[43368] | 1 | /* $Id: VBoxDev-haiku.c 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxGuest kernel driver, Haiku Guest Additions, implementation.
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| 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2012-2023 Oracle and/or its affiliates.
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[43368] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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[69308] | 11 | *
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[96407] | 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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[69308] | 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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[96407] | 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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[69308] | 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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[96407] | 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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[43368] | 35 | */
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| 36 |
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| 37 | /*
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| 38 | * This code is based on:
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| 39 | *
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| 40 | * VirtualBox Guest Additions for Haiku.
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| 41 | * Copyright (c) 2011 Mike Smith <mike@scgtrp.net>
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[92181] | 42 | * François Revol <revol@free.fr>
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[43368] | 43 | *
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| 44 | * Permission is hereby granted, free of charge, to any person
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| 45 | * obtaining a copy of this software and associated documentation
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| 46 | * files (the "Software"), to deal in the Software without
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| 47 | * restriction, including without limitation the rights to use,
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| 48 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 49 | * copies of the Software, and to permit persons to whom the
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| 50 | * Software is furnished to do so, subject to the following
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| 51 | * conditions:
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| 52 | *
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| 53 | * The above copyright notice and this permission notice shall be
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| 54 | * included in all copies or substantial portions of the Software.
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| 55 | *
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| 56 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 57 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 58 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 59 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 60 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 61 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 62 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 63 | * OTHER DEALINGS IN THE SOFTWARE.
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| 64 | */
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| 65 |
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[57358] | 66 |
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| 67 | /*********************************************************************************************************************************
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| 68 | * Header Files *
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| 69 | *********************************************************************************************************************************/
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[43368] | 70 | #include <sys/param.h>
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| 71 | #include <sys/types.h>
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| 72 | #include <sys/uio.h>
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| 73 | #include <OS.h>
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| 74 | #include <Drivers.h>
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| 75 | #include <KernelExport.h>
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| 76 | #include <PCI.h>
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| 77 |
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| 78 | #include "VBoxGuest-haiku.h"
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| 79 | #include "VBoxGuestInternal.h"
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| 80 | #include <VBox/log.h>
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| 81 | #include <iprt/assert.h>
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| 82 | #include <iprt/initterm.h>
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| 83 | #include <iprt/process.h>
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| 84 | #include <iprt/mem.h>
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| 85 | #include <iprt/asm.h>
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| 86 |
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| 87 | #define DRIVER_NAME "vboxdev"
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| 88 | #define DEVICE_NAME "misc/vboxguest"
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| 89 | #define MODULE_NAME "generic/vboxguest"
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| 90 |
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[57358] | 91 |
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| 92 | /*********************************************************************************************************************************
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[58113] | 93 | * Global Variables *
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[57358] | 94 | *********************************************************************************************************************************/
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[58113] | 95 | int32 api_version = B_CUR_DRIVER_API_VERSION;
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[43368] | 96 |
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| 97 |
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| 98 | /**
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[43409] | 99 | * Driver open hook.
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[43368] | 100 | *
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[43409] | 101 | * @param name The name of the device as returned by publish_devices.
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| 102 | * @param flags Open flags.
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| 103 | * @param cookie Where to store the session pointer.
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| 104 | *
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| 105 | * @return Haiku status code.
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[43368] | 106 | */
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[58113] | 107 | static status_t vgdrvHaikuOpen(const char *name, uint32 flags, void **cookie)
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[43368] | 108 | {
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| 109 | int rc;
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| 110 | PVBOXGUESTSESSION pSession;
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| 111 |
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[58113] | 112 | LogFlow((DRIVER_NAME ":vgdrvHaikuOpen\n"));
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[43368] | 113 |
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| 114 | /*
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| 115 | * Create a new session.
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| 116 | */
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[70873] | 117 | rc = VGDrvCommonCreateUserSession(&g_DevExt, VMMDEV_REQUESTOR_USERMODE, &pSession);
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[43368] | 118 | if (RT_SUCCESS(rc))
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| 119 | {
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[58113] | 120 | Log((DRIVER_NAME ":vgdrvHaikuOpen success: g_DevExt=%p pSession=%p rc=%d pid=%d\n",&g_DevExt, pSession, rc,(int)RTProcSelf()));
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[43368] | 121 | ASMAtomicIncU32(&cUsers);
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| 122 | *cookie = pSession;
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[43409] | 123 | return B_OK;
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[43368] | 124 | }
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| 125 |
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[58113] | 126 | LogRel((DRIVER_NAME ":vgdrvHaikuOpen: failed. rc=%d\n", rc));
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[43368] | 127 | return RTErrConvertToErrno(rc);
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| 128 | }
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| 129 |
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| 130 |
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| 131 | /**
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[43409] | 132 | * Driver close hook.
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| 133 | * @param cookie The session.
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[43368] | 134 | *
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[43409] | 135 | * @return Haiku status code.
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[43368] | 136 | */
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[58113] | 137 | static status_t vgdrvHaikuClose(void *cookie)
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[43368] | 138 | {
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| 139 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)cookie;
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[58113] | 140 | Log(("vgdrvHaikuClose: pSession=%p\n", pSession));
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[43368] | 141 |
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[43369] | 142 | /** @todo r=ramshankar: should we really be using the session spinlock here? */
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| 143 | RTSpinlockAcquire(g_DevExt.SessionSpinlock);
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[43368] | 144 |
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[63566] | 145 | /** @todo we don't know if it belongs to this session!! */
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[43368] | 146 | if (sState.selectSync)
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| 147 | {
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| 148 | //dprintf(DRIVER_NAME "close: unblocking select %p %x\n", sState.selectSync, sState.selectEvent);
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| 149 | notify_select_event(sState.selectSync, sState.selectEvent);
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| 150 | sState.selectEvent = (uint8_t)0;
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| 151 | sState.selectRef = (uint32_t)0;
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| 152 | sState.selectSync = (void *)NULL;
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| 153 | }
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| 154 |
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[43369] | 155 | RTSpinlockRelease(g_DevExt.SessionSpinlock);
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[43409] | 156 | return B_OK;
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[43368] | 157 | }
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| 158 |
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| 159 |
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| 160 | /**
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[43409] | 161 | * Driver free hook.
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| 162 | * @param cookie The session.
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[43368] | 163 | *
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[43409] | 164 | * @return Haiku status code.
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[43368] | 165 | */
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[58113] | 166 | static status_t vgdrvHaikuFree(void *cookie)
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[43368] | 167 | {
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| 168 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)cookie;
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[58113] | 169 | Log(("vgdrvHaikuFree: pSession=%p\n", pSession));
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[43368] | 170 |
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| 171 | /*
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| 172 | * Close the session if it's still hanging on to the device...
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| 173 | */
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[90794] | 174 | if (RT_VALID_PTR(pSession))
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[43368] | 175 | {
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[58053] | 176 | VGDrvCommonCloseSession(&g_DevExt, pSession);
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[43368] | 177 | ASMAtomicDecU32(&cUsers);
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| 178 | }
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| 179 | else
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[58113] | 180 | Log(("vgdrvHaikuFree: si_drv1=%p!\n", pSession));
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[43409] | 181 | return B_OK;
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[43368] | 182 | }
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| 183 |
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| 184 |
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| 185 | /**
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[43409] | 186 | * Driver IOCtl entry.
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| 187 | * @param cookie The session.
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| 188 | * @param op The operation to perform.
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| 189 | * @param data The data associated with the operation.
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| 190 | * @param len Size of the data in bytes.
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[43368] | 191 | *
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[43409] | 192 | * @return Haiku status code.
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[43368] | 193 | */
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[58113] | 194 | static status_t vgdrvHaikuIOCtl(void *cookie, uint32 op, void *data, size_t len)
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[43368] | 195 | {
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| 196 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)cookie;
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[58113] | 197 | int rc;
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| 198 | Log(("vgdrvHaikuIOCtl: cookie=%p op=0x%08x data=%p len=%lu)\n", cookie, op, data, len));
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[43368] | 199 |
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| 200 | /*
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| 201 | * Validate the input.
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| 202 | */
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[90794] | 203 | if (RT_UNLIKELY(!RT_VALID_PTR(pSession)))
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[43368] | 204 | return EINVAL;
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| 205 |
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| 206 | /*
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| 207 | * Validate the request wrapper.
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| 208 | */
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| 209 | #if 0
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| 210 | if (IOCPARM_LEN(ulCmd) != sizeof(VBGLBIGREQ))
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| 211 | {
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[58113] | 212 | Log((DRIVER_NAME ": vgdrvHaikuIOCtl: bad request %lu size=%lu expected=%d\n", ulCmd, IOCPARM_LEN(ulCmd),
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[43409] | 213 | sizeof(VBGLBIGREQ)));
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[43368] | 214 | return ENOTTY;
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| 215 | }
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| 216 | #endif
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| 217 |
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| 218 | if (RT_UNLIKELY(len > _1M * 16))
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| 219 | {
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[58113] | 220 | dprintf(DRIVER_NAME ": vgdrvHaikuIOCtl: bad size %#x; pArg=%p Cmd=%lu.\n", (unsigned)len, data, op);
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[43368] | 221 | return EINVAL;
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| 222 | }
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| 223 |
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| 224 | /*
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| 225 | * Read the request.
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| 226 | */
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| 227 | void *pvBuf = NULL;
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| 228 | if (RT_LIKELY(len > 0))
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| 229 | {
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| 230 | pvBuf = RTMemTmpAlloc(len);
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| 231 | if (RT_UNLIKELY(!pvBuf))
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| 232 | {
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[58113] | 233 | LogRel((DRIVER_NAME ":vgdrvHaikuIOCtl: RTMemTmpAlloc failed to alloc %d bytes.\n", len));
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[43368] | 234 | return ENOMEM;
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| 235 | }
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| 236 |
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[43409] | 237 | /** @todo r=ramshankar: replace with RTR0MemUserCopyFrom() */
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[43368] | 238 | rc = user_memcpy(pvBuf, data, len);
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| 239 | if (RT_UNLIKELY(rc < 0))
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| 240 | {
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| 241 | RTMemTmpFree(pvBuf);
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[58113] | 242 | LogRel((DRIVER_NAME ":vgdrvHaikuIOCtl: user_memcpy failed; pvBuf=%p data=%p op=%d. rc=%d\n", pvBuf, data, op, rc));
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[43368] | 243 | return EFAULT;
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| 244 | }
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[90794] | 245 | if (RT_UNLIKELY(!RT_VALID_PTR(pvBuf)))
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[43368] | 246 | {
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| 247 | RTMemTmpFree(pvBuf);
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[58113] | 248 | LogRel((DRIVER_NAME ":vgdrvHaikuIOCtl: pvBuf invalid pointer %p\n", pvBuf));
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[43368] | 249 | return EINVAL;
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| 250 | }
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| 251 | }
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[58113] | 252 | Log(("vgdrvHaikuIOCtl: pSession=%p pid=%d.\n", pSession,(int)RTProcSelf()));
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[43368] | 253 |
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| 254 | /*
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| 255 | * Process the IOCtl.
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| 256 | */
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| 257 | size_t cbDataReturned;
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[58053] | 258 | rc = VGDrvCommonIoCtl(op, &g_DevExt, pSession, pvBuf, len, &cbDataReturned);
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[43368] | 259 | if (RT_SUCCESS(rc))
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| 260 | {
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| 261 | rc = 0;
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| 262 | if (RT_UNLIKELY(cbDataReturned > len))
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| 263 | {
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[58113] | 264 | Log(("vgdrvHaikuIOCtl: too much output data %d expected %d\n", cbDataReturned, len));
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[43368] | 265 | cbDataReturned = len;
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| 266 | }
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| 267 | if (cbDataReturned > 0)
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| 268 | {
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| 269 | rc = user_memcpy(data, pvBuf, cbDataReturned);
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| 270 | if (RT_UNLIKELY(rc < 0))
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| 271 | {
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[58113] | 272 | Log(("vgdrvHaikuIOCtl: user_memcpy failed; pvBuf=%p pArg=%p Cmd=%lu. rc=%d\n", pvBuf, data, op, rc));
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[43368] | 273 | rc = EFAULT;
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| 274 | }
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| 275 | }
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| 276 | }
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| 277 | else
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| 278 | {
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[58113] | 279 | Log(("vgdrvHaikuIOCtl: VGDrvCommonIoCtl failed. rc=%d\n", rc));
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[43368] | 280 | rc = EFAULT;
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| 281 | }
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| 282 | RTMemTmpFree(pvBuf);
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| 283 | return rc;
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| 284 | }
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| 285 |
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| 286 |
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[43409] | 287 | /**
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| 288 | * Driver select hook.
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| 289 | *
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| 290 | * @param cookie The session.
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| 291 | * @param event The event.
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| 292 | * @param ref ???
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| 293 | * @param sync ???
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| 294 | *
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| 295 | * @return Haiku status code.
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| 296 | */
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[58113] | 297 | static status_t vgdrvHaikuSelect(void *cookie, uint8 event, uint32 ref, selectsync *sync)
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[43368] | 298 | {
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| 299 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)cookie;
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| 300 | status_t err = B_OK;
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| 301 |
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| 302 | switch (event)
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| 303 | {
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| 304 | case B_SELECT_READ:
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| 305 | break;
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| 306 | default:
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| 307 | return EINVAL;
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| 308 | }
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| 309 |
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[43369] | 310 | RTSpinlockAcquire(g_DevExt.SessionSpinlock);
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[43368] | 311 |
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| 312 | uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq);
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| 313 | if (pSession->u32MousePosChangedSeq != u32CurSeq)
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| 314 | {
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| 315 | pSession->u32MousePosChangedSeq = u32CurSeq;
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| 316 | notify_select_event(sync, event);
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| 317 | }
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| 318 | else if (sState.selectSync == NULL)
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| 319 | {
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| 320 | sState.selectEvent = (uint8_t)event;
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| 321 | sState.selectRef = (uint32_t)ref;
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| 322 | sState.selectSync = (void *)sync;
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| 323 | }
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| 324 | else
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| 325 | err = B_WOULD_BLOCK;
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| 326 |
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[43369] | 327 | RTSpinlockRelease(g_DevExt.SessionSpinlock);
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[43368] | 328 |
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| 329 | return err;
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| 330 | }
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| 331 |
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| 332 |
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[43409] | 333 | /**
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| 334 | * Driver deselect hook.
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| 335 | * @param cookie The session.
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| 336 | * @param event The event.
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| 337 | * @param sync ???
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| 338 | *
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| 339 | * @return Haiku status code.
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| 340 | */
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[58113] | 341 | static status_t vgdrvHaikuDeselect(void *cookie, uint8 event, selectsync *sync)
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[43368] | 342 | {
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| 343 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)cookie;
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| 344 | status_t err = B_OK;
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| 345 | //dprintf(DRIVER_NAME "deselect(,%d,%p)\n", event, sync);
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| 346 |
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[43369] | 347 | RTSpinlockAcquire(g_DevExt.SessionSpinlock);
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[43368] | 348 |
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| 349 | if (sState.selectSync == sync)
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| 350 | {
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| 351 | //dprintf(DRIVER_NAME "deselect: dropping: %p %x\n", sState.selectSync, sState.selectEvent);
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| 352 | sState.selectEvent = (uint8_t)0;
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| 353 | sState.selectRef = (uint32_t)0;
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| 354 | sState.selectSync = NULL;
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| 355 | }
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| 356 | else
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| 357 | err = B_OK;
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| 358 |
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[43369] | 359 | RTSpinlockRelease(g_DevExt.SessionSpinlock);
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[43368] | 360 | return err;
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| 361 | }
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| 362 |
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| 363 |
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[43409] | 364 | /**
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| 365 | * Driver write hook.
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| 366 | * @param cookie The session.
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| 367 | * @param position The offset.
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| 368 | * @param data Pointer to the data.
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| 369 | * @param numBytes Where to store the number of bytes written.
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| 370 | *
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| 371 | * @return Haiku status code.
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| 372 | */
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[58113] | 373 | static status_t vgdrvHaikuWrite(void *cookie, off_t position, const void *data, size_t *numBytes)
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[43368] | 374 | {
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| 375 | *numBytes = 0;
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[43409] | 376 | return B_OK;
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[43368] | 377 | }
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| 378 |
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| 379 |
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[43409] | 380 | /**
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| 381 | * Driver read hook.
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| 382 | * @param cookie The session.
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| 383 | * @param position The offset.
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| 384 | * @param data Pointer to the data.
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| 385 | * @param numBytes Where to store the number of bytes read.
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| 386 | *
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| 387 | * @return Haiku status code.
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| 388 | */
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[58113] | 389 | static status_t vgdrvHaikuRead(void *cookie, off_t position, void *data, size_t *numBytes)
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[43368] | 390 | {
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| 391 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)cookie;
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| 392 |
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| 393 | if (*numBytes == 0)
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[43409] | 394 | return B_OK;
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[43368] | 395 |
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| 396 | uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq);
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| 397 | if (pSession->u32MousePosChangedSeq != u32CurSeq)
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| 398 | {
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| 399 | pSession->u32MousePosChangedSeq = u32CurSeq;
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| 400 | *numBytes = 1;
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[43409] | 401 | return B_OK;
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[43368] | 402 | }
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| 403 |
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| 404 | *numBytes = 0;
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[43409] | 405 | return B_OK;
|
---|
[43368] | 406 | }
|
---|
| 407 |
|
---|
| 408 |
|
---|
| 409 |
|
---|
| 410 | status_t init_hardware()
|
---|
| 411 | {
|
---|
| 412 | return get_module(MODULE_NAME, (module_info **)&g_VBoxGuest);
|
---|
| 413 | }
|
---|
| 414 |
|
---|
| 415 | status_t init_driver()
|
---|
| 416 | {
|
---|
| 417 | return B_OK;
|
---|
| 418 | }
|
---|
| 419 |
|
---|
[58113] | 420 | device_hooks *find_device(const char *name)
|
---|
[43368] | 421 | {
|
---|
[58113] | 422 | static device_hooks s_vgdrvHaikuDeviceHooks =
|
---|
[43368] | 423 | {
|
---|
[58113] | 424 | vgdrvHaikuOpen,
|
---|
| 425 | vgdrvHaikuClose,
|
---|
| 426 | vgdrvHaikuFree,
|
---|
| 427 | vgdrvHaikuIOCtl,
|
---|
| 428 | vgdrvHaikuRead,
|
---|
| 429 | vgdrvHaikuWrite,
|
---|
| 430 | vgdrvHaikuSelect,
|
---|
| 431 | vgdrvHaikuDeselect,
|
---|
[43368] | 432 | };
|
---|
[58113] | 433 | return &s_vgdrvHaikuDeviceHooks;
|
---|
[43368] | 434 | }
|
---|
| 435 |
|
---|
[58113] | 436 | const char **publish_devices()
|
---|
[43368] | 437 | {
|
---|
[58113] | 438 | static const char *s_papszDevices[] = { DEVICE_NAME, NULL };
|
---|
| 439 | return s_papszDevices;
|
---|
[43368] | 440 | }
|
---|
| 441 |
|
---|
| 442 | void uninit_driver()
|
---|
| 443 | {
|
---|
| 444 | put_module(MODULE_NAME);
|
---|
| 445 | }
|
---|
| 446 |
|
---|