1 |
/* |
---|
2 |
* Copyright (C) 2005-2007 by Pieter Palmers |
---|
3 |
* |
---|
4 |
* This file is part of FFADO |
---|
5 |
* FFADO = Free Firewire (pro-)audio drivers for linux |
---|
6 |
* |
---|
7 |
* FFADO is based upon FreeBoB. |
---|
8 |
* |
---|
9 |
* This program is free software: you can redistribute it and/or modify |
---|
10 |
* it under the terms of the GNU General Public License as published by |
---|
11 |
* the Free Software Foundation, either version 3 of the License, or |
---|
12 |
* (at your option) any later version. |
---|
13 |
* |
---|
14 |
* This program is distributed in the hope that it will be useful, |
---|
15 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
16 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
17 |
* GNU General Public License for more details. |
---|
18 |
* |
---|
19 |
* You should have received a copy of the GNU General Public License |
---|
20 |
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
---|
21 |
* |
---|
22 |
*/ |
---|
23 |
|
---|
24 |
#include "IsoHandler.h" |
---|
25 |
#include "ieee1394service.h" |
---|
26 |
|
---|
27 |
#include "libstreaming/generic/StreamProcessor.h" |
---|
28 |
#include "libutil/PosixThread.h" |
---|
29 |
|
---|
30 |
#include <errno.h> |
---|
31 |
#include <netinet/in.h> |
---|
32 |
#include <assert.h> |
---|
33 |
#include <unistd.h> |
---|
34 |
#include <string.h> |
---|
35 |
|
---|
36 |
#include <iostream> |
---|
37 |
using namespace std; |
---|
38 |
using namespace Streaming; |
---|
39 |
|
---|
40 |
IMPL_DEBUG_MODULE( IsoHandler, IsoHandler, DEBUG_LEVEL_NORMAL ); |
---|
41 |
|
---|
42 |
/* the C callbacks */ |
---|
43 |
enum raw1394_iso_disposition |
---|
44 |
IsoXmitHandler::iso_transmit_handler(raw1394handle_t handle, |
---|
45 |
unsigned char *data, unsigned int *length, |
---|
46 |
unsigned char *tag, unsigned char *sy, |
---|
47 |
int cycle, unsigned int dropped) { |
---|
48 |
|
---|
49 |
IsoXmitHandler *xmitHandler=static_cast<IsoXmitHandler *>(raw1394_get_userdata(handle)); |
---|
50 |
assert(xmitHandler); |
---|
51 |
|
---|
52 |
return xmitHandler->getPacket(data, length, tag, sy, cycle, dropped); |
---|
53 |
} |
---|
54 |
|
---|
55 |
enum raw1394_iso_disposition |
---|
56 |
IsoRecvHandler::iso_receive_handler(raw1394handle_t handle, unsigned char *data, |
---|
57 |
unsigned int length, unsigned char channel, |
---|
58 |
unsigned char tag, unsigned char sy, unsigned int cycle, |
---|
59 |
unsigned int dropped) { |
---|
60 |
|
---|
61 |
IsoRecvHandler *recvHandler=static_cast<IsoRecvHandler *>(raw1394_get_userdata(handle)); |
---|
62 |
assert(recvHandler); |
---|
63 |
|
---|
64 |
return recvHandler->putPacket(data, length, channel, tag, sy, cycle, dropped); |
---|
65 |
} |
---|
66 |
|
---|
67 |
int IsoHandler::busreset_handler(raw1394handle_t handle, unsigned int generation) |
---|
68 |
{ |
---|
69 |
debugOutput( DEBUG_LEVEL_VERBOSE, "Busreset happened, generation %d...\n", generation); |
---|
70 |
|
---|
71 |
IsoHandler *handler=static_cast<IsoHandler *>(raw1394_get_userdata(handle)); |
---|
72 |
assert(handler); |
---|
73 |
return handler->handleBusReset(generation); |
---|
74 |
} |
---|
75 |
|
---|
76 |
|
---|
77 |
/* Base class implementation */ |
---|
78 |
IsoHandler::IsoHandler(IsoHandlerManager& manager) |
---|
79 |
: m_manager(manager) |
---|
80 |
, m_handle(0) |
---|
81 |
, m_buf_packets(400) |
---|
82 |
, m_max_packet_size(1024) |
---|
83 |
, m_irq_interval(-1) |
---|
84 |
, m_packetcount(0) |
---|
85 |
, m_dropped(0) |
---|
86 |
, m_Client(0) |
---|
87 |
, m_poll_timeout( 100 ) |
---|
88 |
, m_realtime ( false ) |
---|
89 |
, m_priority ( 0 ) |
---|
90 |
, m_Thread ( NULL ) |
---|
91 |
, m_State(E_Created) |
---|
92 |
{ |
---|
93 |
} |
---|
94 |
|
---|
95 |
IsoHandler::IsoHandler(IsoHandlerManager& manager, unsigned int buf_packets, unsigned int max_packet_size, int irq) |
---|
96 |
: m_manager(manager) |
---|
97 |
, m_handle(0) |
---|
98 |
, m_buf_packets(buf_packets) |
---|
99 |
, m_max_packet_size( max_packet_size) |
---|
100 |
, m_irq_interval(irq) |
---|
101 |
, m_packetcount(0) |
---|
102 |
, m_dropped(0) |
---|
103 |
, m_Client(0) |
---|
104 |
, m_poll_timeout( 100 ) |
---|
105 |
, m_realtime ( false ) |
---|
106 |
, m_priority ( 0 ) |
---|
107 |
, m_Thread ( NULL ) |
---|
108 |
, m_State(E_Created) |
---|
109 |
{ |
---|
110 |
} |
---|
111 |
|
---|
112 |
IsoHandler::~IsoHandler() { |
---|
113 |
if (m_Thread) { |
---|
114 |
m_Thread->Stop(); |
---|
115 |
delete m_Thread; |
---|
116 |
} |
---|
117 |
// Don't call until libraw1394's raw1394_new_handle() function has been |
---|
118 |
// fixed to correctly initialise the iso_packet_infos field. Bug is |
---|
119 |
// confirmed present in libraw1394 1.2.1. In any case, |
---|
120 |
// raw1394_destroy_handle() will do any iso system shutdown required. |
---|
121 |
// raw1394_iso_shutdown(m_handle); |
---|
122 |
if(m_handle) { |
---|
123 |
if (m_State == E_Running) { |
---|
124 |
disable(); |
---|
125 |
} |
---|
126 |
raw1394_destroy_handle(m_handle); |
---|
127 |
} |
---|
128 |
} |
---|
129 |
|
---|
130 |
bool |
---|
131 |
IsoHandler::Init() { |
---|
132 |
debugOutput( DEBUG_LEVEL_VERBOSE, "%p: Init thread...\n", this); |
---|
133 |
m_poll_fd.fd = getFileDescriptor(); |
---|
134 |
m_poll_fd.revents = 0; |
---|
135 |
if (isEnabled()) { |
---|
136 |
m_poll_fd.events = POLLIN; |
---|
137 |
} else { |
---|
138 |
m_poll_fd.events = 0; |
---|
139 |
} |
---|
140 |
return true; |
---|
141 |
} |
---|
142 |
|
---|
143 |
bool |
---|
144 |
IsoHandler::Execute() { |
---|
145 |
int err; |
---|
146 |
|
---|
147 |
debugOutput( DEBUG_LEVEL_VERY_VERBOSE, "%p: Execute thread...\n", this); |
---|
148 |
// bypass if not running |
---|
149 |
if (m_State != E_Running) { |
---|
150 |
debugOutput( DEBUG_LEVEL_VERBOSE, "%p: not polling since not running...\n", this); |
---|
151 |
usleep(m_poll_timeout * 1000); |
---|
152 |
debugOutput( DEBUG_LEVEL_VERBOSE, "%p: done sleeping...\n", this); |
---|
153 |
return true; |
---|
154 |
} |
---|
155 |
|
---|
156 |
err = poll(&m_poll_fd, 1, m_poll_timeout); |
---|
157 |
if (err == -1) { |
---|
158 |
if (errno == EINTR) { |
---|
159 |
return true; |
---|
160 |
} |
---|
161 |
debugFatal("%p, poll error: %s\n", this, strerror (errno)); |
---|
162 |
return false; |
---|
163 |
} |
---|
164 |
|
---|
165 |
if (m_poll_fd.revents & POLLERR) { |
---|
166 |
debugWarning("error on fd for %p\n", this); |
---|
167 |
} |
---|
168 |
|
---|
169 |
if (m_poll_fd.revents & POLLHUP) { |
---|
170 |
debugWarning("hangup on fd for %p\n",this); |
---|
171 |
} |
---|
172 |
|
---|
173 |
if(m_poll_fd.revents & (POLLIN)) { |
---|
174 |
iterate(); |
---|
175 |
} |
---|
176 |
|
---|
177 |
return true; |
---|
178 |
} |
---|
179 |
|
---|
180 |
bool |
---|
181 |
IsoHandler::setThreadParameters(bool rt, int priority) { |
---|
182 |
debugOutput( DEBUG_LEVEL_VERBOSE, "(%p) (rt=%d, prio=%d)...\n", this, rt, priority); |
---|
183 |
if (priority > 98) priority = 98; // cap the priority |
---|
184 |
m_realtime = rt; |
---|
185 |
m_priority = priority; |
---|
186 |
|
---|
187 |
if (m_Thread) { |
---|
188 |
if (m_realtime) { |
---|
189 |
m_Thread->AcquireRealTime(m_priority); |
---|
190 |
} else { |
---|
191 |
m_Thread->DropRealTime(); |
---|
192 |
} |
---|
193 |
} |
---|
194 |
return true; |
---|
195 |
} |
---|
196 |
|
---|
197 |
bool |
---|
198 |
IsoHandler::iterate() { |
---|
199 |
debugOutput( DEBUG_LEVEL_VERY_VERBOSE, "IsoHandler (%p) iterate...\n",this); |
---|
200 |
if(raw1394_loop_iterate(m_handle)) { |
---|
201 |
debugOutput( DEBUG_LEVEL_VERBOSE, |
---|
202 |
"IsoHandler (%p): Failed to iterate handler: %s\n", |
---|
203 |
this,strerror(errno)); |
---|
204 |
return false; |
---|
205 |
} else { |
---|
206 |
return true; |
---|
207 |
} |
---|
208 |
} |
---|
209 |
|
---|
210 |
bool |
---|
211 |
IsoHandler::init() |
---|
212 |
{ |
---|
213 |
debugOutput( DEBUG_LEVEL_VERBOSE, "IsoHandler (%p) enter...\n",this); |
---|
214 |
// check the state |
---|
215 |
if(m_State != E_Created) { |
---|
216 |
debugError("Incorrect state, expected E_Created, got %d\n",(int)m_State); |
---|
217 |
return false; |
---|
218 |
} |
---|
219 |
|
---|
220 |
// the main handle for the ISO traffic |
---|
221 |
m_handle = raw1394_new_handle_on_port( m_manager.get1394Service().getPort() ); |
---|
222 |
if ( !m_handle ) { |
---|
223 |
if ( !errno ) { |
---|
224 |
debugError("libraw1394 not compatible\n"); |
---|
225 |
} else { |
---|
226 |
debugError("Could not get 1394 handle: %s\n", strerror(errno) ); |
---|
227 |
debugError("Are ieee1394 and raw1394 drivers loaded?\n"); |
---|
228 |
} |
---|
229 |
return false; |
---|
230 |
} |
---|
231 |
raw1394_set_userdata(m_handle, static_cast<void *>(this)); |
---|
232 |
|
---|
233 |
// bus reset handling |
---|
234 |
if(raw1394_busreset_notify (m_handle, RAW1394_NOTIFY_ON)) { |
---|
235 |
debugWarning("Could not enable busreset notification.\n"); |
---|
236 |
debugWarning(" Error message: %s\n",strerror(errno)); |
---|
237 |
debugWarning("Continuing without bus reset support.\n"); |
---|
238 |
} else { |
---|
239 |
// apparently this cannot fail |
---|
240 |
raw1394_set_bus_reset_handler(m_handle, busreset_handler); |
---|
241 |
} |
---|
242 |
|
---|
243 |
// create a thread to iterate ourselves |
---|
244 |
debugOutput( DEBUG_LEVEL_VERBOSE, "Start thread for %p...\n", this); |
---|
245 |
m_Thread = new Util::PosixThread(this, m_realtime, m_priority, |
---|
246 |
PTHREAD_CANCEL_DEFERRED); |
---|
247 |
if(!m_Thread) { |
---|
248 |
debugFatal("No thread\n"); |
---|
249 |
return false; |
---|
250 |
} |
---|
251 |
if (m_Thread->Start() != 0) { |
---|
252 |
debugFatal("Could not start update thread\n"); |
---|
253 |
return false; |
---|
254 |
} |
---|
255 |
|
---|
256 |
// update the internal state |
---|
257 |
m_State=E_Initialized; |
---|
258 |
return true; |
---|
259 |
} |
---|
260 |
|
---|
261 |
bool IsoHandler::prepare() |
---|
262 |
{ |
---|
263 |
debugOutput( DEBUG_LEVEL_VERBOSE, "IsoHandler (%p) prepare...\n", this); |
---|
264 |
// check the state |
---|
265 |
if(m_State != E_Initialized) { |
---|
266 |
debugError("Incorrect state, expected E_Initialized, got %d\n",(int)m_State); |
---|
267 |
return false; |
---|
268 |
} |
---|
269 |
// Don't call until libraw1394's raw1394_new_handle() function has been |
---|
270 |
// fixed to correctly initialise the iso_packet_infos field. Bug is |
---|
271 |
// confirmed present in libraw1394 1.2.1. |
---|
272 |
// raw1394_iso_shutdown(m_handle); |
---|
273 |
m_State = E_Prepared; |
---|
274 |
return true; |
---|
275 |
} |
---|
276 |
|
---|
277 |
bool IsoHandler::enable(int cycle) |
---|
278 |
{ |
---|
279 |
debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
---|
280 |
m_poll_fd.events = POLLIN; |
---|
281 |
m_State = E_Running; |
---|
282 |
return true; |
---|
283 |
} |
---|
284 |
|
---|
285 |
bool IsoHandler::disable() |
---|
286 |
{ |
---|
287 |
debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
---|
288 |
|
---|
289 |
// check state |
---|
290 |
if(m_State == E_Prepared) return true; |
---|
291 |
if(m_State != E_Running) { |
---|
292 |
debugError("Incorrect state, expected E_Running, got %d\n",(int)m_State); |
---|
293 |
return false; |
---|
294 |
} |
---|
295 |
|
---|
296 |
m_poll_fd.events = 0; |
---|
297 |
|
---|
298 |
// this is put here to try and avoid the |
---|
299 |
// Runaway context problem |
---|
300 |
// don't know if it will help though. |
---|
301 |
raw1394_iso_xmit_sync(m_handle); |
---|
302 |
raw1394_iso_stop(m_handle); |
---|
303 |
m_State = E_Prepared; |
---|
304 |
return true; |
---|
305 |
} |
---|
306 |
|
---|
307 |
/** |
---|
308 |
* Bus reset handler |
---|
309 |
* |
---|
310 |
* @return ? |
---|
311 |
*/ |
---|
312 |
|
---|
313 |
int IsoHandler::handleBusReset(unsigned int generation) { |
---|
314 |
debugOutput( DEBUG_LEVEL_VERBOSE, "bus reset...\n"); |
---|
315 |
|
---|
316 |
#define CSR_CYCLE_TIME 0x200 |
---|
317 |
#define CSR_REGISTER_BASE 0xfffff0000000ULL |
---|
318 |
// do a simple read on ourself in order to update the internal structures |
---|
319 |
// this avoids read failures after a bus reset |
---|
320 |
quadlet_t buf=0; |
---|
321 |
raw1394_read(m_handle, raw1394_get_local_id(m_handle), |
---|
322 |
CSR_REGISTER_BASE | CSR_CYCLE_TIME, 4, &buf); |
---|
323 |
return 0; |
---|
324 |
} |
---|
325 |
|
---|
326 |
void IsoHandler::dumpInfo() |
---|
327 |
{ |
---|
328 |
int channel=-1; |
---|
329 |
if (m_Client) channel=m_Client->getChannel(); |
---|
330 |
|
---|
331 |
debugOutputShort( DEBUG_LEVEL_NORMAL, " Handler type................: %s\n", |
---|
332 |
(this->getType()==EHT_Receive ? "Receive" : "Transmit")); |
---|
333 |
debugOutputShort( DEBUG_LEVEL_NORMAL, " Port, Channel...............: %2d, %2d\n", |
---|
334 |
m_manager.get1394Service().getPort(), channel); |
---|
335 |
debugOutputShort( DEBUG_LEVEL_NORMAL, " Buffer, MaxPacketSize, IRQ..: %4d, %4d, %4d\n", |
---|
336 |
m_buf_packets, m_max_packet_size, m_irq_interval); |
---|
337 |
debugOutputShort( DEBUG_LEVEL_NORMAL, " Packet count................: %10d (%5d dropped)\n", |
---|
338 |
this->getPacketCount(), this->getDroppedCount()); |
---|
339 |
} |
---|
340 |
|
---|
341 |
void IsoHandler::setVerboseLevel(int l) |
---|
342 |
{ |
---|
343 |
setDebugLevel(l); |
---|
344 |
if(m_Thread) m_Thread->setVerboseLevel(l); |
---|
345 |
} |
---|
346 |
|
---|
347 |
bool IsoHandler::registerStream(StreamProcessor *stream) |
---|
348 |
{ |
---|
349 |
assert(stream); |
---|
350 |
debugOutput( DEBUG_LEVEL_VERBOSE, "registering stream (%p)\n", stream); |
---|
351 |
|
---|
352 |
if (m_Client) { |
---|
353 |
debugFatal( "Generic IsoHandlers can have only one client\n"); |
---|
354 |
return false; |
---|
355 |
} |
---|
356 |
m_Client=stream; |
---|
357 |
return true; |
---|
358 |
} |
---|
359 |
|
---|
360 |
bool IsoHandler::unregisterStream(StreamProcessor *stream) |
---|
361 |
{ |
---|
362 |
assert(stream); |
---|
363 |
debugOutput( DEBUG_LEVEL_VERBOSE, "unregistering stream (%p)\n", stream); |
---|
364 |
|
---|
365 |
if(stream != m_Client) { |
---|
366 |
debugFatal( "no client registered\n"); |
---|
367 |
return false; |
---|
368 |
} |
---|
369 |
m_Client=0; |
---|
370 |
return true; |
---|
371 |
} |
---|
372 |
|
---|
373 |
/* Child class implementations */ |
---|
374 |
|
---|
375 |
IsoRecvHandler::IsoRecvHandler(IsoHandlerManager& manager) |
---|
376 |
: IsoHandler(manager) |
---|
377 |
{ |
---|
378 |
debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
---|
379 |
} |
---|
380 |
IsoRecvHandler::IsoRecvHandler(IsoHandlerManager& manager, unsigned int buf_packets, |
---|
381 |
unsigned int max_packet_size, int irq) |
---|
382 |
: IsoHandler(manager, buf_packets,max_packet_size,irq) |
---|
383 |
{ |
---|
384 |
debugOutput( DEBUG_LEVEL_VERBOSE, "enter...\n"); |
---|
385 |
|
---|
386 |
} |
---|
387 |
IsoRecvHandler::~IsoRecvHandler() |
---|
388 |
{ |
---|
389 |
|
---|
390 |
} |
---|
391 |
|
---|
392 |
void IsoRecvHandler::flush() |
---|
393 |
{ |
---|
394 |
raw1394_iso_recv_flush(m_handle); |
---|
395 |
} |
---|
396 |
|
---|
397 |
bool |
---|
398 |
IsoRecvHandler::init() { |
---|
399 |
debugOutput( DEBUG_LEVEL_VERBOSE, "init recv handler %p\n",this); |
---|
400 |
|
---|
401 |
if(!(IsoHandler::init())) { |
---|
402 |
return false; |
---|
403 |
} |
---|
404 |
return true; |
---|
405 |
|
---|
406 |
} |
---|
407 |
|
---|
408 |
enum raw1394_iso_disposition IsoRecvHandler::putPacket( |
---|
409 |
unsigned char *data, unsigned int length, |
---|
410 |
unsigned char channel, unsigned char tag, unsigned char sy, |
---|
411 |
unsigned int cycle, unsigned int dropped) { |
---|
412 |
|
---|
413 |
debugOutput( DEBUG_LEVEL_VERY_VERBOSE, |
---|
414 |
"received packet: length=%d, channel=%d, cycle=%d\n", |
---|
415 |
length, channel, cycle ); |
---|
416 |
m_packetcount++; |
---|
417 |
m_dropped+=dropped; |
---|
418 |
|
---|
419 |
if(m_Client) { |
---|
420 |
return m_Client->putPacket(data, length, channel, tag, sy, cycle, dropped); |
---|
421 |
} |
---|
422 |
|
---|
423 |
return RAW1394_ISO_OK; |
---|
424 |
} |
---|
425 |
|
---|
426 |
bool IsoRecvHandler::prepare() |
---|
427 |
{ |
---|
428 |
debugOutput( DEBUG_LEVEL_VERBOSE, "Preparing iso receive handler (%p, client=%p)\n", this, m_Client); |
---|
429 |
// prepare the generic IsoHandler |
---|
430 |
if(!IsoHandler::prepare()) { |
---|
431 |
return false; |
---|
432 |
} |
---|
433 |
debugOutput( DEBUG_LEVEL_VERBOSE, "Preparing iso receive handler (%p)\n",this); |
---|
434 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Buffers : %d \n", m_buf_packets); |
---|
435 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Max Packet size : %d \n", m_max_packet_size); |
---|
436 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Channel : %d \n", m_Client->getChannel()); |
---|
437 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Irq interval : %d \n", m_irq_interval); |
---|
438 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Mode : %s \n", |
---|
439 |
(m_irq_interval > 1)?"DMA_BUFFERFILL":"PACKET_PER_BUFFER"); |
---|
440 |
|
---|
441 |
if(m_irq_interval > 1) { |
---|
442 |
if(raw1394_iso_recv_init(m_handle, |
---|
443 |
iso_receive_handler, |
---|
444 |
m_buf_packets, |
---|
445 |
m_max_packet_size, |
---|
446 |
m_Client->getChannel(), |
---|
447 |
RAW1394_DMA_BUFFERFILL, |
---|
448 |
m_irq_interval)) { |
---|
449 |
debugFatal("Could not do receive initialisation!\n" ); |
---|
450 |
debugFatal(" %s\n",strerror(errno)); |
---|
451 |
|
---|
452 |
return false; |
---|
453 |
} |
---|
454 |
} else { |
---|
455 |
if(raw1394_iso_recv_init(m_handle, |
---|
456 |
iso_receive_handler, |
---|
457 |
m_buf_packets, |
---|
458 |
m_max_packet_size, |
---|
459 |
m_Client->getChannel(), |
---|
460 |
RAW1394_DMA_PACKET_PER_BUFFER, |
---|
461 |
m_irq_interval)) { |
---|
462 |
debugFatal("Could not do receive initialisation!\n" ); |
---|
463 |
debugFatal(" %s\n",strerror(errno)); |
---|
464 |
|
---|
465 |
return false; |
---|
466 |
} |
---|
467 |
} |
---|
468 |
return true; |
---|
469 |
} |
---|
470 |
|
---|
471 |
bool IsoRecvHandler::enable(int cycle) |
---|
472 |
{ |
---|
473 |
debugOutput( DEBUG_LEVEL_VERBOSE, "start on cycle %d\n", cycle); |
---|
474 |
// check the state |
---|
475 |
if(m_State != E_Prepared) { |
---|
476 |
if(!prepare()) { |
---|
477 |
debugFatal("Could not prepare recv handler\n"); |
---|
478 |
return false; |
---|
479 |
} |
---|
480 |
} |
---|
481 |
if(raw1394_iso_recv_start(m_handle, cycle, -1, 0)) { |
---|
482 |
debugFatal("Could not start receive handler (%s)\n",strerror(errno)); |
---|
483 |
dumpInfo(); |
---|
484 |
return false; |
---|
485 |
} |
---|
486 |
// start the generic IsoHandler |
---|
487 |
if(!IsoHandler::enable(cycle)) { |
---|
488 |
return false; |
---|
489 |
} |
---|
490 |
return true; |
---|
491 |
} |
---|
492 |
|
---|
493 |
int IsoRecvHandler::handleBusReset(unsigned int generation) { |
---|
494 |
debugOutput( DEBUG_LEVEL_VERBOSE, "handle bus reset...\n"); |
---|
495 |
|
---|
496 |
//TODO: implement busreset |
---|
497 |
|
---|
498 |
// pass on the busreset signal |
---|
499 |
if(IsoHandler::handleBusReset(generation)) { |
---|
500 |
return -1; |
---|
501 |
} |
---|
502 |
return 0; |
---|
503 |
} |
---|
504 |
|
---|
505 |
/* ----------------- XMIT --------------- */ |
---|
506 |
|
---|
507 |
IsoXmitHandler::IsoXmitHandler(IsoHandlerManager& manager) |
---|
508 |
: IsoHandler(manager), m_prebuffers(0) |
---|
509 |
{ |
---|
510 |
debugOutput( DEBUG_LEVEL_VERBOSE, "IsoXmitHandler enter...\n"); |
---|
511 |
|
---|
512 |
} |
---|
513 |
IsoXmitHandler::IsoXmitHandler(IsoHandlerManager& manager, unsigned int buf_packets, |
---|
514 |
unsigned int max_packet_size, int irq) |
---|
515 |
: IsoHandler(manager, buf_packets, max_packet_size,irq), |
---|
516 |
m_speed(RAW1394_ISO_SPEED_400), m_prebuffers(0) |
---|
517 |
{ |
---|
518 |
debugOutput( DEBUG_LEVEL_VERBOSE, "IsoXmitHandler enter...\n"); |
---|
519 |
|
---|
520 |
} |
---|
521 |
IsoXmitHandler::IsoXmitHandler(IsoHandlerManager& manager, unsigned int buf_packets, |
---|
522 |
unsigned int max_packet_size, int irq, |
---|
523 |
enum raw1394_iso_speed speed) |
---|
524 |
: IsoHandler(manager, buf_packets,max_packet_size,irq), |
---|
525 |
m_speed(speed), m_prebuffers(0) |
---|
526 |
{ |
---|
527 |
debugOutput( DEBUG_LEVEL_VERBOSE, "IsoXmitHandler enter...\n"); |
---|
528 |
|
---|
529 |
} |
---|
530 |
|
---|
531 |
IsoXmitHandler::~IsoXmitHandler() |
---|
532 |
{ |
---|
533 |
// handle cleanup is done in the IsoHanlder destructor |
---|
534 |
} |
---|
535 |
|
---|
536 |
bool |
---|
537 |
IsoXmitHandler::init() { |
---|
538 |
|
---|
539 |
debugOutput( DEBUG_LEVEL_VERBOSE, "init xmit handler %p\n",this); |
---|
540 |
|
---|
541 |
if(!(IsoHandler::init())) { |
---|
542 |
return false; |
---|
543 |
} |
---|
544 |
|
---|
545 |
return true; |
---|
546 |
} |
---|
547 |
|
---|
548 |
bool IsoXmitHandler::prepare() |
---|
549 |
{ |
---|
550 |
debugOutput( DEBUG_LEVEL_VERBOSE, "Preparing iso transmit handler (%p, client=%p)\n", this, m_Client); |
---|
551 |
if(!(IsoHandler::prepare())) { |
---|
552 |
return false; |
---|
553 |
} |
---|
554 |
|
---|
555 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Buffers : %d \n",m_buf_packets); |
---|
556 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Max Packet size : %d \n",m_max_packet_size); |
---|
557 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Channel : %d \n",m_Client->getChannel()); |
---|
558 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Speed : %d \n",m_speed); |
---|
559 |
debugOutput( DEBUG_LEVEL_VERBOSE, " Irq interval : %d \n",m_irq_interval); |
---|
560 |
if(raw1394_iso_xmit_init(m_handle, |
---|
561 |
iso_transmit_handler, |
---|
562 |
m_buf_packets, |
---|
563 |
m_max_packet_size, |
---|
564 |
m_Client->getChannel(), |
---|
565 |
m_speed, |
---|
566 |
m_irq_interval)) { |
---|
567 |
debugFatal("Could not do xmit initialisation!\n" ); |
---|
568 |
|
---|
569 |
return false; |
---|
570 |
} |
---|
571 |
return true; |
---|
572 |
} |
---|
573 |
|
---|
574 |
bool IsoXmitHandler::enable(int cycle) |
---|
575 |
{ |
---|
576 |
debugOutput( DEBUG_LEVEL_VERBOSE, "start on cycle %d, %d prebuffers\n", |
---|
577 |
cycle, m_prebuffers); |
---|
578 |
// check the state |
---|
579 |
if(m_State != E_Prepared) { |
---|
580 |
if(!prepare()) { |
---|
581 |
debugFatal("Could not prepare xmit handler\n"); |
---|
582 |
return false; |
---|
583 |
} |
---|
584 |
} |
---|
585 |
if(raw1394_iso_xmit_start(m_handle, cycle, m_prebuffers)) { |
---|
586 |
debugFatal("Could not start xmit handler (%s)\n",strerror(errno)); |
---|
587 |
dumpInfo(); |
---|
588 |
return false; |
---|
589 |
} |
---|
590 |
if(!(IsoHandler::enable(cycle))) { |
---|
591 |
return false; |
---|
592 |
} |
---|
593 |
return true; |
---|
594 |
} |
---|
595 |
|
---|
596 |
enum raw1394_iso_disposition IsoXmitHandler::getPacket( |
---|
597 |
unsigned char *data, unsigned int *length, |
---|
598 |
unsigned char *tag, unsigned char *sy, |
---|
599 |
int cycle, unsigned int dropped) { |
---|
600 |
|
---|
601 |
debugOutput( DEBUG_LEVEL_VERY_VERBOSE, |
---|
602 |
"sending packet: length=%d, cycle=%d\n", |
---|
603 |
*length, cycle ); |
---|
604 |
m_packetcount++; |
---|
605 |
m_dropped+=dropped; |
---|
606 |
|
---|
607 |
if(m_Client) { |
---|
608 |
return m_Client->getPacket(data, length, tag, sy, cycle, dropped, m_max_packet_size); |
---|
609 |
} |
---|
610 |
return RAW1394_ISO_OK; |
---|
611 |
} |
---|
612 |
|
---|
613 |
int IsoXmitHandler::handleBusReset(unsigned int generation) { |
---|
614 |
debugOutput( DEBUG_LEVEL_VERBOSE, "bus reset...\n"); |
---|
615 |
//TODO: implement busreset |
---|
616 |
// pass on the busreset signal |
---|
617 |
if(IsoHandler::handleBusReset(generation)) { |
---|
618 |
return -1; |
---|
619 |
} |
---|
620 |
return 0; |
---|
621 |
} |
---|
622 |
|
---|
623 |
void IsoXmitHandler::dumpInfo() |
---|
624 |
{ |
---|
625 |
IsoHandler::dumpInfo(); |
---|
626 |
debugOutputShort( DEBUG_LEVEL_NORMAL, " Speed, PreBuffers...........: %2d, %2d\n", |
---|
627 |
m_speed, m_prebuffers); |
---|
628 |
} |
---|