1 | /* $Id: DrvHostValidationKit.cpp 70493 2018-01-09 12:24:31Z vboxsync $ */
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2 | /** @file
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3 | * ValidationKit audio driver - host backend for dumping and injecting audio data
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4 | * from/to the device emulation.
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5 | */
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6 |
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7 | /*
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8 | * Copyright (C) 2016-2017 Oracle Corporation
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9 | *
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10 | * This file is part of VirtualBox Open Source Edition (OSE), as
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11 | * available from http://www.virtualbox.org. This file is free software;
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12 | * you can redistribute it and/or modify it under the terms of the GNU
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13 | * General Public License (GPL) as published by the Free Software
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14 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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15 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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16 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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17 | */
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18 |
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19 | #include <iprt/alloc.h>
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20 | #include <iprt/uuid.h> /* For PDMIBASE_2_PDMDRV. */
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21 |
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22 | #define LOG_GROUP LOG_GROUP_DRV_HOST_AUDIO
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23 | #include <VBox/log.h>
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24 | #include <VBox/vmm/pdmaudioifs.h>
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25 |
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26 | #include "DrvAudio.h"
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27 | #include "VBoxDD.h"
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28 |
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29 |
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30 | /**
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31 | * Structure for keeping a VAKIT input/output stream.
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32 | */
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33 | typedef struct VAKITAUDIOSTREAM
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34 | {
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35 | /** The stream's acquired configuration. */
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36 | PPDMAUDIOSTREAMCFG pCfg;
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37 | /** Audio file to dump output to or read input from. */
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38 | PPDMAUDIOFILE pFile;
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39 | /** Text file to store timing of audio buffers submittions**/
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40 | RTFILE hFileTiming;
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41 | /** Timestamp of the first play or record request**/
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42 | uint64_t tsStarted;
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43 | /** Total number of samples played or recorded so far**/
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44 | uint32_t uSamplesSinceStarted;
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45 | union
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46 | {
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47 | struct
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48 | {
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49 | /** Timestamp of last captured samples. */
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50 | uint64_t tsLastCaptured;
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51 | } In;
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52 | struct
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53 | {
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54 | /** Timestamp of last played samples. */
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55 | uint64_t tsLastPlayed;
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56 | uint8_t *pu8PlayBuffer;
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57 | uint32_t cbPlayBuffer;
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58 | } Out;
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59 | };
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60 | } VAKITAUDIOSTREAM, *PVAKITAUDIOSTREAM;
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61 |
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62 | /**
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63 | * VAKIT audio driver instance data.
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64 | * @implements PDMIAUDIOCONNECTOR
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65 | */
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66 | typedef struct DRVHOSTVAKITAUDIO
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67 | {
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68 | /** Pointer to the driver instance structure. */
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69 | PPDMDRVINS pDrvIns;
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70 | /** Pointer to host audio interface. */
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71 | PDMIHOSTAUDIO IHostAudio;
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72 | } DRVHOSTVAKITAUDIO, *PDRVHOSTVAKITAUDIO;
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73 |
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74 | /*******************************************PDM_AUDIO_DRIVER******************************/
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75 |
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76 |
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77 | /**
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78 | * @interface_method_impl{PDMIHOSTAUDIO,pfnGetConfig}
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79 | */
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80 | static DECLCALLBACK(int) drvHostVaKitAudioGetConfig(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDCFG pBackendCfg)
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81 | {
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82 | RT_NOREF(pInterface);
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83 | AssertPtrReturn(pBackendCfg, VERR_INVALID_POINTER);
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84 |
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85 | pBackendCfg->cbStreamOut = sizeof(VAKITAUDIOSTREAM);
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86 | pBackendCfg->cbStreamIn = sizeof(VAKITAUDIOSTREAM);
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87 |
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88 | pBackendCfg->cMaxStreamsOut = 1; /* Output */
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89 | pBackendCfg->cMaxStreamsIn = 2; /* Line input + microphone input. */
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90 |
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91 | return VINF_SUCCESS;
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92 | }
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93 |
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94 |
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95 | /**
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96 | * @interface_method_impl{PDMIHOSTAUDIO,pfnInit}
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97 | */
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98 | static DECLCALLBACK(int) drvHostVaKitAudioInit(PPDMIHOSTAUDIO pInterface)
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99 | {
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100 | RT_NOREF(pInterface);
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101 |
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102 | LogFlowFuncLeaveRC(VINF_SUCCESS);
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103 | return VINF_SUCCESS;
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104 | }
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105 |
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106 |
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107 | /**
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108 | * @interface_method_impl{PDMIHOSTAUDIO,pfnShutdown}
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109 | */
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110 | static DECLCALLBACK(void) drvHostVaKitAudioShutdown(PPDMIHOSTAUDIO pInterface)
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111 | {
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112 | RT_NOREF(pInterface);
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113 | }
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114 |
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115 |
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116 | /**
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117 | * @interface_method_impl{PDMIHOSTAUDIO,pfnGetStatus}
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118 | */
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119 | static DECLCALLBACK(PDMAUDIOBACKENDSTS) drvHostVaKitAudioGetStatus(PPDMIHOSTAUDIO pInterface, PDMAUDIODIR enmDir)
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120 | {
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121 | RT_NOREF(enmDir);
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122 | AssertPtrReturn(pInterface, PDMAUDIOBACKENDSTS_UNKNOWN);
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123 |
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124 | return PDMAUDIOBACKENDSTS_RUNNING;
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125 | }
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126 |
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127 |
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128 | static int debugCreateStreamIn(PDRVHOSTVAKITAUDIO pDrv, PVAKITAUDIOSTREAM pStreamDbg,
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129 | PPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAMCFG pCfgAcq)
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130 | {
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131 | RT_NOREF(pDrv, pStreamDbg, pCfgReq);
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132 |
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133 | if (pCfgAcq)
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134 | pCfgAcq->cFrameBufferHint = _1K;
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135 |
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136 | return VINF_SUCCESS;
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137 | }
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138 |
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139 |
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140 | static int debugCreateStreamOut(PDRVHOSTVAKITAUDIO pDrv, PVAKITAUDIOSTREAM pStreamDbg,
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141 | PPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAMCFG pCfgAcq)
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142 | {
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143 | RT_NOREF(pDrv);
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144 |
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145 | int rc = VINF_SUCCESS;
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146 |
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147 | pStreamDbg->tsStarted = 0;
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148 | pStreamDbg->uSamplesSinceStarted = 0;
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149 | pStreamDbg->Out.tsLastPlayed = 0;
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150 | pStreamDbg->Out.cbPlayBuffer = 16 * _1K * PDMAUDIOSTREAMCFG_F2B(pCfgReq, 1); /** @todo Make this configurable? */
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151 | pStreamDbg->Out.pu8PlayBuffer = (uint8_t *)RTMemAlloc(pStreamDbg->Out.cbPlayBuffer);
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152 | if (!pStreamDbg->Out.pu8PlayBuffer)
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153 | rc = VERR_NO_MEMORY;
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154 |
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155 | if (RT_SUCCESS(rc))
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156 | {
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157 | char szTemp[RTPATH_MAX];
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158 | rc = RTPathTemp(szTemp, sizeof(szTemp));
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159 |
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160 | RTPathAppend(szTemp, sizeof(szTemp), "VBoxTestTmp\\VBoxAudioValKit");
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161 |
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162 | if (RT_SUCCESS(rc))
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163 | {
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164 | char szFile[RTPATH_MAX + 1];
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165 |
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166 | rc = DrvAudioHlpGetFileName(szFile, RT_ELEMENTS(szFile), szTemp, "VaKit",
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167 | 0 /* Instance */, PDMAUDIOFILETYPE_WAV, PDMAUDIOFILENAME_FLAG_NONE);
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168 | if (RT_SUCCESS(rc))
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169 | {
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170 | rc = DrvAudioHlpFileCreate(PDMAUDIOFILETYPE_WAV, szFile, PDMAUDIOFILE_FLAG_NONE, &pStreamDbg->pFile);
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171 | if (RT_SUCCESS(rc))
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172 | rc = DrvAudioHlpFileOpen(pStreamDbg->pFile, PDMAUDIOFILE_DEFAULT_OPEN_FLAGS, &pCfgReq->Props);
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173 | }
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174 |
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175 | if (RT_FAILURE(rc))
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176 | {
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177 | LogRel(("VaKitAudio: Creating output file '%s' failed with %Rrc\n", szFile, rc));
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178 | }
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179 | else
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180 | {
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181 | size_t cch;
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182 | char szTimingInfo[128];
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183 | cch = RTStrPrintf(szTimingInfo, sizeof(szTimingInfo), "# %dHz %dch %dbps\n",
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184 | pCfgReq->Props.uHz, pCfgReq->Props.cChannels, pCfgReq->Props.cBits);
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185 |
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186 | RTFileWrite(pStreamDbg->hFileTiming, szTimingInfo, cch, NULL);
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187 | }
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188 | }
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189 | else
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190 | LogRel(("VaKitAudio: Unable to retrieve temp dir: %Rrc\n", rc));
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191 | }
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192 |
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193 | if (RT_SUCCESS(rc))
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194 | {
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195 | if (pCfgAcq)
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196 | pCfgAcq->cFrameBufferHint = PDMAUDIOSTREAMCFG_B2F(pCfgAcq, pStreamDbg->Out.cbPlayBuffer);
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197 | }
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198 |
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199 | return rc;
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200 | }
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201 |
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202 |
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203 | /**
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204 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamCreate}
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205 | */
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206 | static DECLCALLBACK(int) drvHostVaKitAudioStreamCreate(PPDMIHOSTAUDIO pInterface,
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207 | PPDMAUDIOBACKENDSTREAM pStream,
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208 | PPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAMCFG pCfgAcq)
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209 | {
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210 | AssertPtrReturn(pInterface, VERR_INVALID_POINTER);
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211 | AssertPtrReturn(pStream, VERR_INVALID_POINTER);
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212 | AssertPtrReturn(pCfgReq, VERR_INVALID_POINTER);
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213 | AssertPtrReturn(pCfgAcq, VERR_INVALID_POINTER);
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214 |
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215 | PDRVHOSTVAKITAUDIO pDrv = RT_FROM_MEMBER(pInterface, DRVHOSTVAKITAUDIO, IHostAudio);
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216 | PVAKITAUDIOSTREAM pStreamDbg = (PVAKITAUDIOSTREAM)pStream;
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217 |
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218 | int rc;
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219 | if (pCfgReq->enmDir == PDMAUDIODIR_IN)
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220 | rc = debugCreateStreamIn( pDrv, pStreamDbg, pCfgReq, pCfgAcq);
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221 | else
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222 | rc = debugCreateStreamOut(pDrv, pStreamDbg, pCfgReq, pCfgAcq);
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223 |
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224 | if (RT_SUCCESS(rc))
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225 | {
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226 | pStreamDbg->pCfg = DrvAudioHlpStreamCfgDup(pCfgAcq);
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227 | if (!pStreamDbg->pCfg)
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228 | rc = VERR_NO_MEMORY;
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229 | }
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230 |
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231 | return rc;
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232 | }
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233 |
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234 |
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235 | /**
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236 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamPlay}
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237 | */
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238 | static DECLCALLBACK(int) drvHostVaKitAudioStreamPlay(PPDMIHOSTAUDIO pInterface,
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239 | PPDMAUDIOBACKENDSTREAM pStream, const void *pvBuf, uint32_t cxBuf,
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240 | uint32_t *pcxWritten)
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241 | {
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242 | PDRVHOSTVAKITAUDIO pDrv = RT_FROM_MEMBER(pInterface, DRVHOSTVAKITAUDIO, IHostAudio);
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243 | PVAKITAUDIOSTREAM pStreamDbg = (PVAKITAUDIOSTREAM)pStream;
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244 | RT_NOREF(pDrv);
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245 |
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246 | uint64_t tsSinceStart;
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247 | size_t cch;
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248 | char szTimingInfo[128];
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249 |
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250 | if (pStreamDbg->tsStarted == 0)
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251 | {
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252 | pStreamDbg->tsStarted = RTTimeNanoTS();
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253 | tsSinceStart = 0;
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254 | }
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255 | else
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256 | {
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257 | tsSinceStart = RTTimeNanoTS() - pStreamDbg->tsStarted;
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258 | }
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259 |
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260 | // Microseconds are used everythere below
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261 | uint32_t sBuf = cxBuf >> pStreamDbg->pCfg->Props.cShift;
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262 | cch = RTStrPrintf(szTimingInfo, sizeof(szTimingInfo), "%d %d %d %d\n",
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263 | (uint32_t)(tsSinceStart / 1000), // Host time elapsed since Guest submitted the first buffer for playback
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264 | (uint32_t)(pStreamDbg->uSamplesSinceStarted * 1.0E6 / pStreamDbg->pCfg->Props.uHz), // how long all the samples submitted previously were played
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265 | (uint32_t)(sBuf * 1.0E6 / pStreamDbg->pCfg->Props.uHz), // how long a new uSamplesReady samples should\will be played
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266 | sBuf);
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267 | RTFileWrite(pStreamDbg->hFileTiming, szTimingInfo, cch, NULL);
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268 | pStreamDbg->uSamplesSinceStarted += sBuf;
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269 |
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270 | /* Remember when samples were consumed. */
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271 | // pStreamDbg->Out.tsLastPlayed = PDMDrvHlpTMGetVirtualTime(pDrv->pDrvIns);;
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272 |
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273 | int rc2 = DrvAudioHlpFileWrite(pStreamDbg->pFile, pvBuf, cxBuf, 0 /* fFlags */);
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274 | if (RT_FAILURE(rc2))
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275 | LogRel(("DebugAudio: Writing output failed with %Rrc\n", rc2));
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276 |
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277 | *pcxWritten = cxBuf;
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278 |
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279 | return VINF_SUCCESS;
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280 | }
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281 |
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282 |
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283 | /**
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284 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamCapture}
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285 | */
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286 | static DECLCALLBACK(int) drvHostVaKitAudioStreamCapture(PPDMIHOSTAUDIO pInterface,
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287 | PPDMAUDIOBACKENDSTREAM pStream, void *pvBuf, uint32_t cxBuf,
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288 | uint32_t *pcxRead)
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289 | {
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290 | RT_NOREF(pInterface, pStream, pvBuf, cxBuf);
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291 |
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292 | /* Never capture anything. */
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293 | if (pcxRead)
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294 | *pcxRead = 0;
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295 |
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296 | return VINF_SUCCESS;
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297 | }
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298 |
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299 |
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300 | static int debugDestroyStreamIn(PDRVHOSTVAKITAUDIO pDrv, PVAKITAUDIOSTREAM pStreamDbg)
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301 | {
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302 | RT_NOREF(pDrv, pStreamDbg);
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303 | return VINF_SUCCESS;
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304 | }
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305 |
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306 |
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307 | static int debugDestroyStreamOut(PDRVHOSTVAKITAUDIO pDrv, PVAKITAUDIOSTREAM pStreamDbg)
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308 | {
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309 | RT_NOREF(pDrv);
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310 |
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311 | if (pStreamDbg->Out.pu8PlayBuffer)
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312 | {
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313 | RTMemFree(pStreamDbg->Out.pu8PlayBuffer);
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314 | pStreamDbg->Out.pu8PlayBuffer = NULL;
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315 | }
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316 |
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317 | if (pStreamDbg->pFile)
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318 | {
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319 | size_t cbDataSize = DrvAudioHlpFileGetDataSize(pStreamDbg->pFile);
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320 | if (cbDataSize)
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321 | LogRel(("VaKitAudio: Created output file '%s' (%zu bytes)\n", pStreamDbg->pFile->szName, cbDataSize));
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322 |
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323 | DrvAudioHlpFileDestroy(pStreamDbg->pFile);
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324 | pStreamDbg->pFile = NULL;
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325 | }
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326 |
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327 | return VINF_SUCCESS;
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328 | }
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329 |
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330 |
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331 | static DECLCALLBACK(int) drvHostVaKitAudioStreamDestroy(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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332 | {
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333 | AssertPtrReturn(pInterface, VERR_INVALID_POINTER);
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334 |
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335 | PDRVHOSTVAKITAUDIO pDrv = RT_FROM_MEMBER(pInterface, DRVHOSTVAKITAUDIO, IHostAudio);
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336 | PVAKITAUDIOSTREAM pStreamDbg = (PVAKITAUDIOSTREAM)pStream;
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337 |
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338 | if (!pStreamDbg->pCfg) /* Not (yet) configured? Skip. */
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339 | return VINF_SUCCESS;
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340 |
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341 | int rc;
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342 | if (pStreamDbg->pCfg->enmDir == PDMAUDIODIR_IN)
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343 | rc = debugDestroyStreamIn (pDrv, pStreamDbg);
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344 | else
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345 | rc = debugDestroyStreamOut(pDrv, pStreamDbg);
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346 |
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347 | if (RT_SUCCESS(rc))
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348 | {
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349 | DrvAudioHlpStreamCfgFree(pStreamDbg->pCfg);
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350 | pStreamDbg->pCfg = NULL;
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351 | }
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352 |
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353 | return rc;
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354 | }
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355 |
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356 | static DECLCALLBACK(int) drvHostVaKitAudioStreamControl(PPDMIHOSTAUDIO pInterface,
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357 | PPDMAUDIOBACKENDSTREAM pStream, PDMAUDIOSTREAMCMD enmStreamCmd)
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358 | {
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359 | RT_NOREF(enmStreamCmd);
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360 | AssertPtrReturn(pInterface, VERR_INVALID_POINTER);
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361 | AssertPtrReturn(pStream, VERR_INVALID_POINTER);
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362 |
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363 | return VINF_SUCCESS;
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364 | }
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365 |
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366 | /**
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367 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetReadable}
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368 | */
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369 | static DECLCALLBACK(uint32_t) drvHostVaKitAudioStreamGetReadable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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370 | {
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371 | RT_NOREF(pInterface, pStream);
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372 |
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373 | return UINT32_MAX;
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374 | }
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375 |
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376 |
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377 | /**
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378 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetWritable}
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379 | */
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380 | static DECLCALLBACK(uint32_t) drvHostVaKitAudioStreamGetWritable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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381 | {
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382 | RT_NOREF(pInterface, pStream);
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383 |
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384 | return UINT32_MAX;
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385 | }
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386 |
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387 | static DECLCALLBACK(PDMAUDIOSTREAMSTS) drvHostVaKitAudioStreamGetStatus(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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388 | {
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389 | RT_NOREF(pInterface, pStream);
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390 |
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391 | return (PDMAUDIOSTREAMSTS_FLAG_INITIALIZED | PDMAUDIOSTREAMSTS_FLAG_ENABLED);
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392 | }
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393 |
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394 | static DECLCALLBACK(int) drvHostVaKitAudioStreamIterate(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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395 | {
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396 | RT_NOREF(pInterface, pStream);
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397 | return VINF_SUCCESS;
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398 | }
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399 |
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400 |
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401 | /**
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402 | * @interface_method_impl{PDMIBASE,pfnQueryInterface}
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403 | */
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404 | static DECLCALLBACK(void *) drvHostVaKitAudioQueryInterface(PPDMIBASE pInterface, const char *pszIID)
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405 | {
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406 | PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
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407 | PDRVHOSTVAKITAUDIO pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTVAKITAUDIO);
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408 |
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409 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
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410 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIHOSTAUDIO, &pThis->IHostAudio);
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411 | return NULL;
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412 | }
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413 |
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414 |
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415 | /**
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416 | * Constructs a VaKit audio driver instance.
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417 | *
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418 | * @copydoc FNPDMDRVCONSTRUCT
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419 | */
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420 | static DECLCALLBACK(int) drvHostVaKitAudioConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
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421 | {
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422 | RT_NOREF(pCfg, fFlags);
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423 | PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
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424 | PDRVHOSTVAKITAUDIO pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTVAKITAUDIO);
|
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425 | LogRel(("Audio: Initializing VAKIT driver\n"));
|
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426 |
|
---|
427 | /*
|
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428 | * Init the static parts.
|
---|
429 | */
|
---|
430 | pThis->pDrvIns = pDrvIns;
|
---|
431 | /* IBase */
|
---|
432 | pDrvIns->IBase.pfnQueryInterface = drvHostVaKitAudioQueryInterface;
|
---|
433 | /* IHostAudio */
|
---|
434 | PDMAUDIO_IHOSTAUDIO_CALLBACKS(drvHostVaKitAudio);
|
---|
435 |
|
---|
436 | return VINF_SUCCESS;
|
---|
437 | }
|
---|
438 |
|
---|
439 | /**
|
---|
440 | * Char driver registration record.
|
---|
441 | */
|
---|
442 | const PDMDRVREG g_DrvHostValidationKitAudio =
|
---|
443 | {
|
---|
444 | /* u32Version */
|
---|
445 | PDM_DRVREG_VERSION,
|
---|
446 | /* szName */
|
---|
447 | "ValidationKitAudio",
|
---|
448 | /* szRCMod */
|
---|
449 | "",
|
---|
450 | /* szR0Mod */
|
---|
451 | "",
|
---|
452 | /* pszDescription */
|
---|
453 | "ValidationKitAudio audio host driver",
|
---|
454 | /* fFlags */
|
---|
455 | PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
|
---|
456 | /* fClass. */
|
---|
457 | PDM_DRVREG_CLASS_AUDIO,
|
---|
458 | /* cMaxInstances */
|
---|
459 | ~0U,
|
---|
460 | /* cbInstance */
|
---|
461 | sizeof(DRVHOSTVAKITAUDIO),
|
---|
462 | /* pfnConstruct */
|
---|
463 | drvHostVaKitAudioConstruct,
|
---|
464 | /* pfnDestruct */
|
---|
465 | NULL,
|
---|
466 | /* pfnRelocate */
|
---|
467 | NULL,
|
---|
468 | /* pfnIOCtl */
|
---|
469 | NULL,
|
---|
470 | /* pfnPowerOn */
|
---|
471 | NULL,
|
---|
472 | /* pfnReset */
|
---|
473 | NULL,
|
---|
474 | /* pfnSuspend */
|
---|
475 | NULL,
|
---|
476 | /* pfnResume */
|
---|
477 | NULL,
|
---|
478 | /* pfnAttach */
|
---|
479 | NULL,
|
---|
480 | /* pfnDetach */
|
---|
481 | NULL,
|
---|
482 | /* pfnPowerOff */
|
---|
483 | NULL,
|
---|
484 | /* pfnSoftReset */
|
---|
485 | NULL,
|
---|
486 | /* u32EndVersion */
|
---|
487 | PDM_DRVREG_VERSION
|
---|
488 | };
|
---|
489 |
|
---|