1 | /* $Id: DrvHostDebugAudio.cpp 70013 2017-12-08 11:52:00Z vboxsync $ */
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2 | /** @file
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3 | * Debug audio driver.
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4 | *
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5 | * Host backend for dumping and injecting audio data from/to the device emulation.
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6 | */
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7 |
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8 | /*
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9 | * Copyright (C) 2016-2017 Oracle Corporation
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10 | *
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11 | * This file is part of VirtualBox Open Source Edition (OSE), as
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12 | * available from http://www.virtualbox.org. This file is free software;
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13 | * you can redistribute it and/or modify it under the terms of the GNU
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14 | * General Public License (GPL) as published by the Free Software
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15 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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16 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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17 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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18 | */
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19 |
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20 | #include <iprt/alloc.h>
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21 | #include <iprt/uuid.h> /* For PDMIBASE_2_PDMDRV. */
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22 |
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23 | #define LOG_GROUP LOG_GROUP_DRV_HOST_AUDIO
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24 | #include <VBox/log.h>
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25 | #include <VBox/vmm/pdmaudioifs.h>
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26 |
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27 | #include "DrvAudio.h"
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28 | #include "VBoxDD.h"
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29 |
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30 |
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31 | /**
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32 | * Structure for keeping a debug input/output stream.
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33 | */
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34 | typedef struct DEBUGAUDIOSTREAM
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35 | {
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36 | /** The stream's acquired configuration. */
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37 | PPDMAUDIOSTREAMCFG pCfg;
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38 | /** Audio file to dump output to or read input from. */
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39 | PPDMAUDIOFILE pFile;
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40 | union
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41 | {
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42 | struct
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43 | {
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44 | /** Timestamp of last captured samples. */
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45 | uint64_t tsLastCaptured;
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46 | } In;
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47 | struct
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48 | {
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49 | uint8_t *auPlayBuffer;
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50 | uint32_t cbPlayBuffer;
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51 | } Out;
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52 | };
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53 | } DEBUGAUDIOSTREAM, *PDEBUGAUDIOSTREAM;
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54 |
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55 | /**
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56 | * Debug audio driver instance data.
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57 | * @implements PDMIAUDIOCONNECTOR
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58 | */
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59 | typedef struct DRVHOSTDEBUGAUDIO
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60 | {
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61 | /** Pointer to the driver instance structure. */
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62 | PPDMDRVINS pDrvIns;
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63 | /** Pointer to host audio interface. */
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64 | PDMIHOSTAUDIO IHostAudio;
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65 | } DRVHOSTDEBUGAUDIO, *PDRVHOSTDEBUGAUDIO;
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66 |
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67 | /*******************************************PDM_AUDIO_DRIVER******************************/
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68 |
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69 |
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70 | /**
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71 | * @interface_method_impl{PDMIHOSTAUDIO,pfnGetConfig}
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72 | */
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73 | static DECLCALLBACK(int) drvHostDebugAudioGetConfig(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDCFG pBackendCfg)
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74 | {
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75 | RT_NOREF(pInterface);
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76 | AssertPtrReturn(pBackendCfg, VERR_INVALID_POINTER);
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77 |
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78 | pBackendCfg->cbStreamOut = sizeof(DEBUGAUDIOSTREAM);
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79 | pBackendCfg->cbStreamIn = sizeof(DEBUGAUDIOSTREAM);
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80 |
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81 | pBackendCfg->cMaxStreamsOut = 1; /* Output */
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82 | pBackendCfg->cMaxStreamsIn = 2; /* Line input + microphone input. */
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83 |
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84 | return VINF_SUCCESS;
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85 | }
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86 |
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87 |
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88 | /**
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89 | * @interface_method_impl{PDMIHOSTAUDIO,pfnInit}
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90 | */
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91 | static DECLCALLBACK(int) drvHostDebugAudioInit(PPDMIHOSTAUDIO pInterface)
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92 | {
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93 | RT_NOREF(pInterface);
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94 |
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95 | LogFlowFuncLeaveRC(VINF_SUCCESS);
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96 | return VINF_SUCCESS;
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97 | }
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98 |
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99 |
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100 | /**
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101 | * @interface_method_impl{PDMIHOSTAUDIO,pfnShutdown}
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102 | */
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103 | static DECLCALLBACK(void) drvHostDebugAudioShutdown(PPDMIHOSTAUDIO pInterface)
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104 | {
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105 | RT_NOREF(pInterface);
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106 | }
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107 |
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108 |
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109 | /**
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110 | * @interface_method_impl{PDMIHOSTAUDIO,pfnGetStatus}
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111 | */
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112 | static DECLCALLBACK(PDMAUDIOBACKENDSTS) drvHostDebugAudioGetStatus(PPDMIHOSTAUDIO pInterface, PDMAUDIODIR enmDir)
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113 | {
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114 | RT_NOREF(enmDir);
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115 | AssertPtrReturn(pInterface, PDMAUDIOBACKENDSTS_UNKNOWN);
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116 |
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117 | return PDMAUDIOBACKENDSTS_RUNNING;
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118 | }
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119 |
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120 |
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121 | static int debugCreateStreamIn(PDRVHOSTDEBUGAUDIO pDrv, PDEBUGAUDIOSTREAM pStreamDbg,
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122 | PPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAMCFG pCfgAcq)
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123 | {
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124 | RT_NOREF(pDrv, pStreamDbg, pCfgReq);
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125 |
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126 | if (pCfgAcq)
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127 | pCfgAcq->cFrameBufferHint = _1K;
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128 |
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129 | return VINF_SUCCESS;
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130 | }
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131 |
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132 |
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133 | static int debugCreateStreamOut(PDRVHOSTDEBUGAUDIO pDrv, PDEBUGAUDIOSTREAM pStreamDbg,
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134 | PPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAMCFG pCfgAcq)
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135 | {
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136 | RT_NOREF(pDrv);
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137 |
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138 | int rc = VINF_SUCCESS;
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139 |
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140 | pStreamDbg->Out.cbPlayBuffer = _1K * PDMAUDIOSTREAMCFG_F2B(pCfgReq, 1); /** @todo Make this configurable? */
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141 | pStreamDbg->Out.auPlayBuffer = (uint8_t *)RTMemAlloc(pStreamDbg->Out.cbPlayBuffer);
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142 | if (!pStreamDbg->Out.auPlayBuffer)
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143 | rc = VERR_NO_MEMORY;
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144 |
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145 | if (RT_SUCCESS(rc))
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146 | {
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147 | char szTemp[RTPATH_MAX];
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148 | rc = RTPathTemp(szTemp, sizeof(szTemp));
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149 | if (RT_SUCCESS(rc))
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150 | {
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151 | char szFile[RTPATH_MAX];
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152 | rc = DrvAudioHlpGetFileName(szFile, RT_ELEMENTS(szFile), szTemp, "DebugAudioOut",
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153 | pDrv->pDrvIns->iInstance, PDMAUDIOFILETYPE_WAV, PDMAUDIOFILENAME_FLAG_NONE);
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154 | if (RT_SUCCESS(rc))
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155 | {
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156 | rc = DrvAudioHlpFileCreate(PDMAUDIOFILETYPE_WAV, szFile, PDMAUDIOFILE_FLAG_NONE, &pStreamDbg->pFile);
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157 | if (RT_SUCCESS(rc))
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158 | {
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159 | rc = DrvAudioHlpFileOpen(pStreamDbg->pFile, RTFILE_O_WRITE | RTFILE_O_DENY_WRITE | RTFILE_O_CREATE_REPLACE,
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160 | &pCfgReq->Props);
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161 | }
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162 |
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163 | if (RT_FAILURE(rc))
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164 | LogRel(("DebugAudio: Creating output file '%s' failed with %Rrc\n", szFile, rc));
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165 | }
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166 | else
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167 | LogRel(("DebugAudio: Unable to build file name for temp dir '%s': %Rrc\n", szTemp, rc));
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168 | }
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169 | else
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170 | LogRel(("DebugAudio: Unable to retrieve temp dir: %Rrc\n", rc));
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171 | }
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172 |
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173 | if (RT_SUCCESS(rc))
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174 | {
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175 | if (pCfgAcq)
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176 | pCfgAcq->cFrameBufferHint = PDMAUDIOSTREAMCFG_B2F(pCfgAcq, pStreamDbg->Out.cbPlayBuffer);
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177 | }
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178 |
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179 | return rc;
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180 | }
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181 |
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182 |
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183 | /**
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184 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamCreate}
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185 | */
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186 | static DECLCALLBACK(int) drvHostDebugAudioStreamCreate(PPDMIHOSTAUDIO pInterface,
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187 | PPDMAUDIOBACKENDSTREAM pStream,
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188 | PPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAMCFG pCfgAcq)
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189 | {
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190 | AssertPtrReturn(pInterface, VERR_INVALID_POINTER);
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191 | AssertPtrReturn(pStream, VERR_INVALID_POINTER);
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192 | AssertPtrReturn(pCfgReq, VERR_INVALID_POINTER);
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193 | AssertPtrReturn(pCfgAcq, VERR_INVALID_POINTER);
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194 |
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195 | PDRVHOSTDEBUGAUDIO pDrv = RT_FROM_MEMBER(pInterface, DRVHOSTDEBUGAUDIO, IHostAudio);
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196 | PDEBUGAUDIOSTREAM pStreamDbg = (PDEBUGAUDIOSTREAM)pStream;
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197 |
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198 | int rc;
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199 | if (pCfgReq->enmDir == PDMAUDIODIR_IN)
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200 | rc = debugCreateStreamIn( pDrv, pStreamDbg, pCfgReq, pCfgAcq);
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201 | else
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202 | rc = debugCreateStreamOut(pDrv, pStreamDbg, pCfgReq, pCfgAcq);
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203 |
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204 | if (RT_SUCCESS(rc))
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205 | {
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206 | pStreamDbg->pCfg = DrvAudioHlpStreamCfgDup(pCfgAcq);
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207 | if (!pStreamDbg->pCfg)
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208 | rc = VERR_NO_MEMORY;
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209 | }
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210 |
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211 | return rc;
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212 | }
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213 |
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214 |
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215 | /**
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216 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamPlay}
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217 | */
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218 | static DECLCALLBACK(int) drvHostDebugAudioStreamPlay(PPDMIHOSTAUDIO pInterface,
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219 | PPDMAUDIOBACKENDSTREAM pStream, const void *pvBuf, uint32_t cxBuf,
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220 | uint32_t *pcxWritten)
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221 | {
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222 | RT_NOREF(pInterface);
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223 | PDEBUGAUDIOSTREAM pStreamDbg = (PDEBUGAUDIOSTREAM)pStream;
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224 |
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225 | uint32_t cbWrittenTotal = 0;
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226 |
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227 | uint32_t cbAvail = cxBuf;
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228 | while (cbAvail)
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229 | {
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230 | uint32_t cbChunk = RT_MIN(cbAvail, pStreamDbg->Out.cbPlayBuffer);
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231 |
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232 | memcpy(pStreamDbg->Out.auPlayBuffer, (uint8_t *)pvBuf + cbWrittenTotal, cbChunk);
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233 |
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234 | int rc2 = DrvAudioHlpFileWrite(pStreamDbg->pFile, pStreamDbg->Out.auPlayBuffer, cbChunk, 0 /* fFlags */);
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235 | if (RT_FAILURE(rc2))
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236 | {
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237 | LogRel(("DebugAudio: Writing output failed with %Rrc\n", rc2));
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238 | break;
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239 | }
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240 |
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241 | Assert(cbAvail >= cbChunk);
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242 | cbAvail -= cbChunk;
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243 |
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244 | cbWrittenTotal += cbChunk;
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245 | }
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246 |
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247 | if (pcxWritten)
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248 | *pcxWritten = cbWrittenTotal;
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249 |
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250 | return VINF_SUCCESS;
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251 | }
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252 |
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253 |
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254 | /**
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255 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamCapture}
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256 | */
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257 | static DECLCALLBACK(int) drvHostDebugAudioStreamCapture(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream,
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258 | void *pvBuf, uint32_t cxBuf, uint32_t *pcxRead)
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259 | {
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260 | RT_NOREF(pInterface, pStream, pvBuf, cxBuf);
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261 |
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262 | /* Never capture anything. */
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263 | if (pcxRead)
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264 | *pcxRead = 0;
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265 |
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266 | return VINF_SUCCESS;
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267 | }
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268 |
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269 |
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270 | static int debugDestroyStreamIn(PDRVHOSTDEBUGAUDIO pDrv, PDEBUGAUDIOSTREAM pStreamDbg)
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271 | {
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272 | RT_NOREF(pDrv, pStreamDbg);
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273 | return VINF_SUCCESS;
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274 | }
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275 |
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276 |
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277 | static int debugDestroyStreamOut(PDRVHOSTDEBUGAUDIO pDrv, PDEBUGAUDIOSTREAM pStreamDbg)
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278 | {
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279 | RT_NOREF(pDrv);
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280 |
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281 | if (pStreamDbg->Out.auPlayBuffer)
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282 | {
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283 | RTMemFree(pStreamDbg->Out.auPlayBuffer);
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284 | pStreamDbg->Out.auPlayBuffer = NULL;
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285 | }
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286 |
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287 | DrvAudioHlpFileDestroy(pStreamDbg->pFile);
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288 |
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289 | return VINF_SUCCESS;
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290 | }
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291 |
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292 |
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293 | /**
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294 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamDestroy}
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295 | */
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296 | static DECLCALLBACK(int) drvHostDebugAudioStreamDestroy(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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297 | {
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298 | AssertPtrReturn(pInterface, VERR_INVALID_POINTER);
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299 |
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300 | PDRVHOSTDEBUGAUDIO pDrv = RT_FROM_MEMBER(pInterface, DRVHOSTDEBUGAUDIO, IHostAudio);
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301 | PDEBUGAUDIOSTREAM pStreamDbg = (PDEBUGAUDIOSTREAM)pStream;
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302 |
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303 | if (!pStreamDbg->pCfg) /* Not (yet) configured? Skip. */
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304 | return VINF_SUCCESS;
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305 |
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306 | int rc;
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307 | if (pStreamDbg->pCfg->enmDir == PDMAUDIODIR_IN)
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308 | rc = debugDestroyStreamIn (pDrv, pStreamDbg);
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309 | else
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310 | rc = debugDestroyStreamOut(pDrv, pStreamDbg);
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311 |
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312 | if (RT_SUCCESS(rc))
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313 | {
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314 | DrvAudioHlpStreamCfgFree(pStreamDbg->pCfg);
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315 | pStreamDbg->pCfg = NULL;
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316 | }
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317 |
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318 | return rc;
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319 | }
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320 |
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321 |
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322 | /**
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323 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamControl}
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324 | */
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325 | static DECLCALLBACK(int) drvHostDebugAudioStreamControl(PPDMIHOSTAUDIO pInterface,
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326 | PPDMAUDIOBACKENDSTREAM pStream, PDMAUDIOSTREAMCMD enmStreamCmd)
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327 | {
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328 | RT_NOREF(enmStreamCmd);
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329 | AssertPtrReturn(pInterface, VERR_INVALID_POINTER);
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330 | AssertPtrReturn(pStream, VERR_INVALID_POINTER);
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331 |
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332 | return VINF_SUCCESS;
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333 | }
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334 |
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335 |
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336 | /**
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337 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetReadable}
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338 | */
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339 | static DECLCALLBACK(uint32_t) drvHostDebugAudioStreamGetReadable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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340 | {
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341 | RT_NOREF(pInterface, pStream);
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342 |
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343 | return 0; /* Never capture anything. */
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344 | }
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345 |
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346 |
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347 | /**
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348 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetWritable}
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349 | */
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350 | static DECLCALLBACK(uint32_t) drvHostDebugAudioStreamGetWritable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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351 | {
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352 | RT_NOREF(pInterface, pStream);
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353 |
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354 | return UINT32_MAX;
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355 | }
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356 |
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357 |
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358 | /**
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359 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetWritable}
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360 | */
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361 | static DECLCALLBACK(PDMAUDIOSTREAMSTS) drvHostDebugAudioStreamGetStatus(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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362 | {
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363 | RT_NOREF(pInterface, pStream);
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364 |
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365 | return (PDMAUDIOSTREAMSTS_FLAG_INITIALIZED | PDMAUDIOSTREAMSTS_FLAG_ENABLED);
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366 | }
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367 |
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368 |
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369 | /**
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370 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamIterate}
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371 | */
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372 | static DECLCALLBACK(int) drvHostDebugAudioStreamIterate(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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373 | {
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374 | RT_NOREF(pInterface, pStream);
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375 | return VINF_SUCCESS;
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376 | }
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377 |
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378 |
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379 | /**
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380 | * @interface_method_impl{PDMIBASE,pfnQueryInterface}
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381 | */
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382 | static DECLCALLBACK(void *) drvHostDebugAudioQueryInterface(PPDMIBASE pInterface, const char *pszIID)
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383 | {
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384 | PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
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385 | PDRVHOSTDEBUGAUDIO pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTDEBUGAUDIO);
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386 |
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387 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
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388 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIHOSTAUDIO, &pThis->IHostAudio);
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389 | return NULL;
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390 | }
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391 |
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392 |
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393 | /**
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394 | * Constructs a Null audio driver instance.
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395 | *
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396 | * @copydoc FNPDMDRVCONSTRUCT
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397 | */
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398 | static DECLCALLBACK(int) drvHostDebugAudioConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
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399 | {
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400 | RT_NOREF(pCfg, fFlags);
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401 | PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
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402 | PDRVHOSTDEBUGAUDIO pThis = PDMINS_2_DATA(pDrvIns, PDRVHOSTDEBUGAUDIO);
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403 | LogRel(("Audio: Initializing DEBUG driver\n"));
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404 |
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405 | /*
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406 | * Init the static parts.
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407 | */
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408 | pThis->pDrvIns = pDrvIns;
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409 | /* IBase */
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410 | pDrvIns->IBase.pfnQueryInterface = drvHostDebugAudioQueryInterface;
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411 | /* IHostAudio */
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412 | PDMAUDIO_IHOSTAUDIO_CALLBACKS(drvHostDebugAudio);
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413 |
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414 | #ifdef VBOX_AUDIO_DEBUG_DUMP_PCM_DATA
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415 | RTFileDelete(VBOX_AUDIO_DEBUG_DUMP_PCM_DATA_PATH "AudioDebugOutput.pcm");
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416 | #endif
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417 |
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418 | return VINF_SUCCESS;
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419 | }
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420 |
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421 | /**
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422 | * Char driver registration record.
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423 | */
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424 | const PDMDRVREG g_DrvHostDebugAudio =
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425 | {
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426 | /* u32Version */
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427 | PDM_DRVREG_VERSION,
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428 | /* szName */
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429 | "DebugAudio",
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430 | /* szRCMod */
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431 | "",
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432 | /* szR0Mod */
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433 | "",
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434 | /* pszDescription */
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435 | "Debug audio host driver",
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436 | /* fFlags */
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437 | PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
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438 | /* fClass. */
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439 | PDM_DRVREG_CLASS_AUDIO,
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440 | /* cMaxInstances */
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441 | ~0U,
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442 | /* cbInstance */
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443 | sizeof(DRVHOSTDEBUGAUDIO),
|
---|
444 | /* pfnConstruct */
|
---|
445 | drvHostDebugAudioConstruct,
|
---|
446 | /* pfnDestruct */
|
---|
447 | NULL,
|
---|
448 | /* pfnRelocate */
|
---|
449 | NULL,
|
---|
450 | /* pfnIOCtl */
|
---|
451 | NULL,
|
---|
452 | /* pfnPowerOn */
|
---|
453 | NULL,
|
---|
454 | /* pfnReset */
|
---|
455 | NULL,
|
---|
456 | /* pfnSuspend */
|
---|
457 | NULL,
|
---|
458 | /* pfnResume */
|
---|
459 | NULL,
|
---|
460 | /* pfnAttach */
|
---|
461 | NULL,
|
---|
462 | /* pfnDetach */
|
---|
463 | NULL,
|
---|
464 | /* pfnPowerOff */
|
---|
465 | NULL,
|
---|
466 | /* pfnSoftReset */
|
---|
467 | NULL,
|
---|
468 | /* u32EndVersion */
|
---|
469 | PDM_DRVREG_VERSION
|
---|
470 | };
|
---|
471 |
|
---|