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 application4 D. O. [0 `& O
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* edma_test.c, V* _ \1 o! u) }0 |
*
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* brief EDMA3 Test Application$ R/ y g6 r$ a r1 p- }# {
*
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* This file contains EDMA3 Test code.' `! C0 c- p6 a
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE8 ^% n# V* d! d7 a" r% y e' p
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT3 v* A* W) b% ?5 l2 p; [
* TO CHANGE.% z& ^2 l6 e' l
*
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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
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* published by the Free Software Foundation version 2.9 }/ q9 k# t, N1 ~+ c
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any' Z4 ~( S% z. k: D, U4 L. l7 j
* kind, whether express or implied; without even the implied warranty* s1 N0 M5 @3 B! b
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details." W. l% g; C$ o* V$ O4 B
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#include <linux/module.h>6 g& Y: o6 I# J. Q# }& F
#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/types.h>, Z* h1 j7 S! p$ Q+ ~' z/ h
#include <linux/interrupt.h>4 H/ F9 Y$ G4 ` z
#include <asm/io.h>
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#include <linux/moduleparam.h>/ u8 _1 z R7 ]' ?0 p( e
#include <linux/sysctl.h>9 x2 G+ N( X/ x2 I0 C8 T0 ~
#include <linux/mm.h>
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#include <linux/dma-mapping.h>$ S5 ]7 D6 o5 X0 |
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#include <mach/memory.h>" r5 I& q- v- f* r K
#include <mach/hardware.h>0 H8 k ^; c& C7 x
#include <mach/irqs.h>% d7 f4 c( L% z% B; H' ^4 W% p. J
#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_DEBUG
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#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)' r3 n' D) e* {2 `* F
#define DMA_FN_IN printk(KERN_INFO "[%s]: start\n", __FUNCTION__)* J r3 p; J- [ B* A4 {
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__); g, v0 }8 \6 D' A' C
#else7 `2 L" y. F7 P5 H* i! A
#define DMA_PRINTK( x... )2 m# t ]+ s3 l) J$ w
#define DMA_FN_IN: s5 j8 b: _5 r. q" Y) X. C9 q
#define DMA_FN_OUT+ M3 `4 g, w( ~6 x: b1 E2 h) S- c9 a
#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)
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#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 20: ~! j# ~5 `; ~+ [
#define ITCINTEN_SHIFT 21
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#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;
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);0 W3 t* S. L- s+ K* z" }
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);$ z$ B& E! U" v
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);* q9 x4 | l- R0 }7 ^
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dma_addr_t dmaphyssrc1 = 0;
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dma_addr_t dmaphyssrc2 = 0;
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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;, F. t: h3 S9 U2 X7 D
char *dmabufdest2 = NULL;) G: j. J' _) k8 ?, G+ j9 w/ M" g* \
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static int acnt = 512;6 ?8 o5 z. Q8 M( L; Z
static int bcnt = 8;5 B! J* G9 l5 d9 ?: l5 O
static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);# ?# _; L& r% A' v: W" `
module_param(bcnt, int, S_IRUGO);, U4 [4 v7 i. L1 K9 q! J# U1 q/ p% g& d# s
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