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# D! S' }$ l( \ y: j) y
/*6 a1 W. T- H" H# J7 e& N
* edma_test.c7 J: G2 ^% M8 A* L" v
* W/ ^& q1 u/ S/ h6 g! h. P
* brief EDMA3 Test Application' a' y* y0 [) L: o! B3 ? t
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* This file contains EDMA3 Test code.. O8 y" L, q X
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE5 {/ H2 [% Y: f* ^' d
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.+ e' z1 \* O& l; B2 H- ]: i& z4 ^' Y
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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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.) f) ~5 `4 o$ k" g$ z' ?7 ?5 P
*" P. T$ [3 K- W4 r0 X# L
* 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' w1 c! C( b1 K
* GNU General Public License for more details.. a% g: Q/ Z: \$ s# F/ f
*/
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#include <linux/module.h>9 }6 V! V: ?0 m) C( v, @: O f% e
#include <linux/init.h>
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#include <linux/errno.h>( U2 K' s9 t+ z' {
#include <linux/types.h>0 l8 |) e9 t1 ^0 j' l, l \5 q% I7 L
#include <linux/interrupt.h>
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#include <asm/io.h># D6 n! B0 `! ^0 |
#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>
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#include <mach/hardware.h>+ Q# v0 y) ~, a6 G
#include <mach/irqs.h>
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#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/
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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__)
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#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)/ B0 G+ |# l, k0 E2 n2 d& q- m+ |
#else% ^! V& P. i' ^2 }9 y4 L: `
#define DMA_PRINTK( x... )" s# N8 V3 r( @7 X4 \+ f2 u
#define DMA_FN_IN
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#define DMA_FN_OUT4 s( k$ X' i8 a* c8 I9 w @* F
#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 200 i7 [3 h) o% j* f! t
#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 236 g+ E* z2 \7 Q( f
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static volatile int irqraised1 = 0;1 p+ s! T2 y8 H9 p4 o
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);6 }9 ]- q4 ?( i& {
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);7 j e8 b; d* l* Q
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);+ R- R/ [) x: D2 I$ i, O
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dma_addr_t dmaphyssrc1 = 0;) X. r4 e+ n h( e. ]
dma_addr_t dmaphyssrc2 = 0;4 A% Z5 L+ o6 {
dma_addr_t dmaphysdest1 = 0;9 A. e V$ T8 ~- C
dma_addr_t dmaphysdest2 = 0;- A6 M# `5 Y+ f
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;$ e g+ k! ?" O, G2 M& t$ W& P
char *dmabufdest1 = NULL;* s4 _$ D, d3 A
char *dmabufdest2 = NULL;
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static int acnt = 512;
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static int bcnt = 8;. F* a& e E4 `1 q: d5 W; S
static int ccnt = 8;% f( S& G$ `( V, C$ |* j8 V2 F
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module_param(acnt, int, S_IRUGO);- I) X5 O' O2 c0 F/ E
module_param(bcnt, int, S_IRUGO);4 [' |: e. D J* m# p/ L
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