DevSB16.cpp@ 71766

Last change on this file since 71766 was 71766, checked in by vboxsync, 7 years ago
DevSB16: drop confusing if (pCfgHost) check in sb16CreateDrvStream.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 84.5 KB

Line
1	/* $Id: DevSB16.cpp 71766 2018-04-09 10:56:56Z 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
75	/*********************************************************************************************************************************
76	* Global Variables *
77	*********************************************************************************************************************************/
78	static const char e3[] = "COPYRIGHT (C) CREATIVE TECHNOLOGY LTD, 1992.";
79
80
81
82	/*********************************************************************************************************************************
83	* Structures and Typedefs *
84	*********************************************************************************************************************************/
85	/**
86	* Structure defining a (host backend) driver stream.
87	* Each driver has its own instances of audio mixer streams, which then
88	* can go into the same (or even different) audio mixer sinks.
89	*/
90	typedef struct SB16DRIVERSTREAM
91	{
92	/** Associated PDM audio stream. */
93	R3PTRTYPE(PPDMAUDIOSTREAM) pStream;
94	/** The stream's current configuration. */
95	} SB16DRIVERSTREAM, *PSB16DRIVERSTREAM;
96
97	/**
98	* Struct for maintaining a host backend driver.
99	*/
100	typedef struct SB16STATE *PSB16STATE;
101	typedef struct SB16DRIVER
102	{
103	/** Node for storing this driver in our device driver list of SB16STATE. */
104	RTLISTNODER3 Node;
105	/** Pointer to SB16 controller (state). */
106	R3PTRTYPE(PSB16STATE) pSB16State;
107	/** Driver flags. */
108	PDMAUDIODRVFLAGS fFlags;
109	uint32_t PaddingFlags;
110	/** LUN # to which this driver has been assigned. */
111	uint8_t uLUN;
112	/** Whether this driver is in an attached state or not. */
113	bool fAttached;
114	uint8_t Padding[4];
115	/** Pointer to attached driver base interface. */
116	R3PTRTYPE(PPDMIBASE) pDrvBase;
117	/** Audio connector interface to the underlying host backend. */
118	R3PTRTYPE(PPDMIAUDIOCONNECTOR) pConnector;
119	/** Stream for output. */
120	SB16DRIVERSTREAM Out;
121	} SB16DRIVER, *PSB16DRIVER;
122
123	/**
124	* Structure for a SB16 stream.
125	*/
126	typedef struct SB16STREAM
127	{
128	/** The stream's current configuration. */
129	PDMAUDIOSTREAMCFG Cfg;
130	} SB16STREAM, *PSB16STREAM;
131
132	typedef struct SB16STATE
133	{
134	#ifdef VBOX
135	/** Pointer to the device instance. */
136	PPDMDEVINSR3 pDevInsR3;
137	/** Pointer to the connector of the attached audio driver. */
138	PPDMIAUDIOCONNECTOR pDrv;
139	int irqCfg;
140	int dmaCfg;
141	int hdmaCfg;
142	int portCfg;
143	int verCfg;
144	#endif
145	int irq;
146	int dma;
147	int hdma;
148	int port;
149	int ver;
150
151	int in_index;
152	int out_data_len;
153	int fmt_stereo;
154	int fmt_signed;
155	int fmt_bits;
156	PDMAUDIOFMT fmt;
157	int dma_auto;
158	int block_size;
159	int fifo;
160	int freq;
161	int time_const;
162	int speaker;
163	int needed_bytes;
164	int cmd;
165	int use_hdma;
166	int highspeed;
167	int can_write; /** @todo Value never gets 0? */
168
169	int v2x6;
170
171	uint8_t csp_param;
172	uint8_t csp_value;
173	uint8_t csp_mode;
174	uint8_t csp_regs[256];
175	uint8_t csp_index;
176	uint8_t csp_reg83[4];
177	int csp_reg83r;
178	int csp_reg83w;
179
180	uint8_t in2_data[10];
181	uint8_t out_data[50];
182	uint8_t test_reg;
183	uint8_t last_read_byte;
184	int nzero;
185
186	int left_till_irq; /** Note: Can be < 0. */
187
188	int dma_running;
189	int bytes_per_second;
190	int align;
191
192	RTLISTANCHOR lstDrv;
193	/** Number of active (running) SDn streams. */
194	uint8_t cStreamsActive;
195	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
196	/** The timer for pumping data thru the attached LUN drivers. */
197	PTMTIMERR3 pTimerIO;
198	/** Flag indicating whether the timer is active or not. */
199	bool fTimerActive;
200	uint8_t u8Padding1[7];
201	/** The timer interval for pumping data thru the LUN drivers in timer ticks. */
202	uint64_t cTimerTicksIO;
203	/** Timestamp of the last timer callback (sb16TimerIO).
204	* Used to calculate the time actually elapsed between two timer callbacks. */
205	uint64_t uTimerTSIO;
206	#endif
207	PTMTIMER pTimerIRQ;
208	/** The base interface for LUN\#0. */
209	PDMIBASE IBase;
210	/** Output stream. */
211	SB16STREAM Out;
212
213	/* mixer state */
214	uint8_t mixer_nreg;
215	uint8_t mixer_regs[256];
216	} SB16STATE, *PSB16STATE;
217
218
219	/*********************************************************************************************************************************
220	* Internal Functions *
221	*********************************************************************************************************************************/
222	static int sb16OpenOut(PSB16STATE pThis, PPDMAUDIOSTREAMCFG pCfg);
223	static void sb16CloseOut(PSB16STATE pThis);
224	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
225	static void sb16TimerMaybeStart(PSB16STATE pThis);
226	static void sb16TimerMaybeStop(PSB16STATE pThis);
227	#endif
228
229
230
231	static int magic_of_irq(int irq)
232	{
233	switch (irq)
234	{
235	case 5:
236	return 2;
237	case 7:
238	return 4;
239	case 9:
240	return 1;
241	case 10:
242	return 8;
243	default:
244	break;
245	}
246
247	LogFlowFunc(("bad irq %d\n", irq));
248	return 2;
249	}
250
251	static int irq_of_magic(int magic)
252	{
253	switch (magic)
254	{
255	case 1:
256	return 9;
257	case 2:
258	return 5;
259	case 4:
260	return 7;
261	case 8:
262	return 10;
263	default:
264	break;
265	}
266
267	LogFlowFunc(("bad irq magic %d\n", magic));
268	return -1;
269	}
270
271	#if 0 // unused // def DEBUG
272	DECLINLINE(void) log_dsp(PSB16STATE pThis)
273	{
274	LogFlowFunc(("%s:%s:%d:%s:dmasize=%d:freq=%d:const=%d:speaker=%d\n",
275	pThis->fmt_stereo ? "Stereo" : "Mono",
276	pThis->fmt_signed ? "Signed" : "Unsigned",
277	pThis->fmt_bits,
278	pThis->dma_auto ? "Auto" : "Single",
279	pThis->block_size,
280	pThis->freq,
281	pThis->time_const,
282	pThis->speaker));
283	}
284	#endif
285
286	static void sb16SpeakerControl(PSB16STATE pThis, int on)
287	{
288	pThis->speaker = on;
289	/* AUD_enable (pThis->voice, on); */
290	}
291
292	static void sb16Control(PSB16STATE pThis, int hold)
293	{
294	int dma = pThis->use_hdma ? pThis->hdma : pThis->dma;
295	pThis->dma_running = hold;
296
297	LogFlowFunc(("hold %d high %d dma %d\n", hold, pThis->use_hdma, dma));
298
299	PDMDevHlpDMASetDREQ(pThis->pDevInsR3, dma, hold);
300
301	PSB16DRIVER pDrv;
302	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
303	{
304	if (!pDrv->Out.pStream)
305	continue;
306
307	int rc2 = pDrv->pConnector->pfnStreamControl(pDrv->pConnector, pDrv->Out.pStream,
308	hold == 1 ? PDMAUDIOSTREAMCMD_ENABLE : PDMAUDIOSTREAMCMD_DISABLE);
309	LogFlowFunc(("%s: rc=%Rrc\n", pDrv->Out.pStream->szName, rc2)); NOREF(rc2);
310	}
311
312	if (hold)
313	{
314	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
315	pThis->cStreamsActive++;
316	sb16TimerMaybeStart(pThis);
317	#else
318	# error "Implement me!"
319	#endif
320	PDMDevHlpDMASchedule(pThis->pDevInsR3);
321	}
322	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
323	else
324	{
325	if (pThis->cStreamsActive)
326	pThis->cStreamsActive--;
327	sb16TimerMaybeStop(pThis);
328	}
329	#else
330	# error "Implement me!"
331	#endif
332	}
333
334	/**
335	* @callback_method_impl{PFNTMTIMERDEV}
336	*/
337	static DECLCALLBACK(void) sb16TimerIRQ(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvThis)
338	{
339	RT_NOREF(pDevIns, pTimer);
340	PSB16STATE pThis = (PSB16STATE)pvThis;
341	pThis->can_write = 1;
342	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
343	}
344
345	#define DMA8_AUTO 1
346	#define DMA8_HIGH 2
347
348	static void continue_dma8(PSB16STATE pThis)
349	{
350	if (pThis->freq > 0)
351	{
352	/* At the moment we only have one stream, the output stream. */
353	PPDMAUDIOSTREAMCFG pCfg = &pThis->Out.Cfg;
354
355	pCfg->enmDir = PDMAUDIODIR_OUT;
356	pCfg->DestSource.Dest = PDMAUDIOPLAYBACKDEST_FRONT;
357	pCfg->enmLayout = PDMAUDIOSTREAMLAYOUT_NON_INTERLEAVED;
358
359	pCfg->Props.uHz = pThis->freq;
360	pCfg->Props.cChannels = 1 << pThis->fmt_stereo;
361	pCfg->Props.cBits = pThis->fmt_bits;
362	pCfg->Props.fSigned = RT_BOOL(pThis->fmt_signed);
363	pCfg->Props.cShift = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pCfg->Props.cBits, pCfg->Props.cChannels);
364
365	strcpy(pCfg->szName, "Output");
366
367	sb16CloseOut(pThis);
368
369	int rc = sb16OpenOut(pThis, pCfg);
370	AssertRC(rc);
371	}
372
373	sb16Control(pThis, 1);
374	}
375
376	static void dma_cmd8(PSB16STATE pThis, int mask, int dma_len)
377	{
378	pThis->fmt = PDMAUDIOFMT_U8;
379	pThis->use_hdma = 0;
380	pThis->fmt_bits = 8;
381	pThis->fmt_signed = 0;
382	pThis->fmt_stereo = (pThis->mixer_regs[0x0e] & 2) != 0;
383
384	if (-1 == pThis->time_const)
385	{
386	if (pThis->freq <= 0)
387	pThis->freq = 11025;
388	}
389	else
390	{
391	int tmp = (256 - pThis->time_const);
392	pThis->freq = (1000000 + (tmp / 2)) / tmp;
393	}
394
395	if (dma_len != -1)
396	{
397	pThis->block_size = dma_len << pThis->fmt_stereo;
398	}
399	else
400	{
401	/* This is apparently the only way to make both Act1/PL
402	and SecondReality/FC work
403
404	r=andy Wow, actually someone who remembers Future Crew :-)
405
406	Act1 sets block size via command 0x48 and it's an odd number
407	SR does the same with even number
408	Both use stereo, and Creatives own documentation states that
409	0x48 sets block size in bytes less one.. go figure */
410	pThis->block_size &= ~pThis->fmt_stereo;
411	}
412
413	pThis->freq >>= pThis->fmt_stereo;
414	pThis->left_till_irq = pThis->block_size;
415	pThis->bytes_per_second = (pThis->freq << pThis->fmt_stereo);
416	/* pThis->highspeed = (mask & DMA8_HIGH) != 0; */
417	pThis->dma_auto = (mask & DMA8_AUTO) != 0;
418	pThis->align = (1 << pThis->fmt_stereo) - 1;
419
420	if (pThis->block_size & pThis->align)
421	LogFlowFunc(("warning: misaligned block size %d, alignment %d\n",
422	pThis->block_size, pThis->align + 1));
423
424	LogFlowFunc(("freq %d, stereo %d, sign %d, bits %d, dma %d, auto %d, fifo %d, high %d\n",
425	pThis->freq, pThis->fmt_stereo, pThis->fmt_signed, pThis->fmt_bits,
426	pThis->block_size, pThis->dma_auto, pThis->fifo, pThis->highspeed));
427
428	continue_dma8(pThis);
429	sb16SpeakerControl(pThis, 1);
430	}
431
432	static void dma_cmd(PSB16STATE pThis, uint8_t cmd, uint8_t d0, int dma_len)
433	{
434	pThis->use_hdma = cmd < 0xc0;
435	pThis->fifo = (cmd >> 1) & 1;
436	pThis->dma_auto = (cmd >> 2) & 1;
437	pThis->fmt_signed = (d0 >> 4) & 1;
438	pThis->fmt_stereo = (d0 >> 5) & 1;
439
440	switch (cmd >> 4)
441	{
442	case 11:
443	pThis->fmt_bits = 16;
444	break;
445
446	case 12:
447	pThis->fmt_bits = 8;
448	break;
449	}
450
451	if (-1 != pThis->time_const)
452	{
453	#if 1
454	int tmp = 256 - pThis->time_const;
455	pThis->freq = (1000000 + (tmp / 2)) / tmp;
456	#else
457	/* pThis->freq = 1000000 / ((255 - pThis->time_const) << pThis->fmt_stereo); */
458	pThis->freq = 1000000 / ((255 - pThis->time_const));
459	#endif
460	pThis->time_const = -1;
461	}
462
463	pThis->block_size = dma_len + 1;
464	pThis->block_size <<= ((pThis->fmt_bits == 16) ? 1 : 0);
465	if (!pThis->dma_auto)
466	{
467	/*
468	* It is clear that for DOOM and auto-init this value
469	* shouldn't take stereo into account, while Miles Sound Systems
470	* setsound.exe with single transfer mode wouldn't work without it
471	* wonders of SB16 yet again.
472	*/
473	pThis->block_size <<= pThis->fmt_stereo;
474	}
475
476	LogFlowFunc(("freq %d, stereo %d, sign %d, bits %d, dma %d, auto %d, fifo %d, high %d\n",
477	pThis->freq, pThis->fmt_stereo, pThis->fmt_signed, pThis->fmt_bits,
478	pThis->block_size, pThis->dma_auto, pThis->fifo, pThis->highspeed));
479
480	if (16 == pThis->fmt_bits)
481	pThis->fmt = pThis->fmt_signed ? PDMAUDIOFMT_S16 : PDMAUDIOFMT_U16;
482	else
483	pThis->fmt = pThis->fmt_signed ? PDMAUDIOFMT_S8 : PDMAUDIOFMT_U8;
484
485	pThis->left_till_irq = pThis->block_size;
486
487	pThis->bytes_per_second = (pThis->freq << pThis->fmt_stereo) << ((pThis->fmt_bits == 16) ? 1 : 0);
488	pThis->highspeed = 0;
489	pThis->align = (1 << (pThis->fmt_stereo + (pThis->fmt_bits == 16))) - 1;
490	if (pThis->block_size & pThis->align)
491	{
492	LogFlowFunc(("warning: misaligned block size %d, alignment %d\n",
493	pThis->block_size, pThis->align + 1));
494	}
495
496	if (pThis->freq)
497	{
498	/* At the moment we only have one stream, the output stream. */
499	PPDMAUDIOSTREAMCFG pCfg = &pThis->Out.Cfg;
500
501	pCfg->enmDir = PDMAUDIODIR_OUT;
502	pCfg->DestSource.Dest = PDMAUDIOPLAYBACKDEST_FRONT;
503	pCfg->enmLayout = PDMAUDIOSTREAMLAYOUT_NON_INTERLEAVED;
504
505	pCfg->Props.uHz = pThis->freq;
506	pCfg->Props.cChannels = 1 << pThis->fmt_stereo;
507	pCfg->Props.cBits = pThis->fmt_bits;
508	pCfg->Props.fSigned = RT_BOOL(pThis->fmt_signed);
509	pCfg->Props.cShift = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pCfg->Props.cBits, pCfg->Props.cChannels);
510
511	strcpy(pCfg->szName, "Output");
512
513	sb16CloseOut(pThis);
514
515	int rc = sb16OpenOut(pThis, pCfg);
516	AssertRC(rc);
517	}
518
519	sb16Control(pThis, 1);
520	sb16SpeakerControl(pThis, 1);
521	}
522
523	static inline void dsp_out_data (PSB16STATE pThis, uint8_t val)
524	{
525	LogFlowFunc(("outdata %#x\n", val));
526	if ((size_t) pThis->out_data_len < sizeof (pThis->out_data)) {
527	pThis->out_data[pThis->out_data_len++] = val;
528	}
529	}
530
531	static inline uint8_t dsp_get_data (PSB16STATE pThis)
532	{
533	if (pThis->in_index) {
534	return pThis->in2_data[--pThis->in_index];
535	}
536	else {
537	LogFlowFunc(("buffer underflow\n"));
538	return 0;
539	}
540	}
541
542	static void sb16HandleCommand(PSB16STATE pThis, uint8_t cmd)
543	{
544	LogFlowFunc(("command %#x\n", cmd));
545
546	if (cmd > 0xaf && cmd < 0xd0)
547	{
548	if (cmd & 8) /** @todo Handle recording. */
549	LogFlowFunc(("ADC not yet supported (command %#x)\n", cmd));
550
551	switch (cmd >> 4)
552	{
553	case 11:
554	case 12:
555	break;
556	default:
557	LogFlowFunc(("%#x wrong bits\n", cmd));
558	}
559
560	pThis->needed_bytes = 3;
561	}
562	else
563	{
564	pThis->needed_bytes = 0;
565
566	switch (cmd)
567	{
568	case 0x03:
569	dsp_out_data(pThis, 0x10); /* pThis->csp_param); */
570	goto warn;
571
572	case 0x04:
573	pThis->needed_bytes = 1;
574	goto warn;
575
576	case 0x05:
577	pThis->needed_bytes = 2;
578	goto warn;
579
580	case 0x08:
581	/* __asm__ ("int3"); */
582	goto warn;
583
584	case 0x0e:
585	pThis->needed_bytes = 2;
586	goto warn;
587
588	case 0x09:
589	dsp_out_data(pThis, 0xf8);
590	goto warn;
591
592	case 0x0f:
593	pThis->needed_bytes = 1;
594	goto warn;
595
596	case 0x10:
597	pThis->needed_bytes = 1;
598	goto warn;
599
600	case 0x14:
601	pThis->needed_bytes = 2;
602	pThis->block_size = 0;
603	break;
604
605	case 0x1c: /* Auto-Initialize DMA DAC, 8-bit */
606	dma_cmd8(pThis, DMA8_AUTO, -1);
607	break;
608
609	case 0x20: /* Direct ADC, Juice/PL */
610	dsp_out_data(pThis, 0xff);
611	goto warn;
612
613	case 0x35:
614	LogFlowFunc(("0x35 - MIDI command not implemented\n"));
615	break;
616
617	case 0x40:
618	pThis->freq = -1;
619	pThis->time_const = -1;
620	pThis->needed_bytes = 1;
621	break;
622
623	case 0x41:
624	pThis->freq = -1;
625	pThis->time_const = -1;
626	pThis->needed_bytes = 2;
627	break;
628
629	case 0x42:
630	pThis->freq = -1;
631	pThis->time_const = -1;
632	pThis->needed_bytes = 2;
633	goto warn;
634
635	case 0x45:
636	dsp_out_data(pThis, 0xaa);
637	goto warn;
638
639	case 0x47: /* Continue Auto-Initialize DMA 16bit */
640	break;
641
642	case 0x48:
643	pThis->needed_bytes = 2;
644	break;
645
646	case 0x74:
647	pThis->needed_bytes = 2; /* DMA DAC, 4-bit ADPCM */
648	LogFlowFunc(("0x75 - DMA DAC, 4-bit ADPCM not implemented\n"));
649	break;
650
651	case 0x75: /* DMA DAC, 4-bit ADPCM Reference */
652	pThis->needed_bytes = 2;
653	LogFlowFunc(("0x74 - DMA DAC, 4-bit ADPCM Reference not implemented\n"));
654	break;
655
656	case 0x76: /* DMA DAC, 2.6-bit ADPCM */
657	pThis->needed_bytes = 2;
658	LogFlowFunc(("0x74 - DMA DAC, 2.6-bit ADPCM not implemented\n"));
659	break;
660
661	case 0x77: /* DMA DAC, 2.6-bit ADPCM Reference */
662	pThis->needed_bytes = 2;
663	LogFlowFunc(("0x74 - DMA DAC, 2.6-bit ADPCM Reference not implemented\n"));
664	break;
665
666	case 0x7d:
667	LogFlowFunc(("0x7d - Autio-Initialize DMA DAC, 4-bit ADPCM Reference\n"));
668	LogFlowFunc(("not implemented\n"));
669	break;
670
671	case 0x7f:
672	LogFlowFunc(("0x7d - Autio-Initialize DMA DAC, 2.6-bit ADPCM Reference\n"));
673	LogFlowFunc(("not implemented\n"));
674	break;
675
676	case 0x80:
677	pThis->needed_bytes = 2;
678	break;
679
680	case 0x90:
681	case 0x91:
682	dma_cmd8(pThis, (((cmd & 1) == 0) ? 1 : 0) \| DMA8_HIGH, -1);
683	break;
684
685	case 0xd0: /* halt DMA operation. 8bit */
686	sb16Control(pThis, 0);
687	break;
688
689	case 0xd1: /* speaker on */
690	sb16SpeakerControl(pThis, 1);
691	break;
692
693	case 0xd3: /* speaker off */
694	sb16SpeakerControl(pThis, 0);
695	break;
696
697	case 0xd4: /* continue DMA operation. 8bit */
698	/* KQ6 (or maybe Sierras audblst.drv in general) resets
699	the frequency between halt/continue */
700	continue_dma8(pThis);
701	break;
702
703	case 0xd5: /* halt DMA operation. 16bit */
704	sb16Control(pThis, 0);
705	break;
706
707	case 0xd6: /* continue DMA operation. 16bit */
708	sb16Control(pThis, 1);
709	break;
710
711	case 0xd9: /* exit auto-init DMA after this block. 16bit */
712	pThis->dma_auto = 0;
713	break;
714
715	case 0xda: /* exit auto-init DMA after this block. 8bit */
716	pThis->dma_auto = 0;
717	break;
718
719	case 0xe0: /* DSP identification */
720	pThis->needed_bytes = 1;
721	break;
722
723	case 0xe1:
724	dsp_out_data(pThis, pThis->ver & 0xff);
725	dsp_out_data(pThis, pThis->ver >> 8);
726	break;
727
728	case 0xe2:
729	pThis->needed_bytes = 1;
730	goto warn;
731
732	case 0xe3:
733	{
734	for (int i = sizeof (e3) - 1; i >= 0; --i)
735	dsp_out_data(pThis, e3[i]);
736
737	break;
738	}
739
740	case 0xe4: /* write test reg */
741	pThis->needed_bytes = 1;
742	break;
743
744	case 0xe7:
745	LogFlowFunc(("Attempt to probe for ESS (0xe7)?\n"));
746	break;
747
748	case 0xe8: /* read test reg */
749	dsp_out_data(pThis, pThis->test_reg);
750	break;
751
752	case 0xf2:
753	case 0xf3:
754	dsp_out_data(pThis, 0xaa);
755	pThis->mixer_regs[0x82] \|= (cmd == 0xf2) ? 1 : 2;
756	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
757	break;
758
759	case 0xf8:
760	/* Undocumented, used by old Creative diagnostic programs. */
761	dsp_out_data (pThis, 0);
762	goto warn;
763
764	case 0xf9:
765	pThis->needed_bytes = 1;
766	goto warn;
767
768	case 0xfa:
769	dsp_out_data (pThis, 0);
770	goto warn;
771
772	case 0xfc: /* FIXME */
773	dsp_out_data (pThis, 0);
774	goto warn;
775
776	default:
777	LogFlowFunc(("Unrecognized command %#x\n", cmd));
778	break;
779	}
780	}
781
782	if (!pThis->needed_bytes)
783	LogFlow(("\n"));
784
785	exit:
786
787	if (!pThis->needed_bytes)
788	pThis->cmd = -1;
789	else
790	pThis->cmd = cmd;
791
792	return;
793
794	warn:
795	LogFlowFunc(("warning: command %#x,%d is not truly understood yet\n",
796	cmd, pThis->needed_bytes));
797	goto exit;
798	}
799
800	static uint16_t dsp_get_lohi (PSB16STATE pThis)
801	{
802	uint8_t hi = dsp_get_data (pThis);
803	uint8_t lo = dsp_get_data (pThis);
804	return (hi << 8) \| lo;
805	}
806
807	static uint16_t dsp_get_hilo (PSB16STATE pThis)
808	{
809	uint8_t lo = dsp_get_data (pThis);
810	uint8_t hi = dsp_get_data (pThis);
811	return (hi << 8) \| lo;
812	}
813
814	static void complete(PSB16STATE pThis)
815	{
816	int d0, d1, d2;
817	LogFlowFunc(("complete command %#x, in_index %d, needed_bytes %d\n",
818	pThis->cmd, pThis->in_index, pThis->needed_bytes));
819
820	if (pThis->cmd > 0xaf && pThis->cmd < 0xd0)
821	{
822	d2 = dsp_get_data (pThis);
823	d1 = dsp_get_data (pThis);
824	d0 = dsp_get_data (pThis);
825
826	if (pThis->cmd & 8)
827	LogFlowFunc(("ADC params cmd = %#x d0 = %d, d1 = %d, d2 = %d\n", pThis->cmd, d0, d1, d2));
828	else
829	{
830	LogFlowFunc(("cmd = %#x d0 = %d, d1 = %d, d2 = %d\n", pThis->cmd, d0, d1, d2));
831	dma_cmd(pThis, pThis->cmd, d0, d1 + (d2 << 8));
832	}
833	}
834	else
835	{
836	switch (pThis->cmd)
837	{
838	case 0x04:
839	pThis->csp_mode = dsp_get_data (pThis);
840	pThis->csp_reg83r = 0;
841	pThis->csp_reg83w = 0;
842	LogFlowFunc(("CSP command 0x04: mode=%#x\n", pThis->csp_mode));
843	break;
844
845	case 0x05:
846	pThis->csp_param = dsp_get_data (pThis);
847	pThis->csp_value = dsp_get_data (pThis);
848	LogFlowFunc(("CSP command 0x05: param=%#x value=%#x\n",
849	pThis->csp_param,
850	pThis->csp_value));
851	break;
852
853	case 0x0e:
854	{
855	d0 = dsp_get_data(pThis);
856	d1 = dsp_get_data(pThis);
857	LogFlowFunc(("write CSP register %d <- %#x\n", d1, d0));
858	if (d1 == 0x83)
859	{
860	LogFlowFunc(("0x83[%d] <- %#x\n", pThis->csp_reg83r, d0));
861	pThis->csp_reg83[pThis->csp_reg83r % 4] = d0;
862	pThis->csp_reg83r += 1;
863	}
864	else
865	pThis->csp_regs[d1] = d0;
866	break;
867	}
868
869	case 0x0f:
870	d0 = dsp_get_data(pThis);
871	LogFlowFunc(("read CSP register %#x -> %#x, mode=%#x\n", d0, pThis->csp_regs[d0], pThis->csp_mode));
872	if (d0 == 0x83)
873	{
874	LogFlowFunc(("0x83[%d] -> %#x\n",
875	pThis->csp_reg83w,
876	pThis->csp_reg83[pThis->csp_reg83w % 4]));
877	dsp_out_data (pThis, pThis->csp_reg83[pThis->csp_reg83w % 4]);
878	pThis->csp_reg83w += 1;
879	}
880	else
881	dsp_out_data(pThis, pThis->csp_regs[d0]);
882	break;
883
884	case 0x10:
885	d0 = dsp_get_data(pThis);
886	LogFlowFunc(("cmd 0x10 d0=%#x\n", d0));
887	break;
888
889	case 0x14:
890	dma_cmd8(pThis, 0, dsp_get_lohi (pThis) + 1);
891	break;
892
893	case 0x40:
894	pThis->time_const = dsp_get_data(pThis);
895	LogFlowFunc(("set time const %d\n", pThis->time_const));
896	break;
897
898	case 0x42: /* FT2 sets output freq with this, go figure */
899	#if 0
900	LogFlowFunc(("cmd 0x42 might not do what it think it should\n"));
901	#endif
902	case 0x41:
903	pThis->freq = dsp_get_hilo(pThis);
904	LogFlowFunc(("set freq %d\n", pThis->freq));
905	break;
906
907	case 0x48:
908	pThis->block_size = dsp_get_lohi(pThis) + 1;
909	LogFlowFunc(("set dma block len %d\n", pThis->block_size));
910	break;
911
912	case 0x74:
913	case 0x75:
914	case 0x76:
915	case 0x77:
916	/* ADPCM stuff, ignore */
917	break;
918
919	case 0x80:
920	{
921	int freq, samples, bytes;
922	uint64_t ticks;
923
924	freq = pThis->freq > 0 ? pThis->freq : 11025;
925	samples = dsp_get_lohi (pThis) + 1;
926	bytes = samples << pThis->fmt_stereo << ((pThis->fmt_bits == 16) ? 1 : 0);
927	ticks = (bytes * TMTimerGetFreq(pThis->pTimerIRQ)) / freq;
928	if (ticks < TMTimerGetFreq(pThis->pTimerIRQ) / 1024)
929	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
930	else
931	TMTimerSet(pThis->pTimerIRQ, TMTimerGet(pThis->pTimerIRQ) + ticks);
932	LogFlowFunc(("mix silence: %d samples, %d bytes, %RU64 ticks\n", samples, bytes, ticks));
933	break;
934	}
935
936	case 0xe0:
937	d0 = dsp_get_data(pThis);
938	pThis->out_data_len = 0;
939	LogFlowFunc(("E0 data = %#x\n", d0));
940	dsp_out_data(pThis, ~d0);
941	break;
942
943	case 0xe2:
944	d0 = dsp_get_data(pThis);
945	LogFlow(("SB16:E2 = %#x\n", d0));
946	break;
947
948	case 0xe4:
949	pThis->test_reg = dsp_get_data(pThis);
950	break;
951
952	case 0xf9:
953	d0 = dsp_get_data(pThis);
954	LogFlowFunc(("command 0xf9 with %#x\n", d0));
955	switch (d0) {
956	case 0x0e:
957	dsp_out_data(pThis, 0xff);
958	break;
959
960	case 0x0f:
961	dsp_out_data(pThis, 0x07);
962	break;
963
964	case 0x37:
965	dsp_out_data(pThis, 0x38);
966	break;
967
968	default:
969	dsp_out_data(pThis, 0x00);
970	break;
971	}
972	break;
973
974	default:
975	LogFlowFunc(("complete: unrecognized command %#x\n", pThis->cmd));
976	return;
977	}
978	}
979
980	LogFlow(("\n"));
981	pThis->cmd = -1;
982	return;
983	}
984
985	static uint8_t sb16MixRegToVol(PSB16STATE pThis, int reg)
986	{
987	/* The SB16 mixer has a 0 to -62dB range in 32 levels (2dB each step).
988	* We use a 0 to -96dB range in 256 levels (0.375dB each step).
989	* Only the top 5 bits of a mixer register are used.
990	*/
991	uint8_t steps = 31 - (pThis->mixer_regs[reg] >> 3);
992	uint8_t vol = 255 - steps * 16 / 3; /* (2dB8) / (0.375dB8) */
993	return vol;
994	}
995
996	/**
997	* Returns the device's current master volume.
998	*
999	* @param pThis SB16 state.
1000	* @param pVol Where to store the master volume information.
1001	*/
1002	static void sb16GetMasterVolume(PSB16STATE pThis, PPDMAUDIOVOLUME pVol)
1003	{
1004	/* There's no mute switch, only volume controls. */
1005	uint8_t lvol = sb16MixRegToVol(pThis, 0x30);
1006	uint8_t rvol = sb16MixRegToVol(pThis, 0x31);
1007
1008	pVol->fMuted = false;
1009	pVol->uLeft = lvol;
1010	pVol->uRight = rvol;
1011	}
1012
1013	/**
1014	* Returns the device's current output stream volume.
1015	*
1016	* @param pThis SB16 state.
1017	* @param pVol Where to store the output stream volume information.
1018	*/
1019	static void sb16GetPcmOutVolume(PSB16STATE pThis, PPDMAUDIOVOLUME pVol)
1020	{
1021	/* There's no mute switch, only volume controls. */
1022	uint8_t lvol = sb16MixRegToVol(pThis, 0x32);
1023	uint8_t rvol = sb16MixRegToVol(pThis, 0x33);
1024
1025	pVol->fMuted = false;
1026	pVol->uLeft = lvol;
1027	pVol->uRight = rvol;
1028	}
1029
1030	static void sb16UpdateVolume(PSB16STATE pThis)
1031	{
1032	PDMAUDIOVOLUME VolMaster;
1033	sb16GetMasterVolume(pThis, &VolMaster);
1034
1035	PDMAUDIOVOLUME VolOut;
1036	sb16GetPcmOutVolume(pThis, &VolOut);
1037
1038	/* Combine the master + output stream volume. */
1039	PDMAUDIOVOLUME VolCombined;
1040	RT_ZERO(VolCombined);
1041
1042	VolCombined.fMuted = VolMaster.fMuted \|\| VolOut.fMuted;
1043	if (!VolCombined.fMuted)
1044	{
1045	VolCombined.uLeft = ( (VolOut.uLeft ? VolOut.uLeft : 1)
1046	* (VolMaster.uLeft ? VolMaster.uLeft : 1)) / PDMAUDIO_VOLUME_MAX;
1047
1048	VolCombined.uRight = ( (VolOut.uRight ? VolOut.uRight : 1)
1049	* (VolMaster.uRight ? VolMaster.uRight : 1)) / PDMAUDIO_VOLUME_MAX;
1050	}
1051
1052	PSB16DRIVER pDrv;
1053	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
1054	{
1055	if (!pDrv->Out.pStream)
1056	continue;
1057
1058	int rc2 = pDrv->pConnector->pfnStreamSetVolume(pDrv->pConnector, pDrv->Out.pStream, &VolCombined);
1059	AssertRC(rc2);
1060	}
1061	}
1062
1063	static void sb16CmdResetLegacy(PSB16STATE pThis)
1064	{
1065	LogFlowFuncEnter();
1066
1067	sb16CloseOut(pThis);
1068
1069	pThis->freq = 11025;
1070	pThis->fmt_signed = 0;
1071	pThis->fmt_bits = 8;
1072	pThis->fmt_stereo = 0;
1073
1074	/* At the moment we only have one stream, the output stream. */
1075	PPDMAUDIOSTREAMCFG pCfg = &pThis->Out.Cfg;
1076
1077	pCfg->enmDir = PDMAUDIODIR_OUT;
1078	pCfg->DestSource.Dest = PDMAUDIOPLAYBACKDEST_FRONT;
1079	pCfg->enmLayout = PDMAUDIOSTREAMLAYOUT_NON_INTERLEAVED;
1080
1081	pCfg->Props.uHz = pThis->freq;
1082	pCfg->Props.cChannels = 1; /* Mono */
1083	pCfg->Props.cBits = 8;
1084	pCfg->Props.fSigned = false;
1085	pCfg->Props.cShift = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pCfg->Props.cBits, pCfg->Props.cChannels);
1086
1087	AssertCompile(sizeof(pCfg->szName) > sizeof("Output"));
1088	strcpy(pCfg->szName, "Output");
1089
1090	sb16CloseOut(pThis);
1091	}
1092
1093	static void sb16CmdReset(PSB16STATE pThis)
1094	{
1095	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1096	if (pThis->dma_auto)
1097	{
1098	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
1099	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1100	}
1101
1102	pThis->mixer_regs[0x82] = 0;
1103	pThis->dma_auto = 0;
1104	pThis->in_index = 0;
1105	pThis->out_data_len = 0;
1106	pThis->left_till_irq = 0;
1107	pThis->needed_bytes = 0;
1108	pThis->block_size = -1;
1109	pThis->nzero = 0;
1110	pThis->highspeed = 0;
1111	pThis->v2x6 = 0;
1112	pThis->cmd = -1;
1113
1114	dsp_out_data(pThis, 0xaa);
1115	sb16SpeakerControl(pThis, 0);
1116
1117	sb16Control(pThis, 0);
1118	sb16CmdResetLegacy(pThis);
1119	}
1120
1121	/**
1122	* @callback_method_impl{PFNIOMIOPORTOUT}
1123	*/
1124	static DECLCALLBACK(int) dsp_write(PPDMDEVINS pDevIns, void *opaque, RTIOPORT nport, uint32_t val, unsigned cb)
1125	{
1126	RT_NOREF(pDevIns, cb);
1127	PSB16STATE pThis = (PSB16STATE)opaque;
1128	int iport = nport - pThis->port;
1129
1130	LogFlowFunc(("write %#x <- %#x\n", nport, val));
1131	switch (iport)
1132	{
1133	case 0x06:
1134	switch (val)
1135	{
1136	case 0x00:
1137	{
1138	if (pThis->v2x6 == 1)
1139	{
1140	if (0 && pThis->highspeed)
1141	{
1142	pThis->highspeed = 0;
1143	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1144	sb16Control(pThis, 0);
1145	}
1146	else
1147	sb16CmdReset(pThis);
1148	}
1149	pThis->v2x6 = 0;
1150	break;
1151	}
1152
1153	case 0x01:
1154	case 0x03: /* FreeBSD kludge */
1155	pThis->v2x6 = 1;
1156	break;
1157
1158	case 0xc6:
1159	pThis->v2x6 = 0; /* Prince of Persia, csp.sys, diagnose.exe */
1160	break;
1161
1162	case 0xb8: /* Panic */
1163	sb16CmdReset(pThis);
1164	break;
1165
1166	case 0x39:
1167	dsp_out_data(pThis, 0x38);
1168	sb16CmdReset(pThis);
1169	pThis->v2x6 = 0x39;
1170	break;
1171
1172	default:
1173	pThis->v2x6 = val;
1174	break;
1175	}
1176	break;
1177
1178	case 0x0c: /* Write data or command \| write status */
1179	#if 0
1180	if (pThis->highspeed)
1181	break;
1182	#endif
1183	if (0 == pThis->needed_bytes)
1184	{
1185	sb16HandleCommand(pThis, val);
1186	#if 0
1187	if (0 == pThis->needed_bytes) {
1188	log_dsp (pThis);
1189	}
1190	#endif
1191	}
1192	else
1193	{
1194	if (pThis->in_index == sizeof (pThis->in2_data))
1195	{
1196	LogFlowFunc(("in data overrun\n"));
1197	}
1198	else
1199	{
1200	pThis->in2_data[pThis->in_index++] = val;
1201	if (pThis->in_index == pThis->needed_bytes)
1202	{
1203	pThis->needed_bytes = 0;
1204	complete (pThis);
1205	#if 0
1206	log_dsp (pThis);
1207	#endif
1208	}
1209	}
1210	}
1211	break;
1212
1213	default:
1214	LogFlowFunc(("nport=%#x, val=%#x)\n", nport, val));
1215	break;
1216	}
1217
1218	return VINF_SUCCESS;
1219	}
1220
1221
1222	/**
1223	* @callback_method_impl{PFNIOMIOPORTIN}
1224	*/
1225	static DECLCALLBACK(int) dsp_read(PPDMDEVINS pDevIns, void opaque, RTIOPORT nport, uint32_t pu32, unsigned cb)
1226	{
1227	RT_NOREF(pDevIns, cb);
1228	PSB16STATE pThis = (PSB16STATE)opaque;
1229	int iport, retval, ack = 0;
1230
1231	iport = nport - pThis->port;
1232
1233	/** @todo reject non-byte access?
1234	* The spec does not mention a non-byte access so we should check how real hardware behaves. */
1235
1236	switch (iport)
1237	{
1238	case 0x06: /* reset */
1239	retval = 0xff;
1240	break;
1241
1242	case 0x0a: /* read data */
1243	if (pThis->out_data_len)
1244	{
1245	retval = pThis->out_data[--pThis->out_data_len];
1246	pThis->last_read_byte = retval;
1247	}
1248	else
1249	{
1250	if (pThis->cmd != -1)
1251	LogFlowFunc(("empty output buffer for command %#x\n", pThis->cmd));
1252	retval = pThis->last_read_byte;
1253	/* goto error; */
1254	}
1255	break;
1256
1257	case 0x0c: /* 0 can write */
1258	retval = pThis->can_write ? 0 : 0x80;
1259	break;
1260
1261	case 0x0d: /* timer interrupt clear */
1262	/* LogFlowFunc(("timer interrupt clear\n")); */
1263	retval = 0;
1264	break;
1265
1266	case 0x0e: /* data available status \| irq 8 ack */
1267	retval = (!pThis->out_data_len \|\| pThis->highspeed) ? 0 : 0x80;
1268	if (pThis->mixer_regs[0x82] & 1)
1269	{
1270	ack = 1;
1271	pThis->mixer_regs[0x82] &= ~1;
1272	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1273	}
1274	break;
1275
1276	case 0x0f: /* irq 16 ack */
1277	retval = 0xff;
1278	if (pThis->mixer_regs[0x82] & 2)
1279	{
1280	ack = 1;
1281	pThis->mixer_regs[0x82] &= ~2;
1282	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
1283	}
1284	break;
1285
1286	default:
1287	goto error;
1288	}
1289
1290	if (!ack)
1291	LogFlowFunc(("read %#x -> %#x\n", nport, retval));
1292
1293	*pu32 = retval;
1294	return VINF_SUCCESS;
1295
1296	error:
1297	LogFlowFunc(("warning: dsp_read %#x error\n", nport));
1298	return VERR_IOM_IOPORT_UNUSED;
1299	}
1300
1301	static void sb16MixerReset(PSB16STATE pThis)
1302	{
1303	memset(pThis->mixer_regs, 0xff, 0x7f);
1304	memset(pThis->mixer_regs + 0x83, 0xff, sizeof (pThis->mixer_regs) - 0x83);
1305
1306	pThis->mixer_regs[0x02] = 4; /* master volume 3bits */
1307	pThis->mixer_regs[0x06] = 4; /* MIDI volume 3bits */
1308	pThis->mixer_regs[0x08] = 0; /* CD volume 3bits */
1309	pThis->mixer_regs[0x0a] = 0; /* voice volume 2bits */
1310
1311	/* d5=input filt, d3=lowpass filt, d1,d2=input source */
1312	pThis->mixer_regs[0x0c] = 0;
1313
1314	/* d5=output filt, d1=stereo switch */
1315	pThis->mixer_regs[0x0e] = 0;
1316
1317	/* voice volume L d5,d7, R d1,d3 */
1318	pThis->mixer_regs[0x04] = (12 << 4) \| 12;
1319	/* master ... */
1320	pThis->mixer_regs[0x22] = (12 << 4) \| 12;
1321	/* MIDI ... */
1322	pThis->mixer_regs[0x26] = (12 << 4) \| 12;
1323
1324	/* master/voice/MIDI L/R volume */
1325	for (int i = 0x30; i < 0x36; i++)
1326	pThis->mixer_regs[i] = 24 << 3; /* -14 dB */
1327
1328	/* treble/bass */
1329	for (int i = 0x44; i < 0x48; i++)
1330	pThis->mixer_regs[i] = 0x80;
1331
1332	/* Update the master (mixer) and PCM out volumes. */
1333	sb16UpdateVolume(pThis);
1334	}
1335
1336	static int mixer_write_indexb(PSB16STATE pThis, uint8_t val)
1337	{
1338	pThis->mixer_nreg = val;
1339	return VINF_SUCCESS;
1340	}
1341
1342	uint32_t popcount(uint32_t u) /** @todo r=andy WTF? */
1343	{
1344	u = ((u&0x55555555) + ((u>>1)&0x55555555));
1345	u = ((u&0x33333333) + ((u>>2)&0x33333333));
1346	u = ((u&0x0f0f0f0f) + ((u>>4)&0x0f0f0f0f));
1347	u = ((u&0x00ff00ff) + ((u>>8)&0x00ff00ff));
1348	u = ( u&0x0000ffff) + (u>>16);
1349	return u;
1350	}
1351
1352	uint32_t lsbindex(uint32_t u)
1353	{
1354	return popcount((u & -(int32_t)u) - 1);
1355	}
1356
1357	/* Convert SB16 to SB Pro mixer volume (left). */
1358	static inline void sb16ConvVolumeL(PSB16STATE pThis, unsigned reg, uint8_t val)
1359	{
1360	/* High nibble in SBP mixer. */
1361	pThis->mixer_regs[reg] = (pThis->mixer_regs[reg] & 0x0f) \| (val & 0xf0);
1362	}
1363
1364	/* Convert SB16 to SB Pro mixer volume (right). */
1365	static inline void sb16ConvVolumeR(PSB16STATE pThis, unsigned reg, uint8_t val)
1366	{
1367	/* Low nibble in SBP mixer. */
1368	pThis->mixer_regs[reg] = (pThis->mixer_regs[reg] & 0xf0) \| (val >> 4);
1369	}
1370
1371	/* Convert SB Pro to SB16 mixer volume (left + right). */
1372	static inline void sb16ConvVolumeOldToNew(PSB16STATE pThis, unsigned reg, uint8_t val)
1373	{
1374	/* Left channel. */
1375	pThis->mixer_regs[reg + 0] = (val & 0xf0) \| RT_BIT(3);
1376	/* Right channel (the register immediately following). */
1377	pThis->mixer_regs[reg + 1] = (val << 4) \| RT_BIT(3);
1378	}
1379
1380
1381	static int mixer_write_datab(PSB16STATE pThis, uint8_t val)
1382	{
1383	bool fUpdateMaster = false;
1384	bool fUpdateStream = false;
1385
1386	LogFlowFunc(("mixer_write [%#x] <- %#x\n", pThis->mixer_nreg, val));
1387
1388	switch (pThis->mixer_nreg)
1389	{
1390	case 0x00:
1391	sb16MixerReset(pThis);
1392	/* And update the actual volume, too. */
1393	fUpdateMaster = true;
1394	fUpdateStream = true;
1395	break;
1396
1397	case 0x04: /* Translate from old style voice volume (L/R). */
1398	sb16ConvVolumeOldToNew(pThis, 0x32, val);
1399	fUpdateStream = true;
1400	break;
1401
1402	case 0x22: /* Translate from old style master volume (L/R). */
1403	sb16ConvVolumeOldToNew(pThis, 0x30, val);
1404	fUpdateMaster = true;
1405	break;
1406
1407	case 0x26: /* Translate from old style MIDI volume (L/R). */
1408	sb16ConvVolumeOldToNew(pThis, 0x34, val);
1409	break;
1410
1411	case 0x28: /* Translate from old style CD volume (L/R). */
1412	sb16ConvVolumeOldToNew(pThis, 0x36, val);
1413	break;
1414
1415	case 0x2E: /* Translate from old style line volume (L/R). */
1416	sb16ConvVolumeOldToNew(pThis, 0x38, val);
1417	break;
1418
1419	case 0x30: /* Translate to old style master volume (L). */
1420	sb16ConvVolumeL(pThis, 0x22, val);
1421	fUpdateMaster = true;
1422	break;
1423
1424	case 0x31: /* Translate to old style master volume (R). */
1425	sb16ConvVolumeR(pThis, 0x22, val);
1426	fUpdateMaster = true;
1427	break;
1428
1429	case 0x32: /* Translate to old style voice volume (L). */
1430	sb16ConvVolumeL(pThis, 0x04, val);
1431	fUpdateStream = true;
1432	break;
1433
1434	case 0x33: /* Translate to old style voice volume (R). */
1435	sb16ConvVolumeR(pThis, 0x04, val);
1436	fUpdateStream = true;
1437	break;
1438
1439	case 0x34: /* Translate to old style MIDI volume (L). */
1440	sb16ConvVolumeL(pThis, 0x26, val);
1441	break;
1442
1443	case 0x35: /* Translate to old style MIDI volume (R). */
1444	sb16ConvVolumeR(pThis, 0x26, val);
1445	break;
1446
1447	case 0x36: /* Translate to old style CD volume (L). */
1448	sb16ConvVolumeL(pThis, 0x28, val);
1449	break;
1450
1451	case 0x37: /* Translate to old style CD volume (R). */
1452	sb16ConvVolumeR(pThis, 0x28, val);
1453	break;
1454
1455	case 0x38: /* Translate to old style line volume (L). */
1456	sb16ConvVolumeL(pThis, 0x2E, val);
1457	break;
1458
1459	case 0x39: /* Translate to old style line volume (R). */
1460	sb16ConvVolumeR(pThis, 0x2E, val);
1461	break;
1462
1463	case 0x80:
1464	{
1465	int irq = irq_of_magic(val);
1466	LogFlowFunc(("setting irq to %d (val=%#x)\n", irq, val));
1467	if (irq > 0)
1468	pThis->irq = irq;
1469	break;
1470	}
1471
1472	case 0x81:
1473	{
1474	int dma, hdma;
1475
1476	dma = lsbindex (val & 0xf);
1477	hdma = lsbindex (val & 0xf0);
1478	if (dma != pThis->dma \|\| hdma != pThis->hdma)
1479	LogFlow(("SB16: attempt to change DMA 8bit %d(%d), 16bit %d(%d) (val=%#x)\n",
1480	dma, pThis->dma, hdma, pThis->hdma, val));
1481	#if 0
1482	pThis->dma = dma;
1483	pThis->hdma = hdma;
1484	#endif
1485	break;
1486	}
1487
1488	case 0x82:
1489	LogFlowFunc(("attempt to write into IRQ status register (val=%#x)\n", val));
1490	return VINF_SUCCESS;
1491
1492	default:
1493	if (pThis->mixer_nreg >= 0x80)
1494	LogFlowFunc(("attempt to write mixer[%#x] <- %#x\n", pThis->mixer_nreg, val));
1495	break;
1496	}
1497
1498	pThis->mixer_regs[pThis->mixer_nreg] = val;
1499
1500	/* Update the master (mixer) volume. */
1501	if ( fUpdateMaster
1502	\|\| fUpdateStream)
1503	{
1504	sb16UpdateVolume(pThis);
1505	}
1506
1507	return VINF_SUCCESS;
1508	}
1509
1510	/**
1511	* @callback_method_impl{PFNIOMIOPORTOUT}
1512	*/
1513	static DECLCALLBACK(int) mixer_write(PPDMDEVINS pDevIns, void *opaque, RTIOPORT nport, uint32_t val, unsigned cb)
1514	{
1515	RT_NOREF(pDevIns);
1516	PSB16STATE pThis = (PSB16STATE)opaque;
1517	int iport = nport - pThis->port;
1518	switch (cb)
1519	{
1520	case 1:
1521	switch (iport)
1522	{
1523	case 4:
1524	mixer_write_indexb(pThis, val);
1525	break;
1526	case 5:
1527	mixer_write_datab(pThis, val);
1528	break;
1529	}
1530	break;
1531	case 2:
1532	mixer_write_indexb(pThis, val & 0xff);
1533	mixer_write_datab(pThis, (val >> 8) & 0xff);
1534	break;
1535	default:
1536	AssertMsgFailed(("Port=%#x cb=%d u32=%#x\n", nport, cb, val));
1537	break;
1538	}
1539	return VINF_SUCCESS;
1540	}
1541
1542	/**
1543	* @callback_method_impl{PFNIOMIOPORTIN}
1544	*/
1545	static DECLCALLBACK(int) mixer_read(PPDMDEVINS pDevIns, void opaque, RTIOPORT nport, uint32_t pu32, unsigned cb)
1546	{
1547	RT_NOREF(pDevIns, cb, nport);
1548	PSB16STATE pThis = (PSB16STATE)opaque;
1549
1550	#ifndef DEBUG_SB16_MOST
1551	if (pThis->mixer_nreg != 0x82)
1552	LogFlowFunc(("mixer_read[%#x] -> %#x\n", pThis->mixer_nreg, pThis->mixer_regs[pThis->mixer_nreg]));
1553	#else
1554	LogFlowFunc(("mixer_read[%#x] -> %#x\n", pThis->mixer_nreg, pThis->mixer_regs[pThis->mixer_nreg]));
1555	#endif
1556	*pu32 = pThis->mixer_regs[pThis->mixer_nreg];
1557	return VINF_SUCCESS;
1558	}
1559
1560	/**
1561	* Called by sb16DMARead.
1562	*/
1563	static int sb16WriteAudio(PSB16STATE pThis, int nchan, uint32_t dma_pos, uint32_t dma_len, int len)
1564	{
1565	uint8_t tmpbuf[_4K]; /** @todo Have a buffer on the heap. */
1566	uint32_t cbToWrite = len;
1567	uint32_t cbWrittenTotal = 0;
1568
1569	while (cbToWrite)
1570	{
1571	uint32_t cbToRead = RT_MIN(dma_len - dma_pos, cbToWrite);
1572	if (cbToRead > sizeof(tmpbuf))
1573	cbToRead = sizeof(tmpbuf);
1574
1575	uint32_t cbRead = 0;
1576	int rc2 = PDMDevHlpDMAReadMemory(pThis->pDevInsR3, nchan, tmpbuf, dma_pos, cbToRead, &cbRead);
1577	AssertMsgRC(rc2, (" from DMA failed: %Rrc\n", rc2));
1578
1579	#ifdef VBOX_AUDIO_DEBUG_DUMP_PCM_DATA
1580	if (cbRead)
1581	{
1582	RTFILE fh;
1583	RTFileOpen(&fh, VBOX_AUDIO_DEBUG_DUMP_PCM_DATA_PATH "sb16WriteAudio.pcm",
1584	RTFILE_O_OPEN_CREATE \| RTFILE_O_APPEND \| RTFILE_O_WRITE \| RTFILE_O_DENY_NONE);
1585	RTFileWrite(fh, tmpbuf, cbRead, NULL);
1586	RTFileClose(fh);
1587	}
1588	#endif
1589	/*
1590	* Write data to the backends.
1591	*/
1592	uint32_t cbWritten = 0;
1593
1594	/* Just multiplex the output to the connected backends.
1595	* No need to utilize the virtual mixer here (yet). */
1596	PSB16DRIVER pDrv;
1597	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
1598	{
1599	if (!pDrv->Out.pStream)
1600	continue;
1601
1602	uint32_t cbWrittenToStream = 0;
1603	rc2 = pDrv->pConnector->pfnStreamWrite(pDrv->pConnector, pDrv->Out.pStream, tmpbuf, cbRead, &cbWrittenToStream);
1604
1605	LogFlowFunc(("\tLUN#%RU8: rc=%Rrc, cbWrittenToStream=%RU32\n", pDrv->uLUN, rc2, cbWrittenToStream));
1606
1607	/* The primary driver sets the overall pace. */
1608	if (pDrv->fFlags & PDMAUDIODRVFLAGS_PRIMARY)
1609	{
1610	cbWritten = cbWrittenToStream;
1611
1612	if (RT_FAILURE(rc2))
1613	break;
1614	}
1615	}
1616
1617	LogFlowFunc(("\tcbToRead=%RU32, cbToWrite=%RU32, cbWritten=%RU32, cbLeft=%RU32\n",
1618	cbToRead, cbToWrite, cbWritten, cbToWrite - cbWrittenTotal));
1619
1620	Assert(cbToWrite >= cbWritten);
1621	cbToWrite -= cbWritten;
1622	dma_pos = (dma_pos + cbWritten) % dma_len;
1623	cbWrittenTotal += cbWritten;
1624
1625	if (!cbWritten)
1626	break;
1627	}
1628
1629	return cbWrittenTotal;
1630	}
1631
1632	/**
1633	* @callback_method_impl{FNDMATRANSFERHANDLER,
1634	* Worker callback for both DMA channels.}
1635	*/
1636	static DECLCALLBACK(uint32_t) sb16DMARead(PPDMDEVINS pDevIns, void *opaque, unsigned nchan, uint32_t dma_pos, uint32_t dma_len)
1637	{
1638	RT_NOREF(pDevIns);
1639	PSB16STATE pThis = (PSB16STATE)opaque;
1640	int till, copy, written, free;
1641
1642	if (pThis->block_size <= 0)
1643	{
1644	LogFlowFunc(("invalid block size=%d nchan=%d dma_pos=%d dma_len=%d\n",
1645	pThis->block_size, nchan, dma_pos, dma_len));
1646	return dma_pos;
1647	}
1648
1649	if (pThis->left_till_irq < 0)
1650	pThis->left_till_irq = pThis->block_size;
1651
1652	uint32_t cbOutMin = UINT32_MAX;
1653
1654	PSB16DRIVER pDrv;
1655	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
1656	{
1657	if (!pDrv->Out.pStream)
1658	continue;
1659
1660	uint32_t cbOut = pDrv->pConnector->pfnStreamGetWritable(pDrv->pConnector, pDrv->Out.pStream);
1661
1662	if (cbOut < cbOutMin)
1663	cbOutMin = cbOut;
1664	}
1665
1666	LogFlowFunc(("cbOutMin=%RU32\n", cbOutMin));
1667	if (cbOutMin == UINT32_MAX)
1668	{
1669	free = dma_len;
1670	}
1671	else
1672	{
1673	free = cbOutMin & ~pThis->align; /** @todo int vs. uint32. */
1674	if ((free <= 0) \|\| !dma_len)
1675	return dma_pos;
1676	}
1677
1678	copy = free;
1679	till = pThis->left_till_irq;
1680
1681	#ifdef DEBUG_SB16_MOST
1682	LogFlowFunc(("pos:%06d %d till:%d len:%d\n", dma_pos, free, till, dma_len));
1683	#endif
1684
1685	if (copy >= till)
1686	{
1687	if (0 == pThis->dma_auto)
1688	{
1689	copy = till;
1690	}
1691	else
1692	{
1693	if (copy >= till + pThis->block_size)
1694	copy = till; /* Make sure we won't skip IRQs. */
1695	}
1696	}
1697
1698	written = sb16WriteAudio(pThis, nchan, dma_pos, dma_len, copy);
1699	dma_pos = (dma_pos + written) % dma_len;
1700	pThis->left_till_irq -= written;
1701
1702	if (pThis->left_till_irq <= 0)
1703	{
1704	pThis->mixer_regs[0x82] \|= (nchan & 4) ? 2 : 1;
1705	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 1);
1706	if (0 == pThis->dma_auto)
1707	{
1708	sb16Control(pThis, 0);
1709	sb16SpeakerControl(pThis, 0);
1710	}
1711	}
1712
1713	Log3Func(("pos %d/%d free %5d till %5d copy %5d written %5d block_size %5d\n",
1714	dma_pos, dma_len, free, pThis->left_till_irq, copy, written,
1715	pThis->block_size));
1716
1717	while (pThis->left_till_irq <= 0)
1718	pThis->left_till_irq += pThis->block_size;
1719
1720	return dma_pos;
1721	}
1722
1723	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
1724
1725	static void sb16TimerMaybeStart(PSB16STATE pThis)
1726	{
1727	LogFlowFunc(("cStreamsActive=%RU8\n", pThis->cStreamsActive));
1728
1729	if (pThis->cStreamsActive == 0) /* Only start the timer if there are no active streams. */
1730	return;
1731
1732	if (!pThis->pTimerIO)
1733	return;
1734
1735	/* Set timer flag. */
1736	ASMAtomicXchgBool(&pThis->fTimerActive, true);
1737
1738	/* Update current time timestamp. */
1739	pThis->uTimerTSIO = TMTimerGet(pThis->pTimerIO);
1740
1741	/* Fire off timer. */
1742	TMTimerSet(pThis->pTimerIO, TMTimerGet(pThis->pTimerIO) + pThis->cTimerTicksIO);
1743	}
1744
1745	static void sb16TimerMaybeStop(PSB16STATE pThis)
1746	{
1747	LogFlowFunc(("cStreamsActive=%RU8\n", pThis->cStreamsActive));
1748
1749	if (pThis->cStreamsActive) /* Some streams still active? Bail out. */
1750	return;
1751
1752	if (!pThis->pTimerIO)
1753	return;
1754
1755	/* Set timer flag. */
1756	ASMAtomicXchgBool(&pThis->fTimerActive, false);
1757	}
1758
1759	/**
1760	* @callback_method_impl{FNTMTIMERDEV}
1761	*/
1762	static DECLCALLBACK(void) sb16TimerIO(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
1763	{
1764	RT_NOREF(pDevIns);
1765	PSB16STATE pThis = (PSB16STATE)pvUser;
1766	Assert(pThis == PDMINS_2_DATA(pDevIns, PSB16STATE));
1767	AssertPtr(pThis);
1768
1769	uint64_t cTicksNow = TMTimerGet(pTimer);
1770	bool fIsPlaying = false; /* Whether one or more streams are still playing. */
1771	bool fDoTransfer = false;
1772
1773	pThis->uTimerTSIO = cTicksNow;
1774
1775	PSB16DRIVER pDrv;
1776	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
1777	{
1778	PPDMAUDIOSTREAM pStream = pDrv->Out.pStream;
1779	if (!pStream)
1780	continue;
1781
1782	# ifdef VBOX_STRICT
1783	/*
1784	* Sanity. Make sure that all streams have the same configuration
1785	* to get SB16's DMA transfers right.
1786	*
1787	* SB16 only allows one output configuration per serial data out,
1788	* so check if all streams have the same configuration.
1789	*/
1790	PSB16DRIVER pDrvPrev = RTListNodeGetPrev(&pDrv->Node, SB16DRIVER, Node);
1791	if ( pDrvPrev
1792	&& !RTListNodeIsDummy(&pThis->lstDrv, pDrvPrev, SB16DRIVER, Node))
1793	{
1794	PPDMAUDIOSTREAM pStreamPrev = pDrvPrev->Out.pStream;
1795	if (pStreamPrev)
1796	{
1797	AssertMsg(pStream->Cfg.Props.uHz == pStreamPrev->Cfg.Props.uHz,
1798	("%RU32Hz vs. %RU32Hz\n", pStream->Cfg.Props.uHz, pStreamPrev->Cfg.Props.uHz));
1799	AssertMsg(pStream->Cfg.Props.cChannels == pStreamPrev->Cfg.Props.cChannels,
1800	("%RU8 vs. %RU8 channels\n", pStream->Cfg.Props.cChannels, pStreamPrev->Cfg.Props.cChannels));
1801	AssertMsg(pStream->Cfg.Props.cBits == pStreamPrev->Cfg.Props.cBits,
1802	("%d vs. %d bits\n", pStream->Cfg.Props.cBits, pStreamPrev->Cfg.Props.cBits));
1803	AssertMsg(pStream->Cfg.Props.fSigned == pStreamPrev->Cfg.Props.fSigned,
1804	("%RTbool vs. %RTbool signed\n", pStream->Cfg.Props.fSigned, pStreamPrev->Cfg.Props.fSigned));
1805	}
1806	}
1807	# endif
1808	PPDMIAUDIOCONNECTOR pConn = pDrv->pConnector;
1809	if (!pConn)
1810	continue;
1811
1812	int rc2 = pConn->pfnStreamIterate(pConn, pStream);
1813	if (RT_SUCCESS(rc2))
1814	{
1815	if (pStream->enmDir == PDMAUDIODIR_IN)
1816	{
1817	/** @todo Implement recording! */
1818	}
1819	else
1820	{
1821	rc2 = pConn->pfnStreamPlay(pConn, pStream, NULL /* cPlayed */);
1822	if (RT_FAILURE(rc2))
1823	{
1824	LogFlowFunc(("%s: Failed playing stream, rc=%Rrc\n", pStream->szName, rc2));
1825	continue;
1826	}
1827	}
1828
1829	if (pDrv->fFlags & PDMAUDIODRVFLAGS_PRIMARY)
1830	{
1831	/* Only do the next DMA transfer if we're able to write the remaining data block. */
1832	fDoTransfer = pConn->pfnStreamGetWritable(pConn, pStream) > (unsigned)pThis->left_till_irq;
1833	}
1834	}
1835
1836	PDMAUDIOSTREAMSTS strmSts = pConn->pfnStreamGetStatus(pConn, pStream);
1837	fIsPlaying \|= ( (strmSts & PDMAUDIOSTREAMSTS_FLAG_ENABLED)
1838	\|\| (strmSts & PDMAUDIOSTREAMSTS_FLAG_PENDING_DISABLE));
1839	}
1840
1841	bool fTimerActive = ASMAtomicReadBool(&pThis->fTimerActive);
1842	bool fKickTimer = fTimerActive \|\| fIsPlaying;
1843
1844	LogFlowFunc(("fTimerActive=%RTbool, fIsPlaying=%RTbool\n", fTimerActive, fIsPlaying));
1845
1846	if (fDoTransfer)
1847	{
1848	/* Schedule the next transfer. */
1849	PDMDevHlpDMASchedule(pThis->pDevInsR3);
1850
1851	/* Kick the timer at least one more time. */
1852	fKickTimer = true;
1853	}
1854
1855	/*
1856	* Recording.
1857	*/
1858	/** @todo Implement recording. */
1859
1860	if (fKickTimer)
1861	{
1862	/* Kick the timer again. */
1863	uint64_t cTicks = pThis->cTimerTicksIO;
1864	/** @todo adjust cTicks down by now much cbOutMin represents. */
1865	TMTimerSet(pThis->pTimerIO, cTicksNow + cTicks);
1866	}
1867	}
1868
1869	#endif /* !VBOX_WITH_AUDIO_SB16_CALLBACKS */
1870
1871
1872	/**
1873	* @callback_method_impl{FNSSMDEVLIVEEXEC}
1874	*/
1875	static DECLCALLBACK(int) sb16LiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass)
1876	{
1877	RT_NOREF(uPass);
1878	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
1879
1880	SSMR3PutS32(pSSM, pThis->irqCfg);
1881	SSMR3PutS32(pSSM, pThis->dmaCfg);
1882	SSMR3PutS32(pSSM, pThis->hdmaCfg);
1883	SSMR3PutS32(pSSM, pThis->portCfg);
1884	SSMR3PutS32(pSSM, pThis->verCfg);
1885	return VINF_SSM_DONT_CALL_AGAIN;
1886	}
1887
1888	/**
1889	* Worker for sb16SaveExec.
1890	*/
1891	static int sb16Save(PSSMHANDLE pSSM, PSB16STATE pThis)
1892	{
1893	SSMR3PutS32(pSSM, pThis->irq);
1894	SSMR3PutS32(pSSM, pThis->dma);
1895	SSMR3PutS32(pSSM, pThis->hdma);
1896	SSMR3PutS32(pSSM, pThis->port);
1897	SSMR3PutS32(pSSM, pThis->ver);
1898	SSMR3PutS32(pSSM, pThis->in_index);
1899	SSMR3PutS32(pSSM, pThis->out_data_len);
1900	SSMR3PutS32(pSSM, pThis->fmt_stereo);
1901	SSMR3PutS32(pSSM, pThis->fmt_signed);
1902	SSMR3PutS32(pSSM, pThis->fmt_bits);
1903
1904	SSMR3PutU32(pSSM, pThis->fmt);
1905
1906	SSMR3PutS32(pSSM, pThis->dma_auto);
1907	SSMR3PutS32(pSSM, pThis->block_size);
1908	SSMR3PutS32(pSSM, pThis->fifo);
1909	SSMR3PutS32(pSSM, pThis->freq);
1910	SSMR3PutS32(pSSM, pThis->time_const);
1911	SSMR3PutS32(pSSM, pThis->speaker);
1912	SSMR3PutS32(pSSM, pThis->needed_bytes);
1913	SSMR3PutS32(pSSM, pThis->cmd);
1914	SSMR3PutS32(pSSM, pThis->use_hdma);
1915	SSMR3PutS32(pSSM, pThis->highspeed);
1916	SSMR3PutS32(pSSM, pThis->can_write);
1917	SSMR3PutS32(pSSM, pThis->v2x6);
1918
1919	SSMR3PutU8 (pSSM, pThis->csp_param);
1920	SSMR3PutU8 (pSSM, pThis->csp_value);
1921	SSMR3PutU8 (pSSM, pThis->csp_mode);
1922	SSMR3PutU8 (pSSM, pThis->csp_param); /* Bug compatible! */
1923	SSMR3PutMem(pSSM, pThis->csp_regs, 256);
1924	SSMR3PutU8 (pSSM, pThis->csp_index);
1925	SSMR3PutMem(pSSM, pThis->csp_reg83, 4);
1926	SSMR3PutS32(pSSM, pThis->csp_reg83r);
1927	SSMR3PutS32(pSSM, pThis->csp_reg83w);
1928
1929	SSMR3PutMem(pSSM, pThis->in2_data, sizeof(pThis->in2_data));
1930	SSMR3PutMem(pSSM, pThis->out_data, sizeof(pThis->out_data));
1931	SSMR3PutU8 (pSSM, pThis->test_reg);
1932	SSMR3PutU8 (pSSM, pThis->last_read_byte);
1933
1934	SSMR3PutS32(pSSM, pThis->nzero);
1935	SSMR3PutS32(pSSM, pThis->left_till_irq);
1936	SSMR3PutS32(pSSM, pThis->dma_running);
1937	SSMR3PutS32(pSSM, pThis->bytes_per_second);
1938	SSMR3PutS32(pSSM, pThis->align);
1939
1940	SSMR3PutS32(pSSM, pThis->mixer_nreg);
1941	return SSMR3PutMem(pSSM, pThis->mixer_regs, 256);
1942	}
1943
1944	/**
1945	* @callback_method_impl{FNSSMDEVSAVEEXEC}
1946	*/
1947	static DECLCALLBACK(int) sb16SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1948	{
1949	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
1950
1951	sb16LiveExec(pDevIns, pSSM, 0);
1952	return sb16Save(pSSM, pThis);
1953	}
1954
1955	/**
1956	* Worker for sb16LoadExec.
1957	*/
1958	static int sb16Load(PSSMHANDLE pSSM, PSB16STATE pThis)
1959	{
1960	SSMR3GetS32(pSSM, &pThis->irq);
1961	SSMR3GetS32(pSSM, &pThis->dma);
1962	SSMR3GetS32(pSSM, &pThis->hdma);
1963	SSMR3GetS32(pSSM, &pThis->port);
1964	SSMR3GetS32(pSSM, &pThis->ver);
1965	SSMR3GetS32(pSSM, &pThis->in_index);
1966	SSMR3GetS32(pSSM, &pThis->out_data_len);
1967	SSMR3GetS32(pSSM, &pThis->fmt_stereo);
1968	SSMR3GetS32(pSSM, &pThis->fmt_signed);
1969	SSMR3GetS32(pSSM, &pThis->fmt_bits);
1970
1971	SSMR3GetU32(pSSM, (uint32_t *)&pThis->fmt);
1972
1973	SSMR3GetS32(pSSM, &pThis->dma_auto);
1974	SSMR3GetS32(pSSM, &pThis->block_size);
1975	SSMR3GetS32(pSSM, &pThis->fifo);
1976	SSMR3GetS32(pSSM, &pThis->freq);
1977	SSMR3GetS32(pSSM, &pThis->time_const);
1978	SSMR3GetS32(pSSM, &pThis->speaker);
1979	SSMR3GetS32(pSSM, &pThis->needed_bytes);
1980	SSMR3GetS32(pSSM, &pThis->cmd);
1981	SSMR3GetS32(pSSM, &pThis->use_hdma);
1982	SSMR3GetS32(pSSM, &pThis->highspeed);
1983	SSMR3GetS32(pSSM, &pThis->can_write);
1984	SSMR3GetS32(pSSM, &pThis->v2x6);
1985
1986	SSMR3GetU8 (pSSM, &pThis->csp_param);
1987	SSMR3GetU8 (pSSM, &pThis->csp_value);
1988	SSMR3GetU8 (pSSM, &pThis->csp_mode);
1989	SSMR3GetU8 (pSSM, &pThis->csp_param); /* Bug compatible! */
1990	SSMR3GetMem(pSSM, pThis->csp_regs, 256);
1991	SSMR3GetU8 (pSSM, &pThis->csp_index);
1992	SSMR3GetMem(pSSM, pThis->csp_reg83, 4);
1993	SSMR3GetS32(pSSM, &pThis->csp_reg83r);
1994	SSMR3GetS32(pSSM, &pThis->csp_reg83w);
1995
1996	SSMR3GetMem(pSSM, pThis->in2_data, sizeof(pThis->in2_data));
1997	SSMR3GetMem(pSSM, pThis->out_data, sizeof(pThis->out_data));
1998	SSMR3GetU8 (pSSM, &pThis->test_reg);
1999	SSMR3GetU8 (pSSM, &pThis->last_read_byte);
2000
2001	SSMR3GetS32(pSSM, &pThis->nzero);
2002	SSMR3GetS32(pSSM, &pThis->left_till_irq);
2003	SSMR3GetS32(pSSM, &pThis->dma_running);
2004	SSMR3GetS32(pSSM, &pThis->bytes_per_second);
2005	SSMR3GetS32(pSSM, &pThis->align);
2006
2007	int32_t mixer_nreg = 0;
2008	int rc = SSMR3GetS32(pSSM, &mixer_nreg);
2009	AssertRCReturn(rc, rc);
2010	pThis->mixer_nreg = (uint8_t)mixer_nreg;
2011	rc = SSMR3GetMem(pSSM, pThis->mixer_regs, 256);
2012	AssertRCReturn(rc, rc);
2013
2014	#if 0
2015	PSB16DRIVER pDrv;
2016	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2017	{
2018	if (pDrv->Out.pStream)
2019	{
2020	pDrv->pConnector->pfnCloseOut(pThis->pDrv, pDrv->Out.pStream);
2021	pDrv->Out.pStream = NULL;
2022	}
2023	}
2024	#endif
2025
2026	if (pThis->dma_running)
2027	{
2028	if (pThis->freq)
2029	{
2030	/* At the moment we only have one stream, the output stream. */
2031	PPDMAUDIOSTREAMCFG pCfg = &pThis->Out.Cfg;
2032
2033	pCfg->enmDir = PDMAUDIODIR_OUT;
2034	pCfg->DestSource.Dest = PDMAUDIOPLAYBACKDEST_FRONT;
2035	pCfg->enmLayout = PDMAUDIOSTREAMLAYOUT_NON_INTERLEAVED;
2036
2037	pCfg->Props.uHz = pThis->freq;
2038	pCfg->Props.cChannels = 1 << pThis->fmt_stereo;
2039	pCfg->Props.cBits = pThis->fmt_bits;
2040	pCfg->Props.fSigned = RT_BOOL(pThis->fmt_signed);
2041	pCfg->Props.cShift = PDMAUDIOPCMPROPS_MAKE_SHIFT_PARMS(pCfg->Props.cBits, pCfg->Props.cChannels);
2042
2043	strcpy(pCfg->szName, "Output");
2044
2045	sb16CloseOut(pThis);
2046
2047	rc = sb16OpenOut(pThis, pCfg);
2048	AssertRC(rc);
2049	}
2050
2051	sb16Control(pThis, 1);
2052	sb16SpeakerControl(pThis, pThis->speaker);
2053	}
2054
2055	/* Update the master (mixer) and PCM out volumes. */
2056	sb16UpdateVolume(pThis);
2057
2058	return VINF_SUCCESS;
2059	}
2060
2061	/**
2062	* @callback_method_impl{FNSSMDEVLOADEXEC}
2063	*/
2064	static DECLCALLBACK(int) sb16LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
2065	{
2066	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2067
2068	AssertMsgReturn( uVersion == SB16_SAVE_STATE_VERSION
2069	\|\| uVersion == SB16_SAVE_STATE_VERSION_VBOX_30,
2070	("%u\n", uVersion),
2071	VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION);
2072	if (uVersion > SB16_SAVE_STATE_VERSION_VBOX_30)
2073	{
2074	int32_t irq;
2075	SSMR3GetS32 (pSSM, &irq);
2076	int32_t dma;
2077	SSMR3GetS32 (pSSM, &dma);
2078	int32_t hdma;
2079	SSMR3GetS32 (pSSM, &hdma);
2080	int32_t port;
2081	SSMR3GetS32 (pSSM, &port);
2082	int32_t ver;
2083	int rc = SSMR3GetS32 (pSSM, &ver);
2084	AssertRCReturn (rc, rc);
2085
2086	if ( irq != pThis->irqCfg
2087	\|\| dma != pThis->dmaCfg
2088	\|\| hdma != pThis->hdmaCfg
2089	\|\| port != pThis->portCfg
2090	\|\| ver != pThis->verCfg)
2091	{
2092	return SSMR3SetCfgError(pSSM, RT_SRC_POS,
2093	N_("config changed: irq=%x/%x dma=%x/%x hdma=%x/%x port=%x/%x ver=%x/%x (saved/config)"),
2094	irq, pThis->irqCfg,
2095	dma, pThis->dmaCfg,
2096	hdma, pThis->hdmaCfg,
2097	port, pThis->portCfg,
2098	ver, pThis->verCfg);
2099	}
2100	}
2101
2102	if (uPass != SSM_PASS_FINAL)
2103	return VINF_SUCCESS;
2104
2105	return sb16Load(pSSM, pThis);
2106	}
2107
2108	/**
2109	* Creates a PDM audio stream for a specific driver.
2110	*
2111	* @returns IPRT status code.
2112	* @param pThis SB16 state.
2113	* @param pCfg Stream configuration to use.
2114	* @param pDrv Driver stream to create PDM stream for.
2115	*/
2116	static int sb16CreateDrvStream(PSB16STATE pThis, PPDMAUDIOSTREAMCFG pCfg, PSB16DRIVER pDrv)
2117	{
2118	RT_NOREF(pThis);
2119
2120	AssertReturn(pCfg->enmDir == PDMAUDIODIR_OUT, VERR_INVALID_PARAMETER);
2121	Assert(DrvAudioHlpStreamCfgIsValid(pCfg));
2122
2123	PPDMAUDIOSTREAMCFG pCfgHost = DrvAudioHlpStreamCfgDup(pCfg);
2124	if (!pCfgHost)
2125	return VERR_NO_MEMORY;
2126
2127	LogFunc(("[LUN#%RU8] %s\n", pDrv->uLUN, pCfgHost->szName));
2128
2129	AssertMsg(pDrv->Out.pStream == NULL, ("[LUN#%RU8] Driver stream already present when it must not\n", pDrv->uLUN));
2130
2131	int rc = pDrv->pConnector->pfnStreamCreate(pDrv->pConnector, pCfgHost, pCfg /* pCfgGuest */, &pDrv->Out.pStream);
2132	if (RT_SUCCESS(rc))
2133	{
2134	pDrv->pConnector->pfnStreamRetain(pDrv->pConnector, pDrv->Out.pStream);
2135	LogFlowFunc(("LUN#%RU8: Created output \"%s\", rc=%Rrc\n", pDrv->uLUN, pCfg->szName, rc));
2136	}
2137
2138	RTMemFree(pCfgHost);
2139	return rc;
2140	}
2141
2142	/**
2143	* Destroys a PDM audio stream of a specific driver.
2144	*
2145	* @param pThis SB16 state.
2146	* @param pDrv Driver stream to destroy PDM stream for.
2147	*/
2148	static void sb16DestroyDrvStream(PSB16STATE pThis, PSB16DRIVER pDrv)
2149	{
2150	AssertPtrReturnVoid(pThis);
2151	AssertPtrReturnVoid(pDrv);
2152
2153	if (pDrv->Out.pStream)
2154	{
2155	pDrv->pConnector->pfnStreamRelease(pDrv->pConnector, pDrv->Out.pStream);
2156
2157	int rc2 = pDrv->pConnector->pfnStreamControl(pDrv->pConnector, pDrv->Out.pStream, PDMAUDIOSTREAMCMD_DISABLE);
2158	AssertRC(rc2);
2159
2160	rc2 = pDrv->pConnector->pfnStreamDestroy(pDrv->pConnector, pDrv->Out.pStream);
2161	AssertRC(rc2);
2162
2163	pDrv->Out.pStream = NULL;
2164	}
2165	}
2166
2167	static int sb16OpenOut(PSB16STATE pThis, PPDMAUDIOSTREAMCFG pCfg)
2168	{
2169	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
2170	AssertPtrReturn(pCfg, VERR_INVALID_POINTER);
2171
2172	LogFlowFuncEnter();
2173
2174	if (!DrvAudioHlpStreamCfgIsValid(pCfg))
2175	return VERR_INVALID_PARAMETER;
2176
2177	int rc = VINF_SUCCESS;
2178
2179	PSB16DRIVER pDrv;
2180	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2181	{
2182	int rc2 = sb16CreateDrvStream(pThis, pCfg, pDrv);
2183	if (RT_FAILURE(rc2))
2184	LogFunc(("Attaching stream failed with %Rrc\n", rc2));
2185
2186	/* Do not pass failure to rc here, as there might be drivers which aren't
2187	* configured / ready yet. */
2188	}
2189
2190	sb16UpdateVolume(pThis);
2191
2192	LogFlowFuncLeaveRC(rc);
2193	return rc;
2194	}
2195
2196	static void sb16CloseOut(PSB16STATE pThis)
2197	{
2198	AssertPtrReturnVoid(pThis);
2199
2200	LogFlowFuncEnter();
2201
2202	PSB16DRIVER pDrv;
2203	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2204	sb16DestroyDrvStream(pThis, pDrv);
2205
2206	LogFlowFuncLeave();
2207	}
2208
2209
2210	/**
2211	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
2212	*/
2213	static DECLCALLBACK(void ) sb16QueryInterface(struct PDMIBASE pInterface, const char *pszIID)
2214	{
2215	PSB16STATE pThis = RT_FROM_MEMBER(pInterface, SB16STATE, IBase);
2216	Assert(&pThis->IBase == pInterface);
2217
2218	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->IBase);
2219	return NULL;
2220	}
2221
2222
2223	/**
2224	* Attach command, internal version.
2225	*
2226	* This is called to let the device attach to a driver for a specified LUN
2227	* during runtime. This is not called during VM construction, the device
2228	* constructor has to attach to all the available drivers.
2229	*
2230	* @returns VBox status code.
2231	* @param pThis SB16 state.
2232	* @param uLUN The logical unit which is being detached.
2233	* @param fFlags Flags, combination of the PDMDEVATT_FLAGS_* \#defines.
2234	* @param ppDrv Attached driver instance on success. Optional.
2235	*/
2236	static int sb16AttachInternal(PSB16STATE pThis, unsigned uLUN, uint32_t fFlags, PSB16DRIVER *ppDrv)
2237	{
2238	RT_NOREF(fFlags);
2239
2240	/*
2241	* Attach driver.
2242	*/
2243	char *pszDesc;
2244	if (RTStrAPrintf(&pszDesc, "Audio driver port (SB16) for LUN #%u", uLUN) <= 0)
2245	AssertLogRelFailedReturn(VERR_NO_MEMORY);
2246
2247	PPDMIBASE pDrvBase;
2248	int rc = PDMDevHlpDriverAttach(pThis->pDevInsR3, uLUN,
2249	&pThis->IBase, &pDrvBase, pszDesc);
2250	if (RT_SUCCESS(rc))
2251	{
2252	PSB16DRIVER pDrv = (PSB16DRIVER)RTMemAllocZ(sizeof(SB16DRIVER));
2253	if (pDrv)
2254	{
2255	pDrv->pDrvBase = pDrvBase;
2256	pDrv->pConnector = PDMIBASE_QUERY_INTERFACE(pDrvBase, PDMIAUDIOCONNECTOR);
2257	AssertMsg(pDrv->pConnector != NULL, ("Configuration error: LUN #%u has no host audio interface, rc=%Rrc\n", uLUN, rc));
2258	pDrv->pSB16State = pThis;
2259	pDrv->uLUN = uLUN;
2260
2261	/*
2262	* For now we always set the driver at LUN 0 as our primary
2263	* host backend. This might change in the future.
2264	*/
2265	if (pDrv->uLUN == 0)
2266	pDrv->fFlags \|= PDMAUDIODRVFLAGS_PRIMARY;
2267
2268	LogFunc(("LUN#%RU8: pCon=%p, drvFlags=0x%x\n", uLUN, pDrv->pConnector, pDrv->fFlags));
2269
2270	/* Attach to driver list if not attached yet. */
2271	if (!pDrv->fAttached)
2272	{
2273	RTListAppend(&pThis->lstDrv, &pDrv->Node);
2274	pDrv->fAttached = true;
2275	}
2276
2277	if (ppDrv)
2278	*ppDrv = pDrv;
2279	}
2280	else
2281	rc = VERR_NO_MEMORY;
2282	}
2283	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
2284	LogFunc(("No attached driver for LUN #%u\n", uLUN));
2285
2286	if (RT_FAILURE(rc))
2287	{
2288	/* Only free this string on failure;
2289	* must remain valid for the live of the driver instance. */
2290	RTStrFree(pszDesc);
2291	}
2292
2293	LogFunc(("iLUN=%u, fFlags=0x%x, rc=%Rrc\n", uLUN, fFlags, rc));
2294	return rc;
2295	}
2296
2297	/**
2298	* Detach command, internal version.
2299	*
2300	* This is called to let the device detach from a driver for a specified LUN
2301	* during runtime.
2302	*
2303	* @returns VBox status code.
2304	* @param pThis SB16 state.
2305	* @param pDrv Driver to detach device from.
2306	* @param fFlags Flags, combination of the PDMDEVATT_FLAGS_* \#defines.
2307	*/
2308	static int sb16DetachInternal(PSB16STATE pThis, PSB16DRIVER pDrv, uint32_t fFlags)
2309	{
2310	RT_NOREF(fFlags);
2311
2312	sb16DestroyDrvStream(pThis, pDrv);
2313
2314	RTListNodeRemove(&pDrv->Node);
2315
2316	LogFunc(("uLUN=%u, fFlags=0x%x\n", pDrv->uLUN, fFlags));
2317	return VINF_SUCCESS;
2318	}
2319
2320	/**
2321	* @interface_method_impl{PDMDEVREG,pfnAttach}
2322	*/
2323	static DECLCALLBACK(int) sb16Attach(PPDMDEVINS pDevIns, unsigned uLUN, uint32_t fFlags)
2324	{
2325	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2326
2327	LogFunc(("uLUN=%u, fFlags=0x%x\n", uLUN, fFlags));
2328
2329	PSB16DRIVER pDrv;
2330	int rc2 = sb16AttachInternal(pThis, uLUN, fFlags, &pDrv);
2331	if (RT_SUCCESS(rc2))
2332	rc2 = sb16CreateDrvStream(pThis, &pThis->Out.Cfg, pDrv);
2333
2334	return VINF_SUCCESS;
2335	}
2336
2337	/**
2338	* @interface_method_impl{PDMDEVREG,pfnDetach}
2339	*/
2340	static DECLCALLBACK(void) sb16Detach(PPDMDEVINS pDevIns, unsigned uLUN, uint32_t fFlags)
2341	{
2342	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2343
2344	LogFunc(("uLUN=%u, fFlags=0x%x\n", uLUN, fFlags));
2345
2346	PSB16DRIVER pDrv, pDrvNext;
2347	RTListForEachSafe(&pThis->lstDrv, pDrv, pDrvNext, SB16DRIVER, Node)
2348	{
2349	if (pDrv->uLUN == uLUN)
2350	{
2351	int rc2 = sb16DetachInternal(pThis, pDrv, fFlags);
2352	if (RT_SUCCESS(rc2))
2353	{
2354	RTMemFree(pDrv);
2355	pDrv = NULL;
2356	}
2357
2358	break;
2359	}
2360	}
2361	}
2362
2363	/**
2364	* Re-attaches (replaces) a driver with a new driver.
2365	*
2366	* @returns VBox status code.
2367	* @param pThis Device instance.
2368	* @param pDrv Driver instance used for attaching to.
2369	* If NULL is specified, a new driver will be created and appended
2370	* to the driver list.
2371	* @param uLUN The logical unit which is being re-detached.
2372	* @param pszDriver New driver name to attach.
2373	*/
2374	static int sb16Reattach(PSB16STATE pThis, PSB16DRIVER pDrv, uint8_t uLUN, const char *pszDriver)
2375	{
2376	AssertPtrReturn(pThis, VERR_INVALID_POINTER);
2377	AssertPtrReturn(pszDriver, VERR_INVALID_POINTER);
2378
2379	int rc;
2380
2381	if (pDrv)
2382	{
2383	rc = sb16DetachInternal(pThis, pDrv, 0 /* fFlags */);
2384	if (RT_SUCCESS(rc))
2385	rc = PDMDevHlpDriverDetach(pThis->pDevInsR3, PDMIBASE_2_PDMDRV(pDrv->pDrvBase), 0 /* fFlags */);
2386
2387	if (RT_FAILURE(rc))
2388	return rc;
2389
2390	pDrv = NULL;
2391	}
2392
2393	PVM pVM = PDMDevHlpGetVM(pThis->pDevInsR3);
2394	PCFGMNODE pRoot = CFGMR3GetRoot(pVM);
2395	PCFGMNODE pDev0 = CFGMR3GetChild(pRoot, "Devices/sb16/0/");
2396
2397	/* Remove LUN branch. */
2398	CFGMR3RemoveNode(CFGMR3GetChildF(pDev0, "LUN#%u/", uLUN));
2399
2400	if (pDrv)
2401	{
2402	/* Re-use the driver instance so detach it before. */
2403	rc = PDMDevHlpDriverDetach(pThis->pDevInsR3, PDMIBASE_2_PDMDRV(pDrv->pDrvBase), 0 /* fFlags */);
2404	if (RT_FAILURE(rc))
2405	return rc;
2406	}
2407
2408	#define RC_CHECK() if (RT_FAILURE(rc)) { AssertReleaseRC(rc); break; }
2409
2410	do
2411	{
2412	PCFGMNODE pLunL0;
2413	rc = CFGMR3InsertNodeF(pDev0, &pLunL0, "LUN#%u/", uLUN); RC_CHECK();
2414	rc = CFGMR3InsertString(pLunL0, "Driver", "AUDIO"); RC_CHECK();
2415	rc = CFGMR3InsertNode(pLunL0, "Config/", NULL); RC_CHECK();
2416
2417	PCFGMNODE pLunL1, pLunL2;
2418	rc = CFGMR3InsertNode (pLunL0, "AttachedDriver/", &pLunL1); RC_CHECK();
2419	rc = CFGMR3InsertNode (pLunL1, "Config/", &pLunL2); RC_CHECK();
2420	rc = CFGMR3InsertString(pLunL1, "Driver", pszDriver); RC_CHECK();
2421
2422	rc = CFGMR3InsertString(pLunL2, "AudioDriver", pszDriver); RC_CHECK();
2423
2424	} while (0);
2425
2426	if (RT_SUCCESS(rc))
2427	rc = sb16AttachInternal(pThis, uLUN, 0 /* fFlags /, NULL / ppDrv */);
2428
2429	LogFunc(("pThis=%p, uLUN=%u, pszDriver=%s, rc=%Rrc\n", pThis, uLUN, pszDriver, rc));
2430
2431	#undef RC_CHECK
2432
2433	return rc;
2434	}
2435
2436	/**
2437	* @interface_method_impl{PDMDEVREG,pfnReset}
2438	*/
2439	static DECLCALLBACK(void) sb16DevReset(PPDMDEVINS pDevIns)
2440	{
2441	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2442
2443	/* Bring back the device to initial state, and especially make
2444	* sure there's no interrupt or DMA activity.
2445	*/
2446	PDMDevHlpISASetIrq(pThis->pDevInsR3, pThis->irq, 0);
2447
2448	pThis->mixer_regs[0x82] = 0;
2449	pThis->csp_regs[5] = 1;
2450	pThis->csp_regs[9] = 0xf8;
2451
2452	pThis->dma_auto = 0;
2453	pThis->in_index = 0;
2454	pThis->out_data_len = 0;
2455	pThis->left_till_irq = 0;
2456	pThis->needed_bytes = 0;
2457	pThis->block_size = -1;
2458	pThis->nzero = 0;
2459	pThis->highspeed = 0;
2460	pThis->v2x6 = 0;
2461	pThis->cmd = -1;
2462
2463	sb16MixerReset(pThis);
2464	sb16SpeakerControl(pThis, 0);
2465	sb16Control(pThis, 0);
2466	sb16CmdResetLegacy(pThis);
2467	}
2468
2469	/**
2470	* Powers off the device.
2471	*
2472	* @param pDevIns Device instance to power off.
2473	*/
2474	static DECLCALLBACK(void) sb16PowerOff(PPDMDEVINS pDevIns)
2475	{
2476	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2477
2478	LogRel2(("SB16: Powering off ...\n"));
2479
2480	PSB16DRIVER pDrv;
2481	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2482	sb16DestroyDrvStream(pThis, pDrv);
2483	}
2484
2485	/**
2486	* @interface_method_impl{PDMDEVREG,pfnDestruct}
2487	*/
2488	static DECLCALLBACK(int) sb16Destruct(PPDMDEVINS pDevIns)
2489	{
2490	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns); /* this shall come first */
2491	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2492
2493	LogFlowFuncEnter();
2494
2495	PSB16DRIVER pDrv;
2496	while (!RTListIsEmpty(&pThis->lstDrv))
2497	{
2498	pDrv = RTListGetFirst(&pThis->lstDrv, SB16DRIVER, Node);
2499
2500	RTListNodeRemove(&pDrv->Node);
2501	RTMemFree(pDrv);
2502	}
2503
2504	return VINF_SUCCESS;
2505	}
2506
2507	static DECLCALLBACK(int) sb16Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
2508	{
2509	RT_NOREF(iInstance);
2510	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns); /* this shall come first */
2511	PSB16STATE pThis = PDMINS_2_DATA(pDevIns, PSB16STATE);
2512
2513	/*
2514	* Initialize the data so sb16Destruct runs without a hitch if we return early.
2515	*/
2516	pThis->pDevInsR3 = pDevIns;
2517	pThis->IBase.pfnQueryInterface = sb16QueryInterface;
2518	pThis->cmd = -1;
2519
2520	pThis->csp_regs[5] = 1;
2521	pThis->csp_regs[9] = 0xf8;
2522
2523	RTListInit(&pThis->lstDrv);
2524
2525	/*
2526	* Validations.
2527	*/
2528	Assert(iInstance == 0);
2529	if (!CFGMR3AreValuesValid(pCfg,
2530	"IRQ\0"
2531	"DMA\0"
2532	"DMA16\0"
2533	"Port\0"
2534	"Version\0"
2535	"TimerHz\0"))
2536	return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
2537	N_("Invalid configuration for SB16 device"));
2538
2539	/*
2540	* Read config data.
2541	*/
2542	int rc = CFGMR3QuerySIntDef(pCfg, "IRQ", &pThis->irq, 5);
2543	if (RT_FAILURE(rc))
2544	return PDMDEV_SET_ERROR(pDevIns, rc,
2545	N_("SB16 configuration error: Failed to get the \"IRQ\" value"));
2546	pThis->irqCfg = pThis->irq;
2547
2548	rc = CFGMR3QuerySIntDef(pCfg, "DMA", &pThis->dma, 1);
2549	if (RT_FAILURE(rc))
2550	return PDMDEV_SET_ERROR(pDevIns, rc,
2551	N_("SB16 configuration error: Failed to get the \"DMA\" value"));
2552	pThis->dmaCfg = pThis->dma;
2553
2554	rc = CFGMR3QuerySIntDef(pCfg, "DMA16", &pThis->hdma, 5);
2555	if (RT_FAILURE(rc))
2556	return PDMDEV_SET_ERROR(pDevIns, rc,
2557	N_("SB16 configuration error: Failed to get the \"DMA16\" value"));
2558	pThis->hdmaCfg = pThis->hdma;
2559
2560	RTIOPORT Port;
2561	rc = CFGMR3QueryPortDef(pCfg, "Port", &Port, 0x220);
2562	if (RT_FAILURE(rc))
2563	return PDMDEV_SET_ERROR(pDevIns, rc,
2564	N_("SB16 configuration error: Failed to get the \"Port\" value"));
2565	pThis->port = Port;
2566	pThis->portCfg = Port;
2567
2568	uint16_t u16Version;
2569	rc = CFGMR3QueryU16Def(pCfg, "Version", &u16Version, 0x0405);
2570	if (RT_FAILURE(rc))
2571	return PDMDEV_SET_ERROR(pDevIns, rc,
2572	N_("SB16 configuration error: Failed to get the \"Version\" value"));
2573	pThis->ver = u16Version;
2574	pThis->verCfg = u16Version;
2575
2576	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
2577	uint16_t uTimerHz;
2578	rc = CFGMR3QueryU16Def(pCfg, "TimerHz", &uTimerHz, 100 /* Hz */);
2579	if (RT_FAILURE(rc))
2580	return PDMDEV_SET_ERROR(pDevIns, rc,
2581	N_("SB16 configuration error: failed to read Hertz (Hz) rate as unsigned integer"));
2582	#endif
2583
2584	/*
2585	* Setup the mixer now that we've got the irq and dma channel numbers.
2586	*/
2587	pThis->mixer_regs[0x80] = magic_of_irq(pThis->irq);
2588	pThis->mixer_regs[0x81] = (1 << pThis->dma) \| (1 << pThis->hdma);
2589	pThis->mixer_regs[0x82] = 2 << 5;
2590
2591	sb16MixerReset(pThis);
2592
2593	/*
2594	* Create timer(s), register & attach stuff.
2595	*/
2596	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, sb16TimerIRQ, pThis,
2597	TMTIMER_FLAGS_DEFAULT_CRIT_SECT, "SB16 IRQ timer", &pThis->pTimerIRQ);
2598	if (RT_FAILURE(rc))
2599	AssertMsgFailedReturn(("Error creating IRQ timer, rc=%Rrc\n", rc), rc);
2600
2601	rc = PDMDevHlpIOPortRegister(pDevIns, pThis->port + 0x04, 2, pThis, mixer_write, mixer_read, NULL, NULL, "SB16");
2602	if (RT_FAILURE(rc))
2603	return rc;
2604	rc = PDMDevHlpIOPortRegister(pDevIns, pThis->port + 0x06, 10, pThis, dsp_write, dsp_read, NULL, NULL, "SB16");
2605	if (RT_FAILURE(rc))
2606	return rc;
2607
2608	rc = PDMDevHlpDMARegister(pDevIns, pThis->hdma, sb16DMARead, pThis);
2609	if (RT_FAILURE(rc))
2610	return rc;
2611	rc = PDMDevHlpDMARegister(pDevIns, pThis->dma, sb16DMARead, pThis);
2612	if (RT_FAILURE(rc))
2613	return rc;
2614
2615	pThis->can_write = 1;
2616
2617	rc = PDMDevHlpSSMRegister3(pDevIns, SB16_SAVE_STATE_VERSION, sizeof(SB16STATE), sb16LiveExec, sb16SaveExec, sb16LoadExec);
2618	if (RT_FAILURE(rc))
2619	return rc;
2620
2621	/*
2622	* Attach driver.
2623	*/
2624	uint8_t uLUN;
2625	for (uLUN = 0; uLUN < UINT8_MAX; ++uLUN)
2626	{
2627	LogFunc(("Trying to attach driver for LUN #%RU8 ...\n", uLUN));
2628	rc = sb16AttachInternal(pThis, uLUN, 0 /* fFlags /, NULL / ppDrv */);
2629	if (RT_FAILURE(rc))
2630	{
2631	if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
2632	rc = VINF_SUCCESS;
2633	else if (rc == VERR_AUDIO_BACKEND_INIT_FAILED)
2634	{
2635	sb16Reattach(pThis, NULL /* pDrv */, uLUN, "NullAudio");
2636	PDMDevHlpVMSetRuntimeError(pDevIns, 0 /fFlags/, "HostAudioNotResponding",
2637	N_("Host audio backend initialization has failed. Selecting the NULL audio backend "
2638	"with the consequence that no sound is audible"));
2639	/* Attaching to the NULL audio backend will never fail. */
2640	rc = VINF_SUCCESS;
2641	}
2642	break;
2643	}
2644	}
2645
2646	LogFunc(("cLUNs=%RU8, rc=%Rrc\n", uLUN, rc));
2647
2648	sb16CmdResetLegacy(pThis);
2649
2650	#ifdef VBOX_WITH_AUDIO_SB16_ONETIME_INIT
2651	PSB16DRIVER pDrv;
2652	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2653	{
2654	/*
2655	* Only primary drivers are critical for the VM to run. Everything else
2656	* might not worth showing an own error message box in the GUI.
2657	*/
2658	if (!(pDrv->fFlags & PDMAUDIODRVFLAGS_PRIMARY))
2659	continue;
2660
2661	PPDMIAUDIOCONNECTOR pCon = pDrv->pConnector;
2662	AssertPtr(pCon);
2663
2664	/** @todo No input streams available for SB16 yet. */
2665
2666	if (!pDrv->Out.pStream)
2667	continue;
2668
2669	bool fValidOut = pCon->pfnStreamGetStatus(pCon, pDrv->Out.pStream) & PDMAUDIOSTREAMSTS_FLAG_INITIALIZED;
2670	if (!fValidOut)
2671	{
2672	LogRel(("SB16: Falling back to NULL backend (no sound audible)\n"));
2673
2674	sb16CmdResetLegacy(pThis);
2675	sb16Reattach(pThis, pDrv, pDrv->uLUN, "NullAudio");
2676
2677	PDMDevHlpVMSetRuntimeError(pDevIns, 0 /fFlags/, "HostAudioNotResponding",
2678	N_("No audio devices could be opened. Selecting the NULL audio backend "
2679	"with the consequence that no sound is audible"));
2680	}
2681	}
2682	#endif
2683
2684	#ifndef VBOX_WITH_AUDIO_SB16_CALLBACKS
2685	if (RT_SUCCESS(rc))
2686	{
2687	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, sb16TimerIO, pThis,
2688	TMTIMER_FLAGS_DEFAULT_CRIT_SECT, "SB16 IO timer", &pThis->pTimerIO);
2689	if (RT_SUCCESS(rc))
2690	{
2691	pThis->cTimerTicksIO = TMTimerGetFreq(pThis->pTimerIO) / uTimerHz;
2692	pThis->uTimerTSIO = TMTimerGet(pThis->pTimerIO);
2693	LogFunc(("Timer ticks=%RU64 (%RU16 Hz)\n", pThis->cTimerTicksIO, uTimerHz));
2694	}
2695	else
2696	AssertMsgFailedReturn(("Error creating I/O timer, rc=%Rrc\n", rc), rc);
2697	}
2698	#else /* !VBOX_WITH_AUDIO_SB16_CALLBACKS */
2699	if (RT_SUCCESS(rc))
2700	{
2701	/** @todo Merge this callback registration with the validation block above once
2702	* this becomes the standard. */
2703	PSB16DRIVER pDrv;
2704	RTListForEach(&pThis->lstDrv, pDrv, SB16DRIVER, Node)
2705	{
2706	/* Only register primary driver.
2707	* The device emulation does the output multiplexing then. */
2708	if (pDrv->fFlags != PDMAUDIODRVFLAGS_PRIMARY)
2709	continue;
2710
2711	PDMAUDIOCBRECORD AudioCallbacks[2];
2712
2713	SB16CALLBACKCTX Ctx = { pThis, pDrv };
2714
2715	AudioCallbacks[0].enmType = PDMAUDIOCALLBACKTYPE_INPUT;
2716	AudioCallbacks[0].pfnCallback = sb16CallbackInput;
2717	AudioCallbacks[0].pvCtx = &Ctx;
2718	AudioCallbacks[0].cbCtx = sizeof(SB16CALLBACKCTX);
2719
2720	AudioCallbacks[1].enmType = PDMAUDIOCALLBACKTYPE_OUTPUT;
2721	AudioCallbacks[1].pfnCallback = sb16CallbackOutput;
2722	AudioCallbacks[1].pvCtx = &Ctx;
2723	AudioCallbacks[1].cbCtx = sizeof(SB16CALLBACKCTX);
2724
2725	rc = pDrv->pConnector->pfnRegisterCallbacks(pDrv->pConnector, AudioCallbacks, RT_ELEMENTS(AudioCallbacks));
2726	if (RT_FAILURE(rc))
2727	break;
2728	}
2729	}
2730	#endif /* VBOX_WITH_AUDIO_SB16_CALLBACKS */
2731
2732	#ifdef VBOX_AUDIO_DEBUG_DUMP_PCM_DATA
2733	RTFileDelete(VBOX_AUDIO_DEBUG_DUMP_PCM_DATA_PATH "sb16WriteAudio.pcm");
2734	#endif
2735
2736	return VINF_SUCCESS;
2737	}
2738
2739	const PDMDEVREG g_DeviceSB16 =
2740	{
2741	/* u32Version */
2742	PDM_DEVREG_VERSION,
2743	/* szName */
2744	"sb16",
2745	/* szRCMod */
2746	"",
2747	/* szR0Mod */
2748	"",
2749	/* pszDescription */
2750	"Sound Blaster 16 Controller",
2751	/* fFlags */
2752	PDM_DEVREG_FLAGS_DEFAULT_BITS,
2753	/* fClass */
2754	PDM_DEVREG_CLASS_AUDIO,
2755	/* cMaxInstances */
2756	1,
2757	/* cbInstance */
2758	sizeof(SB16STATE),
2759	/* pfnConstruct */
2760	sb16Construct,
2761	/* pfnDestruct */
2762	sb16Destruct,
2763	/* pfnRelocate */
2764	NULL,
2765	/* pfnMemSetup */
2766	NULL,
2767	/* pfnPowerOn */
2768	NULL,
2769	/* pfnReset */
2770	sb16DevReset,
2771	/* pfnSuspend */
2772	NULL,
2773	/* pfnResume */
2774	NULL,
2775	/* pfnAttach */
2776	sb16Attach,
2777	/* pfnDetach */
2778	sb16Detach,
2779	/* pfnQueryInterface */
2780	NULL,
2781	/* pfnInitComplete */
2782	NULL,
2783	/* pfnPowerOff */
2784	sb16PowerOff,
2785	/* pfnSoftReset */
2786	NULL,
2787	/* u32VersionEnd */
2788	PDM_DEVREG_VERSION
2789	};
2790

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Devices/Audio/DevSB16.cpp@ 71766

Download in other formats: