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 p9 B( q' ]3 _5 w! K$ v
/*
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* edma_test.c( v4 c# V q; K$ [6 g( B7 f% h' q
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* brief EDMA3 Test Application( ? K9 @9 R& a2 K1 b1 P# e4 |/ c. i
*
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* This file contains EDMA3 Test code.
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE& p# O/ v# I0 C( i D" v# r
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT' D$ d6 v6 m! c; G4 A- j
* TO CHANGE.
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/$ k- S$ r# L1 R- D
*
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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 as8 i* t0 t; { A o* j5 |
* published by the Free Software Foundation version 2.5 o: M2 i$ E' _0 h
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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) B; \: j' G9 y- C$ `$ @
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.$ W, {, s' ^) j; t# t5 F' ^
*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/errno.h>( L+ m; C' s0 h0 v& {
#include <linux/types.h>* d% s7 t7 M. d4 L
#include <linux/interrupt.h>
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#include <asm/io.h>
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#include <linux/moduleparam.h>
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#include <linux/sysctl.h>
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#include <linux/mm.h>+ s9 j- ]5 k. F* R& |! {0 V9 a" M
#include <linux/dma-mapping.h>
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#include <mach/memory.h># z/ O1 f& [) ~! ~+ f
#include <mach/hardware.h>
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#include <mach/irqs.h>5 _# A6 D3 ^6 O% R7 Y5 I8 {
#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG5 w; ~8 ]% Q4 u+ i2 u8 U
/*#define EDMA3_DEBUG*// W o1 g" D6 O
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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__)4 } D# N" [: b+ ~1 k- k
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)/ Q- I9 N: B6 Q6 g
#else
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#define DMA_PRINTK( x... )/ h7 K1 j; M: y; r- e5 T
#define DMA_FN_IN0 n- T' q6 a- S4 ^
#define DMA_FN_OUT7 U) g* ` R% b7 }+ J$ g( r8 B
#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 205 u- c7 C( e1 J' [. ~
#define ITCINTEN_SHIFT 21/ v, h3 o" n0 m+ c3 }
#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;- n, P8 U6 c" S4 n- z% X
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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);% t1 B; p6 k8 q5 x
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);% Q4 h* \) ~- H$ s5 h4 u
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dma_addr_t dmaphyssrc1 = 0;0 e! S& ]. V( u8 @8 q+ m# y1 v" A- L
dma_addr_t dmaphyssrc2 = 0;
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dma_addr_t dmaphysdest1 = 0;3 ~1 A. U- [; ]- P
dma_addr_t dmaphysdest2 = 0;! Z( {! S& t8 y
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;2 @& z# f7 \5 J2 T4 R7 R: g- D5 W
char *dmabufdest1 = NULL;1 o+ q# p1 B! [* j9 I
char *dmabufdest2 = NULL;
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static int acnt = 512;* M8 r6 ~7 _! s" H% v8 u" ~
static int bcnt = 8;. @+ r! }) d. |- U
static int ccnt = 8;8 U7 A1 u5 Z; g# t6 L
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module_param(acnt, int, S_IRUGO);& Y1 m( Y% ]$ r3 g* m
module_param(bcnt, int, S_IRUGO);6 b2 r) M, D' h2 _. 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