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 application6 ~+ p# a" g' h* F: L+ U. G
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* edma_test.c$ R+ ~/ A# ?/ f
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* brief EDMA3 Test Application' k' x% O1 Q9 w+ H
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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 R1 B; P( U& v2 W
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT U7 B; u- k/ H6 V. a2 r: y
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/+ s' i8 O' B" @) T' I# @0 B+ C( W8 V& B Y
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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.
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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; h* D/ b5 f5 @) J# p- R, N1 I* U
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.* B& f8 V$ T/ ^4 o+ K9 k
*/
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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>$ V2 D3 j! A! \5 M/ V/ k/ a! M+ g
#include <linux/interrupt.h>
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#include <asm/io.h>$ ^0 D. T* O9 n
#include <linux/moduleparam.h>
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#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>0 R; S9 k) x/ k/ Q" ?
#include <mach/hardware.h>
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#include <mach/irqs.h>& ]) u+ D3 h4 J' u( s
#include <asm/hardware/edma.h>( C: g" h; j5 }: ?! Q3 j# B z
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#undef EDMA3_DEBUG# ?2 Z" P9 Q' s. G) Q- }
/*#define EDMA3_DEBUG*/7 S( \) ?2 N- B) _% x: C
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#ifdef EDMA3_DEBUG, W3 i6 e! k: G5 h: ?7 s0 J% D
#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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#else9 d7 A& V, ~7 I# c
#define DMA_PRINTK( x... )# Z8 t8 }5 o# G, p) s
#define DMA_FN_IN
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#define DMA_FN_OUT* P4 U5 Q3 [+ D( e& X& b
#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)
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#define STATIC_SHIFT 3/ z" _4 g3 d7 f2 K8 a2 J. }" c0 C" w
#define TCINTEN_SHIFT 20
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#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;% d/ _& \/ n; o, H2 e
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);% S3 f( W, s$ U
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);) M8 R+ X W" l
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dma_addr_t dmaphyssrc1 = 0;& q& i( Z2 C3 Z$ M q- z
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;1 \- l. z. [+ i/ g, s; m
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;: r; @( P8 l0 `0 q
char *dmabufdest1 = NULL;# V: S% b6 ^6 u, T
char *dmabufdest2 = NULL;
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static int acnt = 512;
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static int bcnt = 8;
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static int ccnt = 8;1 s% U5 z7 P, Z' [$ ?
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module_param(acnt, int, S_IRUGO);# L4 s2 T9 A9 m: j
module_param(bcnt, int, S_IRUGO);: p+ H6 e3 |0 D4 W" r1 x* ?' n9 E( h
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