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 application7 J( k9 O8 Y8 {
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* edma_test.c- W3 W% Q- }4 D i. [
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* brief EDMA3 Test Application. I/ @; O( M2 S" z8 k- Y: k
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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
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* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT3 v" @) G1 |5 k7 r S' D. \: f
* TO CHANGE.- q. r7 r6 E7 H
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/: U L3 N7 e6 R0 h' t' m
*
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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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*2 d1 S! D) e* s$ M
* This program is distributed "as is" WITHOUT ANY WARRANTY of any3 l h; H* a) M8 v/ I
* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the$ Q! X }% Z/ W4 r4 b: n$ `
* GNU General Public License for more details.4 P- Q8 a( c# B' s. a
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/errno.h>$ D5 [5 R3 r" o
#include <linux/types.h>4 d, v: M6 \# q" W7 p$ z, D' k4 F3 w
#include <linux/interrupt.h>' H3 w! I6 j) N* F- ^
#include <asm/io.h>2 l( s% C; _& o; [5 Z# E
#include <linux/moduleparam.h>3 j W" ]' _, C4 Z: o& A
#include <linux/sysctl.h>! a/ s; ]/ s- k
#include <linux/mm.h>% `8 J0 K# \0 @! i1 a
#include <linux/dma-mapping.h># T' s, x, d6 L$ U0 R7 v
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#include <mach/memory.h>& k Y; C4 E5 w
#include <mach/hardware.h>; u4 g5 |* }% y
#include <mach/irqs.h>
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#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG' f/ B8 U5 R. C1 f( ]& v6 O
/*#define EDMA3_DEBUG*// y: f% u5 m0 V; g5 M0 M
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#ifdef EDMA3_DEBUG
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#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__): ]6 V6 C" E2 N/ Y/ b( S/ u% z
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)- M( H- l5 ^8 R3 S t1 U% P$ [; V
#else1 S4 h9 D+ A) ~
#define DMA_PRINTK( x... )& X* V1 s2 t( F3 u% K2 D; O* L
#define DMA_FN_IN
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#define DMA_FN_OUT
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#endif+ J9 `9 e) P3 M6 @/ o
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#define MAX_DMA_TRANSFER_IN_BYTES (32768). H2 K; t5 h; b( }! ~0 X7 Z( o
#define STATIC_SHIFT 3$ _4 x9 X, C% t, T( o
#define TCINTEN_SHIFT 205 w7 @( y4 E! `$ m( m" w
#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;" }2 I, q1 S+ g5 U6 G7 D- Q
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);
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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);5 C$ Z0 I& r/ _: o5 a1 z
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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;
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;
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char *dmabufdest2 = NULL;
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static int acnt = 512;2 T7 l9 l# K0 v! n
static int bcnt = 8;
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static int ccnt = 8;7 c; ~" G! W3 u/ E: W o3 L0 {* x7 C
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);* l' H9 t0 G2 T$ _; P
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