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+ Z* C _8 A2 q k; }
/*
_; G6 L6 G% H( j/ ?( a4 k
* edma_test.c
; x+ \6 ~, r# H& Z a3 v( m* ?
*6 H8 H/ P0 F0 f3 b" q
* brief EDMA3 Test Application. U7 p& `4 m3 V/ U: U/ O
*
& K! A* c/ y/ ]1 k
* This file contains EDMA3 Test code.
) i$ x+ \; a7 G3 m5 {0 Y, Y6 L
** X, j& Y8 v _5 D- M3 K
* NOTE: THIS FILE IS PROVIDED ONLY FOR INITIAL DEMO RELEASE AND MAY BE8 L; _9 Z* ~; T0 H
* REMOVED AFTER THE DEMO OR THE CONTENTS OF THIS FILE ARE SUBJECT$ R- B* t, \/ J4 e2 D; c
* TO CHANGE.
% X1 V. I. C1 a8 m: V5 {
*8 V& t* D$ d/ d$ e, T
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ ]4 x% ^4 S' N
*
$ M6 M T% x& D' Q% e( p
* This program is free software; you can redistribute it and/or
7 `5 r2 h9 v2 N
* modify it under the terms of the GNU General Public License as( V; c! P1 Q+ Y# j) v! E
* published by the Free Software Foundation version 2.
$ _! g' `. K: f
*
% S d3 h% m9 p1 P0 [7 ?6 f( q
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
3 ^/ d) P! J4 f4 q7 t. \5 |
* kind, whether express or implied; without even the implied warranty
, V. n" \$ y4 ?$ F; R8 u+ {4 {% d
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ Y% U2 d9 x: N3 l" J! C5 ]
* GNU General Public License for more details.
|9 L# @/ K4 Q \4 }) B/ f1 A( T
*/
& m/ |. G4 ^3 v* a
9 S) {* h4 j I7 D' y
#include <linux/module.h>0 |: n) R0 X% c/ }
#include <linux/init.h>
: X; u8 Q% l; C9 i( G
#include <linux/errno.h>
3 N7 \' q8 Q5 r: n9 d+ p0 x+ `) B
#include <linux/types.h>
5 R/ t2 m4 J. n5 b
#include <linux/interrupt.h>
5 U% c4 {6 J- s0 b1 ]
#include <asm/io.h>1 y! m( T0 ^( N' K, C3 M) v
#include <linux/moduleparam.h>9 u, H2 M1 E) h- _
#include <linux/sysctl.h>) j g' T, D% p4 g' d# h: h% G2 x6 J8 a
#include <linux/mm.h>$ R9 l1 x7 R1 [8 @7 c* z0 H3 {
#include <linux/dma-mapping.h>9 l; P4 p2 I) g N+ @& r
0 R6 r- ~- R' k( }
#include <mach/memory.h>/ d( T0 a* ?! x) a+ h
#include <mach/hardware.h>
; E( h4 x R" ?4 l' Y1 X$ m
#include <mach/irqs.h>
, }) C' X9 ~# u7 c6 v0 z
#include <asm/hardware/edma.h>/ |0 \1 v% Y* g$ v- A8 M1 G; {" ]
! p/ K8 L8 U1 r% d+ W7 x, W
#undef EDMA3_DEBUG
, H* Y1 ]% [/ U# ~
/*#define EDMA3_DEBUG*/! |8 h- q+ o) Q9 [1 v" o
9 J, R+ Q$ d7 f
#ifdef EDMA3_DEBUG8 ]1 `7 N. n( B( A' Q
#define DMA_PRINTK(ARGS...) printk(KERN_INFO "<%s>: ",__FUNCTION__);printk(ARGS)3 W$ H' Z6 Q I
#define DMA_FN_IN printk(KERN_INFO "[%s]: start\n", __FUNCTION__)
( v/ G4 P6 H# y$ u) F) U
#define DMA_FN_OUT printk(KERN_INFO "[%s]: end\n",__FUNCTION__)# Q1 _6 A: s; G% E ~/ j. Z: u. J
#else( O f ~! @ L
#define DMA_PRINTK( x... )9 _% q% q1 `0 a5 H3 C9 ?0 _) f
#define DMA_FN_IN
' r8 N4 G" `' z5 E# L9 `5 ~' q
#define DMA_FN_OUT( P8 O6 F, j' d
#endif5 Y& B0 |) v) O
0 Z" V7 K6 Q! f* C5 N7 s) b
#define MAX_DMA_TRANSFER_IN_BYTES (32768)8 n7 \. k/ \+ A2 T
#define STATIC_SHIFT 3
& W1 | Y+ p) K7 @% e* k: C
#define TCINTEN_SHIFT 208 A/ c& _/ \3 d" ~: d2 }5 h
#define ITCINTEN_SHIFT 21. H, R4 j: }8 N" K/ ]" G4 w& [
#define TCCHEN_SHIFT 220 f% H$ }& g* D. b
#define ITCCHEN_SHIFT 236 ^- W# J, b S% @4 L
& w! [" j/ k W$ S9 K' Q. ~
static volatile int irqraised1 = 0;' V( s9 t5 _6 @) `3 Q% a7 H3 C
static volatile int irqraised2 = 0;
' p) E! j" P9 C7 u7 x
5 }7 C! }; n. V2 M
int edma3_memtomemcpytest_dma(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);' y5 M) i/ t0 C/ s
int edma3_memtomemcpytest_dma_link(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);
7 l$ R6 {6 `# n
int edma3_memtomemcpytest_dma_chain(int acnt, int bcnt, int ccnt, int sync_mode, int event_queue);) ? j( p# E" Y* i) Z. x, f9 u
8 z k% ^( h$ r& A
dma_addr_t dmaphyssrc1 = 0;
! Z, u# }( I0 b1 E) U4 \, `
dma_addr_t dmaphyssrc2 = 0;
% I$ ~, m' w1 K j2 y% ^. e
dma_addr_t dmaphysdest1 = 0;1 Z% P# m1 [0 \2 U f' a
dma_addr_t dmaphysdest2 = 0;
# N9 z1 W) g/ w) |
`! D o9 ]1 ]
char *dmabufsrc1 = NULL;
3 p, \9 b1 @5 f+ \; E& R
char *dmabufsrc2 = NULL;
; X5 Y* v1 Q- S1 G- m/ C
char *dmabufdest1 = NULL;: |5 h. j% o$ _8 E0 R6 H
char *dmabufdest2 = NULL;! a1 U, i) ^8 x4 i: M$ O. D. z8 d5 X
$ x4 Y% k4 }$ j8 v- t0 Y
static int acnt = 512;) U2 o x0 E6 ]& N- i. ]! c+ o
static int bcnt = 8;
) T, x$ o2 U j4 S
static int ccnt = 8;" C% M1 W1 y7 i! _( b
7 [" e4 d: Z2 p
module_param(acnt, int, S_IRUGO);
. { Z0 m7 L, W7 B' z" e
module_param(bcnt, int, S_IRUGO);' |' A, R5 u m: c n+ m/ I
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。

		自动登录	找回密码
密码			立即注册

[未解决] OMAPL138如何在Linux下使用EDMA3驱动