| 1 | /* $Id: DevHdaStream.h 89821 2021-06-21 13:04:40Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * Intel HD Audio Controller Emulation - Streams.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2017-2020 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 | #ifndef VBOX_INCLUDED_SRC_Audio_DevHdaStream_h
|
|---|
| 19 | #define VBOX_INCLUDED_SRC_Audio_DevHdaStream_h
|
|---|
| 20 | #ifndef RT_WITHOUT_PRAGMA_ONCE
|
|---|
| 21 | # pragma once
|
|---|
| 22 | #endif
|
|---|
| 23 |
|
|---|
| 24 | #include "DevHdaCommon.h"
|
|---|
| 25 |
|
|---|
| 26 |
|
|---|
| 27 | /**
|
|---|
| 28 | * Structure containing HDA stream debug stuff, configurable at runtime.
|
|---|
| 29 | */
|
|---|
| 30 | typedef struct HDASTREAMDEBUGRT
|
|---|
| 31 | {
|
|---|
| 32 | /** Whether debugging is enabled or not. */
|
|---|
| 33 | bool fEnabled;
|
|---|
| 34 | uint8_t Padding[7];
|
|---|
| 35 | /** File for dumping stream reads / writes.
|
|---|
| 36 | * For input streams, this dumps data being written to the device FIFO,
|
|---|
| 37 | * whereas for output streams this dumps data being read from the device FIFO. */
|
|---|
| 38 | R3PTRTYPE(PAUDIOHLPFILE) pFileStream;
|
|---|
| 39 | /** File for dumping raw DMA reads / writes.
|
|---|
| 40 | * For input streams, this dumps data being written to the device DMA,
|
|---|
| 41 | * whereas for output streams this dumps data being read from the device DMA. */
|
|---|
| 42 | R3PTRTYPE(PAUDIOHLPFILE) pFileDMARaw;
|
|---|
| 43 | /** File for dumping mapped (that is, extracted) DMA reads / writes. */
|
|---|
| 44 | R3PTRTYPE(PAUDIOHLPFILE) pFileDMAMapped;
|
|---|
| 45 | } HDASTREAMDEBUGRT;
|
|---|
| 46 |
|
|---|
| 47 | /**
|
|---|
| 48 | * Structure containing HDA stream debug information.
|
|---|
| 49 | */
|
|---|
| 50 | typedef struct HDASTREAMDEBUG
|
|---|
| 51 | {
|
|---|
| 52 | /** Runtime debug info. */
|
|---|
| 53 | HDASTREAMDEBUGRT Runtime;
|
|---|
| 54 | #ifdef DEBUG
|
|---|
| 55 | /** Critical section to serialize access if needed. */
|
|---|
| 56 | RTCRITSECT CritSect;
|
|---|
| 57 | uint32_t Padding0[2];
|
|---|
| 58 | /** Number of total read accesses. */
|
|---|
| 59 | uint64_t cReadsTotal;
|
|---|
| 60 | /** Number of total DMA bytes read. */
|
|---|
| 61 | uint64_t cbReadTotal;
|
|---|
| 62 | /** Timestamp (in ns) of last read access. */
|
|---|
| 63 | uint64_t tsLastReadNs;
|
|---|
| 64 | /** Number of total write accesses. */
|
|---|
| 65 | uint64_t cWritesTotal;
|
|---|
| 66 | /** Number of total DMA bytes written. */
|
|---|
| 67 | uint64_t cbWrittenTotal;
|
|---|
| 68 | /** Number of total write accesses since last iteration (Hz). */
|
|---|
| 69 | uint64_t cWritesHz;
|
|---|
| 70 | /** Number of total DMA bytes written since last iteration (Hz). */
|
|---|
| 71 | uint64_t cbWrittenHz;
|
|---|
| 72 | /** Timestamp (in ns) of beginning a new write slot. */
|
|---|
| 73 | uint64_t tsWriteSlotBegin;
|
|---|
| 74 | /** Number of current silence samples in a (consecutive) row. */
|
|---|
| 75 | uint64_t csSilence;
|
|---|
| 76 | /** Number of silent samples in a row to consider an audio block as audio gap (silence). */
|
|---|
| 77 | uint64_t cSilenceThreshold;
|
|---|
| 78 | /** How many bytes to skip in an audio stream before detecting silence.
|
|---|
| 79 | * (useful for intros and silence at the beginning of a song). */
|
|---|
| 80 | uint64_t cbSilenceReadMin;
|
|---|
| 81 | #else
|
|---|
| 82 | uint64_t au64Alignment[2];
|
|---|
| 83 | #endif
|
|---|
| 84 | } HDASTREAMDEBUG;
|
|---|
| 85 | typedef HDASTREAMDEBUG *PHDASTREAMDEBUG;
|
|---|
| 86 |
|
|---|
| 87 | /**
|
|---|
| 88 | * Internal state of a HDA stream.
|
|---|
| 89 | */
|
|---|
| 90 | typedef struct HDASTREAMSTATE
|
|---|
| 91 | {
|
|---|
| 92 | /** Flag indicating whether this stream currently is
|
|---|
| 93 | * in reset mode and therefore not acccessible by the guest. */
|
|---|
| 94 | volatile bool fInReset;
|
|---|
| 95 | /** Flag indicating if the stream is in running state or not. */
|
|---|
| 96 | volatile bool fRunning;
|
|---|
| 97 | /** The stream's I/O timer Hz rate. */
|
|---|
| 98 | uint16_t uTimerIoHz;
|
|---|
| 99 | /** How many interrupts are pending due to
|
|---|
| 100 | * BDLE interrupt-on-completion (IOC) bits set. */
|
|---|
| 101 | uint8_t cTransferPendingInterrupts;
|
|---|
| 102 | /** Unused, padding. */
|
|---|
| 103 | uint8_t abPadding1[2];
|
|---|
| 104 | /** Input streams only: Set when we switch from feeding the guest silence and
|
|---|
| 105 | * commits to proving actual audio input bytes. */
|
|---|
| 106 | bool fInputPreBuffered;
|
|---|
| 107 | /** Input streams only: The number of bytes we need to prebuffer. */
|
|---|
| 108 | uint32_t cbInputPreBuffer;
|
|---|
| 109 | uint32_t u32Padding2;
|
|---|
| 110 | /** Timestamp (absolute, in timer ticks) of the last DMA data transfer.
|
|---|
| 111 | * @note This is used for wall clock (WALCLK) calculations. */
|
|---|
| 112 | uint64_t volatile tsTransferLast;
|
|---|
| 113 | /** Timestamp (absolute, in timer ticks) of the next DMA data transfer.
|
|---|
| 114 | * Next for determining the next scheduling window.
|
|---|
| 115 | * Can be 0 if no next transfer is scheduled. */
|
|---|
| 116 | uint64_t tsTransferNext;
|
|---|
| 117 | /** Total transfer size (in bytes) of a transfer period. */
|
|---|
| 118 | uint32_t cbTransferSize;
|
|---|
| 119 | /** The size of an average transfer. */
|
|---|
| 120 | uint32_t cbAvgTransfer;
|
|---|
| 121 | /** The stream's current configuration (matches SDnFMT). */
|
|---|
| 122 | PDMAUDIOSTREAMCFG Cfg;
|
|---|
| 123 | /** Timestamp (real time, in ns) of last DMA transfer. */
|
|---|
| 124 | uint64_t tsLastTransferNs;
|
|---|
| 125 | /** Timestamp (real time, in ns) of last stream read (to backends).
|
|---|
| 126 | * When running in async I/O mode, this differs from \a tsLastTransferNs,
|
|---|
| 127 | * because reading / processing will be done in a separate stream. */
|
|---|
| 128 | uint64_t tsLastReadNs;
|
|---|
| 129 |
|
|---|
| 130 | /** This is set to the timer clock time when the msInitialDelay period is over.
|
|---|
| 131 | * Once reached, this is set to zero to avoid unnecessary time queries. */
|
|---|
| 132 | uint64_t tsAioDelayEnd;
|
|---|
| 133 | /** The start time for the playback (on the timer clock). */
|
|---|
| 134 | uint64_t tsStart;
|
|---|
| 135 |
|
|---|
| 136 | /** @name DMA engine
|
|---|
| 137 | * @{ */
|
|---|
| 138 | /** The offset into the current BDLE. */
|
|---|
| 139 | uint32_t offCurBdle;
|
|---|
| 140 | /** LVI + 1 */
|
|---|
| 141 | uint16_t cBdles;
|
|---|
| 142 | /** The index of the current BDLE.
|
|---|
| 143 | * This is the entry which period is currently "running" on the DMA timer. */
|
|---|
| 144 | uint8_t idxCurBdle;
|
|---|
| 145 | /** The number of prologue scheduling steps.
|
|---|
| 146 | * This is used when the tail BDLEs doesn't have IOC set. */
|
|---|
| 147 | uint8_t cSchedulePrologue;
|
|---|
| 148 | /** Number of scheduling steps. */
|
|---|
| 149 | uint16_t cSchedule;
|
|---|
| 150 | /** Current scheduling step. */
|
|---|
| 151 | uint16_t idxSchedule;
|
|---|
| 152 | /** Current loop number within the current scheduling step. */
|
|---|
| 153 | uint32_t idxScheduleLoop;
|
|---|
| 154 |
|
|---|
| 155 | /** Buffer descriptors and additional timer scheduling state.
|
|---|
| 156 | * (Same as HDABDLEDESC, with more sensible naming.) */
|
|---|
| 157 | struct
|
|---|
| 158 | {
|
|---|
| 159 | /** The buffer address. */
|
|---|
| 160 | uint64_t GCPhys;
|
|---|
| 161 | /** The buffer size (guest bytes). */
|
|---|
| 162 | uint32_t cb;
|
|---|
| 163 | /** The flags (only bit 0 is defined). */
|
|---|
| 164 | uint32_t fFlags;
|
|---|
| 165 | } aBdl[256];
|
|---|
| 166 | /** Scheduling steps. */
|
|---|
| 167 | struct
|
|---|
| 168 | {
|
|---|
| 169 | /** Number of timer ticks per period.
|
|---|
| 170 | * ASSUMES that we don't need a full second and that the timer resolution
|
|---|
| 171 | * isn't much higher than nanoseconds. */
|
|---|
| 172 | uint32_t cPeriodTicks;
|
|---|
| 173 | /** The period length in host bytes. */
|
|---|
| 174 | uint32_t cbPeriod;
|
|---|
| 175 | /** Number of times to repeat the period. */
|
|---|
| 176 | uint32_t cLoops;
|
|---|
| 177 | /** The BDL index of the first entry. */
|
|---|
| 178 | uint8_t idxFirst;
|
|---|
| 179 | /** The number of BDL entries. */
|
|---|
| 180 | uint8_t cEntries;
|
|---|
| 181 | uint8_t abPadding[2];
|
|---|
| 182 | } aSchedule[512+8];
|
|---|
| 183 | /** @} */
|
|---|
| 184 | } HDASTREAMSTATE;
|
|---|
| 185 | AssertCompileSizeAlignment(HDASTREAMSTATE, 8);
|
|---|
| 186 | AssertCompileMemberAlignment(HDASTREAMSTATE, aBdl, 8);
|
|---|
| 187 | AssertCompileMemberAlignment(HDASTREAMSTATE, aBdl, 16);
|
|---|
| 188 | AssertCompileMemberAlignment(HDASTREAMSTATE, aSchedule, 16);
|
|---|
| 189 |
|
|---|
| 190 | /**
|
|---|
| 191 | * An HDA stream (SDI / SDO) - shared.
|
|---|
| 192 | *
|
|---|
| 193 | * @note This HDA stream has nothing to do with a regular audio stream handled
|
|---|
| 194 | * by the audio connector or the audio mixer. This HDA stream is a serial
|
|---|
| 195 | * data in/out stream (SDI/SDO) defined in hardware and can contain
|
|---|
| 196 | * multiple audio streams in one single SDI/SDO (interleaving streams).
|
|---|
| 197 | *
|
|---|
| 198 | * Contains only register values which do *not* change until a stream reset
|
|---|
| 199 | * occurs.
|
|---|
| 200 | */
|
|---|
| 201 | typedef struct HDASTREAM
|
|---|
| 202 | {
|
|---|
| 203 | /** Internal state of this stream. */
|
|---|
| 204 | HDASTREAMSTATE State;
|
|---|
| 205 |
|
|---|
| 206 | /** Stream descriptor number (SDn). */
|
|---|
| 207 | uint8_t u8SD;
|
|---|
| 208 | /** Current channel index.
|
|---|
| 209 | * For a stereo stream, this is u8Channel + 1. */
|
|---|
| 210 | uint8_t u8Channel;
|
|---|
| 211 | /** FIFO Watermark (checked + translated in bytes, FIFOW).
|
|---|
| 212 | * This will be update from hdaRegWriteSDFIFOW() and also copied
|
|---|
| 213 | * hdaR3StreamInit() for some reason. */
|
|---|
| 214 | uint8_t u8FIFOW;
|
|---|
| 215 |
|
|---|
| 216 | /** @name Register values at stream setup.
|
|---|
| 217 | * These will all be copied in hdaR3StreamInit().
|
|---|
| 218 | * @{ */
|
|---|
| 219 | /** FIFO Size (checked + translated in bytes, FIFOS).
|
|---|
| 220 | * This is supposedly the max number of bytes we'll be DMA'ing in one chunk
|
|---|
| 221 | * and correspondingly the LPIB & wall clock update jumps. However, we're
|
|---|
| 222 | * not at all being honest with the guest about this. */
|
|---|
| 223 | uint8_t u8FIFOS;
|
|---|
| 224 | /** Cyclic Buffer Length (SDnCBL) - Represents the size of the ring buffer. */
|
|---|
| 225 | uint32_t u32CBL;
|
|---|
| 226 | /** Last Valid Index (SDnLVI). */
|
|---|
| 227 | uint16_t u16LVI;
|
|---|
| 228 | /** Format (SDnFMT). */
|
|---|
| 229 | uint16_t u16FMT;
|
|---|
| 230 | uint8_t abPadding[4];
|
|---|
| 231 | /** DMA base address (SDnBDPU - SDnBDPL). */
|
|---|
| 232 | uint64_t u64BDLBase;
|
|---|
| 233 | /** @} */
|
|---|
| 234 |
|
|---|
| 235 | /** The timer for pumping data thru the attached LUN drivers. */
|
|---|
| 236 | TMTIMERHANDLE hTimer;
|
|---|
| 237 |
|
|---|
| 238 | /** Pad the structure size to a 64 byte alignment. */
|
|---|
| 239 | uint64_t au64Padding1[2];
|
|---|
| 240 | /** Critical section for serialize access to the stream state between the async
|
|---|
| 241 | * I/O thread and (basically) the guest. */
|
|---|
| 242 | PDMCRITSECT CritSect;
|
|---|
| 243 | } HDASTREAM;
|
|---|
| 244 | AssertCompileMemberAlignment(HDASTREAM, State.aBdl, 16);
|
|---|
| 245 | AssertCompileMemberAlignment(HDASTREAM, State.aSchedule, 16);
|
|---|
| 246 | AssertCompileSizeAlignment(HDASTREAM, 64);
|
|---|
| 247 | /** Pointer to an HDA stream (SDI / SDO). */
|
|---|
| 248 | typedef HDASTREAM *PHDASTREAM;
|
|---|
| 249 |
|
|---|
| 250 |
|
|---|
| 251 | /**
|
|---|
| 252 | * An HDA stream (SDI / SDO) - ring-3 bits.
|
|---|
| 253 | */
|
|---|
| 254 | typedef struct HDASTREAMR3
|
|---|
| 255 | {
|
|---|
| 256 | /** Stream descriptor number (SDn). */
|
|---|
| 257 | uint8_t u8SD;
|
|---|
| 258 | uint8_t abPadding[7];
|
|---|
| 259 | /** The shared state for the parent HDA device. */
|
|---|
| 260 | R3PTRTYPE(PHDASTATE) pHDAStateShared;
|
|---|
| 261 | /** The ring-3 state for the parent HDA device. */
|
|---|
| 262 | R3PTRTYPE(PHDASTATER3) pHDAStateR3;
|
|---|
| 263 | /** Pointer to HDA sink this stream is attached to. */
|
|---|
| 264 | R3PTRTYPE(PHDAMIXERSINK) pMixSink;
|
|---|
| 265 | /** Internal state of this stream. */
|
|---|
| 266 | struct
|
|---|
| 267 | {
|
|---|
| 268 | /** Circular buffer (FIFO) for holding DMA'ed data. */
|
|---|
| 269 | R3PTRTYPE(PRTCIRCBUF) pCircBuf;
|
|---|
| 270 | /** Current circular buffer read offset (for tracing & logging). */
|
|---|
| 271 | uint64_t offRead;
|
|---|
| 272 | /** Current circular buffer write offset (for tracing & logging). */
|
|---|
| 273 | uint64_t offWrite;
|
|---|
| 274 | #ifdef HDA_USE_DMA_ACCESS_HANDLER
|
|---|
| 275 | /** List of DMA handlers. */
|
|---|
| 276 | RTLISTANCHORR3 lstDMAHandlers;
|
|---|
| 277 | #endif
|
|---|
| 278 | /** The mixer sink this stream has registered AIO update callback with.
|
|---|
| 279 | * This is NULL till we register it, typically in hdaR3StreamEnable.
|
|---|
| 280 | * (The problem with following the pMixSink assignment is that hdaR3StreamReset
|
|---|
| 281 | * sets it without updating the HDA sink structure, so things get out of
|
|---|
| 282 | * wack in hdaR3MixerControl later in the initial device reset.) */
|
|---|
| 283 | PAUDMIXSINK pAioRegSink;
|
|---|
| 284 |
|
|---|
| 285 | /** Size of the DMA buffer (pCircBuf) in bytes. */
|
|---|
| 286 | uint32_t StatDmaBufSize;
|
|---|
| 287 | /** Number of used bytes in the DMA buffer (pCircBuf). */
|
|---|
| 288 | uint32_t StatDmaBufUsed;
|
|---|
| 289 | /** Counter for all under/overflows problems. */
|
|---|
| 290 | STAMCOUNTER StatDmaFlowProblems;
|
|---|
| 291 | /** Counter for unresovled under/overflows problems. */
|
|---|
| 292 | STAMCOUNTER StatDmaFlowErrors;
|
|---|
| 293 | /** Number of bytes involved in unresolved flow errors. */
|
|---|
| 294 | STAMCOUNTER StatDmaFlowErrorBytes;
|
|---|
| 295 |
|
|---|
| 296 | STAMPROFILE StatStart;
|
|---|
| 297 | STAMPROFILE StatReset;
|
|---|
| 298 | STAMPROFILE StatStop;
|
|---|
| 299 | STAMPROFILE StatUnusedPadding;
|
|---|
| 300 | } State;
|
|---|
| 301 | /** Debug bits. */
|
|---|
| 302 | HDASTREAMDEBUG Dbg;
|
|---|
| 303 | uint64_t au64Alignment[2+4];
|
|---|
| 304 | } HDASTREAMR3;
|
|---|
| 305 | AssertCompileSizeAlignment(HDASTREAMR3, 64);
|
|---|
| 306 | /** Pointer to an HDA stream (SDI / SDO). */
|
|---|
| 307 | typedef HDASTREAMR3 *PHDASTREAMR3;
|
|---|
| 308 |
|
|---|
| 309 | /** @name Stream functions (shared).
|
|---|
| 310 | * @{
|
|---|
| 311 | */
|
|---|
| 312 | void hdaStreamLock(PHDASTREAM pStreamShared);
|
|---|
| 313 | void hdaStreamUnlock(PHDASTREAM pStreamShared);
|
|---|
| 314 | /** @} */
|
|---|
| 315 |
|
|---|
| 316 | #ifdef IN_RING3
|
|---|
| 317 |
|
|---|
| 318 | /** @name Stream functions (ring-3).
|
|---|
| 319 | * @{
|
|---|
| 320 | */
|
|---|
| 321 | int hdaR3StreamConstruct(PHDASTREAM pStreamShared, PHDASTREAMR3 pStreamR3, PHDASTATE pThis,
|
|---|
| 322 | PHDASTATER3 pThisCC, uint8_t uSD);
|
|---|
| 323 | void hdaR3StreamDestroy(PHDASTREAM pStreamShared, PHDASTREAMR3 pStreamR3);
|
|---|
| 324 | int hdaR3StreamSetUp(PPDMDEVINS pDevIns, PHDASTATE pThis, PHDASTREAM pStreamShared,
|
|---|
| 325 | PHDASTREAMR3 pStreamR3, uint8_t uSD);
|
|---|
| 326 | void hdaR3StreamReset(PHDASTATE pThis, PHDASTATER3 pThisCC,
|
|---|
| 327 | PHDASTREAM pStreamShared, PHDASTREAMR3 pStreamR3, uint8_t uSD);
|
|---|
| 328 | int hdaR3StreamEnable(PHDASTATE pThis, PHDASTREAM pStreamShared, PHDASTREAMR3 pStreamR3, bool fEnable);
|
|---|
| 329 | void hdaR3StreamMarkStarted(PPDMDEVINS pDevIns, PHDASTATE pThis, PHDASTREAM pStreamShared, uint64_t tsNow);
|
|---|
| 330 | void hdaR3StreamMarkStopped(PHDASTREAM pStreamShared);
|
|---|
| 331 |
|
|---|
| 332 | uint64_t hdaR3StreamTimerMain(PPDMDEVINS pDevIns, PHDASTATE pThis, PHDASTATER3 pThisCC,
|
|---|
| 333 | PHDASTREAM pStreamShared, PHDASTREAMR3 pStreamR3);
|
|---|
| 334 | DECLCALLBACK(void) hdaR3StreamUpdateAsyncIoJob(PPDMDEVINS pDevIns, PAUDMIXSINK pSink, void *pvUser);
|
|---|
| 335 | # ifdef HDA_USE_DMA_ACCESS_HANDLER
|
|---|
| 336 | bool hdaR3StreamRegisterDMAHandlers(PHDASTREAM pStream);
|
|---|
| 337 | void hdaR3StreamUnregisterDMAHandlers(PHDASTREAM pStream);
|
|---|
| 338 | # endif
|
|---|
| 339 | /** @} */
|
|---|
| 340 |
|
|---|
| 341 | #endif /* IN_RING3 */
|
|---|
| 342 | #endif /* !VBOX_INCLUDED_SRC_Audio_DevHdaStream_h */
|
|---|
| 343 |
|
|---|
