blob: 6ce00b8da5bb2d21235c36ee49b5d81b201e20fc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/******************************************************************************
*
* Copyright 2007-2010 Freescale Semiconductor, Inc. All Rights Reserved.
*
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*
******************************************************************************
*
* File: iapiDefaults.h
*
* $Id iapiDefaults.h $
*
* Description:
* This library is written in C to guarantee functionality and integrity in
* the usage of SDMA virtual DMA channels. This API (Application Programming
* Interface) allow SDMA channels' access in an OPEN, READ, WRITE, CLOSE
* fashion.
*
*
*
*
* $Log iapiDefaults.h $
*
*****************************************************************************/
#ifndef _iapi_defaults_h
#define _iapi_defaults_h
/******************************************************************************
* Include File Section
*****************************************************************************/
#include "epm.h"
#include "sdmaStruct.h"
/* ****************************************************************************
* Macro-command Section
* ***************************************************************************/
/**
* Error codes
* lower 5 bits free to include channel number when available
* and bit number 6 must be set when channel number is available
*
* Note :
* 1) Abbreviations / naming convention :
* - BD : Buffer Descriptor
* - CC : Channel Context
* - CCB : Channel Control Block
* - CD : Channel Descriptor
* - B : Buffer
* - CH : Channel
*
*/
#define IAPI_SUCCESS 0
#define IAPI_FAILURE -1
#define IAPI_ERR_CH_AVAILABLE 0x00020
#define IAPI_ERR_NO_ERROR 0x00000
#define IAPI_ERR_NO_CCB_DEFINED 0x01000
#define IAPI_ERR_BD_UNINITIALIZED 0x02000
#define IAPI_ERR_BD_ALLOCATED 0x03000
#define IAPI_ERR_BD_ALLOCATION 0x04000
#define IAPI_ERR_CCB_ALLOC_FAILED 0x05000
#define IAPI_ERR_CCB_UNINITIALIZED 0x06000
#define IAPI_ERR_CC_ALREADY_DEFINED 0x07000
#define IAPI_ERR_CC_ALLOC_FAILED 0x08000
#define IAPI_ERR_CD_ALREADY_DEFINED 0x09000
#define IAPI_ERR_CD_ALLOC_FAILED 0x0A000
#define IAPI_ERR_CD_CHANGE_CH_NUMBER 0x0B000
#define IAPI_ERR_CD_CHANGE_CCB_PTR 0x0C000
#define IAPI_ERR_CD_CHANGE_UNKNOWN 0x0D000
#define IAPI_ERR_CD_CHANGE 0x0E000
#define IAPI_ERR_CD_UNINITIALIZED 0x0F000
#define IAPI_ERR_CLOSE 0x10000
#define IAPI_ERR_B_ALLOC_FAILED 0x11000
#define IAPI_ERR_CONFIG_OVERRIDE 0x12000
#define IAPI_ERR_CH_IN_USE 0x13000
#define IAPI_ERR_CALLBACKSYNCH_UNKNOWN 0x14000
#define IAPI_ERR_INVALID_PARAMETER 0x15000
#define IAPI_ERR_TRUST 0x16000
#define IAPI_ERR_CHANNEL_UNINITIALIZED 0x17000
#define IAPI_ERR_RROR_BIT_READ 0x18000
#define IAPI_ERR_RROR_BIT_WRITE 0x19000
#define IAPI_ERR_NOT_ALLOWED 0x1A000
#define IAPI_ERR_NO_OS_FN 0x1B000
/*
* Global Variable Section
*/
/*
* Table to hold pointers to the callback functions registered by the users of
*I.API
*/
extern void (*callbackIsrTable[CH_NUM]) (channelDescriptor * cd_p, void *arg);
/*
* Table to hold user registered data pointers, to be privided in the callback
*function
*/
extern void *userArgTable[CH_NUM];
/* channelDescriptor data structure filled with default data*/
extern channelDescriptor iapi_ChannelDefaults;
/* Global variable to hold the last error encountered in I.API operations*/
extern unsigned int iapi_errno;
/* Used in synchronization, to mark started channels*/
extern volatile unsigned long iapi_SDMAIntr;
/* Hold a pointer to the start of the CCB array, to be used in the IRQ routine
*to find the channel descriptor for the channed sending the interrupt to the
*core.
*/
extern channelControlBlock *iapi_CCBHead;
/* configs_data structure filled with default data*/
extern configs_data iapi_ConfigDefaults;
#endif /* iapiDefaults_h */
|
