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$ I$ U) \2 w. T2 I6 f( `8 A
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* edma_test.c
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* brief EDMA3 Test Application/ B0 w3 p) H8 t: Q$ x
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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.' d% n) \3 k/ e D7 k, b `
*
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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
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* modify it under the terms of the GNU General Public License as' ]/ t% ]7 X3 m$ `
* published by the Free Software Foundation version 2.
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any/ }/ ]+ j! @" d v5 R
* kind, whether express or implied; without even the implied warranty+ C2 Y/ r* C8 [- c- U$ m
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.( g" p, o( x" M) _# m6 Z
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#include <linux/module.h>; V. J# M+ K6 B
#include <linux/init.h>& ^9 B# D8 i$ k3 H* z& N2 v
#include <linux/errno.h>5 U; a/ Y. J. Q8 X! I3 I1 K
#include <linux/types.h>/ x7 ^. A% w; S8 _! o
#include <linux/interrupt.h>( N4 z D3 A( } \2 X
#include <asm/io.h>( ]+ {! j# Q/ @' S+ O: M
#include <linux/moduleparam.h>; {/ J" D) l# j, Y7 Z
#include <linux/sysctl.h>
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#include <linux/mm.h>* U8 f( ?- U3 ^: m9 m3 K' b( @
#include <linux/dma-mapping.h>/ D0 ^3 w. P6 ]/ _/ r# m' G
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#include <mach/memory.h>
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#include <mach/hardware.h>' `0 c! P, c, n' r P) B. P0 @4 L3 w
#include <mach/irqs.h>
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#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG8 F' h+ U) f6 f0 L9 y
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)+ a# b1 W. o) Y
#define DMA_FN_IN printk(KERN_INFO "[%s]: start\n", __FUNCTION__)2 \$ g- d6 q& e
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else
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#define DMA_PRINTK( x... )) i% }3 t; W0 K- c
#define DMA_FN_IN+ f, x/ E- |0 @4 y$ H' Z2 ^
#define DMA_FN_OUT7 c8 P: C7 X3 c3 v* _
#endif* }, M% Q( O+ x, h4 j5 F3 t' z
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)
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#define STATIC_SHIFT 3; \/ P* ?) {. w6 Q5 ~; k& L
#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 210 w# E f* ~+ ]3 e
#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;
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static volatile int irqraised2 = 0;2 d) i% W, J- G$ G3 V3 @
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);7 ]4 k) b7 n/ Z- @) n
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);+ X7 a1 B4 Z* A3 v
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);6 M- a& V7 N" h1 J2 s9 V0 t
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dma_addr_t dmaphyssrc1 = 0;
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dma_addr_t dmaphyssrc2 = 0;) u2 M5 Y# g5 G; C9 A# z4 j/ ~
dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;: x' T6 q1 y: U
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char *dmabufsrc1 = NULL;7 m8 J$ a. ~7 s3 d2 v! x. K6 e
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;2 p; U# {* R& ]: L- N; i* J
static int ccnt = 8;7 w* Y W5 `1 l8 w1 \% `
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);7 D0 }$ b4 g+ T: K Z/ R- q
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