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 F1 U$ w5 Q3 Q0 H2 b
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* edma_test.c9 ]4 ]; h& u9 _: U' Y3 `
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* brief EDMA3 Test Application4 f6 b: \( A) M& G0 [' o
*
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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 BE
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* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.% B# h0 S( H! i+ p
*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/( ^/ o' J/ q3 e) q
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* This program is free software; you can redistribute it and/or7 e7 E) ~& g' V, w9 p' L% R
* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any7 F. }6 b& ?: I5 ?
* kind, whether express or implied; without even the implied warranty7 q# D" R2 t! ?) _: w
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the; B. S @4 l: Y8 K* o! N# v
* GNU General Public License for more details.
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#include <linux/module.h>2 y& C# R: l' U# m
#include <linux/init.h>
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#include <linux/errno.h>: g, L+ ]1 ~# g! q+ X0 i R# B5 r
#include <linux/types.h>' W) U# g1 p; h$ Q* X
#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>+ ~8 r8 i1 A9 ~7 c
#include <linux/mm.h>) U- {: E$ F/ T! `2 O
#include <linux/dma-mapping.h>; n) H: y) F l1 D( G& d
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#include <mach/memory.h>
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#include <mach/hardware.h>3 N- K9 G9 f" Y4 x, i- T; ~3 }6 ?
#include <mach/irqs.h>$ D% I' D3 B1 ^( i& u9 Y
#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG
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/*#define EDMA3_DEBUG*/. f8 f1 e/ X& }) v" L) ?5 h
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#ifdef EDMA3_DEBUG" P& p2 ?$ C# H- o
#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__) Q; n1 }+ ~0 g, |, |: z$ E7 R) O2 G
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else+ @/ J- C I9 M8 m* S$ d
#define DMA_PRINTK( x... )
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#define DMA_FN_IN
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#define DMA_FN_OUT0 ^' ~) P6 u; n% ]8 h- l8 p
#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 20
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#define ITCINTEN_SHIFT 21+ Q7 Z O, A" |' _, l3 `$ l9 [) E
#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 23
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static volatile int irqraised1 = 0;, z8 ?# t7 S* q) j
static volatile int irqraised2 = 0;! K9 d8 D, g" G% J; f
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);/ Y6 v6 C( l8 u
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);; ~5 J, J# C+ G1 ~, }0 H# a- E
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dma_addr_t dmaphyssrc1 = 0;' g6 P f5 Z% I7 \3 o* ~1 C9 [" P
dma_addr_t dmaphyssrc2 = 0;3 ^2 t5 [$ N8 X6 |) l9 ^
dma_addr_t dmaphysdest1 = 0;/ }9 a/ Y" _( F- A
dma_addr_t dmaphysdest2 = 0;! v/ R2 t2 V$ `1 Q. [! E* m8 v# }
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char *dmabufsrc1 = NULL;
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char *dmabufsrc2 = NULL;
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char *dmabufdest1 = NULL;
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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);7 j' |0 e4 V7 j0 b) c6 A7 W
module_param(bcnt, int, S_IRUGO);
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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