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 application4 y2 d/ }2 V; h3 x! o1 s) C0 {# p3 }
/*
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* edma_test.c7 ~1 B0 v7 T6 V' }/ I+ `
*
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* brief EDMA3 Test Application; i1 h/ H+ O m- V3 z
*
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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 BE7 D4 k0 b8 g7 K" ~$ m6 u# W
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.
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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/or2 N. G' w, q) i6 n& ~8 U5 U
* modify it under the terms of the GNU General Public License as2 G# N4 M2 j( Y5 j$ G% s9 v
* published by the Free Software Foundation version 2.: H$ T; ^- E4 _" L* \
*
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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 warranty8 e9 {. A5 z, S( H
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the; u4 I1 k" H5 E6 l: c" S# b6 V8 @( Q
* GNU General Public License for more details.* C+ x6 {- b, @5 o
*/
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#include <linux/module.h>
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#include <linux/init.h>9 |1 j4 j* c4 q# U- ^' p, z
#include <linux/errno.h>
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#include <linux/types.h>: s5 Z/ r& U) s6 @
#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>
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#include <linux/dma-mapping.h>$ I4 D* P0 x$ B& L- G* F
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#include <mach/memory.h>
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#include <mach/hardware.h># l- G" z1 T* m! P# p6 z/ x
#include <mach/irqs.h>' C' R0 ?% S a7 e
#include <asm/hardware/edma.h>5 _2 s7 e1 {. \4 F* x
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/7 \3 m1 k$ n. |& d; j
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#ifdef EDMA3_DEBUG. ~1 K2 [4 v% G0 `9 B; ~1 M
#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__)+ }! a" e: A3 S' V+ a
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)" b: o' I7 {: s, C! P) y/ k
#else
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#define DMA_PRINTK( x... )- q. I7 W* h1 P7 b$ g
#define DMA_FN_IN& a; {3 V' M4 @6 {5 R9 c
#define DMA_FN_OUT, k/ E+ P& D# M% y$ w" ^; O
#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768); P/ w4 u- S/ M2 z4 q/ j- q
#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 20
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#define ITCINTEN_SHIFT 21 O' Z" c. x7 t8 m* d* B
#define TCCHEN_SHIFT 22, x9 k. r) p/ O% ^; T* j
#define ITCCHEN_SHIFT 23# J! x) n% @; D0 \ e0 T
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static volatile int irqraised1 = 0;1 c/ L, |1 a. \( x: q+ G, L
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);' z9 t3 ^- V/ }( P2 h/ i- P
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);9 u( U1 t# P9 s) j
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;4 f9 y* ] ]/ s6 e3 r6 Q
dma_addr_t dmaphyssrc2 = 0; Z0 z" H4 Y2 j$ B- L: C) i5 ], e
dma_addr_t dmaphysdest1 = 0;3 R7 S6 a0 p6 e3 d3 S
dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;% n* {5 \6 i F8 l- G, @+ H/ X& ?
char *dmabufdest1 = NULL;8 {3 t: p9 [. v8 @) c
char *dmabufdest2 = NULL;* h) ?5 i6 A6 X4 l# I
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static int acnt = 512;, ], [2 E! _" h7 ^ _2 h# H
static int bcnt = 8;6 l- ~( b0 H' R. S: c, F- k0 ~0 f
static int ccnt = 8;
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module_param(acnt, int, S_IRUGO);; h! H1 P5 S* Y- M+ l- a5 q6 J* d
module_param(bcnt, int, S_IRUGO); Z+ q/ X4 v: ?% W8 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