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 o7 |+ H u# R5 ~. u7 G: `
/*
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* edma_test.c, h, N: \4 m7 {" V% m) q; j
*
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* brief EDMA3 Test Application
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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
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* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT$ g. k+ z! ^* @0 i
* TO CHANGE.+ O, {0 q# v7 f+ ] _
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.( |; i. b# B1 z. s
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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+ A4 l) T/ {& m
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the$ O' W6 p y' h
* GNU General Public License for more details.6 a6 N. b+ z7 n4 f- j! l
*/
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#include <linux/module.h>: W0 O* ?* g0 J( r1 r
#include <linux/init.h>
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#include <linux/errno.h>' S8 f! i& h8 x- ]) o. u
#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <asm/io.h>; S* A* J! _* {$ L) h0 J
#include <linux/moduleparam.h>
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#include <linux/sysctl.h>1 r; x7 f$ f* }- L
#include <linux/mm.h>
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#include <linux/dma-mapping.h>
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#include <mach/memory.h>/ ?& U, I) h t$ I7 S8 y
#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <asm/hardware/edma.h>, L' B- C/ n0 N2 F4 Y9 l
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/6 w6 ^$ w8 o. ]# q2 E
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#ifdef EDMA3_DEBUG( I- v4 K; P2 x3 a* p% M
#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__) p& F5 m- b, D+ g. Z
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else
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#define DMA_PRINTK( x... ): ]' Y" {( h+ M2 P/ [
#define DMA_FN_IN
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#define DMA_FN_OUT+ u. v2 M+ F) H, g" |* J
#endif' l9 k! U; r8 W" b) Z7 f. x6 h p' M, L
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)5 E* v7 K+ ?; _% B+ g2 c
#define STATIC_SHIFT 3/ ?+ b1 [/ @6 D0 b4 a" B3 i7 r
#define TCINTEN_SHIFT 207 ^/ S: F( Q) h. k# e- t
#define ITCINTEN_SHIFT 21, c9 W5 }' i. G8 i' t! a3 L
#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 23* ^8 g9 L4 B% l1 E( P: F
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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);8 E+ ]& x% P5 A+ K9 S- A- E: z
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);% L) G' Q. K) B f/ r/ [
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);( b6 ^6 u! Y4 ^* n+ S* R$ H9 ?" c2 \
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dma_addr_t dmaphyssrc1 = 0;% D) j* t, I; O B" p" p9 g5 S
dma_addr_t dmaphyssrc2 = 0;7 m% j& I3 s/ X
dma_addr_t dmaphysdest1 = 0;+ `. l2 Q# ~( A, X6 r0 T
dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL;7 R9 B* H; c# S
char *dmabufsrc2 = NULL;& I9 a2 y# K& d+ u6 S! n
char *dmabufdest1 = NULL;
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char *dmabufdest2 = NULL;
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static int acnt = 512;3 h: C# {: N4 D9 d2 f; L
static int bcnt = 8;
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static int ccnt = 8;3 r: G. U$ I- P4 @; v+ r
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module_param(acnt, int, S_IRUGO);5 l0 v) Y* m3 Y% D% \. t8 e
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