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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
/*************************************************************************************************************
Copyright (c) 2012-2015, Symphony Teleca Corporation, a Harman International Industries, Incorporated company
Copyright (c) 2016-2017, Harman International Industries, Incorporated
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS LISTED "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS LISTED BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Attributions: The inih library portion of the source code is licensed from
Brush Technology and Ben Hoyt - Copyright (c) 2009, Brush Technology and Copyright (c) 2009, Ben Hoyt.
Complete license and copyright information can be found at
https://github.com/benhoyt/inih/commit/74d2ca064fb293bc60a77b0bd068075b293cf175.
*************************************************************************************************************/
/*
* MODULE SUMMARY : Talker implementation for use with endpoint
*/
#include <stdlib.h>
#include <string.h>
#include "openavb_platform.h"
#include "openavb_trace.h"
#include "openavb_tl.h"
#include "openavb_endpoint.h"
#include "openavb_avtp.h"
#include "openavb_talker.h"
#include "openavb_time.h"
#include "openavb_avdecc_msg.h"
// DEBUG Uncomment to turn on logging for just this module.
//#define AVB_LOG_ON 1
#define AVB_LOG_COMPONENT "Talker"
#include "openavb_log.h"
/* Talker callback comes from endpoint, to indicate when listeners
* come and go. We may need to start or stop the talker thread.
*/
void openavbEptClntNotifyTlkrOfSrpCb(int endpointHandle,
AVBStreamID_t *streamID,
char *ifname,
U8 destAddr[],
openavbSrpLsnrDeclSubtype_t lsnrDecl,
U8 srClass,
U32 classRate,
U16 vlanID,
U8 priority,
U16 fwmark)
{
AVB_TRACE_ENTRY(AVB_TRACE_TL);
tl_state_t *pTLState = TLHandleListGet(endpointHandle);
talker_data_t *pTalkerData = pTLState->pPvtTalkerData;
if (!pTLState) {
AVB_LOG_WARNING("Unable to get talker from endpoint handle.");
return;
}
// If not a talker, ignore this callback.
if (pTLState->cfg.role != AVB_ROLE_TALKER) {
AVB_LOG_DEBUG("Ignoring Talker callback");
return;
}
AVB_LOGF_DEBUG("%s streaming=%d, lsnrDecl=%d", __FUNCTION__, pTLState->bStreaming, lsnrDecl);
openavb_tl_cfg_t *pCfg = &pTLState->cfg;
if (!pTLState->bStreaming) {
if (lsnrDecl == openavbSrp_LDSt_Ready
|| lsnrDecl == openavbSrp_LDSt_Ready_Failed) {
// Save the data provided by endpoint/SRP
if (!pCfg->ifname[0]) {
strncpy(pTalkerData->ifname, ifname, sizeof(pTalkerData->ifname) - 1);
} else {
strncpy(pTalkerData->ifname, pCfg->ifname, sizeof(pTalkerData->ifname) - 1);
}
memcpy(&pTalkerData->streamID, streamID, sizeof(AVBStreamID_t));
memcpy(&pTalkerData->destAddr, destAddr, ETH_ALEN);
pTalkerData->srClass = srClass;
pTalkerData->classRate = classRate;
pTalkerData->vlanID = vlanID;
pTalkerData->vlanPCP = priority;
pTalkerData->fwmark = fwmark;
// We should start streaming
AVB_LOGF_INFO("Starting stream: "STREAMID_FORMAT, STREAMID_ARGS(streamID));
talkerStartStream(pTLState);
}
else if (lsnrDecl == openavbSrp_LDSt_Stream_Info) {
// Stream information is available does NOT mean listener is ready. Stream not started yet.
if (!pCfg->ifname[0]) {
strncpy(pTalkerData->ifname, ifname, sizeof(pTalkerData->ifname) - 1);
} else {
strncpy(pTalkerData->ifname, pCfg->ifname, sizeof(pTalkerData->ifname) - 1);
}
memcpy(&pTalkerData->streamID, streamID, sizeof(AVBStreamID_t));
memcpy(&pTalkerData->destAddr, destAddr, ETH_ALEN);
pTalkerData->srClass = srClass;
pTalkerData->classRate = classRate;
pTalkerData->vlanID = vlanID;
pTalkerData->vlanPCP = priority;
pTalkerData->fwmark = fwmark;
}
}
else {
if (lsnrDecl != openavbSrp_LDSt_Ready
&& lsnrDecl != openavbSrp_LDSt_Ready_Failed) {
// Nobody is listening any more
AVB_LOGF_INFO("Stopping stream: "STREAMID_FORMAT, STREAMID_ARGS(streamID));
talkerStopStream(pTLState);
}
}
// Let the AVDECC Msg server know our current stream ID, in case it was updated by MAAP.
if (pTLState->avdeccMsgHandle != AVB_AVDECC_MSG_HANDLE_INVALID) {
if (!openavbAvdeccMsgClntTalkerStreamID(pTLState->avdeccMsgHandle,
pTalkerData->srClass, pTalkerData->streamID.addr, pTalkerData->streamID.uniqueID,
pTalkerData->destAddr, pTalkerData->vlanID)) {
AVB_LOG_ERROR("openavbAvdeccMsgClntTalkerStreamID() failed");
}
}
AVB_TRACE_EXIT(AVB_TRACE_TL);
}
bool openavbTLRunTalkerInit(tl_state_t *pTLState)
{
openavb_tl_cfg_t *pCfg = &pTLState->cfg;
talker_data_t *pTalkerData = pTLState->pPvtTalkerData;
AVBStreamID_t streamID;
memset(&streamID, 0, sizeof(AVBStreamID_t));
if (pCfg->stream_addr.mac)
memcpy(streamID.addr, pCfg->stream_addr.mac, ETH_ALEN);
streamID.uniqueID = pCfg->stream_uid;
unsigned int maxBitrate = 0;
if (pCfg->intf_cb.intf_get_src_bitrate_cb != NULL) {
maxBitrate = pCfg->intf_cb.intf_get_src_bitrate_cb(pTLState->pMediaQ);
}
if (maxBitrate > 0) {
if (pCfg->map_cb.map_set_src_bitrate_cb != NULL) {
pCfg->map_cb.map_set_src_bitrate_cb(pTLState->pMediaQ, maxBitrate);
}
if (pCfg->map_cb.map_get_max_interval_frames_cb != NULL) {
unsigned int map_intv_frames = pCfg->map_cb.map_get_max_interval_frames_cb(pTLState->pMediaQ, pTLState->cfg.sr_class);
pCfg->max_interval_frames = map_intv_frames > 0 ? map_intv_frames : pCfg->max_interval_frames;
}
}
pTalkerData->tSpec.maxIntervalFrames = pCfg->max_interval_frames;
// The TSpec frame size is the L2 payload - i.e. no Ethernet headers, VLAN, FCS, etc...
pTalkerData->tSpec.maxFrameSize = pCfg->map_cb.map_max_data_size_cb(pTLState->pMediaQ);
AVB_LOGF_INFO("Register "STREAMID_FORMAT": class: %c frame size: %d frame interval: %d", STREAMID_ARGS(&streamID), AVB_CLASS_LABEL(pCfg->sr_class), pTalkerData->tSpec.maxFrameSize, pTalkerData->tSpec.maxIntervalFrames);
// Tell endpoint to register our stream.
// SRP will send out talker declarations on the LAN.
// If there are listeners, we'll get callback (above.)
U32 transmitInterval = pTalkerData->classRate;
if (pCfg->map_cb.map_transmit_interval_cb(pTLState->pMediaQ)) {
// Override the class observation interval with the one provided by the mapping module.
transmitInterval = pCfg->map_cb.map_transmit_interval_cb(pTLState->pMediaQ);
}
return (openavbEptClntRegisterStream(pTLState->endpointHandle,
&streamID,
pCfg->dest_addr.mac->ether_addr_octet,
pCfg->backup_dest_addr_valid, // If we have a backup dest_addr, then the current one was forced and MAAP should not be used.
&pTalkerData->tSpec,
pCfg->sr_class,
pCfg->sr_rank,
pCfg->internal_latency,
transmitInterval));
}
void openavbTLRunTalkerFinish(tl_state_t *pTLState)
{
}
|
