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' h+ V/ E5 p h+ ?! z- C
/** f! F; Y2 t. ], t2 `" @, V
* edma_test.c* R. l% Q% N8 c7 x2 |1 {9 e$ o
*
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* brief EDMA3 Test Application
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* This file contains EDMA3 Test code., ~9 I) M9 J- i
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* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE" Y. G: k. a2 U& k5 @, [2 P( R- E
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT
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* TO CHANGE.: A/ {4 y. ]' L1 U& E
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/1 q* l6 |, _* ^' Y0 M
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* This program is free software; you can redistribute it and/or" j9 K) L5 O% q6 R/ X$ D
* 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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*5 Y: ^: x0 z! P6 }' V0 C& ]6 }
* This program is distributed "as is" WITHOUT ANY WARRANTY of any v, Y! d9 F6 x( Q* R9 m0 {
* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the9 N4 m! c" I7 V( D: z0 ?
* GNU General Public License for more details.0 T' e. F- |3 t6 {2 m0 z* _
*/
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#include <linux/module.h>/ t( j( o- o+ _- z" \( ]: o! E
#include <linux/init.h>
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#include <linux/errno.h>* Z7 y: K: B( u# X
#include <linux/types.h>- F: X5 l( n1 ?8 ?" f) L$ Q
#include <linux/interrupt.h>/ O$ L6 U% [/ Z
#include <asm/io.h>2 n ~6 b4 V# b" L9 p
#include <linux/moduleparam.h>
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#include <linux/sysctl.h>2 v5 I0 @+ ~% h" h- F5 Q
#include <linux/mm.h>6 D$ I( O/ y! i# p! f# o K/ ]* b# ^. ~
#include <linux/dma-mapping.h>) k: n, K7 ], k% E* x" j
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#include <mach/memory.h>6 x9 v O1 O$ Q5 H, \# ~
#include <mach/hardware.h>1 P0 `# `, T! s4 c+ u" Z. L0 r8 l$ N
#include <mach/irqs.h>
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#include <asm/hardware/edma.h>4 W6 r3 T' @* b( S9 Z/ L
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#undef EDMA3_DEBUG, C* {( Z$ i" [. O, U
/*#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__)* O8 \$ H& C( f+ i4 ^
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__), u" L) g; v ?1 D+ o& E
#else
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#define DMA_PRINTK( x... )
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#define DMA_FN_IN }6 a* H6 O9 ^3 j* E$ C
#define DMA_FN_OUT
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#endif
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#define MAX_DMA_TRANSFER_IN_BYTES (32768) v% t% T! W o/ t# ~% P) y; y
#define STATIC_SHIFT 3" h W/ v- a E
#define TCINTEN_SHIFT 20; q+ G9 W& K6 k: E! z' C
#define ITCINTEN_SHIFT 21; r/ G$ ]/ h1 ]( u; J8 L$ ]
#define TCCHEN_SHIFT 223 D- O! g' ^3 F. ?" }+ o
#define ITCCHEN_SHIFT 23 x c! @* q/ s" N. T) Y$ s
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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);/ `2 y2 b# z3 a6 q6 v$ H! f- i
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);; }4 N& W* t, W2 w( N
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;2 J/ r$ ^* U8 P. D" a
dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;6 T) x- Z0 N: {6 c4 R4 d4 G* z
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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;* a& r9 F6 R+ p1 o1 x
static int ccnt = 8;6 x* c$ D8 x+ Y* ~* E9 e8 k+ w
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module_param(acnt, int, S_IRUGO);- u( g1 ?' c. O
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