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- K( X4 W4 a6 N! t/ k
/*: {4 d/ V" l; Q" P
* edma_test.c6 G7 b6 [' ?$ g( e% C2 f0 ?
*
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* brief EDMA3 Test Application
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* This file contains EDMA3 Test code.. D; |2 f# A6 b
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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.$ F' ~! \$ E; G! s1 W
*- i9 [) f) t0 t' Q, u
* 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/or+ N8 B7 `# [0 s H0 r' O
* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.5 {9 |1 g1 K* E; O/ N& Z. o4 v
*# C V I% n& I% k1 u. E3 |6 s
* 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; @7 G, _! d, ?; @5 W! F2 Z" z2 E+ ]
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.7 ?* T9 I, j: V6 t+ s9 V
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#include <linux/module.h> n7 `6 k6 T% A7 C6 j- U
#include <linux/init.h>
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#include <linux/errno.h>5 A6 J0 g1 Y0 ] c3 u8 h& X! D
#include <linux/types.h>; W, `- `$ S7 E, D& P. V( Z
#include <linux/interrupt.h>
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#include <asm/io.h>) f3 W1 O x+ _0 ]3 i
#include <linux/moduleparam.h>: H8 |' k1 i& Z% |3 J. m
#include <linux/sysctl.h>" R3 q( m" s4 r6 I
#include <linux/mm.h>6 T& y% l( P) ]5 }& u8 F
#include <linux/dma-mapping.h>4 {, w2 m* i0 u/ Z B) y* F" K
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#include <mach/memory.h>4 n. S' @. N0 V
#include <mach/hardware.h>
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#include <mach/irqs.h>
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#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG2 V$ l/ R$ r' ^, s, w
/*#define EDMA3_DEBUG*// X1 O! R! e- e( K; S' |2 U) U/ }
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#ifdef EDMA3_DEBUG& i: l3 F& }3 K
#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__)0 U& |! I: m! d, r- y
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else
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#define DMA_PRINTK( x... )
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#define DMA_FN_IN. Q; G2 y$ H) |; Z" o. |* g
#define DMA_FN_OUT6 r5 q! |+ i; i3 B o( X" e- P( {5 [
#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! O& k3 ~, ~( F, L1 c v+ R
#define ITCINTEN_SHIFT 21) E M$ N) ~$ W5 r3 v
#define TCCHEN_SHIFT 22
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#define ITCCHEN_SHIFT 236 L, ^) E' ?' {6 }
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static volatile int irqraised1 = 0;8 m/ Z/ b- ]0 S
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);' m- U) }# Z: K W
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);! E- ]3 P- D# E" k) F9 E
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;" ^/ F9 X7 z y6 w
dma_addr_t dmaphyssrc2 = 0;5 n! W$ U5 V8 y( t& @, k8 A* {
dma_addr_t dmaphysdest1 = 0;
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dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL;/ W( t @5 D5 V! c* t: h2 `% Q2 m
char *dmabufsrc2 = NULL;
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char *dmabufdest1 = NULL;1 x* Z" \6 p: j8 J
char *dmabufdest2 = NULL;: D7 | Y8 G/ _) q- A9 ^0 g" Z
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static int acnt = 512;" |) g7 w8 t' Q2 V
static int bcnt = 8;
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static int ccnt = 8;7 E! _- I% K1 a! e* B! I2 q
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module_param(acnt, int, S_IRUGO);
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module_param(bcnt, int, S_IRUGO);3 Y) J! j, L! \" |+ u3 Y
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