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 application
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/*
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* edma_test.c6 z5 j* s/ W+ o: D$ y0 {1 e8 T
*
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* brief EDMA3 Test Application O: a) [; Z% M: O" p! S1 C* Q$ j/ W
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* This file contains EDMA3 Test code.3 r, s9 W* D9 v
*
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE" `- T4 |+ d" b8 j+ Z
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT4 L! W* M6 B( o& K
* TO CHANGE.( e( p" n/ V$ _9 I. V7 i, r
*
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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) n& q# G5 a% x! }: h4 `# X
* 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- U1 K, l% P- _
* kind, whether express or implied; without even the implied warranty% \. C; p# K& s9 _) C
* 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>0 C& @, Y& ?; B' S# Y
#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/types.h>" U3 N$ @9 [; E6 ?1 }' E
#include <linux/interrupt.h>2 d: g; Y/ v) {, `3 z
#include <asm/io.h>
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#include <linux/moduleparam.h>
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#include <linux/sysctl.h>0 d2 d; H( V& _& x
#include <linux/mm.h>( [/ U) Y6 h: C! k4 Q9 C
#include <linux/dma-mapping.h>
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#include <mach/memory.h>% Q1 p: K8 d' {, L: k; z m
#include <mach/hardware.h>5 i7 d2 F9 c/ `% e
#include <mach/irqs.h>( t. q: n2 ]' P# }( z% J( E
#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG9 U! F5 p3 Y/ z# b* O) t7 v
/*#define EDMA3_DEBUG*/, A) l0 x3 D E" K& v" e/ f8 Y
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#ifdef EDMA3_DEBUG6 W9 \) Y" ~) B5 k8 \$ u
#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__)# N) e. \! ]& N1 f) o
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else2 P9 B& a! z: s$ i
#define DMA_PRINTK( x... )7 A9 \6 o7 n1 W3 {2 Z8 K- f
#define DMA_FN_IN! X b: t! R% A4 {& b( b. a k- K
#define DMA_FN_OUT9 C6 r7 P- u6 ]! j
#endif$ w0 }) L' h6 D: k- n# y5 r
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)5 b4 Y7 h7 _; s/ y9 d
#define STATIC_SHIFT 3: ?$ w N; z/ L% ?8 V
#define TCINTEN_SHIFT 20" g( \+ I: _4 E- H* W; |6 y% \/ J
#define ITCINTEN_SHIFT 218 x9 t- |1 e0 t+ ]& ?
#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 232 J4 ^1 c5 l L0 `' Z6 M1 `: Y
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static volatile int irqraised1 = 0;5 Z5 N7 C8 H, \/ f% H
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);+ W2 x8 R( p( n$ O- J. a) v/ D3 [
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;
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dma_addr_t dmaphyssrc2 = 0;, K5 n3 }* g; y
dma_addr_t dmaphysdest1 = 0;( b1 g$ e- Y4 q6 v+ a
dma_addr_t dmaphysdest2 = 0;1 o0 Y+ M5 N4 `' R1 A+ f
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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;8 R6 l, ?9 K r
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