DevSB16.cpp@ 70671

Last change on this file since 70671 was 70671, checked in by vboxsync, 7 years ago
Audio/SB16: A couple more checks needed for the dynamic attaching / detaching stuff.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 84.6 KB

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1	/* $Id: DevSB16.cpp 70671 2018-01-22 09:15:10Z vboxsync $ */
2	/** @file
3	* DevSB16 - VBox SB16 Audio Controller.
4	*/
5
6	/*
7	* Copyright (C) 2015-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	* --------------------------------------------------------------------
17	*
18	* This code is based on: sb16.c from QEMU AUDIO subsystem (r3917).
19	* QEMU Soundblaster 16 emulation
20	*
21	* Copyright (c) 2003-2005 Vassili Karpov (malc)
22	*
23	* Permission is hereby granted, free of charge, to any person obtaining a copy
24	* of this software and associated documentation files (the "Software"), to deal
25	* in the Software without restriction, including without limitation the rights
26	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
27	* copies of the Software, and to permit persons to whom the Software is
28	* furnished to do so, subject to the following conditions:
29	*
30	* The above copyright notice and this permission notice shall be included in
31	* all copies or substantial portions of the Software.
32	*
33	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
34	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
35	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
36	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
37	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
38	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
39	* THE SOFTWARE.
40	*/
41
42
43	/*********************************************************************************************************************************
44	* Header Files *
45	*********************************************************************************************************************************/
46	#define LOG_GROUP LOG_GROUP_DEV_SB16
47	#include <VBox/log.h>
48	#include <iprt/assert.h>
49	#include <iprt/file.h>
50	#ifdef IN_RING3
51	# include <iprt/mem.h>
52	# include <iprt/string.h>
53	# include <iprt/uuid.h>
54	#endif
55
56	#include <VBox/vmm/pdmdev.h>
57	#include <VBox/vmm/pdmaudioifs.h>
58
59	#include "VBoxDD.h"
60
61	#include "AudioMixBuffer.h"
62	#include "AudioMixer.h"
63	#include "DrvAudio.h"
64
65
66	/*********************************************************************************************************************************
67	* Defined Constants And Macros *
68	*********************************************************************************************************************************/
69	/** Current saved state version. */
70	#define SB16_SAVE_STATE_VERSION 2
71	/** The version used in VirtualBox version 3.0 and earlier. This didn't include the config dump. */
72	#define SB16_SAVE_STATE_VERSION_VBOX_30 1
73
74	#define IO_READ_PROTO(name) \
75	DECLCALLBACK(int) name (PPDMDEVINS pDevIns, void *opaque, \
76	RTIOPORT nport, uint32_t *pu32, unsigned cb)
77
78	#define IO_WRITE_PROTO(name) \
79	DECLCALLBACK(int) name (PPDMDEVINS pDevIns, void *opaque, \
80	RTIOPORT nport, uint32_t val, unsigned cb)
81
82
83	/*********************************************************************************************************************************
84	* Global Variables *
85	*********************************************************************************************************************************/
86	static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992.";
87
88
89
90	/*********************************************************************************************************************************
91	* Structures and Typedefs *
92	*********************************************************************************************************************************/
93	/**
94	* Structure defining a (host backend) driver stream.
95	* Each driver has its own instances of audio mixer streams, which then
96	* can go into the same (or even different) audio mixer sinks.
97	*/
98	typedef struct SB16DRIVERSTREAM
99	{
100	/** Associated PDM audio stream. */
101	R3PTRTYPE(PPDMAUDIOSTREAM) pStream;
102	/** The stream's current configuration. */
103	} SB16DRIVERSTREAM, *PSB16DRIVERSTREAM;
104
105	/**
106	* Struct for maintaining a host backend driver.
107	*/
108	typedef struct SB16STATE *PSB16STATE;
109	typedef struct SB16DRIVER
110	{
111	/** Node for storing this driver in our device driver list of SB16STATE. */
112	RTLISTNODER3 Node;
113	/** Pointer to SB16 controller (state). */
114	R3PTRTYPE(PSB16STATE) pSB16State;
115	/** Driver flags. */
116	PDMAUDIODRVFLAGS fFlags;
117	uint32_t PaddingFlags;
118	/** LUN # to which this driver has been assigned. */
119	uint8_t uLUN;
120	/** Whether this driver is in an attached state or not. */
121	bool fAttached;
122	uint8_t Padding[4];
123	/** Pointer to attached driver base interface. */
124	R3PTRTYPE(PPDMIBASE) pDrvBase;
125	/** Audio connector interface to the underlying host backend. */
126	R3PTRTYPE(PPDMIAUDIOCONNECTOR) pConnector;
127	/** Stream for output. */
128	SB16DRIVERSTREAM Out;
129	} SB16DRIVER, *PSB16DRIVER;
130
131	/**
132	* Structure for a SB16 stream.
133	*/
134	typedef struct SB16STREAM
135	{
136	/** The stream's current configuration. */
137	PDMAUDIOSTREAMCFG Cfg;
138	} SB16STREAM, *PSB16STREAM;
139
140	typedef struct SB16STATE
141	{
142	#ifdef VBOX
143	/** Pointer to the device instance. */
144	PPDMDEVINSR3 pDevInsR3;
145	/** Pointer to the connector of the attached audio driver. */
146	PPDMIAUDIOCONNECTOR pDrv;
147	int irqCfg;
148	int dmaCfg;
149	int hdmaCfg;
150	int portCfg;
151	int verCfg;
152	#endif
153	int irq;
154	int dma;
155	int hdma;
156	int port;
157	int ver;
158
159	int in_index;
160	int out_data_len;
161	int fmt_stereo;
162	int fmt_signed;
163	int fmt_bits;
164	PDMAUDIOFMT fmt;
165	int dma_auto;
166	int block_size;
167	int fifo;
168	int freq;
169	int time_const;
170	int speaker;
171	int needed_bytes;
172	int cmd;
173	int use_hdma;
174	int highspeed;
175	int can_write; /** @todo Value never gets 0? */
176
177	int v2x6;
178
179	uint8_t csp_param;
180	uint8_t csp_value;
181	uint8_t csp_mode;
182	uint8_t csp_regs[256];
183	uint8_t csp_index;
184	uint8_t csp_reg83[4];
185	int csp_reg83r;
186	int csp_reg83w;
187
188	uint8_t in2_data[10];
189	uint8_t out_data[50];
190	uint8_t test_reg;
191	uint8_t last_read_byte;
192	int nzero;
193
194	int left_till_irq; /** Note: Can be < 0. */
195
196	int dma_running;
197	int bytes_per_second;
198	int align;
199
200	RTLISTANCHOR lstDrv;
201	/** Number of active (running) SDn streams. */
202	uint8_t cStreamsActive;
203	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
204	/** The timer for pumping data thru the attached LUN drivers. */
205	PTMTIMERR3 pTimerIO;
206	/** Flag indicating whether the timer is active or not. */
207	bool fTimerActive;
208	uint8_t u8Padding1[7];
209	/** The timer interval for pumping data thru the LUN drivers in timer ticks. */
210	uint64_t cTimerTicksIO;
211	/** Timestamp of the last timer callback (sb16TimerIO).
212	* Used to calculate the time actually elapsed between two timer callbacks. */
213	uint64_t uTimerTSIO;
214	#endif
215	PTMTIMER pTimerIRQ;
216	/** The base interface for LUN\#0. */
217	PDMIBASE IBase;
218	/** Output stream. */
219	SB16STREAM Out;
220
221	/* mixer state */
222	int mixer_nreg;
223	uint8_t mixer_regs[256];
224	} SB16STATE, *PSB16STATE;
225
226
227	/*********************************************************************************************************************************
228	* Internal Functions *
229	*********************************************************************************************************************************/
230	static int sb16CreateDrvStream(PSB16STATE pThis, PPDMAUDIOSTREAMCFG pCfg, PSB16DRIVER pDrv);
231	static void sb16DestroyDrvStream(PSB16STATE pThis, PSB16DRIVER pDrv);
232	static int sb16OpenOut(PSB16STATE pThis, PPDMAUDIOSTREAMCFG pCfg);
233	static void sb16CloseOut(PSB16STATE pThis);
234	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
235	static void sb16TimerMaybeStart(PSB16STATE pThis);
236	static void sb16TimerMaybeStop(PSB16STATE pThis);
237	#endif
238
239
240
241	/**
242	* Attach command, internal version.
243	*
244	* This is called to let the device attach to a driver for a specified LUN
245	* during runtime. This is not called during VM construction, the device
246	* constructor has to attach to all the available drivers.
247	*
248	* @returns VBox status code.
249	* @param pThis SB16 state.
250	* @param uLUN The logical unit which is being detached.
251	* @param fFlags Flags, combination of the PDMDEVATT_FLAGS_* \#defines.
252	* @param ppDrv Attached driver instance on success. Optional.
253	*/
254	static int sb16AttachInternal(PSB16STATE pThis, unsigned uLUN, uint32_t fFlags, PSB16DRIVER *ppDrv)
255	{
256	RT_NOREF(fFlags);
257
258	/*
259	* Attach driver.
260	*/
261	char *pszDesc;
262	if (RTStrAPrintf(&pszDesc, "Audio driver port (SB16) for LUN #%u", uLUN) <= 0)
263	AssertLogRelFailedReturn(VERR_NO_MEMORY);
264
265	PPDMIBASE pDrvBase;
266	int rc = PDMDevHlpDriverAttach(pThis->pDevInsR3, uLUN,
267	&pThis->IBase, &pDrvBase, pszDesc);
268	if (RT_SUCCESS(rc))
269	{
270	PSB16DRIVER pDrv = (PSB16DRIVER)RTMemAllocZ(sizeof(SB16DRIVER));
271	if (pDrv)
272	{
273	pDrv->pDrvBase = pDrvBase;
274	pDrv->pConnector = PDMIBASE_QUERY_INTERFACE(pDrvBase, PDMIAUDIOCONNECTOR);
275	AssertMsg(pDrv->pConnector != NULL, ("Configuration error: LUN #%u has no host audio interface, rc=%Rrc\n", uLUN, rc));
276	pDrv->pSB16State = pThis;
277	pDrv->uLUN = uLUN;
278
279	/*
280	* For now we always set the driver at LUN 0 as our primary
281	* host backend. This might change in the future.
282	*/
283	if (pDrv->uLUN == 0)
284	pDrv->fFlags \|= PDMAUDIODRVFLAGS_PRIMARY;
285
286	LogFunc(("LUN#%RU8: pCon=%p, drvFlags=0x%x\n", uLUN, pDrv->pConnector, pDrv->fFlags));
287
288	/* Attach to driver list if not attached yet. */
289	if (!pDrv->fAttached)
290	{
291	RTListAppend(&pThis->lstDrv, &pDrv->Node);
292	pDrv->fAttached = true;
293	}
294
295	if (ppDrv)
296	*ppDrv = pDrv;
297	}
298	else
299	rc = VERR_NO_MEMORY;
300	}
301	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
302	LogFunc(("No attached driver for LUN #%u\n", uLUN));
303
304	if (RT_FAILURE(rc))
305	{
306	/* Only free this string on failure;
307	* must remain valid for the live of the driver instance. */
308	RTStrFree(pszDesc);
309	}
310
311	LogFunc(("iLUN=%u, fFlags=0x%x, rc=%Rrc\n", uLUN, fFlags, rc));
312	return rc;
313	}
314
315	/**
316	* Detach command, internal version.
317	*
318	* This is called to let the device detach from a driver for a specified LUN
319	* during runtime.
320	*
321	* @returns VBox status code.
322	* @param pThis SB16 state.
323	* @param pDrv Driver to detach device from.
324	* @param fFlags Flags, combination of the PDMDEVATT_FLAGS_* \#defines.
325	*/
326	static int sb16DetachInternal(PSB16STATE pThis, PSB16DRIVER pDrv, uint32_t fFlags)
327	{
328	RT_NOREF(fFlags);
329
330	sb16DestroyDrvStream(pThis, pDrv);
331
332	RTListNodeRemove(&pDrv->Node);
333
334	LogFunc(("uLUN=%u, fFlags=0x%x\n", pDrv->uLUN, fFlags));
335	return VINF_SUCCESS;
336	}
337
338	/**
339	* @interface_method_impl{PDMDEVREG,pfnAttach}
340	*/
341	static DECLCALLBACK(int) sb16Attach(PPDMDEVINS pDevIns, unsigned uLUN, uint32_t fFlags)
342	{
343	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
344
345	LogFunc(("uLUN=%u, fFlags=0x%x\n", uLUN, fFlags));
346
347	PSB16DRIVER pDrv;
348	int rc2 = sb16AttachInternal(pThis, uLUN, fFlags, &pDrv);
349	if (RT_SUCCESS(rc2))
350	rc2 = sb16CreateDrvStream(pThis, &pThis->Out.Cfg, pDrv);
351
352	return VINF_SUCCESS;
353	}
354
355	/**
356	* @interface_method_impl{PDMDEVREG,pfnDetach}
357	*/
358	static DECLCALLBACK(void) sb16Detach(PPDMDEVINS pDevIns, unsigned uLUN, uint32_t fFlags)
359	{
360	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
361
362	LogFunc(("uLUN=%u, fFlags=0x%x\n", uLUN, fFlags));
363
364	PSB16DRIVER pDrv, pDrvNext;
365	RTListForEachSafe(&pThis->lstDrv, pDrv, pDrvNext, SB16DRIVER, Node)
366	{
367	if (pDrv->uLUN == uLUN)
368	{
369	int rc2 = sb16DetachInternal(pThis, pDrv, fFlags);
370	if (RT_SUCCESS(rc2))
371	{
372	RTMemFree(pDrv);
373	pDrv = NULL;
374	}
375
376	break;
377	}
378	}
379	}
380
381	/**
382	* Re-attaches (replaces) a driver with a new driver.
383	*
384	* @returns VBox status code.
385	* @param pThis Device instance.
386	* @param pDrv Driver instance used for attaching to.
387	* If NULL is specified, a new driver will be created and appended
388	* to the driver list.
389	* @param uLUN The logical unit which is being re-detached.
390	* @param pszDriver New driver name to attach.
391	*/
392	static int sb16Reattach(PSB16STATE pThis, PSB16DRIVER pDrv, uint8_t uLUN, const char *pszDriver)
393	{
394	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
395	AssertPtrReturn(pszDriver, VERR_INVALID_POINTER);
396
397	int rc;
398
399	if (pDrv)
400	{
401	rc = sb16DetachInternal(pThis, pDrv, 0 /* fFlags */);
402	if (RT_SUCCESS(rc))
403	rc = PDMDevHlpDriverDetach(pThis->pDevInsR3, PDMIBASE_2_PDMDRV(pDrv->pDrvBase), 0 /* fFlags */);
404
405	if (RT_FAILURE(rc))
406	return rc;
407
408	pDrv = NULL;
409	}
410
411	PVM pVM = PDMDevHlpGetVM(pThis->pDevInsR3);
412	PCFGMNODE pRoot = CFGMR3GetRoot(pVM);
413	PCFGMNODE pDev0 = CFGMR3GetChild(pRoot, "Devices/sb16/0/");
414
415	/* Remove LUN branch. */
416	CFGMR3RemoveNode(CFGMR3GetChildF(pDev0, "LUN#%u/", uLUN));
417
418	if (pDrv)
419	{
420	/* Re-use the driver instance so detach it before. */
421	rc = PDMDevHlpDriverDetach(pThis->pDevInsR3, PDMIBASE_2_PDMDRV(pDrv->pDrvBase), 0 /* fFlags */);
422	if (RT_FAILURE(rc))
423	return rc;
424	}
425
426	#define RC_CHECK() if (RT_FAILURE(rc)) { AssertReleaseRC(rc); break; }
427
428	do
429	{
430	PCFGMNODE pLunL0;
431	rc = CFGMR3InsertNodeF(pDev0, &pLunL0, "LUN#%u/", uLUN); RC_CHECK();
432	rc = CFGMR3InsertString(pLunL0, "Driver", "AUDIO"); RC_CHECK();
433	rc = CFGMR3InsertNode(pLunL0, "Config/", NULL); RC_CHECK();
434
435	PCFGMNODE pLunL1, pLunL2;
436	rc = CFGMR3InsertNode (pLunL0, "AttachedDriver/", &pLunL1); RC_CHECK();
437	rc = CFGMR3InsertNode (pLunL1, "Config/", &pLunL2); RC_CHECK();
438	rc = CFGMR3InsertString(pLunL1, "Driver", pszDriver); RC_CHECK();
439
440	rc = CFGMR3InsertString(pLunL2, "AudioDriver", pszDriver); RC_CHECK();
441
442	} while (0);
443
444	if (RT_SUCCESS(rc))
445	rc = sb16AttachInternal(pThis, uLUN, 0 /* fFlags /, NULL / ppDrv */);
446
447	LogFunc(("pThis=%p, uLUN=%u, pszDriver=%s, rc=%Rrc\n", pThis, uLUN, pszDriver, rc));
448
449	#undef RC_CHECK
450
451	return rc;
452	}
453
454	static int magic_of_irq(int irq)
455	{
456	switch (irq)
457	{
458	case 5:
459	return 2;
460	case 7:
461	return 4;
462	case 9:
463	return 1;
464	case 10:
465	return 8;
466	default:
467	break;
468	}
469
470	LogFlowFunc(("bad irq %d\n", irq));
471	return 2;
472	}
473
474	static int irq_of_magic(int magic)
475	{
476	switch (magic)
477	{
478	case 1:
479	return 9;
480	case 2:
481	return 5;
482	case 4:
483	return 7;
484	case 8:
485	return 10;
486	default:
487	break;
488	}
489
490	LogFlowFunc(("bad irq magic %d\n", magic));
491	return -1;
492	}
493
494	#if 0 // unused // def DEBUG
495	DECLINLINE(void) log_dsp(PSB16STATE pThis)
496	{
497	LogFlowFunc(("%s:%s:%d:%s:dmasize=%d:freq=%d:const=%d:speaker=%d\n",
498	pThis->fmt_stereo ? "Stereo" : "Mono",
499	pThis->fmt_signed ? "Signed" : "Unsigned",
500	pThis->fmt_bits,
501	pThis->dma_auto ? "Auto" : "Single",
502	pThis->block_size,
503	pThis->freq,
504	pThis->time_const,
505	pThis->speaker));
506	}
507	#endif
508
509	static void sb16SpeakerControl(PSB16STATE pThis, int on)
510	{
511	pThis->speaker = on;
512	/* AUD_enable (pThis->voice, on); */
513	}
514
515	static void sb16Control(PSB16STATE pThis, int hold)
516	{
517	int dma = pThis->use_hdma ? pThis->hdma : pThis->dma;
518	pThis->dma_running = hold;
519
520	LogFlowFunc(("hold %d high %d dma %d\n", hold, pThis->use_hdma, dma));
521
522	PDMDevHlpDMASetDREQ(pThis->pDevInsR3, dma, hold);
523
524	PSB16DRIVER pDrv;
525	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
526	{
527	if (!pDrv->Out.pStream)
528	continue;
529
530	int rc2 = pDrv->pConnector->pfnStreamControl(pDrv->pConnector, pDrv->Out.pStream,
531	hold == 1 ? PDMAUDIOSTREAMCMD_ENABLE : PDMAUDIOSTREAMCMD_DISABLE);
532	LogFlowFunc(("%s: rc=%Rrc\n", pDrv->Out.pStream->szName, rc2)); NOREF(rc2);
533	}
534
535	if (hold)
536	{
537	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
538	pThis->cStreamsActive++;
539	sb16TimerMaybeStart(pThis);
540	#else
541	# error "Implement me!"
542	#endif
543	PDMDevHlpDMASchedule(pThis->pDevInsR3);
544	}
545	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
546	else
547	{
548	if (pThis->cStreamsActive)
549	pThis->cStreamsActive--;
550	sb16TimerMaybeStop(pThis);
551	}
552	#else
553	# error "Implement me!"
554	#endif
555	}
556
557	static DECLCALLBACK(void) sb16TimerIRQ(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvThis)
558	{
559	RT_NOREF(pDevIns, pTimer);
560	PSB16STATE pThis = (PSB16STATE)pvThis;
561	pThis->can_write = 1;
562	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
563	}
564
565	#define DMA8_AUTO 1
566	#define DMA8_HIGH 2
567
568	static void continue_dma8(PSB16STATE pThis)
569	{
570	if (pThis->freq > 0)
571	{
572	/* At the moment we only have one stream, the output stream. */
573	PPDMAUDIOSTREAMCFG pCfg = &pThis->Out.Cfg;
574
575	pCfg->enmDir = PDMAUDIODIR_OUT;
576	pCfg->DestSource.Dest = PDMAUDIOPLAYBACKDEST_FRONT;
577	pCfg->enmLayout = PDMAUDIOSTREAMLAYOUT_NON_INTERLEAVED;
578
579	pCfg->Props.uHz = pThis->freq;
580	pCfg->Props.cChannels = 1 << pThis->fmt_stereo;
581	pCfg->Props.cBits = pThis->fmt_bits;
582	pCfg->Props.fSigned = RT_BOOL(pThis->fmt_signed);
583	pCfg->Props.cShift = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pCfg->Props.cBits, pCfg->Props.cChannels);
584
585	RTStrPrintf(pCfg->szName, sizeof(pCfg->szName), "Output");
586
587	sb16CloseOut(pThis);
588
589	int rc = sb16OpenOut(pThis, pCfg);
590	AssertRC(rc);
591	}
592
593	sb16Control(pThis, 1);
594	}
595
596	static void dma_cmd8(PSB16STATE pThis, int mask, int dma_len)
597	{
598	pThis->fmt = PDMAUDIOFMT_U8;
599	pThis->use_hdma = 0;
600	pThis->fmt_bits = 8;
601	pThis->fmt_signed = 0;
602	pThis->fmt_stereo = (pThis->mixer_regs[0x0e] & 2) != 0;
603
604	if (-1 == pThis->time_const)
605	{
606	if (pThis->freq <= 0)
607	pThis->freq = 11025;
608	}
609	else
610	{
611	int tmp = (256 - pThis->time_const);
612	pThis->freq = (1000000 + (tmp / 2)) / tmp;
613	}
614
615	if (dma_len != -1)
616	{
617	pThis->block_size = dma_len << pThis->fmt_stereo;
618	}
619	else
620	{
621	/* This is apparently the only way to make both Act1/PL
622	and SecondReality/FC work
623
624	r=andy Wow, actually someone who remembers Future Crew :-)
625
626	Act1 sets block size via command 0x48 and it's an odd number
627	SR does the same with even number
628	Both use stereo, and Creatives own documentation states that
629	0x48 sets block size in bytes less one.. go figure */
630	pThis->block_size &= ~pThis->fmt_stereo;
631	}
632
633	pThis->freq >>= pThis->fmt_stereo;
634	pThis->left_till_irq = pThis->block_size;
635	pThis->bytes_per_second = (pThis->freq << pThis->fmt_stereo);
636	/* pThis->highspeed = (mask & DMA8_HIGH) != 0; */
637	pThis->dma_auto = (mask & DMA8_AUTO) != 0;
638	pThis->align = (1 << pThis->fmt_stereo) - 1;
639
640	if (pThis->block_size & pThis->align)
641	LogFlowFunc(("warning: misaligned block size %d, alignment %d\n",
642	pThis->block_size, pThis->align + 1));
643
644	LogFlowFunc(("freq %d, stereo %d, sign %d, bits %d, dma %d, auto %d, fifo %d, high %d\n",
645	pThis->freq, pThis->fmt_stereo, pThis->fmt_signed, pThis->fmt_bits,
646	pThis->block_size, pThis->dma_auto, pThis->fifo, pThis->highspeed));
647
648	continue_dma8(pThis);
649	sb16SpeakerControl(pThis, 1);
650	}
651
652	static void dma_cmd(PSB16STATE pThis, uint8_t cmd, uint8_t d0, int dma_len)
653	{
654	pThis->use_hdma = cmd < 0xc0;
655	pThis->fifo = (cmd >> 1) & 1;
656	pThis->dma_auto = (cmd >> 2) & 1;
657	pThis->fmt_signed = (d0 >> 4) & 1;
658	pThis->fmt_stereo = (d0 >> 5) & 1;
659
660	switch (cmd >> 4)
661	{
662	case 11:
663	pThis->fmt_bits = 16;
664	break;
665
666	case 12:
667	pThis->fmt_bits = 8;
668	break;
669	}
670
671	if (-1 != pThis->time_const)
672	{
673	#if 1
674	int tmp = 256 - pThis->time_const;
675	pThis->freq = (1000000 + (tmp / 2)) / tmp;
676	#else
677	/* pThis->freq = 1000000 / ((255 - pThis->time_const) << pThis->fmt_stereo); */
678	pThis->freq = 1000000 / ((255 - pThis->time_const));
679	#endif
680	pThis->time_const = -1;
681	}
682
683	pThis->block_size = dma_len + 1;
684	pThis->block_size <<= ((pThis->fmt_bits == 16) ? 1 : 0);
685	if (!pThis->dma_auto)
686	{
687	/*
688	* It is clear that for DOOM and auto-init this value
689	* shouldn't take stereo into account, while Miles Sound Systems
690	* setsound.exe with single transfer mode wouldn't work without it
691	* wonders of SB16 yet again.
692	*/
693	pThis->block_size <<= pThis->fmt_stereo;
694	}
695
696	LogFlowFunc(("freq %d, stereo %d, sign %d, bits %d, dma %d, auto %d, fifo %d, high %d\n",
697	pThis->freq, pThis->fmt_stereo, pThis->fmt_signed, pThis->fmt_bits,
698	pThis->block_size, pThis->dma_auto, pThis->fifo, pThis->highspeed));
699
700	if (16 == pThis->fmt_bits)
701	pThis->fmt = pThis->fmt_signed ? PDMAUDIOFMT_S16 : PDMAUDIOFMT_U16;
702	else
703	pThis->fmt = pThis->fmt_signed ? PDMAUDIOFMT_S8 : PDMAUDIOFMT_U8;
704
705	pThis->left_till_irq = pThis->block_size;
706
707	pThis->bytes_per_second = (pThis->freq << pThis->fmt_stereo) << ((pThis->fmt_bits == 16) ? 1 : 0);
708	pThis->highspeed = 0;
709	pThis->align = (1 << (pThis->fmt_stereo + (pThis->fmt_bits == 16))) - 1;
710	if (pThis->block_size & pThis->align)
711	{
712	LogFlowFunc(("warning: misaligned block size %d, alignment %d\n",
713	pThis->block_size, pThis->align + 1));
714	}
715
716	if (pThis->freq)
717	{
718	/* At the moment we only have one stream, the output stream. */
719	PPDMAUDIOSTREAMCFG pCfg = &pThis->Out.Cfg;
720
721	pCfg->enmDir = PDMAUDIODIR_OUT;
722	pCfg->DestSource.Dest = PDMAUDIOPLAYBACKDEST_FRONT;
723	pCfg->enmLayout = PDMAUDIOSTREAMLAYOUT_NON_INTERLEAVED;
724
725	pCfg->Props.uHz = pThis->freq;
726	pCfg->Props.cChannels = 1 << pThis->fmt_stereo;
727	pCfg->Props.cBits = pThis->fmt_bits;
728	pCfg->Props.fSigned = RT_BOOL(pThis->fmt_signed);
729	pCfg->Props.cShift = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pCfg->Props.cBits, pCfg->Props.cChannels);
730
731	RTStrPrintf(pCfg->szName, sizeof(pCfg->szName), "Output");
732
733	sb16CloseOut(pThis);
734
735	int rc = sb16OpenOut(pThis, pCfg);
736	AssertRC(rc);
737	}
738
739	sb16Control(pThis, 1);
740	sb16SpeakerControl(pThis, 1);
741	}
742
743	static inline void dsp_out_data (PSB16STATE pThis, uint8_t val)
744	{
745	LogFlowFunc(("outdata %#x\n", val));
746	if ((size_t) pThis->out_data_len < sizeof (pThis->out_data)) {
747	pThis->out_data[pThis->out_data_len++] = val;
748	}
749	}
750
751	static inline uint8_t dsp_get_data (PSB16STATE pThis)
752	{
753	if (pThis->in_index) {
754	return pThis->in2_data[--pThis->in_index];
755	}
756	else {
757	LogFlowFunc(("buffer underflow\n"));
758	return 0;
759	}
760	}
761
762	static void sb16HandleCommand(PSB16STATE pThis, uint8_t cmd)
763	{
764	LogFlowFunc(("command %#x\n", cmd));
765
766	if (cmd > 0xaf && cmd < 0xd0)
767	{
768	if (cmd & 8) /** @todo Handle recording. */
769	LogFlowFunc(("ADC not yet supported (command %#x)\n", cmd));
770
771	switch (cmd >> 4)
772	{
773	case 11:
774	case 12:
775	break;
776	default:
777	LogFlowFunc(("%#x wrong bits\n", cmd));
778	}
779
780	pThis->needed_bytes = 3;
781	}
782	else
783	{
784	pThis->needed_bytes = 0;
785
786	switch (cmd)
787	{
788	case 0x03:
789	dsp_out_data(pThis, 0x10); /* pThis->csp_param); */
790	goto warn;
791
792	case 0x04:
793	pThis->needed_bytes = 1;
794	goto warn;
795
796	case 0x05:
797	pThis->needed_bytes = 2;
798	goto warn;
799
800	case 0x08:
801	/* __asm__ ("int3"); */
802	goto warn;
803
804	case 0x0e:
805	pThis->needed_bytes = 2;
806	goto warn;
807
808	case 0x09:
809	dsp_out_data(pThis, 0xf8);
810	goto warn;
811
812	case 0x0f:
813	pThis->needed_bytes = 1;
814	goto warn;
815
816	case 0x10:
817	pThis->needed_bytes = 1;
818	goto warn;
819
820	case 0x14:
821	pThis->needed_bytes = 2;
822	pThis->block_size = 0;
823	break;
824
825	case 0x1c: /* Auto-Initialize DMA DAC, 8-bit */
826	dma_cmd8(pThis, DMA8_AUTO, -1);
827	break;
828
829	case 0x20: /* Direct ADC, Juice/PL */
830	dsp_out_data(pThis, 0xff);
831	goto warn;
832
833	case 0x35:
834	LogFlowFunc(("0x35 - MIDI command not implemented\n"));
835	break;
836
837	case 0x40:
838	pThis->freq = -1;
839	pThis->time_const = -1;
840	pThis->needed_bytes = 1;
841	break;
842
843	case 0x41:
844	pThis->freq = -1;
845	pThis->time_const = -1;
846	pThis->needed_bytes = 2;
847	break;
848
849	case 0x42:
850	pThis->freq = -1;
851	pThis->time_const = -1;
852	pThis->needed_bytes = 2;
853	goto warn;
854
855	case 0x45:
856	dsp_out_data(pThis, 0xaa);
857	goto warn;
858
859	case 0x47: /* Continue Auto-Initialize DMA 16bit */
860	break;
861
862	case 0x48:
863	pThis->needed_bytes = 2;
864	break;
865
866	case 0x74:
867	pThis->needed_bytes = 2; /* DMA DAC, 4-bit ADPCM */
868	LogFlowFunc(("0x75 - DMA DAC, 4-bit ADPCM not implemented\n"));
869	break;
870
871	case 0x75: /* DMA DAC, 4-bit ADPCM Reference */
872	pThis->needed_bytes = 2;
873	LogFlowFunc(("0x74 - DMA DAC, 4-bit ADPCM Reference not implemented\n"));
874	break;
875
876	case 0x76: /* DMA DAC, 2.6-bit ADPCM */
877	pThis->needed_bytes = 2;
878	LogFlowFunc(("0x74 - DMA DAC, 2.6-bit ADPCM not implemented\n"));
879	break;
880
881	case 0x77: /* DMA DAC, 2.6-bit ADPCM Reference */
882	pThis->needed_bytes = 2;
883	LogFlowFunc(("0x74 - DMA DAC, 2.6-bit ADPCM Reference not implemented\n"));
884	break;
885
886	case 0x7d:
887	LogFlowFunc(("0x7d - Autio-Initialize DMA DAC, 4-bit ADPCM Reference\n"));
888	LogFlowFunc(("not implemented\n"));
889	break;
890
891	case 0x7f:
892	LogFlowFunc(("0x7d - Autio-Initialize DMA DAC, 2.6-bit ADPCM Reference\n"));
893	LogFlowFunc(("not implemented\n"));
894	break;
895
896	case 0x80:
897	pThis->needed_bytes = 2;
898	break;
899
900	case 0x90:
901	case 0x91:
902	dma_cmd8(pThis, (((cmd & 1) == 0) ? 1 : 0) \| DMA8_HIGH, -1);
903	break;
904
905	case 0xd0: /* halt DMA operation. 8bit */
906	sb16Control(pThis, 0);
907	break;
908
909	case 0xd1: /* speaker on */
910	sb16SpeakerControl(pThis, 1);
911	break;
912
913	case 0xd3: /* speaker off */
914	sb16SpeakerControl(pThis, 0);
915	break;
916
917	case 0xd4: /* continue DMA operation. 8bit */
918	/* KQ6 (or maybe Sierras audblst.drv in general) resets
919	the frequency between halt/continue */
920	continue_dma8(pThis);
921	break;
922
923	case 0xd5: /* halt DMA operation. 16bit */
924	sb16Control(pThis, 0);
925	break;
926
927	case 0xd6: /* continue DMA operation. 16bit */
928	sb16Control(pThis, 1);
929	break;
930
931	case 0xd9: /* exit auto-init DMA after this block. 16bit */
932	pThis->dma_auto = 0;
933	break;
934
935	case 0xda: /* exit auto-init DMA after this block. 8bit */
936	pThis->dma_auto = 0;
937	break;
938
939	case 0xe0: /* DSP identification */
940	pThis->needed_bytes = 1;
941	break;
942
943	case 0xe1:
944	dsp_out_data(pThis, pThis->ver & 0xff);
945	dsp_out_data(pThis, pThis->ver >> 8);
946	break;
947
948	case 0xe2:
949	pThis->needed_bytes = 1;
950	goto warn;
951
952	case 0xe3:
953	{
954	for (int i = sizeof (e3) - 1; i >= 0; --i)
955	dsp_out_data(pThis, e3[i]);
956
957	break;
958	}
959
960	case 0xe4: /* write test reg */
961	pThis->needed_bytes = 1;
962	break;
963
964	case 0xe7:
965	LogFlowFunc(("Attempt to probe for ESS (0xe7)?\n"));
966	break;
967
968	case 0xe8: /* read test reg */
969	dsp_out_data(pThis, pThis->test_reg);
970	break;
971
972	case 0xf2:
973	case 0xf3:
974	dsp_out_data(pThis, 0xaa);
975	pThis->mixer_regs[0x82] \|= (cmd == 0xf2) ? 1 : 2;
976	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
977	break;
978
979	case 0xf8:
980	/* Undocumented, used by old Creative diagnostic programs. */
981	dsp_out_data (pThis, 0);
982	goto warn;
983
984	case 0xf9:
985	pThis->needed_bytes = 1;
986	goto warn;
987
988	case 0xfa:
989	dsp_out_data (pThis, 0);
990	goto warn;
991
992	case 0xfc: /* FIXME */
993	dsp_out_data (pThis, 0);
994	goto warn;
995
996	default:
997	LogFlowFunc(("Unrecognized command %#x\n", cmd));
998	break;
999	}
1000	}
1001
1002	if (!pThis->needed_bytes)
1003	LogFlow(("\n"));
1004
1005	exit:
1006
1007	if (!pThis->needed_bytes)
1008	pThis->cmd = -1;
1009	else
1010	pThis->cmd = cmd;
1011
1012	return;
1013
1014	warn:
1015	LogFlowFunc(("warning: command %#x,%d is not truly understood yet\n",
1016	cmd, pThis->needed_bytes));
1017	goto exit;
1018	}
1019
1020	static uint16_t dsp_get_lohi (PSB16STATE pThis)
1021	{
1022	uint8_t hi = dsp_get_data (pThis);
1023	uint8_t lo = dsp_get_data (pThis);
1024	return (hi << 8) \| lo;
1025	}
1026
1027	static uint16_t dsp_get_hilo (PSB16STATE pThis)
1028	{
1029	uint8_t lo = dsp_get_data (pThis);
1030	uint8_t hi = dsp_get_data (pThis);
1031	return (hi << 8) \| lo;
1032	}
1033
1034	static void complete(PSB16STATE pThis)
1035	{
1036	int d0, d1, d2;
1037	LogFlowFunc(("complete command %#x, in_index %d, needed_bytes %d\n",
1038	pThis->cmd, pThis->in_index, pThis->needed_bytes));
1039
1040	if (pThis->cmd > 0xaf && pThis->cmd < 0xd0)
1041	{
1042	d2 = dsp_get_data (pThis);
1043	d1 = dsp_get_data (pThis);
1044	d0 = dsp_get_data (pThis);
1045
1046	if (pThis->cmd & 8)
1047	LogFlowFunc(("ADC params cmd = %#x d0 = %d, d1 = %d, d2 = %d\n", pThis->cmd, d0, d1, d2));
1048	else
1049	{
1050	LogFlowFunc(("cmd = %#x d0 = %d, d1 = %d, d2 = %d\n", pThis->cmd, d0, d1, d2));
1051	dma_cmd(pThis, pThis->cmd, d0, d1 + (d2 << 8));
1052	}
1053	}
1054	else
1055	{
1056	switch (pThis->cmd)
1057	{
1058	case 0x04:
1059	pThis->csp_mode = dsp_get_data (pThis);
1060	pThis->csp_reg83r = 0;
1061	pThis->csp_reg83w = 0;
1062	LogFlowFunc(("CSP command 0x04: mode=%#x\n", pThis->csp_mode));
1063	break;
1064
1065	case 0x05:
1066	pThis->csp_param = dsp_get_data (pThis);
1067	pThis->csp_value = dsp_get_data (pThis);
1068	LogFlowFunc(("CSP command 0x05: param=%#x value=%#x\n",
1069	pThis->csp_param,
1070	pThis->csp_value));
1071	break;
1072
1073	case 0x0e:
1074	{
1075	d0 = dsp_get_data(pThis);
1076	d1 = dsp_get_data(pThis);
1077	LogFlowFunc(("write CSP register %d <- %#x\n", d1, d0));
1078	if (d1 == 0x83)
1079	{
1080	LogFlowFunc(("0x83[%d] <- %#x\n", pThis->csp_reg83r, d0));
1081	pThis->csp_reg83[pThis->csp_reg83r % 4] = d0;
1082	pThis->csp_reg83r += 1;
1083	}
1084	else
1085	pThis->csp_regs[d1] = d0;
1086	break;
1087	}
1088
1089	case 0x0f:
1090	d0 = dsp_get_data(pThis);
1091	LogFlowFunc(("read CSP register %#x -> %#x, mode=%#x\n", d0, pThis->csp_regs[d0], pThis->csp_mode));
1092	if (d0 == 0x83)
1093	{
1094	LogFlowFunc(("0x83[%d] -> %#x\n",
1095	pThis->csp_reg83w,
1096	pThis->csp_reg83[pThis->csp_reg83w % 4]));
1097	dsp_out_data (pThis, pThis->csp_reg83[pThis->csp_reg83w % 4]);
1098	pThis->csp_reg83w += 1;
1099	}
1100	else
1101	dsp_out_data(pThis, pThis->csp_regs[d0]);
1102	break;
1103
1104	case 0x10:
1105	d0 = dsp_get_data(pThis);
1106	LogFlowFunc(("cmd 0x10 d0=%#x\n", d0));
1107	break;
1108
1109	case 0x14:
1110	dma_cmd8(pThis, 0, dsp_get_lohi (pThis) + 1);
1111	break;
1112
1113	case 0x40:
1114	pThis->time_const = dsp_get_data(pThis);
1115	LogFlowFunc(("set time const %d\n", pThis->time_const));
1116	break;
1117
1118	case 0x42: /* FT2 sets output freq with this, go figure */
1119	#if 0
1120	LogFlowFunc(("cmd 0x42 might not do what it think it should\n"));
1121	#endif
1122	case 0x41:
1123	pThis->freq = dsp_get_hilo(pThis);
1124	LogFlowFunc(("set freq %d\n", pThis->freq));
1125	break;
1126
1127	case 0x48:
1128	pThis->block_size = dsp_get_lohi(pThis) + 1;
1129	LogFlowFunc(("set dma block len %d\n", pThis->block_size));
1130	break;
1131
1132	case 0x74:
1133	case 0x75:
1134	case 0x76:
1135	case 0x77:
1136	/* ADPCM stuff, ignore */
1137	break;
1138
1139	case 0x80:
1140	{
1141	int freq, samples, bytes;
1142	uint64_t ticks;
1143
1144	freq = pThis->freq > 0 ? pThis->freq : 11025;
1145	samples = dsp_get_lohi (pThis) + 1;
1146	bytes = samples << pThis->fmt_stereo << ((pThis->fmt_bits == 16) ? 1 : 0);
1147	ticks = (bytes * TMTimerGetFreq(pThis->pTimerIRQ)) / freq;
1148	if (ticks < TMTimerGetFreq(pThis->pTimerIRQ) / 1024)
1149	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
1150	else
1151	TMTimerSet(pThis->pTimerIRQ, TMTimerGet(pThis->pTimerIRQ) + ticks);
1152	LogFlowFunc(("mix silence: %d samples, %d bytes, %RU64 ticks\n", samples, bytes, ticks));
1153	break;
1154	}
1155
1156	case 0xe0:
1157	d0 = dsp_get_data(pThis);
1158	pThis->out_data_len = 0;
1159	LogFlowFunc(("E0 data = %#x\n", d0));
1160	dsp_out_data(pThis, ~d0);
1161	break;
1162
1163	case 0xe2:
1164	d0 = dsp_get_data(pThis);
1165	LogFlow(("SB16:E2 = %#x\n", d0));
1166	break;
1167
1168	case 0xe4:
1169	pThis->test_reg = dsp_get_data(pThis);
1170	break;
1171
1172	case 0xf9:
1173	d0 = dsp_get_data(pThis);
1174	LogFlowFunc(("command 0xf9 with %#x\n", d0));
1175	switch (d0) {
1176	case 0x0e:
1177	dsp_out_data(pThis, 0xff);
1178	break;
1179
1180	case 0x0f:
1181	dsp_out_data(pThis, 0x07);
1182	break;
1183
1184	case 0x37:
1185	dsp_out_data(pThis, 0x38);
1186	break;
1187
1188	default:
1189	dsp_out_data(pThis, 0x00);
1190	break;
1191	}
1192	break;
1193
1194	default:
1195	LogFlowFunc(("complete: unrecognized command %#x\n", pThis->cmd));
1196	return;
1197	}
1198	}
1199
1200	LogFlow(("\n"));
1201	pThis->cmd = -1;
1202	return;
1203	}
1204
1205	static uint8_t sb16MixRegToVol(PSB16STATE pThis, int reg)
1206	{
1207	/* The SB16 mixer has a 0 to -62dB range in 32 levels (2dB each step).
1208	* We use a 0 to -96dB range in 256 levels (0.375dB each step).
1209	* Only the top 5 bits of a mixer register are used.
1210	*/
1211	uint8_t steps = 31 - (pThis->mixer_regs[reg] >> 3);
1212	uint8_t vol = 255 - steps * 16 / 3; /* (2dB8) / (0.375dB8) */
1213	return vol;
1214	}
1215
1216	/**
1217	* Returns the device's current master volume.
1218	*
1219	* @param pThis SB16 state.
1220	* @param pVol Where to store the master volume information.
1221	*/
1222	static void sb16GetMasterVolume(PSB16STATE pThis, PPDMAUDIOVOLUME pVol)
1223	{
1224	/* There's no mute switch, only volume controls. */
1225	uint8_t lvol = sb16MixRegToVol(pThis, 0x30);
1226	uint8_t rvol = sb16MixRegToVol(pThis, 0x31);
1227
1228	pVol->fMuted = false;
1229	pVol->uLeft = lvol;
1230	pVol->uRight = rvol;
1231	}
1232
1233	/**
1234	* Returns the device's current output stream volume.
1235	*
1236	* @param pThis SB16 state.
1237	* @param pVol Where to store the output stream volume information.
1238	*/
1239	static void sb16GetPcmOutVolume(PSB16STATE pThis, PPDMAUDIOVOLUME pVol)
1240	{
1241	/* There's no mute switch, only volume controls. */
1242	uint8_t lvol = sb16MixRegToVol(pThis, 0x32);
1243	uint8_t rvol = sb16MixRegToVol(pThis, 0x33);
1244
1245	pVol->fMuted = false;
1246	pVol->uLeft = lvol;
1247	pVol->uRight = rvol;
1248	}
1249
1250	static void sb16UpdateVolume(PSB16STATE pThis)
1251	{
1252	PDMAUDIOVOLUME VolMaster;
1253	sb16GetMasterVolume(pThis, &VolMaster);
1254
1255	PDMAUDIOVOLUME VolOut;
1256	sb16GetPcmOutVolume(pThis, &VolOut);
1257
1258	/* Combine the master + output stream volume. */
1259	PDMAUDIOVOLUME VolCombined;
1260	RT_ZERO(VolCombined);
1261
1262	VolCombined.fMuted = VolMaster.fMuted \|\| VolOut.fMuted;
1263	if (!VolCombined.fMuted)
1264	{
1265	VolCombined.uLeft = ( (VolOut.uLeft ? VolOut.uLeft : 1)
1266	* (VolMaster.uLeft ? VolMaster.uLeft : 1)) / PDMAUDIO_VOLUME_MAX;
1267
1268	VolCombined.uRight = ( (VolOut.uRight ? VolOut.uRight : 1)
1269	* (VolMaster.uRight ? VolMaster.uRight : 1)) / PDMAUDIO_VOLUME_MAX;
1270	}
1271
1272	PSB16DRIVER pDrv;
1273	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
1274	{
1275	if (!pDrv->Out.pStream)
1276	continue;
1277
1278	int rc2 = pDrv->pConnector->pfnStreamSetVolume(pDrv->pConnector, pDrv->Out.pStream, &VolCombined);
1279	AssertRC(rc2);
1280	}
1281	}
1282
1283	static void sb16ResetLegacy(PSB16STATE pThis)
1284	{
1285	LogFlowFuncEnter();
1286
1287	sb16CloseOut(pThis);
1288
1289	pThis->freq = 11025;
1290	pThis->fmt_signed = 0;
1291	pThis->fmt_bits = 8;
1292	pThis->fmt_stereo = 0;
1293
1294	/* At the moment we only have one stream, the output stream. */
1295	PPDMAUDIOSTREAMCFG pCfg = &pThis->Out.Cfg;
1296
1297	pCfg->enmDir = PDMAUDIODIR_OUT;
1298	pCfg->DestSource.Dest = PDMAUDIOPLAYBACKDEST_FRONT;
1299	pCfg->enmLayout = PDMAUDIOSTREAMLAYOUT_NON_INTERLEAVED;
1300
1301	pCfg->Props.uHz = pThis->freq;
1302	pCfg->Props.cChannels = 1; /* Mono */
1303	pCfg->Props.cBits = 8;
1304	pCfg->Props.fSigned = false;
1305	pCfg->Props.cShift = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pCfg->Props.cBits, pCfg->Props.cChannels);
1306
1307	RTStrPrintf(pCfg->szName, sizeof(pCfg->szName), "Output");
1308
1309	sb16CloseOut(pThis);
1310
1311	int rc2 = sb16OpenOut(pThis, pCfg);
1312	AssertRC(rc2);
1313	}
1314
1315	static void sb16Reset(PSB16STATE pThis)
1316	{
1317	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1318	if (pThis->dma_auto)
1319	{
1320	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
1321	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1322	}
1323
1324	pThis->mixer_regs[0x82] = 0;
1325	pThis->dma_auto = 0;
1326	pThis->in_index = 0;
1327	pThis->out_data_len = 0;
1328	pThis->left_till_irq = 0;
1329	pThis->needed_bytes = 0;
1330	pThis->block_size = -1;
1331	pThis->nzero = 0;
1332	pThis->highspeed = 0;
1333	pThis->v2x6 = 0;
1334	pThis->cmd = -1;
1335
1336	dsp_out_data(pThis, 0xaa);
1337	sb16SpeakerControl(pThis, 0);
1338
1339	sb16Control(pThis, 0);
1340	sb16ResetLegacy(pThis);
1341	}
1342
1343	static IO_WRITE_PROTO(dsp_write)
1344	{
1345	RT_NOREF(pDevIns, cb);
1346	PSB16STATE pThis = (PSB16STATE)opaque;
1347	int iport = nport - pThis->port;
1348
1349	LogFlowFunc(("write %#x <- %#x\n", nport, val));
1350	switch (iport)
1351	{
1352	case 0x06:
1353	switch (val)
1354	{
1355	case 0x00:
1356	{
1357	if (pThis->v2x6 == 1)
1358	{
1359	if (0 && pThis->highspeed)
1360	{
1361	pThis->highspeed = 0;
1362	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1363	sb16Control(pThis, 0);
1364	}
1365	else
1366	sb16Reset(pThis);
1367	}
1368	pThis->v2x6 = 0;
1369	break;
1370	}
1371
1372	case 0x01:
1373	case 0x03: /* FreeBSD kludge */
1374	pThis->v2x6 = 1;
1375	break;
1376
1377	case 0xc6:
1378	pThis->v2x6 = 0; /* Prince of Persia, csp.sys, diagnose.exe */
1379	break;
1380
1381	case 0xb8: /* Panic */
1382	sb16Reset(pThis);
1383	break;
1384
1385	case 0x39:
1386	dsp_out_data(pThis, 0x38);
1387	sb16Reset(pThis);
1388	pThis->v2x6 = 0x39;
1389	break;
1390
1391	default:
1392	pThis->v2x6 = val;
1393	break;
1394	}
1395	break;
1396
1397	case 0x0c: /* Write data or command \| write status */
1398	#if 0
1399	if (pThis->highspeed)
1400	break;
1401	#endif
1402	if (0 == pThis->needed_bytes)
1403	{
1404	sb16HandleCommand(pThis, val);
1405	#if 0
1406	if (0 == pThis->needed_bytes) {
1407	log_dsp (pThis);
1408	}
1409	#endif
1410	}
1411	else
1412	{
1413	if (pThis->in_index == sizeof (pThis->in2_data))
1414	{
1415	LogFlowFunc(("in data overrun\n"));
1416	}
1417	else
1418	{
1419	pThis->in2_data[pThis->in_index++] = val;
1420	if (pThis->in_index == pThis->needed_bytes)
1421	{
1422	pThis->needed_bytes = 0;
1423	complete (pThis);
1424	#if 0
1425	log_dsp (pThis);
1426	#endif
1427	}
1428	}
1429	}
1430	break;
1431
1432	default:
1433	LogFlowFunc(("nport=%#x, val=%#x)\n", nport, val));
1434	break;
1435	}
1436
1437	return VINF_SUCCESS;
1438	}
1439
1440	static IO_READ_PROTO(dsp_read)
1441	{
1442	RT_NOREF(pDevIns, cb);
1443	PSB16STATE pThis = (PSB16STATE)opaque;
1444	int iport, retval, ack = 0;
1445
1446	iport = nport - pThis->port;
1447
1448	/** @todo reject non-byte access?
1449	* The spec does not mention a non-byte access so we should check how real hardware behaves. */
1450
1451	switch (iport)
1452	{
1453	case 0x06: /* reset */
1454	retval = 0xff;
1455	break;
1456
1457	case 0x0a: /* read data */
1458	if (pThis->out_data_len)
1459	{
1460	retval = pThis->out_data[--pThis->out_data_len];
1461	pThis->last_read_byte = retval;
1462	}
1463	else
1464	{
1465	if (pThis->cmd != -1)
1466	LogFlowFunc(("empty output buffer for command %#x\n", pThis->cmd));
1467	retval = pThis->last_read_byte;
1468	/* goto error; */
1469	}
1470	break;
1471
1472	case 0x0c: /* 0 can write */
1473	retval = pThis->can_write ? 0 : 0x80;
1474	break;
1475
1476	case 0x0d: /* timer interrupt clear */
1477	/* LogFlowFunc(("timer interrupt clear\n")); */
1478	retval = 0;
1479	break;
1480
1481	case 0x0e: /* data available status \| irq 8 ack */
1482	retval = (!pThis->out_data_len \|\| pThis->highspeed) ? 0 : 0x80;
1483	if (pThis->mixer_regs[0x82] & 1)
1484	{
1485	ack = 1;
1486	pThis->mixer_regs[0x82] &= ~1;
1487	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1488	}
1489	break;
1490
1491	case 0x0f: /* irq 16 ack */
1492	retval = 0xff;
1493	if (pThis->mixer_regs[0x82] & 2)
1494	{
1495	ack = 1;
1496	pThis->mixer_regs[0x82] &= ~2;
1497	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1498	}
1499	break;
1500
1501	default:
1502	goto error;
1503	}
1504
1505	if (!ack)
1506	LogFlowFunc(("read %#x -> %#x\n", nport, retval));
1507
1508	*pu32 = retval;
1509	return VINF_SUCCESS;
1510
1511	error:
1512	LogFlowFunc(("warning: dsp_read %#x error\n", nport));
1513	return VERR_IOM_IOPORT_UNUSED;
1514	}
1515
1516	static void sb16MixerReset(PSB16STATE pThis)
1517	{
1518	memset(pThis->mixer_regs, 0xff, 0x7f);
1519	memset(pThis->mixer_regs + 0x83, 0xff, sizeof (pThis->mixer_regs) - 0x83);
1520
1521	pThis->mixer_regs[0x02] = 4; /* master volume 3bits */
1522	pThis->mixer_regs[0x06] = 4; /* MIDI volume 3bits */
1523	pThis->mixer_regs[0x08] = 0; /* CD volume 3bits */
1524	pThis->mixer_regs[0x0a] = 0; /* voice volume 2bits */
1525
1526	/* d5=input filt, d3=lowpass filt, d1,d2=input source */
1527	pThis->mixer_regs[0x0c] = 0;
1528
1529	/* d5=output filt, d1=stereo switch */
1530	pThis->mixer_regs[0x0e] = 0;
1531
1532	/* voice volume L d5,d7, R d1,d3 */
1533	pThis->mixer_regs[0x04] = (12 << 4) \| 12;
1534	/* master ... */
1535	pThis->mixer_regs[0x22] = (12 << 4) \| 12;
1536	/* MIDI ... */
1537	pThis->mixer_regs[0x26] = (12 << 4) \| 12;
1538
1539	/* master/voice/MIDI L/R volume */
1540	for (int i = 0x30; i < 0x36; i++)
1541	pThis->mixer_regs[i] = 24 << 3; /* -14 dB */
1542
1543	/* treble/bass */
1544	for (int i = 0x44; i < 0x48; i++)
1545	pThis->mixer_regs[i] = 0x80;
1546
1547	/* Update the master (mixer) and PCM out volumes. */
1548	sb16UpdateVolume(pThis);
1549	}
1550
1551	static IO_WRITE_PROTO(mixer_write_indexb)
1552	{
1553	RT_NOREF(pDevIns, cb);
1554	PSB16STATE pThis = (PSB16STATE)opaque;
1555	(void) nport;
1556	pThis->mixer_nreg = val;
1557
1558	return VINF_SUCCESS;
1559	}
1560
1561	uint32_t popcount(uint32_t u) /** @todo r=andy WTF? */
1562	{
1563	u = ((u&0x55555555) + ((u>>1)&0x55555555));
1564	u = ((u&0x33333333) + ((u>>2)&0x33333333));
1565	u = ((u&0x0f0f0f0f) + ((u>>4)&0x0f0f0f0f));
1566	u = ((u&0x00ff00ff) + ((u>>8)&0x00ff00ff));
1567	u = ( u&0x0000ffff) + (u>>16);
1568	return u;
1569	}
1570
1571	uint32_t lsbindex(uint32_t u)
1572	{
1573	return popcount((u & -(int32_t)u) - 1);
1574	}
1575
1576	/* Convert SB16 to SB Pro mixer volume (left). */
1577	static inline void sb16ConvVolumeL(PSB16STATE pThis, unsigned reg, uint8_t val)
1578	{
1579	/* High nibble in SBP mixer. */
1580	pThis->mixer_regs[reg] = (pThis->mixer_regs[reg] & 0x0f) \| (val & 0xf0);
1581	}
1582
1583	/* Convert SB16 to SB Pro mixer volume (right). */
1584	static inline void sb16ConvVolumeR(PSB16STATE pThis, unsigned reg, uint8_t val)
1585	{
1586	/* Low nibble in SBP mixer. */
1587	pThis->mixer_regs[reg] = (pThis->mixer_regs[reg] & 0xf0) \| (val >> 4);
1588	}
1589
1590	/* Convert SB Pro to SB16 mixer volume (left + right). */
1591	static inline void sb16ConvVolumeOldToNew(PSB16STATE pThis, unsigned reg, uint8_t val)
1592	{
1593	/* Left channel. */
1594	pThis->mixer_regs[reg + 0] = (val & 0xf0) \| RT_BIT(3);
1595	/* Right channel (the register immediately following). */
1596	pThis->mixer_regs[reg + 1] = (val << 4) \| RT_BIT(3);
1597	}
1598
1599	static IO_WRITE_PROTO(mixer_write_datab)
1600	{
1601	RT_NOREF(pDevIns, cb);
1602	PSB16STATE pThis = (PSB16STATE)opaque;
1603	bool fUpdateMaster = false;
1604	bool fUpdateStream = false;
1605
1606	(void) nport;
1607	LogFlowFunc(("mixer_write [%#x] <- %#x\n", pThis->mixer_nreg, val));
1608
1609	switch (pThis->mixer_nreg)
1610	{
1611	case 0x00:
1612	sb16MixerReset(pThis);
1613	/* And update the actual volume, too. */
1614	fUpdateMaster = true;
1615	fUpdateStream = true;
1616	break;
1617
1618	case 0x04: /* Translate from old style voice volume (L/R). */
1619	sb16ConvVolumeOldToNew(pThis, 0x32, val);
1620	fUpdateStream = true;
1621	break;
1622
1623	case 0x22: /* Translate from old style master volume (L/R). */
1624	sb16ConvVolumeOldToNew(pThis, 0x30, val);
1625	fUpdateMaster = true;
1626	break;
1627
1628	case 0x26: /* Translate from old style MIDI volume (L/R). */
1629	sb16ConvVolumeOldToNew(pThis, 0x34, val);
1630	break;
1631
1632	case 0x28: /* Translate from old style CD volume (L/R). */
1633	sb16ConvVolumeOldToNew(pThis, 0x36, val);
1634	break;
1635
1636	case 0x2E: /* Translate from old style line volume (L/R). */
1637	sb16ConvVolumeOldToNew(pThis, 0x38, val);
1638	break;
1639
1640	case 0x30: /* Translate to old style master volume (L). */
1641	sb16ConvVolumeL(pThis, 0x22, val);
1642	fUpdateMaster = true;
1643	break;
1644
1645	case 0x31: /* Translate to old style master volume (R). */
1646	sb16ConvVolumeR(pThis, 0x22, val);
1647	fUpdateMaster = true;
1648	break;
1649
1650	case 0x32: /* Translate to old style voice volume (L). */
1651	sb16ConvVolumeL(pThis, 0x04, val);
1652	fUpdateStream = true;
1653	break;
1654
1655	case 0x33: /* Translate to old style voice volume (R). */
1656	sb16ConvVolumeR(pThis, 0x04, val);
1657	fUpdateStream = true;
1658	break;
1659
1660	case 0x34: /* Translate to old style MIDI volume (L). */
1661	sb16ConvVolumeL(pThis, 0x26, val);
1662	break;
1663
1664	case 0x35: /* Translate to old style MIDI volume (R). */
1665	sb16ConvVolumeR(pThis, 0x26, val);
1666	break;
1667
1668	case 0x36: /* Translate to old style CD volume (L). */
1669	sb16ConvVolumeL(pThis, 0x28, val);
1670	break;
1671
1672	case 0x37: /* Translate to old style CD volume (R). */
1673	sb16ConvVolumeR(pThis, 0x28, val);
1674	break;
1675
1676	case 0x38: /* Translate to old style line volume (L). */
1677	sb16ConvVolumeL(pThis, 0x2E, val);
1678	break;
1679
1680	case 0x39: /* Translate to old style line volume (R). */
1681	sb16ConvVolumeR(pThis, 0x2E, val);
1682	break;
1683
1684	case 0x80:
1685	{
1686	int irq = irq_of_magic(val);
1687	LogFlowFunc(("setting irq to %d (val=%#x)\n", irq, val));
1688	if (irq > 0)
1689	pThis->irq = irq;
1690	break;
1691	}
1692
1693	case 0x81:
1694	{
1695	int dma, hdma;
1696
1697	dma = lsbindex (val & 0xf);
1698	hdma = lsbindex (val & 0xf0);
1699	if (dma != pThis->dma \|\| hdma != pThis->hdma)
1700	LogFlow(("SB16: attempt to change DMA 8bit %d(%d), 16bit %d(%d) (val=%#x)\n",
1701	dma, pThis->dma, hdma, pThis->hdma, val));
1702	#if 0
1703	pThis->dma = dma;
1704	pThis->hdma = hdma;
1705	#endif
1706	break;
1707	}
1708
1709	case 0x82:
1710	LogFlowFunc(("attempt to write into IRQ status register (val=%#x)\n", val));
1711	return VINF_SUCCESS;
1712
1713	default:
1714	if (pThis->mixer_nreg >= 0x80)
1715	LogFlowFunc(("attempt to write mixer[%#x] <- %#x\n", pThis->mixer_nreg, val));
1716	break;
1717	}
1718
1719	pThis->mixer_regs[pThis->mixer_nreg] = val;
1720
1721	/* Update the master (mixer) volume. */
1722	if ( fUpdateMaster
1723	\|\| fUpdateStream)
1724	{
1725	sb16UpdateVolume(pThis);
1726	}
1727
1728	return VINF_SUCCESS;
1729	}
1730
1731	static IO_WRITE_PROTO(mixer_write)
1732	{
1733	PSB16STATE pThis = (PSB16STATE)opaque;
1734	int iport = nport - pThis->port;
1735	switch (cb)
1736	{
1737	case 1:
1738	switch (iport)
1739	{
1740	case 4:
1741	mixer_write_indexb (pDevIns, opaque, nport, val, 1);
1742	break;
1743	case 5:
1744	mixer_write_datab (pDevIns, opaque, nport, val, 1);
1745	break;
1746	}
1747	break;
1748	case 2:
1749	mixer_write_indexb (pDevIns, opaque, nport, val & 0xff, 1);
1750	mixer_write_datab (pDevIns, opaque, nport, (val >> 8) & 0xff, 1);
1751	break;
1752	default:
1753	AssertMsgFailed(("Port=%#x cb=%d u32=%#x\n", nport, cb, val));
1754	break;
1755	}
1756	return VINF_SUCCESS;
1757	}
1758
1759	static IO_READ_PROTO(mixer_read)
1760	{
1761	RT_NOREF(pDevIns, cb);
1762	PSB16STATE pThis = (PSB16STATE)opaque;
1763
1764	(void) nport;
1765	#ifndef DEBUG_SB16_MOST
1766	if (pThis->mixer_nreg != 0x82) {
1767	LogFlowFunc(("mixer_read[%#x] -> %#x\n",
1768	pThis->mixer_nreg, pThis->mixer_regs[pThis->mixer_nreg]));
1769	}
1770	#else
1771	LogFlowFunc(("mixer_read[%#x] -> %#x\n",
1772	pThis->mixer_nreg, pThis->mixer_regs[pThis->mixer_nreg]));
1773	#endif
1774	*pu32 = pThis->mixer_regs[pThis->mixer_nreg];
1775	return VINF_SUCCESS;
1776	}
1777
1778	static int sb16WriteAudio(PSB16STATE pThis, int nchan, uint32_t dma_pos,
1779	uint32_t dma_len, int len)
1780	{
1781	uint8_t tmpbuf[_4K]; /** @todo Have a buffer on the heap. */
1782	uint32_t cbToWrite = len;
1783	uint32_t cbWrittenTotal = 0;
1784
1785	while (cbToWrite)
1786	{
1787	uint32_t cbToRead = RT_MIN(dma_len - dma_pos, cbToWrite);
1788	if (cbToRead > sizeof(tmpbuf))
1789	cbToRead = sizeof(tmpbuf);
1790
1791	uint32_t cbRead = 0;
1792	int rc2 = PDMDevHlpDMAReadMemory(pThis->pDevInsR3, nchan, tmpbuf, dma_pos, cbToRead, &cbRead);
1793	AssertMsgRC(rc2, (" from DMA failed: %Rrc\n", rc2));
1794
1795	#ifdef VBOX_AUDIO_DEBUG_DUMP_PCM_DATA
1796	if (cbRead)
1797	{
1798	RTFILE fh;
1799	RTFileOpen(&fh, VBOX_AUDIO_DEBUG_DUMP_PCM_DATA_PATH "sb16WriteAudio.pcm",
1800	RTFILE_O_OPEN_CREATE \| RTFILE_O_APPEND \| RTFILE_O_WRITE \| RTFILE_O_DENY_NONE);
1801	RTFileWrite(fh, tmpbuf, cbRead, NULL);
1802	RTFileClose(fh);
1803	}
1804	#endif
1805	/*
1806	* Write data to the backends.
1807	*/
1808	uint32_t cbWritten = 0;
1809
1810	/* Just multiplex the output to the connected backends.
1811	* No need to utilize the virtual mixer here (yet). */
1812	PSB16DRIVER pDrv;
1813	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
1814	{
1815	if (!pDrv->Out.pStream)
1816	continue;
1817
1818	uint32_t cbWrittenToStream = 0;
1819	rc2 = pDrv->pConnector->pfnStreamWrite(pDrv->pConnector, pDrv->Out.pStream, tmpbuf, cbRead, &cbWrittenToStream);
1820
1821	LogFlowFunc(("\tLUN#%RU8: rc=%Rrc, cbWrittenToStream=%RU32\n", pDrv->uLUN, rc2, cbWrittenToStream));
1822
1823	/* The primary driver sets the overall pace. */
1824	if (pDrv->fFlags & PDMAUDIODRVFLAGS_PRIMARY)
1825	{
1826	cbWritten = cbWrittenToStream;
1827
1828	if (RT_FAILURE(rc2))
1829	break;
1830	}
1831	}
1832
1833	LogFlowFunc(("\tcbToRead=%RU32, cbToWrite=%RU32, cbWritten=%RU32, cbLeft=%RU32\n",
1834	cbToRead, cbToWrite, cbWritten, cbToWrite - cbWrittenTotal));
1835
1836	Assert(cbToWrite >= cbWritten);
1837	cbToWrite -= cbWritten;
1838	dma_pos = (dma_pos + cbWritten) % dma_len;
1839	cbWrittenTotal += cbWritten;
1840
1841	if (!cbWritten)
1842	break;
1843	}
1844
1845	return cbWrittenTotal;
1846	}
1847
1848	static DECLCALLBACK(uint32_t) sb16DMARead(PPDMDEVINS pDevIns, void *opaque, unsigned nchan, uint32_t dma_pos, uint32_t dma_len)
1849	{
1850	RT_NOREF(pDevIns);
1851	PSB16STATE pThis = (PSB16STATE)opaque;
1852	int till, copy, written, free;
1853
1854	if (pThis->block_size <= 0)
1855	{
1856	LogFlowFunc(("invalid block size=%d nchan=%d dma_pos=%d dma_len=%d\n",
1857	pThis->block_size, nchan, dma_pos, dma_len));
1858	return dma_pos;
1859	}
1860
1861	if (pThis->left_till_irq < 0)
1862	pThis->left_till_irq = pThis->block_size;
1863
1864	uint32_t cbOutMin = UINT32_MAX;
1865
1866	PSB16DRIVER pDrv;
1867	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
1868	{
1869	if (!pDrv->Out.pStream)
1870	continue;
1871
1872	uint32_t cbOut = pDrv->pConnector->pfnStreamGetWritable(pDrv->pConnector, pDrv->Out.pStream);
1873
1874	if (cbOut < cbOutMin)
1875	cbOutMin = cbOut;
1876	}
1877
1878	LogFlowFunc(("cbOutMin=%RU32\n", cbOutMin));
1879	if (cbOutMin == UINT32_MAX)
1880	{
1881	free = dma_len;
1882	}
1883	else
1884	{
1885	free = cbOutMin & ~pThis->align; /** @todo int vs. uint32. */
1886	if ((free <= 0) \|\| !dma_len)
1887	return dma_pos;
1888	}
1889
1890	copy = free;
1891	till = pThis->left_till_irq;
1892
1893	#ifdef DEBUG_SB16_MOST
1894	LogFlowFunc(("pos:%06d %d till:%d len:%d\n", dma_pos, free, till, dma_len));
1895	#endif
1896
1897	if (copy >= till)
1898	{
1899	if (0 == pThis->dma_auto)
1900	{
1901	copy = till;
1902	}
1903	else
1904	{
1905	if (copy >= till + pThis->block_size)
1906	copy = till; /* Make sure we won't skip IRQs. */
1907	}
1908	}
1909
1910	written = sb16WriteAudio(pThis, nchan, dma_pos, dma_len, copy);
1911	dma_pos = (dma_pos + written) % dma_len;
1912	pThis->left_till_irq -= written;
1913
1914	if (pThis->left_till_irq <= 0)
1915	{
1916	pThis->mixer_regs[0x82] \|= (nchan & 4) ? 2 : 1;
1917	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
1918	if (0 == pThis->dma_auto)
1919	{
1920	sb16Control(pThis, 0);
1921	sb16SpeakerControl(pThis, 0);
1922	}
1923	}
1924
1925	Log3Func(("pos %d/%d free %5d till %5d copy %5d written %5d block_size %5d\n",
1926	dma_pos, dma_len, free, pThis->left_till_irq, copy, written,
1927	pThis->block_size));
1928
1929	while (pThis->left_till_irq <= 0)
1930	pThis->left_till_irq += pThis->block_size;
1931
1932	return dma_pos;
1933	}
1934
1935	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
1936	static void sb16TimerMaybeStart(PSB16STATE pThis)
1937	{
1938	LogFlowFunc(("cStreamsActive=%RU8\n", pThis->cStreamsActive));
1939
1940	if (pThis->cStreamsActive == 0) /* Only start the timer if there are no active streams. */
1941	return;
1942
1943	if (!pThis->pTimerIO)
1944	return;
1945
1946	/* Set timer flag. */
1947	ASMAtomicXchgBool(&pThis->fTimerActive, true);
1948
1949	/* Update current time timestamp. */
1950	pThis->uTimerTSIO = TMTimerGet(pThis->pTimerIO);
1951
1952	/* Fire off timer. */
1953	TMTimerSet(pThis->pTimerIO, TMTimerGet(pThis->pTimerIO) + pThis->cTimerTicksIO);
1954	}
1955
1956	static void sb16TimerMaybeStop(PSB16STATE pThis)
1957	{
1958	LogFlowFunc(("cStreamsActive=%RU8\n", pThis->cStreamsActive));
1959
1960	if (pThis->cStreamsActive) /* Some streams still active? Bail out. */
1961	return;
1962
1963	if (!pThis->pTimerIO)
1964	return;
1965
1966	/* Set timer flag. */
1967	ASMAtomicXchgBool(&pThis->fTimerActive, false);
1968	}
1969
1970	static DECLCALLBACK(void) sb16TimerIO(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
1971	{
1972	RT_NOREF(pDevIns);
1973	PSB16STATE pThis = (PSB16STATE)pvUser;
1974	Assert(pThis == PDMINS_2_DATA(pDevIns, PSB16STATE));
1975	AssertPtr(pThis);
1976
1977	uint64_t cTicksNow = TMTimerGet(pTimer);
1978	bool fIsPlaying = false; /* Whether one or more streams are still playing. */
1979	bool fDoTransfer = false;
1980
1981	pThis->uTimerTSIO = cTicksNow;
1982
1983	PSB16DRIVER pDrv;
1984	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
1985	{
1986	PPDMAUDIOSTREAM pStream = pDrv->Out.pStream;
1987	if (!pStream)
1988	continue;
1989
1990	#ifdef DEBUG
1991	PSB16DRIVER pDrvPrev = RTListNodeGetPrev(&pDrv->Node, SB16DRIVER, Node);
1992	if ( pDrvPrev
1993	&& !RTListNodeIsDummy(&pThis->lstDrv, pDrvPrev, SB16DRIVER, Node))
1994	{
1995	PPDMAUDIOSTREAM pStreamPrev = pDrvPrev->Out.pStream;
1996	AssertPtr(pStreamPrev);
1997
1998	/*
1999	* Sanity. Make sure that all streams have the same configuration
2000	* to get SB16's DMA transfers right.
2001	*
2002	* SB16 only allows one output configuration per serial data out,
2003	* so check if all streams have the same configuration.
2004	*/
2005	AssertMsg(pStream->Cfg.Props.uHz == pStreamPrev->Cfg.Props.uHz,
2006	("%RU32Hz vs. %RU32Hz\n", pStream->Cfg.Props.uHz, pStreamPrev->Cfg.Props.uHz));
2007	AssertMsg(pStream->Cfg.Props.cChannels == pStreamPrev->Cfg.Props.cChannels,
2008	("%RU8 vs. %RU8 channels\n", pStream->Cfg.Props.cChannels, pStreamPrev->Cfg.Props.cChannels));
2009	AssertMsg(pStream->Cfg.Props.cBits == pStreamPrev->Cfg.Props.cBits,
2010	("%d vs. %d bits\n", pStream->Cfg.Props.cBits, pStreamPrev->Cfg.Props.cBits));
2011	AssertMsg(pStream->Cfg.Props.fSigned == pStreamPrev->Cfg.Props.fSigned,
2012	("%RTbool vs. %RTbool signed\n", pStream->Cfg.Props.fSigned, pStreamPrev->Cfg.Props.fSigned));
2013	}
2014	#endif
2015	PPDMIAUDIOCONNECTOR pConn = pDrv->pConnector;
2016	if (!pConn)
2017	continue;
2018
2019	int rc2 = pConn->pfnStreamIterate(pConn, pStream);
2020	if (RT_SUCCESS(rc2))
2021	{
2022	if (pStream->enmDir == PDMAUDIODIR_IN)
2023	{
2024	/** @todo Implement recording! */
2025	}
2026	else
2027	{
2028	rc2 = pConn->pfnStreamPlay(pConn, pStream, NULL /* cPlayed */);
2029	if (RT_FAILURE(rc2))
2030	{
2031	LogFlowFunc(("%s: Failed playing stream, rc=%Rrc\n", pStream->szName, rc2));
2032	continue;
2033	}
2034	}
2035
2036	if (pDrv->fFlags & PDMAUDIODRVFLAGS_PRIMARY)
2037	{
2038	/* Only do the next DMA transfer if we're able to write the remaining data block. */
2039	fDoTransfer = pConn->pfnStreamGetWritable(pConn, pStream) > (unsigned)pThis->left_till_irq;
2040	}
2041	}
2042
2043	PDMAUDIOSTREAMSTS strmSts = pConn->pfnStreamGetStatus(pConn, pStream);
2044	fIsPlaying \|= ( (strmSts & PDMAUDIOSTREAMSTS_FLAG_ENABLED)
2045	\|\| (strmSts & PDMAUDIOSTREAMSTS_FLAG_PENDING_DISABLE));
2046	}
2047
2048	bool fTimerActive = ASMAtomicReadBool(&pThis->fTimerActive);
2049	bool fKickTimer = fTimerActive \|\| fIsPlaying;
2050
2051	LogFlowFunc(("fTimerActive=%RTbool, fIsPlaying=%RTbool\n", fTimerActive, fIsPlaying));
2052
2053	if (fDoTransfer)
2054	{
2055	/* Schedule the next transfer. */
2056	PDMDevHlpDMASchedule(pThis->pDevInsR3);
2057
2058	/* Kick the timer at least one more time. */
2059	fKickTimer = true;
2060	}
2061
2062	/*
2063	* Recording.
2064	*/
2065	/** @todo Implement recording. */
2066
2067	if (fKickTimer)
2068	{
2069	/* Kick the timer again. */
2070	uint64_t cTicks = pThis->cTimerTicksIO;
2071	/** @todo adjust cTicks down by now much cbOutMin represents. */
2072	TMTimerSet(pThis->pTimerIO, cTicksNow + cTicks);
2073	}
2074	}
2075	#endif /* !VBOX_WITH_AUDIO_SB16_CALLBACKS */
2076
2077	static void sb16Save(PSSMHANDLE pSSM, PSB16STATE pThis)
2078	{
2079	SSMR3PutS32(pSSM, pThis->irq);
2080	SSMR3PutS32(pSSM, pThis->dma);
2081	SSMR3PutS32(pSSM, pThis->hdma);
2082	SSMR3PutS32(pSSM, pThis->port);
2083	SSMR3PutS32(pSSM, pThis->ver);
2084	SSMR3PutS32(pSSM, pThis->in_index);
2085	SSMR3PutS32(pSSM, pThis->out_data_len);
2086	SSMR3PutS32(pSSM, pThis->fmt_stereo);
2087	SSMR3PutS32(pSSM, pThis->fmt_signed);
2088	SSMR3PutS32(pSSM, pThis->fmt_bits);
2089
2090	SSMR3PutU32(pSSM, pThis->fmt);
2091
2092	SSMR3PutS32(pSSM, pThis->dma_auto);
2093	SSMR3PutS32(pSSM, pThis->block_size);
2094	SSMR3PutS32(pSSM, pThis->fifo);
2095	SSMR3PutS32(pSSM, pThis->freq);
2096	SSMR3PutS32(pSSM, pThis->time_const);
2097	SSMR3PutS32(pSSM, pThis->speaker);
2098	SSMR3PutS32(pSSM, pThis->needed_bytes);
2099	SSMR3PutS32(pSSM, pThis->cmd);
2100	SSMR3PutS32(pSSM, pThis->use_hdma);
2101	SSMR3PutS32(pSSM, pThis->highspeed);
2102	SSMR3PutS32(pSSM, pThis->can_write);
2103	SSMR3PutS32(pSSM, pThis->v2x6);
2104
2105	SSMR3PutU8 (pSSM, pThis->csp_param);
2106	SSMR3PutU8 (pSSM, pThis->csp_value);
2107	SSMR3PutU8 (pSSM, pThis->csp_mode);
2108	SSMR3PutU8 (pSSM, pThis->csp_param); /* Bug compatible! */
2109	SSMR3PutMem(pSSM, pThis->csp_regs, 256);
2110	SSMR3PutU8 (pSSM, pThis->csp_index);
2111	SSMR3PutMem(pSSM, pThis->csp_reg83, 4);
2112	SSMR3PutS32(pSSM, pThis->csp_reg83r);
2113	SSMR3PutS32(pSSM, pThis->csp_reg83w);
2114
2115	SSMR3PutMem(pSSM, pThis->in2_data, sizeof (pThis->in2_data));
2116	SSMR3PutMem(pSSM, pThis->out_data, sizeof (pThis->out_data));
2117	SSMR3PutU8 (pSSM, pThis->test_reg);
2118	SSMR3PutU8 (pSSM, pThis->last_read_byte);
2119
2120	SSMR3PutS32(pSSM, pThis->nzero);
2121	SSMR3PutS32(pSSM, pThis->left_till_irq);
2122	SSMR3PutS32(pSSM, pThis->dma_running);
2123	SSMR3PutS32(pSSM, pThis->bytes_per_second);
2124	SSMR3PutS32(pSSM, pThis->align);
2125
2126	SSMR3PutS32(pSSM, pThis->mixer_nreg);
2127	SSMR3PutMem(pSSM, pThis->mixer_regs, 256);
2128
2129	}
2130
2131	static int sb16Load(PSSMHANDLE pSSM, PSB16STATE pThis)
2132	{
2133	SSMR3GetS32(pSSM, &pThis->irq);
2134	SSMR3GetS32(pSSM, &pThis->dma);
2135	SSMR3GetS32(pSSM, &pThis->hdma);
2136	SSMR3GetS32(pSSM, &pThis->port);
2137	SSMR3GetS32(pSSM, &pThis->ver);
2138	SSMR3GetS32(pSSM, &pThis->in_index);
2139	SSMR3GetS32(pSSM, &pThis->out_data_len);
2140	SSMR3GetS32(pSSM, &pThis->fmt_stereo);
2141	SSMR3GetS32(pSSM, &pThis->fmt_signed);
2142	SSMR3GetS32(pSSM, &pThis->fmt_bits);
2143
2144	SSMR3GetU32(pSSM, (uint32_t *)&pThis->fmt);
2145
2146	SSMR3GetS32(pSSM, &pThis->dma_auto);
2147	SSMR3GetS32(pSSM, &pThis->block_size);
2148	SSMR3GetS32(pSSM, &pThis->fifo);
2149	SSMR3GetS32(pSSM, &pThis->freq);
2150	SSMR3GetS32(pSSM, &pThis->time_const);
2151	SSMR3GetS32(pSSM, &pThis->speaker);
2152	SSMR3GetS32(pSSM, &pThis->needed_bytes);
2153	SSMR3GetS32(pSSM, &pThis->cmd);
2154	SSMR3GetS32(pSSM, &pThis->use_hdma);
2155	SSMR3GetS32(pSSM, &pThis->highspeed);
2156	SSMR3GetS32(pSSM, &pThis->can_write);
2157	SSMR3GetS32(pSSM, &pThis->v2x6);
2158
2159	SSMR3GetU8 (pSSM, &pThis->csp_param);
2160	SSMR3GetU8 (pSSM, &pThis->csp_value);
2161	SSMR3GetU8 (pSSM, &pThis->csp_mode);
2162	SSMR3GetU8 (pSSM, &pThis->csp_param); /* Bug compatible! */
2163	SSMR3GetMem(pSSM, pThis->csp_regs, 256);
2164	SSMR3GetU8 (pSSM, &pThis->csp_index);
2165	SSMR3GetMem(pSSM, pThis->csp_reg83, 4);
2166	SSMR3GetS32(pSSM, &pThis->csp_reg83r);
2167	SSMR3GetS32(pSSM, &pThis->csp_reg83w);
2168
2169	SSMR3GetMem(pSSM, pThis->in2_data, sizeof (pThis->in2_data));
2170	SSMR3GetMem(pSSM, pThis->out_data, sizeof (pThis->out_data));
2171	SSMR3GetU8 (pSSM, &pThis->test_reg);
2172	SSMR3GetU8 (pSSM, &pThis->last_read_byte);
2173
2174	SSMR3GetS32(pSSM, &pThis->nzero);
2175	SSMR3GetS32(pSSM, &pThis->left_till_irq);
2176	SSMR3GetS32(pSSM, &pThis->dma_running);
2177	SSMR3GetS32(pSSM, &pThis->bytes_per_second);
2178	SSMR3GetS32(pSSM, &pThis->align);
2179
2180	SSMR3GetS32(pSSM, &pThis->mixer_nreg);
2181	SSMR3GetMem(pSSM, pThis->mixer_regs, 256);
2182
2183	#if 0
2184	PSB16DRIVER pDrv;
2185	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2186	{
2187	if (pDrv->Out.pStream)
2188	{
2189	pDrv->pConnector->pfnCloseOut(pThis->pDrv, pDrv->Out.pStream);
2190	pDrv->Out.pStream = NULL;
2191	}
2192	}
2193	#endif
2194
2195	if (pThis->dma_running)
2196	{
2197	if (pThis->freq)
2198	{
2199	/* At the moment we only have one stream, the output stream. */
2200	PPDMAUDIOSTREAMCFG pCfg = &pThis->Out.Cfg;
2201
2202	pCfg->enmDir = PDMAUDIODIR_OUT;
2203	pCfg->DestSource.Dest = PDMAUDIOPLAYBACKDEST_FRONT;
2204	pCfg->enmLayout = PDMAUDIOSTREAMLAYOUT_NON_INTERLEAVED;
2205
2206	pCfg->Props.uHz = pThis->freq;
2207	pCfg->Props.cChannels = 1 << pThis->fmt_stereo;
2208	pCfg->Props.cBits = pThis->fmt_bits;
2209	pCfg->Props.fSigned = RT_BOOL(pThis->fmt_signed);
2210	pCfg->Props.cShift = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pCfg->Props.cBits, pCfg->Props.cChannels);
2211
2212	RTStrPrintf(pCfg->szName, sizeof(pCfg->szName), "Output");
2213
2214	sb16CloseOut(pThis);
2215
2216	int rc = sb16OpenOut(pThis, pCfg);
2217	AssertRC(rc);
2218	}
2219
2220	sb16Control(pThis, 1);
2221	sb16SpeakerControl(pThis, pThis->speaker);
2222	}
2223
2224	/* Update the master (mixer) and PCM out volumes. */
2225	sb16UpdateVolume(pThis);
2226
2227	return VINF_SUCCESS;
2228	}
2229
2230	static DECLCALLBACK(int) sb16LiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass)
2231	{
2232	RT_NOREF(uPass);
2233	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2234
2235	SSMR3PutS32(pSSM, pThis->irqCfg);
2236	SSMR3PutS32(pSSM, pThis->dmaCfg);
2237	SSMR3PutS32(pSSM, pThis->hdmaCfg);
2238	SSMR3PutS32(pSSM, pThis->portCfg);
2239	SSMR3PutS32(pSSM, pThis->verCfg);
2240	return VINF_SSM_DONT_CALL_AGAIN;
2241	}
2242
2243	static DECLCALLBACK(int) sb16SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
2244	{
2245	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2246
2247	sb16LiveExec(pDevIns, pSSM, 0);
2248	sb16Save(pSSM, pThis);
2249	return VINF_SUCCESS;
2250	}
2251
2252	static DECLCALLBACK(int) sb16LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
2253	{
2254	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2255
2256	AssertMsgReturn( uVersion == SB16_SAVE_STATE_VERSION
2257	\|\| uVersion == SB16_SAVE_STATE_VERSION_VBOX_30,
2258	("%u\n", uVersion),
2259	VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION);
2260	if (uVersion > SB16_SAVE_STATE_VERSION_VBOX_30)
2261	{
2262	int32_t irq;
2263	SSMR3GetS32 (pSSM, &irq);
2264	int32_t dma;
2265	SSMR3GetS32 (pSSM, &dma);
2266	int32_t hdma;
2267	SSMR3GetS32 (pSSM, &hdma);
2268	int32_t port;
2269	SSMR3GetS32 (pSSM, &port);
2270	int32_t ver;
2271	int rc = SSMR3GetS32 (pSSM, &ver);
2272	AssertRCReturn (rc, rc);
2273
2274	if ( irq != pThis->irqCfg
2275	\|\| dma != pThis->dmaCfg
2276	\|\| hdma != pThis->hdmaCfg
2277	\|\| port != pThis->portCfg
2278	\|\| ver != pThis->verCfg)
2279	{
2280	return SSMR3SetCfgError(pSSM, RT_SRC_POS,
2281	N_("config changed: irq=%x/%x dma=%x/%x hdma=%x/%x port=%x/%x ver=%x/%x (saved/config)"),
2282	irq, pThis->irqCfg,
2283	dma, pThis->dmaCfg,
2284	hdma, pThis->hdmaCfg,
2285	port, pThis->portCfg,
2286	ver, pThis->verCfg);
2287	}
2288	}
2289
2290	if (uPass != SSM_PASS_FINAL)
2291	return VINF_SUCCESS;
2292
2293	sb16Load(pSSM, pThis);
2294	return VINF_SUCCESS;
2295	}
2296
2297	/**
2298	* Creates a PDM audio stream for a specific driver.
2299	*
2300	* @returns IPRT status code.
2301	* @param pThis SB16 state.
2302	* @param pCfg Stream configuration to use.
2303	* @param pDrv Driver stream to create PDM stream for.
2304	*/
2305	static int sb16CreateDrvStream(PSB16STATE pThis, PPDMAUDIOSTREAMCFG pCfg, PSB16DRIVER pDrv)
2306	{
2307	RT_NOREF(pThis);
2308
2309	AssertReturn(pCfg->enmDir == PDMAUDIODIR_OUT, VERR_INVALID_PARAMETER);
2310	Assert(DrvAudioHlpStreamCfgIsValid(pCfg));
2311
2312	PPDMAUDIOSTREAMCFG pCfgHost = DrvAudioHlpStreamCfgDup(pCfg);
2313	if (!pCfgHost)
2314	return VERR_NO_MEMORY;
2315
2316	if (!RTStrPrintf(pCfgHost->szName, sizeof(pCfgHost->szName), "%s", pCfg->szName))
2317	{
2318	RTMemFree(pCfgHost);
2319	return VERR_BUFFER_OVERFLOW;
2320	}
2321
2322	LogFunc(("[LUN#%RU8] %s\n", pDrv->uLUN, pCfgHost->szName));
2323
2324	AssertMsg(pDrv->Out.pStream == NULL, ("[LUN#%RU8] Driver stream already present when it must not\n", pDrv->uLUN));
2325
2326	int rc = pDrv->pConnector->pfnStreamCreate(pDrv->pConnector, pCfgHost, pCfg /* pCfgGuest */, &pDrv->Out.pStream);
2327	if (RT_SUCCESS(rc))
2328	{
2329	pDrv->pConnector->pfnStreamRetain(pDrv->pConnector, pDrv->Out.pStream);
2330	LogFlowFunc(("LUN#%RU8: Created output \"%s\", rc=%Rrc\n", pDrv->uLUN, pCfg->szName, rc));
2331	}
2332
2333	if (pCfgHost)
2334	{
2335	RTMemFree(pCfgHost);
2336	pCfgHost = NULL;
2337	}
2338
2339	return rc;
2340	}
2341
2342	/**
2343	* Destroys a PDM audio stream of a specific driver.
2344	*
2345	* @param pThis SB16 state.
2346	* @param pDrv Driver stream to destroy PDM stream for.
2347	*/
2348	static void sb16DestroyDrvStream(PSB16STATE pThis, PSB16DRIVER pDrv)
2349	{
2350	AssertPtrReturnVoid(pThis);
2351	AssertPtrReturnVoid(pDrv);
2352
2353	if (pDrv->Out.pStream)
2354	{
2355	pDrv->pConnector->pfnStreamRelease(pDrv->pConnector, pDrv->Out.pStream);
2356
2357	int rc2 = pDrv->pConnector->pfnStreamDestroy(pDrv->pConnector, pDrv->Out.pStream);
2358	if (RT_SUCCESS(rc2))
2359	pDrv->Out.pStream = NULL;
2360	}
2361	}
2362
2363	static int sb16OpenOut(PSB16STATE pThis, PPDMAUDIOSTREAMCFG pCfg)
2364	{
2365	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
2366	AssertPtrReturn(pCfg, VERR_INVALID_POINTER);
2367
2368	LogFlowFuncEnter();
2369
2370	if (!DrvAudioHlpStreamCfgIsValid(pCfg))
2371	return VERR_INVALID_PARAMETER;
2372
2373	int rc = VINF_SUCCESS;
2374
2375	PSB16DRIVER pDrv;
2376	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2377	{
2378	int rc2 = sb16CreateDrvStream(pThis, pCfg, pDrv);
2379	if (RT_FAILURE(rc2))
2380	LogFunc(("Attaching stream failed with %Rrc\n", rc2));
2381
2382	/* Do not pass failure to rc here, as there might be drivers which aren't
2383	* configured / ready yet. */
2384	}
2385
2386	sb16UpdateVolume(pThis);
2387
2388	LogFlowFuncLeaveRC(rc);
2389	return rc;
2390	}
2391
2392	static void sb16CloseOut(PSB16STATE pThis)
2393	{
2394	AssertPtrReturnVoid(pThis);
2395
2396	LogFlowFuncEnter();
2397
2398	PSB16DRIVER pDrv;
2399	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2400	sb16DestroyDrvStream(pThis, pDrv);
2401
2402	LogFlowFuncLeave();
2403	}
2404
2405	/**
2406	* @interface_method_impl{PDMDEVREG,pfnReset}
2407	*/
2408	static DECLCALLBACK(void) sb16DevReset(PPDMDEVINS pDevIns)
2409	{
2410	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2411
2412	/* Bring back the device to initial state, and especially make
2413	* sure there's no interrupt or DMA activity.
2414	*/
2415	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
2416
2417	pThis->mixer_regs[0x82] = 0;
2418	pThis->csp_regs[5] = 1;
2419	pThis->csp_regs[9] = 0xf8;
2420
2421	pThis->dma_auto = 0;
2422	pThis->in_index = 0;
2423	pThis->out_data_len = 0;
2424	pThis->left_till_irq = 0;
2425	pThis->needed_bytes = 0;
2426	pThis->block_size = -1;
2427	pThis->nzero = 0;
2428	pThis->highspeed = 0;
2429	pThis->v2x6 = 0;
2430	pThis->cmd = -1;
2431
2432	sb16MixerReset(pThis);
2433	sb16SpeakerControl(pThis, 0);
2434	sb16Control(pThis, 0);
2435	sb16ResetLegacy(pThis);
2436	}
2437
2438	/**
2439	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
2440	*/
2441	static DECLCALLBACK(void ) sb16QueryInterface(struct PDMIBASE pInterface, const char *pszIID)
2442	{
2443	PSB16STATE pThis = RT_FROM_MEMBER(pInterface, SB16STATE, IBase);
2444	Assert(&pThis->IBase == pInterface);
2445
2446	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->IBase);
2447	return NULL;
2448	}
2449
2450	/**
2451	* Powers off the device.
2452	*
2453	* @param pDevIns Device instance to power off.
2454	*/
2455	static DECLCALLBACK(void) sb16PowerOff(PPDMDEVINS pDevIns)
2456	{
2457	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2458
2459	LogRel2(("SB16: Powering off ...\n"));
2460
2461	PSB16DRIVER pDrv;
2462	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2463	{
2464	if (pDrv->Out.pStream)
2465	{
2466	pDrv->pConnector->pfnStreamRelease(pDrv->pConnector, pDrv->Out.pStream);
2467
2468	int rc2 = pDrv->pConnector->pfnStreamDestroy(pDrv->pConnector, pDrv->Out.pStream);
2469	if (RT_SUCCESS(rc2))
2470	pDrv->Out.pStream = NULL;
2471	}
2472	}
2473	}
2474
2475	/**
2476	* @interface_method_impl{PDMDEVREG,pfnDestruct}
2477	*/
2478	static DECLCALLBACK(int) sb16Destruct(PPDMDEVINS pDevIns)
2479	{
2480	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
2481	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2482
2483	LogFlowFuncEnter();
2484
2485	PSB16DRIVER pDrv;
2486	while (!RTListIsEmpty(&pThis->lstDrv))
2487	{
2488	pDrv = RTListGetFirst(&pThis->lstDrv, SB16DRIVER, Node);
2489
2490	RTListNodeRemove(&pDrv->Node);
2491	RTMemFree(pDrv);
2492	}
2493
2494	return VINF_SUCCESS;
2495	}
2496
2497	static DECLCALLBACK(int) sb16Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
2498	{
2499	RT_NOREF(iInstance);
2500	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
2501	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2502
2503	/*
2504	* Validations.
2505	*/
2506	Assert(iInstance == 0);
2507	if (!CFGMR3AreValuesValid(pCfg,
2508	"IRQ\0"
2509	"DMA\0"
2510	"DMA16\0"
2511	"Port\0"
2512	"Version\0"
2513	"TimerHz\0"))
2514	return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
2515	N_("Invalid configuration for SB16 device"));
2516
2517	/*
2518	* Read config data.
2519	*/
2520	int rc = CFGMR3QuerySIntDef(pCfg, "IRQ", &pThis->irq, 5);
2521	if (RT_FAILURE(rc))
2522	return PDMDEV_SET_ERROR(pDevIns, rc,
2523	N_("SB16 configuration error: Failed to get the \"IRQ\" value"));
2524	pThis->irqCfg = pThis->irq;
2525
2526	rc = CFGMR3QuerySIntDef(pCfg, "DMA", &pThis->dma, 1);
2527	if (RT_FAILURE(rc))
2528	return PDMDEV_SET_ERROR(pDevIns, rc,
2529	N_("SB16 configuration error: Failed to get the \"DMA\" value"));
2530	pThis->dmaCfg = pThis->dma;
2531
2532	rc = CFGMR3QuerySIntDef(pCfg, "DMA16", &pThis->hdma, 5);
2533	if (RT_FAILURE(rc))
2534	return PDMDEV_SET_ERROR(pDevIns, rc,
2535	N_("SB16 configuration error: Failed to get the \"DMA16\" value"));
2536	pThis->hdmaCfg = pThis->hdma;
2537
2538	RTIOPORT Port;
2539	rc = CFGMR3QueryPortDef(pCfg, "Port", &Port, 0x220);
2540	if (RT_FAILURE(rc))
2541	return PDMDEV_SET_ERROR(pDevIns, rc,
2542	N_("SB16 configuration error: Failed to get the \"Port\" value"));
2543	pThis->port = Port;
2544	pThis->portCfg = Port;
2545
2546	uint16_t u16Version;
2547	rc = CFGMR3QueryU16Def(pCfg, "Version", &u16Version, 0x0405);
2548	if (RT_FAILURE(rc))
2549	return PDMDEV_SET_ERROR(pDevIns, rc,
2550	N_("SB16 configuration error: Failed to get the \"Version\" value"));
2551
2552	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
2553	uint16_t uTimerHz;
2554	rc = CFGMR3QueryU16Def(pCfg, "TimerHz", &uTimerHz, 100 /* Hz */);
2555	if (RT_FAILURE(rc))
2556	return PDMDEV_SET_ERROR(pDevIns, rc,
2557	N_("SB16 configuration error: failed to read Hertz (Hz) rate as unsigned integer"));
2558	#endif
2559
2560	pThis->ver = u16Version;
2561	pThis->verCfg = u16Version;
2562
2563	/*
2564	* Init instance data.
2565	*/
2566	pThis->pDevInsR3 = pDevIns;
2567	pThis->IBase.pfnQueryInterface = sb16QueryInterface;
2568	pThis->cmd = -1;
2569
2570	pThis->mixer_regs[0x80] = magic_of_irq (pThis->irq);
2571	pThis->mixer_regs[0x81] = (1 << pThis->dma) \| (1 << pThis->hdma);
2572	pThis->mixer_regs[0x82] = 2 << 5;
2573
2574	pThis->csp_regs[5] = 1;
2575	pThis->csp_regs[9] = 0xf8;
2576
2577	RTListInit(&pThis->lstDrv);
2578
2579	sb16MixerReset(pThis);
2580
2581	/*
2582	* Create timer(s), register & attach stuff.
2583	*/
2584	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, sb16TimerIRQ, pThis,
2585	TMTIMER_FLAGS_DEFAULT_CRIT_SECT, "SB16 IRQ timer", &pThis->pTimerIRQ);
2586	if (RT_FAILURE(rc))
2587	AssertMsgFailedReturn(("Error creating IRQ timer, rc=%Rrc\n", rc), rc);
2588
2589	rc = PDMDevHlpIOPortRegister(pDevIns, pThis->port + 0x04, 2, pThis,
2590	mixer_write, mixer_read, NULL, NULL, "SB16");
2591	if (RT_FAILURE(rc))
2592	return rc;
2593	rc = PDMDevHlpIOPortRegister(pDevIns, pThis->port + 0x06, 10, pThis,
2594	dsp_write, dsp_read, NULL, NULL, "SB16");
2595	if (RT_FAILURE(rc))
2596	return rc;
2597
2598	rc = PDMDevHlpDMARegister(pDevIns, pThis->hdma, sb16DMARead, pThis);
2599	if (RT_FAILURE(rc))
2600	return rc;
2601	rc = PDMDevHlpDMARegister(pDevIns, pThis->dma, sb16DMARead, pThis);
2602	if (RT_FAILURE(rc))
2603	return rc;
2604
2605	pThis->can_write = 1;
2606
2607	rc = PDMDevHlpSSMRegister3(pDevIns, SB16_SAVE_STATE_VERSION, sizeof(SB16STATE), sb16LiveExec, sb16SaveExec, sb16LoadExec);
2608	if (RT_FAILURE(rc))
2609	return rc;
2610
2611	/*
2612	* Attach driver.
2613	*/
2614	uint8_t uLUN;
2615	for (uLUN = 0; uLUN < UINT8_MAX; ++uLUN)
2616	{
2617	LogFunc(("Trying to attach driver for LUN #%RU8 ...\n", uLUN));
2618	rc = sb16AttachInternal(pThis, uLUN, 0 /* fFlags /, NULL / ppDrv */);
2619	if (RT_FAILURE(rc))
2620	{
2621	if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
2622	rc = VINF_SUCCESS;
2623	else if (rc == VERR_AUDIO_BACKEND_INIT_FAILED)
2624	{
2625	sb16Reattach(pThis, NULL /* pDrv */, uLUN, "NullAudio");
2626	PDMDevHlpVMSetRuntimeError(pDevIns, 0 /fFlags/, "HostAudioNotResponding",
2627	N_("Host audio backend initialization has failed. Selecting the NULL audio backend "
2628	"with the consequence that no sound is audible"));
2629	/* Attaching to the NULL audio backend will never fail. */
2630	rc = VINF_SUCCESS;
2631	}
2632	break;
2633	}
2634	}
2635
2636	LogFunc(("cLUNs=%RU8, rc=%Rrc\n", uLUN, rc));
2637
2638	sb16ResetLegacy(pThis);
2639
2640	#ifdef VBOX_WITH_AUDIO_SB16_ONETIME_INIT
2641	PSB16DRIVER pDrv;
2642	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2643	{
2644	/*
2645	* Only primary drivers are critical for the VM to run. Everything else
2646	* might not worth showing an own error message box in the GUI.
2647	*/
2648	if (!(pDrv->fFlags & PDMAUDIODRVFLAGS_PRIMARY))
2649	continue;
2650
2651	PPDMIAUDIOCONNECTOR pCon = pDrv->pConnector;
2652	AssertPtr(pCon);
2653
2654	/** @todo No input streams available for SB16 yet. */
2655
2656	if (!pDrv->Out.pStream)
2657	continue;
2658
2659	bool fValidOut = pCon->pfnStreamGetStatus(pCon, pDrv->Out.pStream) & PDMAUDIOSTREAMSTS_FLAG_INITIALIZED;
2660	if (!fValidOut)
2661	{
2662	LogRel(("SB16: Falling back to NULL backend (no sound audible)\n"));
2663
2664	sb16ResetLegacy(pThis);
2665	sb16Reattach(pThis, pDrv, pDrv->uLUN, "NullAudio");
2666
2667	PDMDevHlpVMSetRuntimeError(pDevIns, 0 /fFlags/, "HostAudioNotResponding",
2668	N_("No audio devices could be opened. Selecting the NULL audio backend "
2669	"with the consequence that no sound is audible"));
2670	}
2671	}
2672	#endif
2673
2674	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
2675	if (RT_SUCCESS(rc))
2676	{
2677	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, sb16TimerIO, pThis,
2678	TMTIMER_FLAGS_DEFAULT_CRIT_SECT, "SB16 IO timer", &pThis->pTimerIO);
2679	if (RT_SUCCESS(rc))
2680	{
2681	pThis->cTimerTicksIO = TMTimerGetFreq(pThis->pTimerIO) / uTimerHz;
2682	pThis->uTimerTSIO = TMTimerGet(pThis->pTimerIO);
2683	LogFunc(("Timer ticks=%RU64 (%RU16 Hz)\n", pThis->cTimerTicksIO, uTimerHz));
2684	}
2685	else
2686	AssertMsgFailedReturn(("Error creating I/O timer, rc=%Rrc\n", rc), rc);
2687	}
2688	#else /* !VBOX_WITH_AUDIO_SB16_CALLBACKS */
2689	if (RT_SUCCESS(rc))
2690	{
2691	/** @todo Merge this callback registration with the validation block above once
2692	* this becomes the standard. */
2693	PSB16DRIVER pDrv;
2694	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2695	{
2696	/* Only register primary driver.
2697	* The device emulation does the output multiplexing then. */
2698	if (pDrv->fFlags != PDMAUDIODRVFLAGS_PRIMARY)
2699	continue;
2700
2701	PDMAUDIOCBRECORD AudioCallbacks[2];
2702
2703	SB16CALLBACKCTX Ctx = { pThis, pDrv };
2704
2705	AudioCallbacks[0].enmType = PDMAUDIOCALLBACKTYPE_INPUT;
2706	AudioCallbacks[0].pfnCallback = sb16CallbackInput;
2707	AudioCallbacks[0].pvCtx = &Ctx;
2708	AudioCallbacks[0].cbCtx = sizeof(SB16CALLBACKCTX);
2709
2710	AudioCallbacks[1].enmType = PDMAUDIOCALLBACKTYPE_OUTPUT;
2711	AudioCallbacks[1].pfnCallback = sb16CallbackOutput;
2712	AudioCallbacks[1].pvCtx = &Ctx;
2713	AudioCallbacks[1].cbCtx = sizeof(SB16CALLBACKCTX);
2714
2715	rc = pDrv->pConnector->pfnRegisterCallbacks(pDrv->pConnector, AudioCallbacks, RT_ELEMENTS(AudioCallbacks));
2716	if (RT_FAILURE(rc))
2717	break;
2718	}
2719	}
2720	#endif /* VBOX_WITH_AUDIO_SB16_CALLBACKS */
2721
2722	#ifdef VBOX_AUDIO_DEBUG_DUMP_PCM_DATA
2723	RTFileDelete(VBOX_AUDIO_DEBUG_DUMP_PCM_DATA_PATH "sb16WriteAudio.pcm");
2724	#endif
2725
2726	return VINF_SUCCESS;
2727	}
2728
2729	const PDMDEVREG g_DeviceSB16 =
2730	{
2731	/* u32Version */
2732	PDM_DEVREG_VERSION,
2733	/* szName */
2734	"sb16",
2735	/* szRCMod */
2736	"",
2737	/* szR0Mod */
2738	"",
2739	/* pszDescription */
2740	"Sound Blaster 16 Controller",
2741	/* fFlags */
2742	PDM_DEVREG_FLAGS_DEFAULT_BITS,
2743	/* fClass */
2744	PDM_DEVREG_CLASS_AUDIO,
2745	/* cMaxInstances */
2746	1,
2747	/* cbInstance */
2748	sizeof(SB16STATE),
2749	/* pfnConstruct */
2750	sb16Construct,
2751	/* pfnDestruct */
2752	sb16Destruct,
2753	/* pfnRelocate */
2754	NULL,
2755	/* pfnMemSetup */
2756	NULL,
2757	/* pfnPowerOn */
2758	NULL,
2759	/* pfnReset */
2760	sb16DevReset,
2761	/* pfnSuspend */
2762	NULL,
2763	/* pfnResume */
2764	NULL,
2765	/* pfnAttach */
2766	sb16Attach,
2767	/* pfnDetach */
2768	sb16Detach,
2769	/* pfnQueryInterface */
2770	NULL,
2771	/* pfnInitComplete */
2772	NULL,
2773	/* pfnPowerOff */
2774	sb16PowerOff,
2775	/* pfnSoftReset */
2776	NULL,
2777	/* u32VersionEnd */
2778	PDM_DEVREG_VERSION
2779	};

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source: vbox/trunk/src/VBox/Devices/Audio/DevSB16.cpp@ 70671

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