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' h, Z6 _% B b7 d
/*
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* edma_test.c
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** ^7 E7 y* C) V% C" u: \1 g' T
* brief EDMA3 Test Application! D4 @, `' D4 n ^' Q. R
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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; D4 y" o! {( r6 b1 w
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.3 y5 [& n: F6 F$ E6 |* I1 r* k5 D
*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/0 ^9 @7 A- d' D
*! x! s$ X9 s' I4 m; p0 u
* This program is free software; you can redistribute it and/or3 K& c, v4 b4 J6 _9 z$ D* P
* modify it under the terms of the GNU General Public License as; U' F& x. n: Q2 `: ^( f) E
* published by the Free Software Foundation version 2.
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any9 [% Y) h) X. J: I. \& T& Z
* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.) ^, G( |& z5 D4 q, W2 s
*/
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#include <linux/module.h>" v+ f8 Z; N" M% M* z! a
#include <linux/init.h># x" N8 H7 y. o
#include <linux/errno.h>
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#include <linux/types.h>! }$ G9 v" e m9 _
#include <linux/interrupt.h>
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#include <asm/io.h>
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#include <linux/moduleparam.h>
#include <linux/sysctl.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h>
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#include <mach/memory.h>
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#include <mach/hardware.h># d4 I8 Z0 Q6 D; Y% }7 Z
#include <mach/irqs.h>& z! w5 E# {0 d9 b& a$ H/ [
#include <asm/hardware/edma.h>) Y' F, j9 T' E# N5 h6 ~
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#undef EDMA3_DEBUG4 Q1 z& y+ b5 x/ k9 K1 \8 |
/*#define EDMA3_DEBUG*/# h s* }7 R5 \: L- G% M% c5 _/ d
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#ifdef EDMA3_DEBUG! t, c! a5 R: P, i" j( s
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)- X* j* j. b1 i! t9 R/ e( T) u
#define DMA_FN_IN printk(KERN_INFO "[%s]: start\n", __FUNCTION__)
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#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)7 h: x6 u' f! o+ O# w1 H- Y) L! n6 f7 i
#else+ i; ?& d' m9 Q& s. y. R: s# A8 s
#define DMA_PRINTK( x... ). {* R; l2 T; R. o
#define DMA_FN_IN+ I; C. C/ ~3 M: A( X
#define DMA_FN_OUT
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#endif! W8 i5 _. e/ O. C; e' c
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)( ]9 X- W: q1 t0 m* v( j+ W5 g3 d
#define STATIC_SHIFT 3: F E \/ J- v
#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 21% U, k/ Z9 e9 T5 I- @4 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;
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);5 k/ V4 Z& M |2 d/ d0 J
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);: k) t7 t8 ?/ d- D
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);1 T+ o2 C0 S' n
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dma_addr_t dmaphyssrc1 = 0;" p4 i# V, l7 G. D
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;& u! q" q+ J4 y& o1 X
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char *dmabufsrc1 = NULL;9 r' }% c. F2 j4 r
char *dmabufsrc2 = NULL;. f8 n; }! R; x+ l
char *dmabufdest1 = NULL;0 f1 ?5 R( m) x! k
char *dmabufdest2 = NULL;$ K% h0 q& H4 `3 b0 t X/ D
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static int acnt = 512; m- r; i" ^2 Q
static int bcnt = 8;8 Q3 T% O7 [9 s4 P4 o1 _
static int ccnt = 8;% Q) Q! `* G. H2 B3 C
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);! o# ]+ M& s0 a1 X8 z
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