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comparison src/gpf2/inc/ipcapi.h @ 1:864b8cc0cf63

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src/gpf2: preened GPF goo from TCS211
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 25 Sep 2016 23:38:58 +0000
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0:945cf7f506b2 1:864b8cc0cf63
1 /*
2 +-----------------------------------------------------------------------------
3 | Project : PCO
4 | Modul : inc\ipcapi.h
5 +-----------------------------------------------------------------------------
6 | Copyright 2002 Texas Instruments Berlin, AG
7 | All rights reserved.
8 |
9 | This file is confidential and a trade secret of Texas
10 | Instruments Berlin, AG
11 | The receipt of or possession of this file does not convey
12 | any rights to reproduce or disclose its contents or to
13 | manufacture, use, or sell anything it may describe, in
14 | whole, or in part, without the specific written consent of
15 | Texas Instruments Berlin, AG.
16 +-----------------------------------------------------------------------------
17 | Purpose : API definition for IPC
18 +-----------------------------------------------------------------------------
19 */
20 #ifndef IPCAPI_H
21 #define IPCAPI_H
22
23 #include "cms.h"
24
25 #undef EXPORT
26 #include <typedefs.h>
27
28 /* define extra function codes for driver ipc */
29 #define IPC_SELF 10
30 #define IPC_INITCH 11
31 #define IPC_EXITCH 12
32 #define IPC_OPENCH 13
33 #define IPC_CLOSECH 14
34 #define IPC_READCH 15
35 #define IPC_WRITECH 16
36 #define IPC_CREATEMSG 17
37 #define IPC_PARSEMSG 18
38 #define IPC_ISMYADDR 19
39 #define IPC_GETHANDLE 20
40 #define IPC_SETTIME 21
41
42
43 /**********************************************************************
44 * macros
45 *********************************************************************/
46
47 #define MSG_ID( Group, Code ) (((Group) << 8) + ((Code) & 0xFF))
48
49
50 /**********************************************************************
51 * defines
52 *********************************************************************/
53
54 /* return codes */
55 #define IPC_OK CMS_OK
56 #define IPC_ERROR CMS_ERROR
57 #define IPC_EXIST CMS_EXIST
58 #define IPC_FULL CMS_FULL
59 #define IPC_BADHANDLE CMS_BADHANDLE
60 #define IPC_EMPTY CMS_EMPTY
61 #define IPC_SIZE CMS_SIZE
62 #define IPC_TIMEOUT CMS_TIMEOUT
63 #define IPC_NOMEM CMS_NOMEM
64 #define IPC_INVALID (-20)
65 #define IPC_MISALIGNED (-21)
66
67
68
69 #define IPC_MAX_PATH_SIZE 120
70
71 /* msg IDs: */
72 #define IPC_GENERATED MSG_ID(IPC,1)
73
74 #define ALIGNMENT 1
75 #define MSG_MAX_SIZE 512
76
77 /**********************************************************************
78 * types
79 *********************************************************************/
80
81
82 typedef int IPC_HANDLE;
83
84 typedef struct
85 {
86 char *pcSender;
87 char *pcReceiver;
88 void *pvBuffer;
89 U32 ulTime;
90 U16 uwTenthOfMS;
91 U16 uwSize;
92 U16 uwID;
93 } MSG_HEADER;
94
95
96
97 #if ALIGNMENT == 1
98 typedef U8 MSG_BUFFER [MSG_MAX_SIZE];
99 #elif ALIGNMENT == 2
100 typedef U16 MSG_BUFFER [(MSG_MAX_SIZE + 1) / 2];
101 #elif ALIGNMENT == 4
102 typedef U32 MSG_BUFFER [(MSG_MAX_SIZE + 3) / 4];
103 #else
104 #error "invalid alignment"
105 #endif
106
107
108 /* standard funtions: */
109
110
111 /*********************************************************************/
112 U16 ipc_createMsg ( /* @func Create a message. */
113 void *pvBuffer,/* @parm Buffer for the message to store. */
114 U16 uwSize, /* @parm Size of the buffer. */
115 MSG_HEADER Msg /* @parm Settings for the message to create. */
116 ); /* @returnvalue One of the values below. */
117 /*---------------------------------------------------------------------
118 * @description The function creates a message out of the settings
119 * that are stored in the structure. The resulting
120 * message will be written to the buffer.
121 *
122 * Attention: The address of the buffer MUST be
123 * aligned (multiple of ALIGNMENT)
124 *
125 * Sender and Receiver will be inserted in normalized
126 * form (= absolute address) !
127 *
128 * @tablex Return values: |
129 * Value Description
130 * --------------------------------------------------
131 * > 0 Size of the message.
132 * = 0 Buffer too small, invalid settings.
133 *
134 * @tablex Content of pHdr: |
135 * Setting Description
136 * -------------- -----------------------------------
137 * pcSender NULL means that the calling process
138 * is the sender. Otherwise the string
139 * will be inserted into the message.
140 * pcReceiver Name of the receiver (string)
141 * or IPC_HANDLE of the receiver.
142 * pvBuffer Pointer to the data to append to
143 * the message.
144 * uwSize Size of the data to append to the
145 * message.
146 * uwID Message group and code. Use the
147 * macro MSG_ID(Group,Code) to set the
148 * value.
149 * ulTime Automatically set.
150 * uwTenthOfMS Automatically set.
151 *********************************************************************/
152
153
154 /*********************************************************************/
155 S16 ipc_parseMsg ( /* @func Parse a message. */
156 MSG_HEADER *pMsg, /* @parm Structure to store the settings. */
157 void *pvBuffer,/* @parm Buffer containing the message. */
158 U16 uwSize /* @parm Size of pvBuffer. */
159 ); /* @returnvalue One of the values below. */
160 /*---------------------------------------------------------------------
161 * @description The function parses a buffer that contains a
162 * a message and writes all settings to the
163 * structure.
164 *
165 * Attention: The address of the buffer MUST be
166 * aligned (multiple of ALIGNMENT)
167 *
168 * @tablex Return values: |
169 * Value Description
170 * --------------------------------------------------
171 * IPC_INVALID Invalid arguments or message.
172 * IPC_OK Success.
173 *
174 * @tablex Content of pHdr: |
175 * Setting Description
176 * -------------- -----------------------------------
177 * pcSender Address of the sender.
178 * pcReceiver Address of the receiver (normally
179 * the process receiving the message).
180 * pvBuffer Pointer to the data of the message.
181 * uwSize Size of the data.
182 * uwID Message group and code. Use the
183 * macro MSG_ID(Group,Code) to compare
184 * the value with other IDs.
185 * ulTime Time [ms from 01.01.1970 GMT] of
186 * message's creation.
187 * uwTenthOfMS The tenth of [ms] of the message's
188 * creation.
189 *********************************************************************/
190
191 #endif /* IPCAPI_H */
192