DevHDACommon.cpp@ 82425

Last change on this file since 82425 was 82406, checked in by vboxsync, 5 years ago
DevHDA: Cleanups. bugref:9218
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1	/* $Id: DevHDACommon.cpp 82406 2019-12-05 00:47:02Z vboxsync $ */
2	/** @file
3	* DevHDACommon.cpp - Shared HDA device functions.
4	*
5	* @todo r=bird: Shared with whom exactly?
6	*/
7
8	/*
9	* Copyright (C) 2017-2019 Oracle Corporation
10	*
11	* This file is part of VirtualBox Open Source Edition (OSE), as
12	* available from http://www.virtualbox.org. This file is free software;
13	* you can redistribute it and/or modify it under the terms of the GNU
14	* General Public License (GPL) as published by the Free Software
15	* Foundation, in version 2 as it comes in the "COPYING" file of the
16	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
17	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
18	*/
19
20
21	/*********************************************************************************************************************************
22	* Header Files *
23	*********************************************************************************************************************************/
24	#include <iprt/assert.h>
25	#include <iprt/errcore.h>
26
27	#include <VBox/AssertGuest.h>
28
29	#define LOG_GROUP LOG_GROUP_DEV_HDA
30	#include <VBox/log.h>
31
32	#include "DrvAudio.h"
33
34	#include "DevHDA.h"
35	#include "DevHDACommon.h"
36
37	#include "HDAStream.h"
38
39
40	/**
41	* Processes (de/asserts) the interrupt according to the HDA's current state.
42	*
43	* @returns IPRT status code.
44	* @param pDevIns The device instance.
45	* @param pThis HDA state.
46	* @param pszSource Caller information.
47	*/
48	#if defined(LOG_ENABLED) \|\| defined(DOXYGEN_RUNNING)
49	int hdaProcessInterrupt(PPDMDEVINS pDevIns, PHDASTATE pThis, const char *pszSource)
50	#else
51	int hdaProcessInterrupt(PPDMDEVINS pDevIns, PHDASTATE pThis)
52	#endif
53	{
54	uint32_t uIntSts = hdaGetINTSTS(pThis);
55
56	HDA_REG(pThis, INTSTS) = uIntSts;
57
58	/* NB: It is possible to have GIS set even when CIE/SIEn are all zero; the GIS bit does
59	* not control the interrupt signal. See Figure 4 on page 54 of the HDA 1.0a spec.
60	*/
61	/* Global Interrupt Enable (GIE) set? */
62	if ( (HDA_REG(pThis, INTCTL) & HDA_INTCTL_GIE)
63	&& (HDA_REG(pThis, INTSTS) & HDA_REG(pThis, INTCTL) & (HDA_INTCTL_CIE \| HDA_STRMINT_MASK)))
64	{
65	Log3Func(("Asserted (%s)\n", pszSource));
66
67	PDMDevHlpPCISetIrq(pDevIns, 0, 1 /* Assert */);
68	pThis->u8IRQL = 1;
69
70	#ifdef DEBUG
71	pThis->Dbg.IRQ.tsAssertedNs = RTTimeNanoTS();
72	pThis->Dbg.IRQ.tsProcessedLastNs = pThis->Dbg.IRQ.tsAssertedNs;
73	#endif
74	}
75	else
76	{
77	Log3Func(("Deasserted (%s)\n", pszSource));
78
79	PDMDevHlpPCISetIrq(pDevIns, 0, 0 /* Deassert */);
80	pThis->u8IRQL = 0;
81	}
82
83	return VINF_SUCCESS;
84	}
85
86	/**
87	* Retrieves the currently set value for the wall clock.
88	*
89	* @return IPRT status code.
90	* @return Currently set wall clock value.
91	* @param pThis HDA state.
92	*
93	* @remark Operation is atomic.
94	*/
95	uint64_t hdaWalClkGetCurrent(PHDASTATE pThis)
96	{
97	return ASMAtomicReadU64(&pThis->u64WalClk);
98	}
99
100	#ifdef IN_RING3
101
102	/**
103	* Sets the actual WALCLK register to the specified wall clock value.
104	* The specified wall clock value only will be set (unless fForce is set to true) if all
105	* handled HDA streams have passed (in time) that value. This guarantees that the WALCLK
106	* register stays in sync with all handled HDA streams.
107	*
108	* @return true if the WALCLK register has been updated, false if not.
109	* @param pThis HDA state.
110	* @param u64WalClk Wall clock value to set WALCLK register to.
111	* @param fForce Whether to force setting the wall clock value or not.
112	*/
113	bool hdaR3WalClkSet(PHDASTATE pThis, uint64_t u64WalClk, bool fForce)
114	{
115	const bool fFrontPassed = hdaR3StreamPeriodHasPassedAbsWalClk (&hdaR3GetStreamFromSink(pThis, &pThis->SinkFront)->State.Period,
116	u64WalClk);
117	const uint64_t u64FrontAbsWalClk = hdaR3StreamPeriodGetAbsElapsedWalClk(&hdaR3GetStreamFromSink(pThis, &pThis->SinkFront)->State.Period);
118	# ifdef VBOX_WITH_AUDIO_HDA_51_SURROUND
119	# error "Implement me!"
120	# endif
121
122	const bool fLineInPassed = hdaR3StreamPeriodHasPassedAbsWalClk (&hdaR3GetStreamFromSink(pThis, &pThis->SinkLineIn)->State.Period, u64WalClk);
123	const uint64_t u64LineInAbsWalClk = hdaR3StreamPeriodGetAbsElapsedWalClk(&hdaR3GetStreamFromSink(pThis, &pThis->SinkLineIn)->State.Period);
124	# ifdef VBOX_WITH_HDA_MIC_IN
125	const bool fMicInPassed = hdaR3StreamPeriodHasPassedAbsWalClk (&hdaR3GetStreamFromSink(pThis, &pThis->SinkMicIn)->State.Period, u64WalClk);
126	const uint64_t u64MicInAbsWalClk = hdaR3StreamPeriodGetAbsElapsedWalClk(&hdaR3GetStreamFromSink(pThis, &pThis->SinkMicIn)->State.Period);
127	# endif
128
129	# ifdef VBOX_STRICT
130	const uint64_t u64WalClkCur = ASMAtomicReadU64(&pThis->u64WalClk);
131	# endif
132
133	/* Only drive the WALCLK register forward if all (active) stream periods have passed
134	* the specified point in time given by u64WalClk. */
135	if ( ( fFrontPassed
136	# ifdef VBOX_WITH_AUDIO_HDA_51_SURROUND
137	# error "Implement me!"
138	# endif
139	&& fLineInPassed
140	# ifdef VBOX_WITH_HDA_MIC_IN
141	&& fMicInPassed
142	# endif
143	)
144	\|\| fForce)
145	{
146	if (!fForce)
147	{
148	/* Get the maximum value of all periods we need to handle.
149	* Not the most elegant solution, but works for now ... */
150	u64WalClk = RT_MAX(u64WalClk, u64FrontAbsWalClk);
151	# ifdef VBOX_WITH_AUDIO_HDA_51_SURROUND
152	# error "Implement me!"
153	# endif
154	u64WalClk = RT_MAX(u64WalClk, u64LineInAbsWalClk);
155	# ifdef VBOX_WITH_HDA_MIC_IN
156	u64WalClk = RT_MAX(u64WalClk, u64MicInAbsWalClk);
157	# endif
158
159	# ifdef VBOX_STRICT
160	AssertMsg(u64WalClk >= u64WalClkCur,
161	("Setting WALCLK to a value going backwards does not make any sense (old %RU64 vs. new %RU64)\n",
162	u64WalClkCur, u64WalClk));
163	if (u64WalClk == u64WalClkCur) /* Setting a stale value? */
164	{
165	if (pThis->u8WalClkStaleCnt++ > 3)
166	AssertMsgFailed(("Setting WALCLK to a stale value (%RU64) too often isn't a good idea really. "
167	"Good luck with stuck audio stuff.\n", u64WalClk));
168	}
169	else
170	pThis->u8WalClkStaleCnt = 0;
171	# endif
172	}
173
174	/* Set the new WALCLK value. */
175	ASMAtomicWriteU64(&pThis->u64WalClk, u64WalClk);
176	}
177
178	const uint64_t u64WalClkNew = hdaWalClkGetCurrent(pThis);
179
180	Log3Func(("Cur: %RU64, New: %RU64 (force %RTbool) -> %RU64 %s\n",
181	u64WalClkCur, u64WalClk, fForce,
182	u64WalClkNew, u64WalClkNew == u64WalClk ? "[OK]" : "[DELAYED]"));
183
184	return (u64WalClkNew == u64WalClk);
185	}
186
187	/**
188	* Returns the default (mixer) sink from a given SD#.
189	* Returns NULL if no sink is found.
190	*
191	* @return PHDAMIXERSINK
192	* @param pThis HDA state.
193	* @param uSD SD# to return mixer sink for.
194	* NULL if not found / handled.
195	*/
196	PHDAMIXERSINK hdaR3GetDefaultSink(PHDASTATE pThis, uint8_t uSD)
197	{
198	if (hdaGetDirFromSD(uSD) == PDMAUDIODIR_IN)
199	{
200	const uint8_t uFirstSDI = 0;
201
202	if (uSD == uFirstSDI) /* First SDI. */
203	return &pThis->SinkLineIn;
204	# ifdef VBOX_WITH_AUDIO_HDA_MIC_IN
205	if (uSD == uFirstSDI + 1)
206	return &pThis->SinkMicIn;
207	# else
208	/* If we don't have a dedicated Mic-In sink, use the always present Line-In sink. */
209	return &pThis->SinkLineIn;
210	# endif
211	}
212	else
213	{
214	const uint8_t uFirstSDO = HDA_MAX_SDI;
215
216	if (uSD == uFirstSDO)
217	return &pThis->SinkFront;
218	# ifdef VBOX_WITH_AUDIO_HDA_51_SURROUND
219	if (uSD == uFirstSDO + 1)
220	return &pThis->SinkCenterLFE;
221	if (uSD == uFirstSDO + 2)
222	return &pThis->SinkRear;
223	# endif
224	}
225
226	return NULL;
227	}
228
229	#endif /* IN_RING3 */
230
231	/**
232	* Returns the audio direction of a specified stream descriptor.
233	*
234	* The register layout specifies that input streams (SDI) come first,
235	* followed by the output streams (SDO). So every stream ID below HDA_MAX_SDI
236	* is an input stream, whereas everything >= HDA_MAX_SDI is an output stream.
237	*
238	* Note: SDnFMT register does not provide that information, so we have to judge
239	* for ourselves.
240	*
241	* @return Audio direction.
242	*/
243	PDMAUDIODIR hdaGetDirFromSD(uint8_t uSD)
244	{
245	AssertReturn(uSD < HDA_MAX_STREAMS, PDMAUDIODIR_UNKNOWN);
246
247	if (uSD < HDA_MAX_SDI)
248	return PDMAUDIODIR_IN;
249
250	return PDMAUDIODIR_OUT;
251	}
252
253	/**
254	* Returns the HDA stream of specified stream descriptor number.
255	*
256	* @return Pointer to HDA stream, or NULL if none found.
257	*/
258	PHDASTREAM hdaGetStreamFromSD(PHDASTATE pThis, uint8_t uSD)
259	{
260	AssertPtr(pThis);
261	ASSERT_GUEST_MSG_RETURN(uSD < HDA_MAX_STREAMS, ("uSD=%u (%#x)\n", uSD, uSD), NULL);
262	return &pThis->aStreams[uSD];
263	}
264
265	#ifdef IN_RING3
266
267	/**
268	* Returns the HDA stream of specified HDA sink.
269	*
270	* @return Pointer to HDA stream, or NULL if none found.
271	*/
272	PHDASTREAM hdaR3GetStreamFromSink(PHDASTATE pThis, PHDAMIXERSINK pSink)
273	{
274	AssertPtrReturn(pThis, NULL);
275	AssertPtrReturn(pSink, NULL);
276
277	/** @todo Do something with the channel mapping here? */
278	return pSink->pStream;
279	}
280
281	/**
282	* Reads DMA data from a given HDA output stream.
283	*
284	* @return IPRT status code.
285	* @param pThis HDA state.
286	* @param pStream HDA output stream to read DMA data from.
287	* @param pvBuf Where to store the read data.
288	* @param cbBuf How much to read in bytes.
289	* @param pcbRead Returns read bytes from DMA. Optional.
290	*/
291	int hdaR3DMARead(PHDASTATE pThis, PHDASTREAM pStream, void pvBuf, uint32_t cbBuf, uint32_t pcbRead)
292	{
293	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
294	AssertPtrReturn(pStream, VERR_INVALID_POINTER);
295	/* pcbRead is optional. */
296
297	PHDABDLE pBDLE = &pStream->State.BDLE;
298
299	int rc = VINF_SUCCESS;
300
301	uint32_t cbReadTotal = 0;
302	uint32_t cbLeft = RT_MIN(cbBuf, pBDLE->Desc.u32BufSize - pBDLE->State.u32BufOff);
303
304	# ifdef HDA_DEBUG_SILENCE
305	uint64_t csSilence = 0;
306
307	pStream->Dbg.cSilenceThreshold = 100;
308	pStream->Dbg.cbSilenceReadMin = _1M;
309	# endif
310
311	RTGCPHYS addrChunk = pBDLE->Desc.u64BufAddr + pBDLE->State.u32BufOff;
312
313	while (cbLeft)
314	{
315	uint32_t cbChunk = RT_MIN(cbLeft, pStream->u16FIFOS);
316
317	rc = PDMDevHlpPhysRead(pThis->CTX_SUFF(pDevIns), addrChunk, (uint8_t *)pvBuf + cbReadTotal, cbChunk);
318	if (RT_FAILURE(rc))
319	break;
320
321	# ifdef HDA_DEBUG_SILENCE
322	uint16_t pu16Buf = (uint16_t )pvBuf;
323	for (size_t i = 0; i < cbChunk / sizeof(uint16_t); i++)
324	{
325	if (*pu16Buf == 0)
326	csSilence++;
327	else
328	break;
329	pu16Buf++;
330	}
331	# endif
332	if (pStream->Dbg.Runtime.fEnabled)
333	DrvAudioHlpFileWrite(pStream->Dbg.Runtime.pFileDMARaw, (uint8_t )pvBuf + cbReadTotal, cbChunk, 0 / fFlags */);
334
335	STAM_COUNTER_ADD(&pThis->StatBytesRead, cbChunk);
336	addrChunk = (addrChunk + cbChunk) % pBDLE->Desc.u32BufSize;
337
338	Assert(cbLeft >= cbChunk);
339	cbLeft -= cbChunk;
340
341	cbReadTotal += cbChunk;
342	}
343
344	# ifdef HDA_DEBUG_SILENCE
345	if (csSilence)
346	pStream->Dbg.csSilence += csSilence;
347
348	if ( csSilence == 0
349	&& pStream->Dbg.csSilence > pStream->Dbg.cSilenceThreshold
350	&& pStream->Dbg.cbReadTotal >= pStream->Dbg.cbSilenceReadMin)
351	{
352	LogFunc(("Silent block detected: %RU64 audio samples\n", pStream->Dbg.csSilence));
353	pStream->Dbg.csSilence = 0;
354	}
355	# endif
356
357	if (RT_SUCCESS(rc))
358	{
359	if (pcbRead)
360	*pcbRead = cbReadTotal;
361	}
362
363	return rc;
364	}
365
366	/**
367	* Writes audio data from an HDA input stream's FIFO to its associated DMA area.
368	*
369	* @return IPRT status code.
370	* @param pThis HDA state.
371	* @param pStream HDA input stream to write audio data to.
372	* @param pvBuf Data to write.
373	* @param cbBuf How much (in bytes) to write.
374	* @param pcbWritten Returns written bytes on success. Optional.
375	*/
376	int hdaR3DMAWrite(PHDASTATE pThis, PHDASTREAM pStream, const void pvBuf, uint32_t cbBuf, uint32_t pcbWritten)
377	{
378	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
379	AssertPtrReturn(pStream, VERR_INVALID_POINTER);
380	/* pcbWritten is optional. */
381
382	PHDABDLE pBDLE = &pStream->State.BDLE;
383
384	int rc = VINF_SUCCESS;
385
386	uint32_t cbWrittenTotal = 0;
387	uint32_t cbLeft = RT_MIN(cbBuf, pBDLE->Desc.u32BufSize - pBDLE->State.u32BufOff);
388
389	RTGCPHYS addrChunk = pBDLE->Desc.u64BufAddr + pBDLE->State.u32BufOff;
390
391	while (cbLeft)
392	{
393	uint32_t cbChunk = RT_MIN(cbLeft, pStream->u16FIFOS);
394
395	/* Sanity checks. */
396	Assert(cbChunk <= pBDLE->Desc.u32BufSize - pBDLE->State.u32BufOff);
397
398	if (pStream->Dbg.Runtime.fEnabled)
399	DrvAudioHlpFileWrite(pStream->Dbg.Runtime.pFileDMARaw, (uint8_t )pvBuf + cbWrittenTotal, cbChunk, 0 / fFlags */);
400
401	rc = PDMDevHlpPCIPhysWrite(pThis->CTX_SUFF(pDevIns),
402	addrChunk, (uint8_t *)pvBuf + cbWrittenTotal, cbChunk);
403	if (RT_FAILURE(rc))
404	break;
405
406	STAM_COUNTER_ADD(&pThis->StatBytesWritten, cbChunk);
407	addrChunk = (addrChunk + cbChunk) % pBDLE->Desc.u32BufSize;
408
409	Assert(cbLeft >= cbChunk);
410	cbLeft -= (uint32_t)cbChunk;
411
412	cbWrittenTotal += (uint32_t)cbChunk;
413	}
414
415	if (RT_SUCCESS(rc))
416	{
417	if (pcbWritten)
418	*pcbWritten = cbWrittenTotal;
419	}
420	else
421	LogFunc(("Failed with %Rrc\n", rc));
422
423	return rc;
424	}
425
426	#endif /* IN_RING3 */
427
428	/**
429	* Returns a new INTSTS value based on the current device state.
430	*
431	* @returns Determined INTSTS register value.
432	* @param pThis HDA state.
433	*
434	* @remark This function does not set INTSTS!
435	*/
436	uint32_t hdaGetINTSTS(PHDASTATE pThis)
437	{
438	uint32_t intSts = 0;
439
440	/* Check controller interrupts (RIRB, STATEST). */
441	if (HDA_REG(pThis, RIRBSTS) & HDA_REG(pThis, RIRBCTL) & (HDA_RIRBCTL_ROIC \| HDA_RIRBCTL_RINTCTL))
442	{
443	intSts \|= HDA_INTSTS_CIS; /* Set the Controller Interrupt Status (CIS). */
444	}
445
446	/* Check SDIN State Change Status Flags. */
447	if (HDA_REG(pThis, STATESTS) & HDA_REG(pThis, WAKEEN))
448	{
449	intSts \|= HDA_INTSTS_CIS; /* Touch Controller Interrupt Status (CIS). */
450	}
451
452	/* For each stream, check if any interrupt status bit is set and enabled. */
453	for (uint8_t iStrm = 0; iStrm < HDA_MAX_STREAMS; ++iStrm)
454	{
455	if (HDA_STREAM_REG(pThis, STS, iStrm) & HDA_STREAM_REG(pThis, CTL, iStrm) & (HDA_SDCTL_DEIE \| HDA_SDCTL_FEIE \| HDA_SDCTL_IOCE))
456	{
457	Log3Func(("[SD%d] interrupt status set\n", iStrm));
458	intSts \|= RT_BIT(iStrm);
459	}
460	}
461
462	if (intSts)
463	intSts \|= HDA_INTSTS_GIS; /* Set the Global Interrupt Status (GIS). */
464
465	Log3Func(("-> 0x%x\n", intSts));
466
467	return intSts;
468	}
469
470	#ifdef IN_RING3
471
472	/**
473	* Converts an HDA stream's SDFMT register into a given PCM properties structure.
474	*
475	* @return IPRT status code.
476	* @param u16SDFMT The HDA stream's SDFMT value to convert.
477	* @param pProps PCM properties structure to hold converted result on success.
478	*/
479	int hdaR3SDFMTToPCMProps(uint16_t u16SDFMT, PPDMAUDIOPCMPROPS pProps)
480	{
481	AssertPtrReturn(pProps, VERR_INVALID_POINTER);
482
483	# define EXTRACT_VALUE(v, mask, shift) ((v & ((mask) << (shift))) >> (shift))
484
485	int rc = VINF_SUCCESS;
486
487	uint32_t u32Hz = EXTRACT_VALUE(u16SDFMT, HDA_SDFMT_BASE_RATE_MASK, HDA_SDFMT_BASE_RATE_SHIFT)
488	? 44100 : 48000;
489	uint32_t u32HzMult = 1;
490	uint32_t u32HzDiv = 1;
491
492	switch (EXTRACT_VALUE(u16SDFMT, HDA_SDFMT_MULT_MASK, HDA_SDFMT_MULT_SHIFT))
493	{
494	case 0: u32HzMult = 1; break;
495	case 1: u32HzMult = 2; break;
496	case 2: u32HzMult = 3; break;
497	case 3: u32HzMult = 4; break;
498	default:
499	LogFunc(("Unsupported multiplier %x\n",
500	EXTRACT_VALUE(u16SDFMT, HDA_SDFMT_MULT_MASK, HDA_SDFMT_MULT_SHIFT)));
501	rc = VERR_NOT_SUPPORTED;
502	break;
503	}
504	switch (EXTRACT_VALUE(u16SDFMT, HDA_SDFMT_DIV_MASK, HDA_SDFMT_DIV_SHIFT))
505	{
506	case 0: u32HzDiv = 1; break;
507	case 1: u32HzDiv = 2; break;
508	case 2: u32HzDiv = 3; break;
509	case 3: u32HzDiv = 4; break;
510	case 4: u32HzDiv = 5; break;
511	case 5: u32HzDiv = 6; break;
512	case 6: u32HzDiv = 7; break;
513	case 7: u32HzDiv = 8; break;
514	default:
515	LogFunc(("Unsupported divisor %x\n",
516	EXTRACT_VALUE(u16SDFMT, HDA_SDFMT_DIV_MASK, HDA_SDFMT_DIV_SHIFT)));
517	rc = VERR_NOT_SUPPORTED;
518	break;
519	}
520
521	uint8_t cBytes = 0;
522	switch (EXTRACT_VALUE(u16SDFMT, HDA_SDFMT_BITS_MASK, HDA_SDFMT_BITS_SHIFT))
523	{
524	case 0:
525	cBytes = 1;
526	break;
527	case 1:
528	cBytes = 2;
529	break;
530	case 4:
531	cBytes = 4;
532	break;
533	default:
534	AssertMsgFailed(("Unsupported bits per sample %x\n",
535	EXTRACT_VALUE(u16SDFMT, HDA_SDFMT_BITS_MASK, HDA_SDFMT_BITS_SHIFT)));
536	rc = VERR_NOT_SUPPORTED;
537	break;
538	}
539
540	if (RT_SUCCESS(rc))
541	{
542	RT_BZERO(pProps, sizeof(PDMAUDIOPCMPROPS));
543
544	pProps->cbSample = cBytes;
545	pProps->fSigned = true;
546	pProps->cChannels = (u16SDFMT & 0xf) + 1;
547	pProps->uHz = u32Hz * u32HzMult / u32HzDiv;
548	pProps->cShift = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pProps->cbSample, pProps->cChannels);
549	}
550
551	# undef EXTRACT_VALUE
552	return rc;
553	}
554
555	# ifdef LOG_ENABLED
556	void hdaR3BDLEDumpAll(PHDASTATE pThis, uint64_t u64BDLBase, uint16_t cBDLE)
557	{
558	LogFlowFunc(("BDLEs @ 0x%x (%RU16):\n", u64BDLBase, cBDLE));
559	if (!u64BDLBase)
560	return;
561
562	uint32_t cbBDLE = 0;
563	for (uint16_t i = 0; i < cBDLE; i++)
564	{
565	HDABDLEDESC bd;
566	PDMDevHlpPhysRead(pThis->CTX_SUFF(pDevIns), u64BDLBase + i * sizeof(HDABDLEDESC), &bd, sizeof(bd));
567
568	LogFunc(("\t#%03d BDLE(adr:0x%llx, size:%RU32, ioc:%RTbool)\n",
569	i, bd.u64BufAddr, bd.u32BufSize, bd.fFlags & HDA_BDLE_F_IOC));
570
571	cbBDLE += bd.u32BufSize;
572	}
573
574	LogFlowFunc(("Total: %RU32 bytes\n", cbBDLE));
575
576	if (!pThis->u64DPBase) /* No DMA base given? Bail out. */
577	return;
578
579	LogFlowFunc(("DMA counters:\n"));
580
581	for (int i = 0; i < cBDLE; i++)
582	{
583	uint32_t uDMACnt;
584	PDMDevHlpPhysRead(pThis->CTX_SUFF(pDevIns), (pThis->u64DPBase & DPBASE_ADDR_MASK) + (i * 2 * sizeof(uint32_t)),
585	&uDMACnt, sizeof(uDMACnt));
586
587	LogFlowFunc(("\t#%03d DMA @ 0x%x\n", i , uDMACnt));
588	}
589	}
590	# endif /* LOG_ENABLED */
591
592	/**
593	* Fetches a Bundle Descriptor List Entry (BDLE) from the DMA engine.
594	*
595	* @param pThis Pointer to HDA state.
596	* @param pBDLE Where to store the fetched result.
597	* @param u64BaseDMA Address base of DMA engine to use.
598	* @param u16Entry BDLE entry to fetch.
599	*/
600	int hdaR3BDLEFetch(PHDASTATE pThis, PHDABDLE pBDLE, uint64_t u64BaseDMA, uint16_t u16Entry)
601	{
602	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
603	AssertPtrReturn(pBDLE, VERR_INVALID_POINTER);
604	AssertReturn(u64BaseDMA, VERR_INVALID_PARAMETER);
605
606	if (!u64BaseDMA)
607	{
608	LogRel2(("HDA: Unable to fetch BDLE #%RU16 - no base DMA address set (yet)\n", u16Entry));
609	return VERR_NOT_FOUND;
610	}
611	/** @todo Compare u16Entry with LVI. */
612
613	int rc = PDMDevHlpPhysRead(pThis->CTX_SUFF(pDevIns), u64BaseDMA + (u16Entry * sizeof(HDABDLEDESC)),
614	&pBDLE->Desc, sizeof(pBDLE->Desc));
615
616	if (RT_SUCCESS(rc))
617	{
618	/* Reset internal state. */
619	RT_ZERO(pBDLE->State);
620	pBDLE->State.u32BDLIndex = u16Entry;
621	}
622
623	Log3Func(("Entry #%d @ 0x%x: %R[bdle], rc=%Rrc\n", u16Entry, u64BaseDMA + (u16Entry * sizeof(HDABDLEDESC)), pBDLE, rc));
624
625
626	return VINF_SUCCESS;
627	}
628
629	/**
630	* Tells whether a given BDLE is complete or not.
631	*
632	* @return true if BDLE is complete, false if not.
633	* @param pBDLE BDLE to retrieve status for.
634	*/
635	bool hdaR3BDLEIsComplete(PHDABDLE pBDLE)
636	{
637	bool fIsComplete = false;
638
639	if ( !pBDLE->Desc.u32BufSize /* There can be BDLEs with 0 size. */
640	\|\| (pBDLE->State.u32BufOff >= pBDLE->Desc.u32BufSize))
641	{
642	Assert(pBDLE->State.u32BufOff == pBDLE->Desc.u32BufSize);
643	fIsComplete = true;
644	}
645
646	Log3Func(("%R[bdle] => %s\n", pBDLE, fIsComplete ? "COMPLETE" : "INCOMPLETE"));
647
648	return fIsComplete;
649	}
650
651	/**
652	* Tells whether a given BDLE needs an interrupt or not.
653	*
654	* @return true if BDLE needs an interrupt, false if not.
655	* @param pBDLE BDLE to retrieve status for.
656	*/
657	bool hdaR3BDLENeedsInterrupt(PHDABDLE pBDLE)
658	{
659	return (pBDLE->Desc.fFlags & HDA_BDLE_F_IOC);
660	}
661
662	/**
663	* Sets the virtual device timer to a new expiration time.
664	*
665	* @returns Whether the new expiration time was set or not.
666	* @param pDevIns The device instance.
667	* @param pStream HDA stream to set timer for.
668	* @param tsExpire New (virtual) expiration time to set.
669	* @param fForce Whether to force setting the expiration time or not.
670	* @param tsNow The current clock timestamp if available, 0 if not.
671	*
672	* @remark This function takes all active HDA streams and their
673	* current timing into account. This is needed to make sure
674	* that all streams can match their needed timing.
675	*
676	* To achieve this, the earliest (lowest) timestamp of all
677	* active streams found will be used for the next scheduling slot.
678	*
679	* Forcing a new expiration time will override the above mechanism.
680	*/
681	bool hdaR3TimerSet(PPDMDEVINS pDevIns, PHDASTREAM pStream, uint64_t tsExpire, bool fForce, uint64_t tsNow)
682	{
683	AssertPtr(pStream);
684
685	if (!tsNow)
686	tsNow = PDMDevHlpTimerGet(pDevIns, pStream->hTimer);
687
688	if (!fForce)
689	{
690	/** @todo r=bird: hdaR3StreamTransferIsScheduled() also does a
691	* PDMDevHlpTimerGet(), so, some callers does one, this does, and then we do
692	* right afterwards == very inefficient! */
693	if (hdaR3StreamTransferIsScheduled(pStream, tsNow))
694	{
695	uint64_t const tsNext = hdaR3StreamTransferGetNext(pStream);
696	if (tsExpire > tsNext)
697	tsExpire = tsNext;
698	}
699	}
700
701	/*
702	* Make sure to not go backwards in time, as this will assert in TMTimerSet().
703	* This in theory could happen in hdaR3StreamTransferGetNext() from above.
704	*/
705	if (tsExpire < tsNow)
706	tsExpire = tsNow;
707
708	int rc = PDMDevHlpTimerSet(pDevIns, pStream->hTimer, tsExpire);
709	AssertRCReturn(rc, false);
710
711	return true;
712	}
713
714	#endif /* IN_RING3 */

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source: vbox/trunk/src/VBox/Devices/Audio/DevHDACommon.cpp@ 82425

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