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 application8 w/ s% g, s9 t4 a. _( f) V. r3 J2 |
/*
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* edma_test.c H' S. s P! E2 n8 y* {' m
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* brief EDMA3 Test Application# V0 {) W" ?; w3 p; U1 l$ h
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* This file contains EDMA3 Test code.- K3 g2 r0 X- j/ t6 G. W: ]- \: s. k
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE# s, \7 _, ^' d, J1 ^
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT R+ { J6 A5 o0 J- A! F# s! U0 _
* TO CHANGE.7 u) y% E# W3 `2 N' `
*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/) S9 g) D. V8 c: D y" D' M
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* This program is free software; you can redistribute it and/or6 M% ^) E! X4 }' }; C2 Q& g$ W0 L& f
* modify it under the terms of the GNU General Public License as
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* 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
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* 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.
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/types.h>- X! M. \! @& p8 [ \% R7 k8 K9 e
#include <linux/interrupt.h>0 a# m- e, y3 X& \
#include <asm/io.h>
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#include <linux/moduleparam.h>6 @2 ?8 _: }' h, D, m2 ^) r: Y
#include <linux/sysctl.h>
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#include <linux/mm.h>
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#include <linux/dma-mapping.h> @9 l& G; i" X' U
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#include <mach/memory.h>7 \; {0 B2 F7 e/ y7 Y5 \
#include <mach/hardware.h>; ~. U# S3 ]4 t4 J
#include <mach/irqs.h>- ]; g* U; C- P" P% @0 J8 d- t
#include <asm/hardware/edma.h>% _. S9 L: J) [, Y4 E
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/
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#ifdef EDMA3_DEBUG( a6 T& a/ p9 ^
#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__)
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#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else
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#define DMA_PRINTK( x... )
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#define DMA_FN_IN2 {0 n$ q: I: s2 w: l& M
#define DMA_FN_OUT* j. U6 {; n* G( Z; y! g/ T
#endif$ t8 _9 L ]0 Q$ Q8 r
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)
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#define STATIC_SHIFT 3- X% u; x2 j& U) n* b1 i, [7 b
#define TCINTEN_SHIFT 203 T! a* Q$ `( s7 E% }& l/ R
#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 23, k M: O( T& W: n j' B
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static volatile int irqraised1 = 0;* {* X! P/ z) n- O1 [
static volatile int irqraised2 = 0;- B' p" e3 X; t3 C# i
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);+ H) M4 S! L! v% o, E
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);
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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;9 W$ X j# W! f2 P! }5 y% f
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;7 J$ _6 L$ J6 A! _, b4 | p/ ^9 s+ Y0 s
char *dmabufdest2 = NULL;! G/ \5 m. z# m, E1 i+ v6 v' \6 b$ E
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static int acnt = 512;
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static int bcnt = 8;
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static int ccnt = 8;. S$ n8 o9 M. {* A
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module_param(acnt, int, S_IRUGO);4 O# K8 h, y- ]* M1 J* D
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