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
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* edma_test.c
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*
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* brief EDMA3 Test Application8 q, ]; D- {4 G) |8 @! g
*
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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$ p: M3 o9 V4 W9 Z1 F' A# y
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT- ^, J6 J! T' y3 @# W; V; w
* TO CHANGE.% T. \: J5 @$ R- T4 L9 m
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/( C1 h2 A* ~4 s e9 [: T
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* This program is free software; you can redistribute it and/or; s( s6 p$ `# W d# X
* modify it under the terms of the GNU General Public License as. |0 q3 k- O: ]6 q: j& }+ D
* 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 any1 e( l6 ]+ D+ u* F1 V. ?1 @
* 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.9 X [6 u. u/ i3 [ B: h
*/
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#include <linux/module.h>, V: |5 V* R4 P+ r" h7 n
#include <linux/init.h> }8 k# p' N3 i8 a6 s
#include <linux/errno.h>% {5 S+ U# q, |
#include <linux/types.h>+ m3 z: P5 x" z9 F8 }6 G
#include <linux/interrupt.h>
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#include <asm/io.h>
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#include <linux/moduleparam.h>* L# }; q- E% |. _3 s5 |
#include <linux/sysctl.h>
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#include <linux/mm.h>. N, T) U8 C7 v7 x y2 h
#include <linux/dma-mapping.h> O& O% r( H2 w! Y! W
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#include <mach/memory.h># R6 v, s2 z0 `' l, P
#include <mach/hardware.h>4 y8 X2 Q" [# J; a) Y
#include <mach/irqs.h>
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#include <asm/hardware/edma.h>
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#undef EDMA3_DEBUG2 R" y' d- s$ U0 o
/*#define EDMA3_DEBUG*/ G( s7 x6 K1 n" \' N c
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#ifdef EDMA3_DEBUG* D0 _5 B3 v2 {: s- {. y8 h/ N
#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__)
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#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)
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#else' @ l4 ?7 `3 p2 c. u
#define DMA_PRINTK( x... ), k- |" [- |; D% q3 G( Y+ k
#define DMA_FN_IN
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#define DMA_FN_OUT& L/ q9 A$ P0 L" X; o4 G7 a# R- n
#endif) J" f& ~- V) k/ Q
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#define MAX_DMA_TRANSFER_IN_BYTES (32768)) |; U b, N/ |+ i" p
#define STATIC_SHIFT 3
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#define TCINTEN_SHIFT 20+ h; `4 g9 ?- i* S* W
#define ITCINTEN_SHIFT 21
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#define TCCHEN_SHIFT 222 d! n* q2 i8 K7 {* P4 {% E) U9 p/ p
#define ITCCHEN_SHIFT 23# p2 T3 e7 w- \* U3 h
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static volatile int irqraised1 = 0;, z' l# N) q2 U! p6 T9 u
static volatile int irqraised2 = 0;# r# b+ U# ]8 q; Y$ X- R! i
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int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);0 _. K0 ]/ L- q- _8 e7 z
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);! u% h# M- M: _5 w6 ^
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dma_addr_t dmaphyssrc1 = 0;
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dma_addr_t dmaphyssrc2 = 0; g7 A# ~) t; Q4 E; {) E. f
dma_addr_t dmaphysdest1 = 0;% y/ N( z. E v$ I! \# d
dma_addr_t dmaphysdest2 = 0;
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char *dmabufsrc1 = NULL;5 h+ k- y* o' d) a) {2 G
char *dmabufsrc2 = NULL;1 f6 i7 ?/ v R% z$ m7 j) [' j
char *dmabufdest1 = NULL;2 ]# N* V/ r+ o$ C1 j
char *dmabufdest2 = NULL;
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static int acnt = 512;. V$ ~# l5 r9 S
static int bcnt = 8;; o( {& _$ H/ S
static int ccnt = 8;% O0 ?5 T( P7 d+ d8 G
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module_param(acnt, int, S_IRUGO);9 h$ K% F! d0 j- X
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