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 application0 M) b9 t) K( \ e3 E4 A
/*
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* edma_test.c( t) l, Z8 s! r# A' D: j3 M
*
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* brief EDMA3 Test Application5 F6 Y9 t+ M5 \/ q, _4 `
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* This file contains EDMA3 Test code./ T) F) h# r/ `+ f4 `5 c# H- q+ y/ s
*
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE8 W& @4 f. A# N( B4 B: c9 l
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE., x9 ~1 n7 P1 T, M7 f- _
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or7 K5 U! [! W |0 E4 S: Q
* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.* Z" ~- n- }0 X6 f; w
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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
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>5 R0 Y/ v2 @6 ^9 `' d+ u
#include <linux/init.h>
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#include <linux/errno.h>7 n. Q/ j1 @5 p. q) J6 e8 a7 z
#include <linux/types.h>, ]: k3 B4 Q2 y- x7 K! l9 S$ W* n' ?
#include <linux/interrupt.h>2 M1 ^, x7 j5 N H/ c7 C2 V
#include <asm/io.h>
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#include <linux/moduleparam.h>
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#include <linux/sysctl.h>6 A) M7 ^% h7 l- o* p: Q4 S& i
#include <linux/mm.h>& l I2 p& i* a( |
#include <linux/dma-mapping.h>
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#include <mach/memory.h>3 Y+ Z! S z+ m
#include <mach/hardware.h>
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#include <mach/irqs.h>3 G S* z; s3 B1 v
#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/8 G7 C. \: ^0 @3 C
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#ifdef EDMA3_DEBUG* Q8 V9 C1 n# ]! M8 Q% O0 h
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS). n) R" l, m9 H/ m- D" @
#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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#else. ^/ S; z5 m7 u* }" V" |
#define DMA_PRINTK( x... )8 I2 ^% E% { n7 C
#define DMA_FN_IN1 O; ~5 m+ T' S0 o
#define DMA_FN_OUT, N. D9 z5 E s
#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)1 u4 ~3 k/ L- J5 \
#define STATIC_SHIFT 3- U' A7 Q: R5 \0 s( b
#define TCINTEN_SHIFT 20, w, i0 ~7 F' a8 ~7 B1 {. u
#define ITCINTEN_SHIFT 21) V) B, k+ r; n( C6 `2 _
#define TCCHEN_SHIFT 22/ A& j( |* d1 |7 D8 A
#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;
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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);5 O) T6 e0 \& ^. r
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);
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dma_addr_t dmaphyssrc1 = 0;
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dma_addr_t dmaphyssrc2 = 0;+ s( u+ D- _. T8 A( I1 N
dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;/ D% l2 d8 [: Y: \9 ]- h* n
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char *dmabufsrc1 = NULL;9 Q0 `& K" ~# k4 ~3 Z
char *dmabufsrc2 = NULL;& L" R' z! I, m3 m: i
char *dmabufdest1 = NULL;, |9 \: Q# a9 K4 S$ ^" c
char *dmabufdest2 = NULL;
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static int acnt = 512;
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static int bcnt = 8;1 l( [& f) b. z3 t' y; J
static int ccnt = 8;4 u1 i3 r0 `4 Z) J0 J7 t0 I
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);& X* k4 W( P3 `8 L9 F7 [
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