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' D3 c, w6 {' S0 Z F$ ~) d1 P
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* edma_test.c
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* brief EDMA3 Test Application
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*
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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 BE8 ]6 b6 K' O# s* v4 H2 E
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/3 ?8 _6 T! r2 J5 A
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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 C- Q2 W, a' e9 u$ x% w/ l K3 Q
* published by the Free Software Foundation version 2.5 y* W& u1 G5 V0 H
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any$ U. {: l5 _) e' \2 \# h
* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the3 L- L( v6 ?! P3 s: N7 J
* GNU General Public License for more details.# T6 e+ A0 h. h5 w8 m3 V- f( c
*/
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#include <linux/module.h>$ \$ k$ r) ]1 i& a9 R6 B, Q5 m
#include <linux/init.h>
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#include <linux/errno.h>( A8 ^' @6 M! N) N5 \
#include <linux/types.h>
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#include <linux/interrupt.h>) J) y* X% \ C
#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 C( ?4 Q7 m3 T2 ?3 D( s' T
#include <linux/dma-mapping.h>' w M& C2 G5 P4 ?5 s
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#include <mach/memory.h>: Y5 J# D. _3 @: ?8 \3 N4 e$ s
#include <mach/hardware.h>; O" _0 s' k6 }: J
#include <mach/irqs.h>
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#include <asm/hardware/edma.h>* }( ~; T: V: a" L6 H W; {& `/ ~) i
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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)5 @0 M9 j& }+ ~) H" b+ l
#define DMA_FN_IN printk(KERN_INFO "[%s]: start\n", __FUNCTION__)( ^# y# [8 a' \9 o
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)1 U. X. C s% Z' L) L
#else
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#define DMA_PRINTK( x... )
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#define DMA_FN_IN
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#define DMA_FN_OUT, C9 J- x3 v4 b4 w6 s5 D' N% T
#endif. G9 @% S$ @* t9 E- }
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)& }+ h. F |0 t& p- w; G6 Y
#define STATIC_SHIFT 3 R2 R* k4 [( ^* Y4 D! ~
#define TCINTEN_SHIFT 20: L0 C0 ?' k- X6 A0 g( D4 Y) R
#define ITCINTEN_SHIFT 21) h% k' u% \. v( F4 g6 S0 c
#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 23- k8 |+ k) S6 [# Y7 N v' p+ p4 _1 s
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static volatile int irqraised1 = 0;. U: i1 @( c2 h: @3 b
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);
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int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);+ v3 b- F& J/ Z, R2 N$ @
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);/ A7 J( g2 M" e/ X; b8 C
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dma_addr_t dmaphyssrc1 = 0;
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dma_addr_t dmaphyssrc2 = 0;5 v8 [2 V! U0 r) b
dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;3 z! t5 a/ n6 O( \* F9 L( S
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char *dmabufsrc1 = NULL;4 T2 g7 B8 G2 P9 U
char *dmabufsrc2 = NULL;
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char *dmabufdest1 = NULL; O$ W2 R" c9 L7 ~. F
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;
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);) Y, x7 }. Z) W7 Z8 x
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