
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#include <linux/module.h>+ I1 L" c; o5 K% K
#include <linux/init.h>6 G- Q; M. g" r8 h/ s
#include <linux/errno.h> E' F0 g/ u7 a, C
#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <asm/io.h>$ \' n @, s# r0 Q: x4 F$ o
#include <linux/moduleparam.h>8 b. {* V3 @1 _( Z; q A3 P
#include <linux/sysctl.h>
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#include <linux/mm.h>% s0 e; U, o6 Q) X1 v7 P
#include <linux/dma-mapping.h>
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#include <mach/memory.h>2 _9 e% R# D% O2 ^# |7 V3 d
#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <asm/hardware/edma.h>5 q# {# Y7 S+ {
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/7 ]7 S1 V6 m" [( ^4 l) D
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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__)9 Z6 J' Y0 a" A
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else
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#define DMA_PRINTK( x... )
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#define DMA_FN_IN8 w5 c* ]5 x6 v! w) f9 T
#define DMA_FN_OUT
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#endif3 y* V) R2 d8 I. \
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)( n: U; X+ S# d* X6 G2 F z
#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 21! t( D6 j) V# }$ h
#define TCCHEN_SHIFT 227 w' w1 z, n& f6 ~3 E- ^9 q' h; Y
#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;
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static volatile int irqraised2 = 0;. Z9 p; ], a) r) ?9 j% d, p6 l
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue); K$ `0 w; H/ V) y* [9 u6 F
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);7 `% G' C# M5 G, ]/ b2 j: H4 G- D- _
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);9 q7 [$ X7 s2 E* A
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dma_addr_t dmaphyssrc1 = 0;! ]' ^- k u0 O) [# |0 R2 g+ E- [
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;- `$ c' r& g2 Y, v1 U
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;7 O8 H# d4 G- x3 v: ?' h) N
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static int acnt = 512;9 t+ [1 |! D1 n8 P) b6 ? S
static int bcnt = 8;1 W4 | t/ R2 `& L/ F4 S3 x
static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);5 | S( F7 d, z$ P0 r6 k3 u
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