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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*******************************************************************************
* Copyright (C) ST-Ericsson SA 2011
* License terms: 3-clause BSD license
******************************************************************************/
/**
* @addtogroup ldr_communication_serv
* @{
* @addtogroup z_family
* @{
* @addtogroup ldr_network_layer
* @{
*/
/*******************************************************************************
* Includes
******************************************************************************/
#include <stdlib.h>
#include <string.h>
#include "c_system.h"
#include "t_basicdefinitions.h"
#include "r_z_family.h"
#include "r_z_transport.h"
#include "r_z_network.h"
#include "r_z_protocol.h"
#include "r_debug.h"
#include "r_communication_service.h"
#include "r_critical_section.h"
#ifdef WIN32
#include <windows.h>
#endif
/*******************************************************************************
* Declaration of file local functions
******************************************************************************/
/*******************************************************************************
* File scope types, constants and variables
******************************************************************************/
#define Z_RESET_INBOUND(c, s) do { (c)->ReqData = 0; (c)->RecData = 0; (c)->Target_p = NULL; (c)->State = (s); } while(0);
#define Z_SYNC_HEADER(c, d, t) do { (c)->ReqData = d; (c)->Target_p = t; } while(0);
#define Z_SET_INBOUND(c, s, d) do { (c)->ReqData = d; (c)->RecData = 0; (c)->State = (s); } while(0);
/*******************************************************************************
* Definition of external functions
******************************************************************************/
ErrorCode_e Z_Network_Initialize(Communication_t *Communication_p)
{
if (NULL == Communication_p) {
return E_INVALID_INPUT_PARAMETERS;
}
memset(Z_NETWORK(Communication_p), 0, sizeof(Z_NetworkContext_t));
Z_NETWORK(Communication_p)->Outbound.TxCriticalSection = Do_CriticalSection_Create();
/* Simulate a finished read to get the inbound state-machine going. */
Z_Network_ReadCallback(NULL, 0, Communication_p);
return E_SUCCESS;
}
ErrorCode_e Z_Network_Shutdown(const Communication_t *const Communication_p)
{
Do_CriticalSection_Destroy(&(Z_NETWORK(Communication_p)->Outbound.TxCriticalSection));
return E_SUCCESS;
}
void Z_Network_ReadCallback(const void *Data_p, const uint32 Length, void *Param_p)
{
Communication_t *Communication_p = (Communication_t *)Param_p;
CommandData_t CmdData;
Z_NETWORK(Communication_p)->Inbound.RecData += Length;
if (Z_NETWORK(Communication_p)->Inbound.ReqData == 0) {
Z_Inbound_t *In_p = &(Z_NETWORK(Communication_p)->Inbound);
if (In_p->RecData == 0) {
In_p->ReqData = Z_HEADER_LENGTH;
In_p->Target_p = In_p->Scratch;
} else {
CmdData.Payload.Data_p = In_p->Scratch;
(void)Communication_p->Do_CEH_Call_Fn(Communication_p->Object_p, &CmdData);
Z_RESET_INBOUND(In_p, Z_RECEIVE_HEADER);
Z_SYNC_HEADER(In_p, Z_HEADER_LENGTH, In_p->Scratch);
}
}
}
void Z_Network_ReceiverHandler(Communication_t *Communication_p)
{
uint32 ReqData;
Z_Inbound_t *In_p = &(Z_NETWORK(Communication_p)->Inbound);
/* new data for receiving ? */
if (In_p->ReqData > 0) {
ReqData = In_p->ReqData;
In_p->ReqData = 0;
In_p->RecData = 0;
(void)Communication_p->CommunicationDevice_p->Read(In_p->Target_p, ReqData, Z_Network_ReadCallback, Communication_p);
C_(printf("z_network.c (%d) ReqData(%d) RecData(%d) \n", __LINE__, ReqData, In_p->RecData);)
}
/* check for receiver sinhronization */
if (In_p->State == Z_RECEIVE_ERROR) {
In_p->ReqData = 0;
In_p->RecData = 0;
(void)Communication_p->CommunicationDevice_p->Read(In_p->Target_p, Z_HEADER_LENGTH, Z_Network_ReadCallback, Communication_p);
}
}
void Z_Network_WriteCallback(const void *Data_p, const uint32 Length, void *Param_p)
{
}
ErrorCode_e Z_Network_TransmiterHandler(Communication_t *Communication_p, Z_SendingContent_t *SendingContent_p)
{
uint8 *Data_p = SendingContent_p->Data_p;
uint8 Size = SendingContent_p->Size;
Z_Outbound_t *Out_p = &(Z_NETWORK(Communication_p)->Outbound);
if (!Do_CriticalSection_Enter(Out_p->TxCriticalSection)) {
return E_SUCCESS;
}
switch (Out_p->State) {
case Z_SEND_IDLE:
/* get next packet for transmiting */
Out_p->State = Z_SEND_PACKET;
/* FALLTHROUGH */
case Z_SEND_PACKET:
if (E_SUCCESS == Communication_p->CommunicationDevice_p->Write(Data_p,
Size,
Z_Network_WriteCallback, Communication_p)) {
Out_p->State = Z_SENDING_PACKET;
} else {
/* error state ?*/
}
/* FALLTHROUGH */
case Z_SENDING_PACKET:
Out_p->State = Z_SEND_IDLE;
break;
}
Do_CriticalSection_Leave(Out_p->TxCriticalSection);
return E_SUCCESS;
}
/*******************************************************************************
* Definition of internal functions
******************************************************************************/
/** @} */
/** @} */
/** @} */
|
