| 1 | /* $Id: AudioDriver.h 96407 2022-08-22 17:43:14Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * VirtualBox audio base class for Main audio drivers.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2018-2022 Oracle and/or its affiliates.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox base platform packages, as
|
|---|
| 10 | * available from https://www.virtualbox.org.
|
|---|
| 11 | *
|
|---|
| 12 | * This program is free software; you can redistribute it and/or
|
|---|
| 13 | * modify it under the terms of the GNU General Public License
|
|---|
| 14 | * as published by the Free Software Foundation, in version 3 of the
|
|---|
| 15 | * License.
|
|---|
| 16 | *
|
|---|
| 17 | * This program is distributed in the hope that it will be useful, but
|
|---|
| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 20 | * General Public License for more details.
|
|---|
| 21 | *
|
|---|
| 22 | * You should have received a copy of the GNU General Public License
|
|---|
| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
|---|
| 24 | *
|
|---|
| 25 | * SPDX-License-Identifier: GPL-3.0-only
|
|---|
| 26 | */
|
|---|
| 27 |
|
|---|
| 28 | #ifndef MAIN_INCLUDED_AudioDriver_h
|
|---|
| 29 | #define MAIN_INCLUDED_AudioDriver_h
|
|---|
| 30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
|
|---|
| 31 | # pragma once
|
|---|
| 32 | #endif
|
|---|
| 33 |
|
|---|
| 34 | #include <VBox/com/ptr.h>
|
|---|
| 35 | #include <VBox/com/string.h>
|
|---|
| 36 | #include <VBox/com/AutoLock.h>
|
|---|
| 37 |
|
|---|
| 38 | using namespace com;
|
|---|
| 39 |
|
|---|
| 40 | /**
|
|---|
| 41 | * Audio driver configuration for audio drivers implemented
|
|---|
| 42 | * in Main.
|
|---|
| 43 | */
|
|---|
| 44 | struct AudioDriverCfg
|
|---|
| 45 | {
|
|---|
| 46 | AudioDriverCfg(Utf8Str a_strDev = "", unsigned a_uInst = 0, unsigned a_uLUN = 0, Utf8Str a_strName = "",
|
|---|
| 47 | bool a_fEnabledIn = false, bool a_fEnabledOut = false)
|
|---|
| 48 | : strDev(a_strDev)
|
|---|
| 49 | , uInst(a_uInst)
|
|---|
| 50 | , uLUN(a_uLUN)
|
|---|
| 51 | , strName(a_strName)
|
|---|
| 52 | , fEnabledIn(a_fEnabledIn)
|
|---|
| 53 | , fEnabledOut(a_fEnabledOut)
|
|---|
| 54 | { }
|
|---|
| 55 |
|
|---|
| 56 | /** Copy assignment operator. */
|
|---|
| 57 | AudioDriverCfg& operator=(AudioDriverCfg const &a_rThat) RT_NOEXCEPT
|
|---|
| 58 | {
|
|---|
| 59 | this->strDev = a_rThat.strDev;
|
|---|
| 60 | this->uInst = a_rThat.uInst;
|
|---|
| 61 | this->uLUN = a_rThat.uLUN;
|
|---|
| 62 | this->strName = a_rThat.strName;
|
|---|
| 63 | this->fEnabledIn = a_rThat.fEnabledIn;
|
|---|
| 64 | this->fEnabledOut = a_rThat.fEnabledOut;
|
|---|
| 65 |
|
|---|
| 66 | return *this;
|
|---|
| 67 | }
|
|---|
| 68 |
|
|---|
| 69 | /** The device name. */
|
|---|
| 70 | Utf8Str strDev;
|
|---|
| 71 | /** The device instance. */
|
|---|
| 72 | unsigned uInst;
|
|---|
| 73 | /** The LUN the driver is attached to.
|
|---|
| 74 | * Set the UINT8_MAX if not attached. */
|
|---|
| 75 | unsigned uLUN;
|
|---|
| 76 | /** The driver name. */
|
|---|
| 77 | Utf8Str strName;
|
|---|
| 78 | /** Whether input is enabled. */
|
|---|
| 79 | bool fEnabledIn;
|
|---|
| 80 | /** Whether output is enabled. */
|
|---|
| 81 | bool fEnabledOut;
|
|---|
| 82 | };
|
|---|
| 83 |
|
|---|
| 84 | class Console;
|
|---|
| 85 |
|
|---|
| 86 | /**
|
|---|
| 87 | * Base class for all audio drivers implemented in Main.
|
|---|
| 88 | */
|
|---|
| 89 | class AudioDriver
|
|---|
| 90 | {
|
|---|
| 91 |
|
|---|
| 92 | public:
|
|---|
| 93 | AudioDriver(Console *pConsole);
|
|---|
| 94 | virtual ~AudioDriver();
|
|---|
| 95 |
|
|---|
| 96 | /** Copy assignment operator. */
|
|---|
| 97 | AudioDriver &operator=(AudioDriver const &a_rThat) RT_NOEXCEPT;
|
|---|
| 98 |
|
|---|
| 99 | Console *GetParent(void) { return mpConsole; }
|
|---|
| 100 |
|
|---|
| 101 | AudioDriverCfg *GetConfig(void) { return &mCfg; }
|
|---|
| 102 | int InitializeConfig(AudioDriverCfg *pCfg);
|
|---|
| 103 |
|
|---|
| 104 | /** Checks if audio is configured or not. */
|
|---|
| 105 | bool isConfigured() const { return mCfg.strName.isNotEmpty(); }
|
|---|
| 106 |
|
|---|
| 107 | bool IsAttached(void) { return mfAttached; }
|
|---|
| 108 |
|
|---|
| 109 | int doAttachDriverViaEmt(PUVM pUVM, PCVMMR3VTABLE pVMM, util::AutoWriteLock *pAutoLock);
|
|---|
| 110 | int doDetachDriverViaEmt(PUVM pUVM, PCVMMR3VTABLE pVMM, util::AutoWriteLock *pAutoLock);
|
|---|
| 111 |
|
|---|
| 112 | protected:
|
|---|
| 113 | static DECLCALLBACK(int) attachDriverOnEmt(AudioDriver *pThis);
|
|---|
| 114 | static DECLCALLBACK(int) detachDriverOnEmt(AudioDriver *pThis);
|
|---|
| 115 |
|
|---|
| 116 | int configure(unsigned uLUN, bool fAttach);
|
|---|
| 117 |
|
|---|
| 118 | /**
|
|---|
| 119 | * Virtual function for child specific driver configuration.
|
|---|
| 120 | *
|
|---|
| 121 | * This is called at the end of AudioDriver::configure().
|
|---|
| 122 | *
|
|---|
| 123 | * @returns VBox status code.
|
|---|
| 124 | * @param pLunCfg CFGM configuration node of the driver.
|
|---|
| 125 | * @param pVMM The VMM ring-3 vtable.
|
|---|
| 126 | */
|
|---|
| 127 | virtual int configureDriver(PCFGMNODE pLunCfg, PCVMMR3VTABLE pVMM)
|
|---|
| 128 | {
|
|---|
| 129 | RT_NOREF(pLunCfg, pVMM);
|
|---|
| 130 | return VINF_SUCCESS;
|
|---|
| 131 | }
|
|---|
| 132 |
|
|---|
| 133 | protected:
|
|---|
| 134 |
|
|---|
| 135 | /** Pointer to parent. */
|
|---|
| 136 | Console *mpConsole;
|
|---|
| 137 | /** The driver's configuration. */
|
|---|
| 138 | AudioDriverCfg mCfg;
|
|---|
| 139 | /** Whether the driver is attached or not. */
|
|---|
| 140 | bool mfAttached;
|
|---|
| 141 | };
|
|---|
| 142 |
|
|---|
| 143 | #endif /* !MAIN_INCLUDED_AudioDriver_h */
|
|---|
| 144 |
|
|---|
