b5139de154
1) make sure Mach servers will not work on data beyond the end of the request message buffer. 2) make sure that on copying out the reply message buffer, we will not leak kernel data located after the buffer. 3) make sure that the server will not overwrite memory beyond the end of the reply message buffer. That check is the responsability of the server, there is just a DIAGNOSTIC test to check everything is in good shape. All currently implemented servers in NetBSD have been modified to check for this condition While we are here, build the mach services table (formerly in mach_namemap.c) and the services prototypes automatically from mach_services.master, just as this is done for system calls. The next step would be to fold the message formats in the mach_services.master file, but this tends to be difficult, as some messages are quite long and complex.
776 lines
33 KiB
C
776 lines
33 KiB
C
/* $NetBSD: darwin_ioframebuffer.c,v 1.24 2003/11/13 13:40:39 manu Exp $ */
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/*-
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* Copyright (c) 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: darwin_ioframebuffer.c,v 1.24 2003/11/13 13:40:39 manu Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/queue.h>
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#include <sys/malloc.h>
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#include <sys/conf.h>
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#include <sys/signal.h>
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#include <sys/mount.h>
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#include <sys/proc.h>
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#include <sys/mman.h>
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#include <sys/vnode.h>
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#include <sys/resourcevar.h>
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#include <sys/device.h>
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#include <uvm/uvm_extern.h>
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#include <uvm/uvm_object.h>
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#include <uvm/uvm_device.h>
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#include <uvm/uvm_map.h>
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#include <uvm/uvm.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <compat/common/compat_util.h>
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#include <compat/mach/mach_types.h>
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#include <compat/mach/mach_exec.h>
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#include <compat/mach/mach_message.h>
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#include <compat/mach/mach_port.h>
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#include <compat/mach/mach_errno.h>
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#include <compat/mach/mach_iokit.h>
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#include <compat/darwin/darwin_exec.h>
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#include <compat/darwin/darwin_iokit.h>
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#include <compat/darwin/darwin_sysctl.h>
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#include <compat/darwin/darwin_ioframebuffer.h>
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#include "ioconf.h"
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/* Redefined from sys/dev/wscons/wsdisplay.c */
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extern const struct cdevsw wsdisplay_cdevsw;
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#define WSDISPLAYMINOR(unit, screen) (((unit) << 8) | (screen))
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static int darwin_findscreen(dev_t *, int, int);
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static struct uvm_object *darwin_ioframebuffer_shmem = NULL;
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static void darwin_ioframebuffer_shmeminit(vaddr_t);
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/* This is ugly, but we hope to see it going away quickly */
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static char darwin_iofbconfig[] = "<dict ID=\"0\"><key>IOFBModes</key><array ID=\"1\"><dict ID=\"2\"><key>AID</key><integer size=\"32\" ID=\"3\">0xee</integer><key>DM</key><data ID=\"4\">AAACAAAAAYAAMgAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"5\">0x3e</integer></dict><dict ID=\"6\"><key>AID</key><integer size=\"32\" ID=\"7\">0x82</integer><key>DM</key><data ID=\"8\">AAACAAAAAYAAPAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"9\">0x3</integer></dict><dict ID=\"10\"><key>AID</key><integer size=\"32\" ID=\"11\">0xe8</integer><key>DM</key><data ID=\"12\">AAACAAAAAYAAPAAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"13\">0x37</integer></dict><dict ID=\"14\"><key>DM</key><data ID=\"15\">AAACAAAAAYAARgAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"16\">0x5</integer></dict><dict ID=\"17\"><key>AID</key><reference IDREF=\"11\"/><key>DM</key><data ID=\"18\">AAACgAAAAeAAPAAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"19\">0x38</integer></dict><dict ID=\"20\"><key>AID</key><reference IDREF=\"3\"/><key>DM</key><data ID=\"21\">AAACgAAAAeAAMgAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"22\">0x3f</integer></dict><dict ID=\"23\"><key>AID</key><integer size=\"32\" ID=\"24\">0x96</integer><key>DM</key><data ID=\"25\">AAACgAAAAeAAPAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"26\">0x6</integer></dict><dict ID=\"27\"><key>AID</key><integer size=\"32\" ID=\"28\">0x8c</integer><key>DM</key><data ID=\"29\">AAACgAAAAeAAQwAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"30\">0x7</integer></dict><dict ID=\"31\"><key>AID</key><integer size=\"32\" ID=\"32\">0x98</integer><key>DM</key><data ID=\"33\">AAACgAAAAeAASAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"34\">0x8</integer></dict><dict ID=\"35\"><key>AID</key><integer size=\"32\" ID=\"36\">0x9a</integer><key>DM</key><data ID=\"37\">AAACgAAAAeAASwAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"38\">0x9</integer></dict><dict ID=\"39\"><key>AID</key><integer size=\"32\" ID=\"40\">0x9e</integer><key>DM</key><data ID=\"41\">AAACgAAAAeAAVQAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"42\">0xa</integer></dict><dict ID=\"43\"><key>AID</key><integer size=\"32\" ID=\"44\">0xa0</integer><key>DM</key><data ID=\"45\">AAACgAAAA2YASwAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"46\">0xe</integer></dict><dict ID=\"47\"><key>AID</key><reference IDREF=\"3\"/><key>DM</key><data ID=\"48\">AAAC0AAAAeAAMgAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"49\">0x4b</integer></dict><dict ID=\"50\"><key>AID</key><reference IDREF=\"11\"/><key>DM</key><data ID=\"51\">AAAC0AAAAeAAPAAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"52\">0x4d</integer></dict><dict ID=\"53\"><key>AID</key><reference IDREF=\"3\"/><key>DM</key><data ID=\"54\">AAAC0AAAAkAAMgAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"55\">0x4c</integer></dict><dict ID=\"56\"><key>AID</key><reference IDREF=\"11\"/><key>DM</key><data ID=\"57\">AAAC0AAAAkAAPAAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"58\">0x4e</integer></dict><dict ID=\"59\"><key>AID</key><reference IDREF=\"3\"/><key>DM</key><data ID=\"60\">AAADIAAAAlgAMgAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"61\">0x40</integer></dict><dict ID=\"62\"><key>AID</key><integer size=\"32\" ID=\"63\">0xb4</integer><key>DM</key><data ID=\"64\">AAADIAAAAlgAOAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"65\">0xf</integer></dict><dict ID=\"66\"><key>AID</key><integer size=\"32\" ID=\"67\">0xb6</integer><key>DM</key><data ID=\"68\">AAADIAAAAlgAPAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"69\">0x10</integer></dict><dict ID=\"70\"><key>AID</key><reference IDREF=\"11\"/><key>DM</key><data ID=\"71\">AAADIAAAAlgAPAAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"72\">0x39</integer></dict><dict ID=\"73\"><key>AID</key><integer size=\"32\" ID=\"74\">0x2a</integer><key>ID</key><integer size=\"32\" ID=\"75\">0x2d</integer><key>DF</key><integer size=\"32\" ID=\"76\">0x400</integer><key>DM</key><data ID=\"77\">AAADIAAAAlgAAAAAAAAAAgAABAAAAAAAAAAAAAAAAAAAAAAA</data></dict><dict ID=\"78\"><key>DF</key><integer size=\"32\" ID=\"79\">0x100</integer><key>DM</key><data ID=\"80\">AAADIAAAAlgAPAAAAAAAAgAAAQAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"81\">0x32</integer></dict><dict ID=\"82\"><key>AID</key><integer size=\"32\" ID=\"83\">0xb8</integer><key>DM</key><data ID=\"84\">AAADIAAAAlgASAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"85\">0x11</integer></dict><dict ID=\"86\"><key>AID</key><integer size=\"32\" ID=\"87\">0xba</integer><key>DM</key><data ID=\"88\">AAADIAAAAlgASwAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"89\">0x12</integer></dict><dict ID=\"90\"><key>AID</key><reference IDREF=\"74\"/><key>ID</key><integer size=\"32\" ID=\"91\">0x46</integer><key>DF</key><reference IDREF=\"76\"/><key>DM</key><reference IDREF=\"77\"/></dict><dict ID=\"92\"><key>AID</key><integer size=\"32\" ID=\"93\">0xbc</integer><key>DM</key><data ID=\"94\">AAADIAAAAlgAVQAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"95\">0x13</integer></dict><dict ID=\"96\"><key>AID</key><reference IDREF=\"3\"/><key>DM</key><data ID=\"97\">AAADQAAAAnAAMgAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"98\">0x41</integer></dict><dict ID=\"99\"><key>AID</key><reference IDREF=\"11\"/><key>DM</key><data ID=\"100\">AAADQAAAAnAAPAAAAAAAAgAQAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"101\">0x3a</integer></dict><dict ID=\"102\"><key>AID</key><integer size=\"32\" ID=\"103\">0xaa</integer><key>DM</key><data ID=\"104\">AAADQAAAAnAASwAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"105\">0x17</integer></dict><dict ID=\"106\"><key>DM</key><data ID=\"107\">AAADVAAAAoAAPAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"108\">0x18</integer></dict><dict ID=\"109\"><key>AID</key><integer size=\"32\" ID=\"110\">0xbe</integer><key>DM</key><data ID=\"111\">AAAEAAAAAwAAPAAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"112\">0x19</integer></dict><dict ID=\"113\"><key>AID</key><reference IDREF=\"74\"/><key>ID</key><integer size=\"32\" ID=\"114\">0x2e</integer><key>DF</key><integer size=\"32\" ID=\"115\">0x407</integer><key>DM</key><data ID=\"116\">AAAEAAAAAwAAAAAAAAAAAgAABAcAAAAAAAAAAAAAAAAAAAAA</data></dict><dict ID=\"117\"><key>AID</key><reference IDREF=\"110\"/><key>ID</key><integer size=\"32\" ID=\"118\">0x33</integer><key>DF</key><reference IDREF=\"79\"/><key>DM</key><data ID=\"119\">AAAEAAAAAwAAPAAAAAAAAgAAAQAAAAAAAAAAAAAAAAAAAAAA</data></dict><dict ID=\"120\"><key>AID</key><integer size=\"32\" ID=\"121\">0xc8</integer><key>DM</key><data ID=\"122\">AAAEAAAAAwAARgAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"123\">0x1a</integer></dict><dict ID=\"124\"><key>AID</key><integer size=\"32\" ID=\"125\">0xcc</integer><key>DM</key><data ID=\"126\">AAAEAAAAAwAASwAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"127\">0x1b</integer></dict><dict ID=\"128\"><key>AID</key><integer size=\"32\" ID=\"129\">0xd2</integer><key>DM</key><reference IDREF=\"126\"/><key>ID</key><integer size=\"32\" ID=\"130\">0x1c</integer></dict><dict ID=\"131\"><key>AID</key><integer size=\"32\" ID=\"132\">0xd0</integer><key>DM</key><data ID=\"133\">AAAEAAAAAwAAVQAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"134\">0x1d</integer></dict><dict ID=\"135\"><key>AID</key><integer size=\"32\" ID=\"136\">0xdc</integer><key>DM</key><data ID=\"137\">AAAEgAAAA2YASwAAAAAAAgAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"138\">0x21</integer></dict><dict ID=\"139\"><key>AID</key><integer size=\"32\" ID=\"140\">0xfa</integer><key>DM</key><data ID=\"141\">AAAFAAAAA8AASwAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"142\">0x22</integer></dict><dict ID=\"143\"><key>AID</key><integer size=\"32\" ID=\"144\">0x104</integer><key>DM</key><data ID=\"145\">AAAFAAAABAAAPAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"146\">0x23</integer></dict><dict ID=\"147\"><key>AID</key><integer size=\"32\" ID=\"148\">0x106</integer><key>DM</key><data ID=\"149\">AAAFAAAABAAASwAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAA</data><key>ID</key><integer size=\"32\" ID=\"150\">0x24</integer></dict></array><key>IODisplayConnectFlags</key><integer size=\"32\" ID=\"151\">0x0</integer></dict>";
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static char darwin_ioframebuffer_properties[] = "<dict ID=\"0\"><key>IOClass</key><string ID=\"1\">AppleBacklightDisplay</string><key>IOProbeScore</key><integer size=\"32\" ID=\"2\">0xbb8</integer><key>IOProviderClass</key><string ID=\"3\">IODisplayConnect</string><key>CFBundleIdentifier</key><string ID=\"4\">com.apple.iokit.IOGraphicsFamily</string><key>IOMatchCategory</key><string ID=\"5\">IODefaultMatchCategory</string><key>IODisplayConnectFlags</key><data ID=\"6\">AAAIxA==</data><key>AppleDisplayType</key><integer size=\"32\" ID=\"7\">0x2</integer><key>AppleSense</key><integer size=\"32\" ID=\"8\">0x400</integer><key>DisplayVendorID</key><integer size=\"32\" ID=\"9\">0x756e6b6e</integer><key>DisplayProductID</key><integer size=\"32\" ID=\"10\">0x20000</integer><key>IODisplayParameters</key><dict ID=\"11\"><key>brightness</key><dict ID=\"12\"><key>max</key><integer size=\"32\" ID=\"13\">0x73</integer><key>min</key><integer size=\"32\" ID=\"14\">0x3a</integer><key>value</key><integer size=\"32\" ID=\"15\">0x7f</integer></dict><key>commit</key><dict ID=\"16\"><key>reg</key><integer size=\"32\" ID=\"17\">0x0</integer></dict></dict><key>IODisplayGUID</key><integer size=\"64\" ID=\"18\">0x610000000000000</integer><key>Power Management protected data</key><string ID=\"19\">{ theNumberOfPowerStates = 4, version 1, power state 0 = { capabilityFlags 00000000, outputPowerCharacter 00000000, inputPowerRequirement 00000000, staticPower 0, unbudgetedPower 0, powerToAttain 0, timeToAttain 0, settleUpTime 0, timeToLower 0, settleDownTime 0, powerDomainBudget 0 }, power state 1 = { capabilityFlags 00000000, outputPowerCharacter 00000000, inputPowerRequirement 00000000, staticPower 0, unbudgetedPower 0, powerToAttain 0, timeToAttain 0, settleUpTime 0, timeToLower 0, settleDownTime 0, powerDomainBudget 0 }, power state 2 = { capabilityFlags 00008000, outputPowerCharacter 00000000, inputPowerRequirement 00000002, staticPower 0, unbudgetedPower 0, powerToAttain 0, timeToAttain 0, settleUpTime 0, timeToLower 0, settleDownTime 0, powerDomainBudget 0 }, power state 3 = { capabilityFlags 0000c000, outputPowerCharacter 00000000, inputPowerRequirement 00000002, staticPower 0, unbudgetedPower 0, powerToAttain 0, timeToAttain 0, settleUpTime 0, timeToLower 0, settleDownTime 0, powerDomainBudget 0 }, aggressiveness = 0, myCurrentState = 0, parentsCurrentPowerFlags = 00000002, maxCapability = 3 }</string><key>Power Management private data</key><string ID=\"20\">{ this object = 0114c800, interested driver = 0114c800, driverDesire = 0, deviceDesire = 0, ourDesiredPowerState = 0, previousReqest = 0 }</string></dict>";
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struct mach_iokit_property darwin_ioframebuffer_properties_array[] = {
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{ "IOFBDependentID", NULL },
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{ "IOFBDependentIndex", NULL },
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{ "graphic-options", "<integer size=\"32\" ID=\"0\">0x0</integer>"},
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{ "IOFBConfig", darwin_iofbconfig },
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{ "IOFBMemorySize",
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"<integer size=\"32\" ID=\"0\">0x1000000</integer>"},
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{ NULL, 0}
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};
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struct mach_iokit_devclass darwin_ioframebuffer_devclass = {
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"<dict ID=\"0\"><key>IOProviderClass</key>"
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"<string ID=\"1\">IOFramebuffer</string></dict>",
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{ &mach_ioroot_devclass, NULL },
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darwin_ioframebuffer_properties,
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darwin_ioframebuffer_properties_array,
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darwin_ioframebuffer_connect_method_scalari_scalaro,
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darwin_ioframebuffer_connect_method_scalari_structo,
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darwin_ioframebuffer_connect_method_structi_structo,
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darwin_ioframebuffer_connect_method_scalari_structi,
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darwin_ioframebuffer_connect_map_memory,
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"IOFramebuffer",
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NULL,
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};
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int
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darwin_ioframebuffer_connect_method_scalari_scalaro(args)
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struct mach_trap_args *args;
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{
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mach_io_connect_method_scalari_scalaro_request_t *req = args->smsg;
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mach_io_connect_method_scalari_scalaro_reply_t *rep = args->rmsg;
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size_t *msglen = args->rsize;
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int maxoutcount;
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int error;
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#ifdef DEBUG_DARWIN
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printf("darwin_ioframebuffer_connect_method_scalari_scalaro()\n");
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#endif
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rep->rep_msgh.msgh_bits =
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MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE);
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rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
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rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
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rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
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rep->rep_outcount = 0;
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maxoutcount = req->req_in[req->req_incount];
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switch (req->req_selector) {
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case DARWIN_IOFBCREATESHAREDCURSOR: {
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/* Create the shared memory containing cursor information */
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int shmemvers;
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int maxwidth;
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int maxheight;
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size_t memsize;
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vaddr_t kvaddr;
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shmemvers = req->req_in[0]; /* 0x2 */
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maxwidth = req->req_in[1]; /* 0x20 */
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maxheight = req->req_in[2]; /* 0x20 */
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#ifdef DEBUG_DARWIN
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printf("DARWIN_IOFBCREATESHAREDCURSOR: shmemvers = %d, "
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"maxwidth = %d, maxheight = %d\n", shmemvers,
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maxwidth, maxheight);
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#endif
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if (darwin_ioframebuffer_shmem == NULL) {
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memsize =
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round_page(sizeof(*darwin_ioframebuffer_shmem));
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darwin_ioframebuffer_shmem = uao_create(memsize, 0);
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error = uvm_map(kernel_map, &kvaddr, memsize,
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darwin_ioframebuffer_shmem, 0, PAGE_SIZE,
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UVM_MAPFLAG(UVM_PROT_RW, UVM_PROT_RW,
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UVM_INH_SHARE, UVM_ADV_RANDOM, 0));
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if (error != 0) {
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uao_detach(darwin_ioframebuffer_shmem);
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darwin_ioframebuffer_shmem = NULL;
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return mach_msg_error(args, error);
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}
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if ((error = uvm_map_pageable(kernel_map, kvaddr,
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kvaddr + memsize, FALSE, 0)) != 0) {
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uao_detach(darwin_ioframebuffer_shmem);
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darwin_ioframebuffer_shmem = NULL;
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return mach_msg_error(args, error);
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}
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darwin_ioframebuffer_shmeminit(kvaddr);
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}
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/* No output, the zone is mapped during another call */
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rep->rep_outcount = 0;
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break;
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}
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case DARWIN_IOFBSETSTARTUPDISPLAYMODE: {
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darwin_iodisplaymodeid mode;
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darwin_ioindex depth;
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mode = req->req_in[0];
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depth = req->req_in[1];
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#ifdef DEBUG_DARWIN
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printf("DARWIN_IOFBSETSTARTUPDISPLAYMODE: mode = %d, "
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"depth = %d\n", mode, depth);
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#endif
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/* Nothing for now */
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break;
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}
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case DARWIN_IOFBSETDISPLAYMODE: {
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darwin_iodisplaymodeid mode;
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darwin_ioindex depth;
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mode = req->req_in[0];
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depth = req->req_in[1];
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#ifdef DEBUG_DARWIN
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printf("DARWIN_IOFBSETDISPLAYMODE: mode = %d, "
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|
"depth = %d\n", mode, depth);
|
|
#endif
|
|
/* Nothing for now */
|
|
break;
|
|
}
|
|
|
|
case DARWIN_IOFBGETCURRENTDISPLAYMODE: {
|
|
/* Get current display mode and depth. No input args */
|
|
|
|
#ifdef DEBUG_DARWIN
|
|
printf("DARWIN_IOFBGETCURRENTDISPLAYMODE\n");
|
|
#endif
|
|
if (maxoutcount < 2)
|
|
return mach_msg_error(args, EINVAL);
|
|
|
|
rep->rep_outcount = 2;
|
|
rep->rep_out[0] = 0x2e; /* mode XXX */
|
|
rep->rep_out[1] = 0; /* depth (0=>8b 1=>15b 2=>24b) */
|
|
break;
|
|
}
|
|
|
|
case DARWIN_IOFBGETATTRIBUTE: {
|
|
/* Get attribute value */
|
|
char *name;
|
|
|
|
name = (char *)&req->req_in[0];
|
|
#ifdef DEBUG_DARWIN
|
|
printf("DARWIN_IOFBGETATTRIBUTE: name = %s\n", name);
|
|
#endif
|
|
|
|
/* We only heard about the mrdf attribute. What is it? */
|
|
if (memcmp(name, "mrdf", 4) == 0) {
|
|
if (maxoutcount < 1)
|
|
return mach_msg_error(args, EINVAL);
|
|
|
|
rep->rep_outcount = 1;
|
|
rep->rep_out[0] = 0; /* XXX */
|
|
} else {
|
|
#ifdef DEBUG_DARWIN
|
|
printf("Unknown attribute %c%c%c%c\n",
|
|
req->req_in[0], req->req_in[1],
|
|
req->req_in[2], req->req_in[3]);
|
|
#endif
|
|
return mach_msg_error(args, EINVAL);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case DARWIN_IOFBGETVRAMMAPOFFSET: {
|
|
darwin_iopixelaperture aperture; /* 0 XXX Current aperture? */
|
|
|
|
aperture = req->req_in[0];
|
|
#ifdef DEBUG_DARWIN
|
|
printf("DARWIN_IOFBGETVRAMMAPOFFSET: aperture = %d\n",
|
|
aperture);
|
|
#endif
|
|
if (maxoutcount < 1)
|
|
return mach_msg_error(args, EINVAL);
|
|
|
|
rep->rep_outcount = 1;
|
|
rep->rep_out[0] = 0x00801000; /* XXX */
|
|
break;
|
|
}
|
|
|
|
default:
|
|
#ifdef DEBUG_DARWIN
|
|
printf("Unknown selector %d\n", req->req_selector);
|
|
#endif
|
|
return mach_msg_error(args, EINVAL);
|
|
break;
|
|
}
|
|
|
|
rep->rep_out[rep->rep_outcount + 1] = 8; /* XXX Trailer */
|
|
*msglen = sizeof(*rep) - ((16 - rep->rep_outcount) * sizeof(int));
|
|
rep->rep_msgh.msgh_size = *msglen - sizeof(rep->rep_trailer);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
darwin_ioframebuffer_connect_method_scalari_structo(args)
|
|
struct mach_trap_args *args;
|
|
{
|
|
mach_io_connect_method_scalari_structo_request_t *req = args->smsg;
|
|
mach_io_connect_method_scalari_structo_reply_t *rep = args->rmsg;
|
|
size_t *msglen = args->rsize;
|
|
int maxoutcount;
|
|
|
|
#ifdef DEBUG_DARWIN
|
|
printf("darwin_ioframebuffer_connect_method_scalari_structo()\n");
|
|
#endif
|
|
rep->rep_msgh.msgh_bits =
|
|
MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE);
|
|
rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
|
|
rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
|
|
rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
|
|
rep->rep_outcount = 0;
|
|
|
|
maxoutcount = req->req_in[req->req_incount];
|
|
|
|
switch(req->req_selector) {
|
|
case DARWIN_IOFBGETPIXELINFORMATION: {
|
|
/* Get bit per pixel, etc... */
|
|
darwin_iodisplaymodeid displaymode;
|
|
darwin_ioindex depth;
|
|
darwin_iopixelaperture aperture;
|
|
darwin_iopixelinformation *pixelinfo;
|
|
|
|
displaymode = req->req_in[0]; /* 0x2e */
|
|
depth = req->req_in[1]; /* 0 or 1 */
|
|
aperture = req->req_in[2]; /* 0 */
|
|
#ifdef DEBUG_DARWIN
|
|
printf("DARWIN_IOFBGETPIXELINFORMATION: displaymode = %d, "
|
|
"depth = %d, aperture = %d\n", displaymode, depth,
|
|
aperture);
|
|
#endif
|
|
pixelinfo = (darwin_iopixelinformation *)&rep->rep_out[0];
|
|
|
|
if (maxoutcount < sizeof(*pixelinfo))
|
|
return mach_msg_error(args, EINVAL);
|
|
|
|
/*
|
|
* darwin_iopixelinformation is shorter than the buffer
|
|
* usually supplied, but Darwin still returns the whole buffer
|
|
*/
|
|
rep->rep_outcount = maxoutcount;
|
|
memset(pixelinfo, 0, maxoutcount * sizeof(int));
|
|
|
|
switch (depth) {
|
|
case 0: /* 8 bpp */
|
|
pixelinfo->bytesperrow = 0x400;
|
|
pixelinfo->bytesperplane = 0;
|
|
pixelinfo->bitsperpixel = 0x8;
|
|
pixelinfo->pixeltype = DARWIN_IOFB_CLUTPIXELS;
|
|
pixelinfo->componentcount = 1;
|
|
pixelinfo->bitspercomponent = 8;
|
|
pixelinfo->componentmasks[0] = 0x000000ff;
|
|
memcpy(&pixelinfo->pixelformat, "PPPPPPPP", 8);
|
|
pixelinfo->flags = 0;
|
|
pixelinfo->activewidth = 0;
|
|
pixelinfo->activeheight = 0;
|
|
break;
|
|
|
|
case 1: /* 15 bpp */
|
|
pixelinfo->bytesperrow = 0x800;
|
|
pixelinfo->bytesperplane = 0;
|
|
pixelinfo->bitsperpixel = 0x10;
|
|
pixelinfo->pixeltype = DARWIN_IOFB_RGBDIRECTPIXELS;
|
|
pixelinfo->componentcount = 3;
|
|
pixelinfo->bitspercomponent = 5;
|
|
pixelinfo->componentmasks[0] = 0x00007c00; /* Red */
|
|
pixelinfo->componentmasks[1] = 0x000003e0; /* Green */
|
|
pixelinfo->componentmasks[2] = 0x0000001f; /* Blue */
|
|
memcpy(&pixelinfo->pixelformat, "-RRRRRGGGGGBBBBB", 16);
|
|
pixelinfo->flags = 0;
|
|
pixelinfo->activewidth = 0;
|
|
pixelinfo->activeheight = 0;
|
|
break;
|
|
|
|
case 2: /* 24 bpp */
|
|
pixelinfo->bytesperrow = 0x1000;
|
|
pixelinfo->bytesperplane = 0;
|
|
pixelinfo->bitsperpixel = 0x20;
|
|
pixelinfo->pixeltype = DARWIN_IOFB_RGBDIRECTPIXELS;
|
|
pixelinfo->componentcount = 3;
|
|
pixelinfo->bitspercomponent = 8;
|
|
pixelinfo->componentmasks[0] = 0x00ff0000; /* Red */
|
|
pixelinfo->componentmasks[1] = 0x0000ff00; /* Green */
|
|
pixelinfo->componentmasks[2] = 0x000000ff; /* Blue */
|
|
memcpy(&pixelinfo->pixelformat,
|
|
"--------RRRRRRRRGGGGGGGGBBBBBBBB", 32);
|
|
pixelinfo->flags = 0;
|
|
pixelinfo->activewidth = 0;
|
|
pixelinfo->activeheight = 0;
|
|
break;
|
|
|
|
default:
|
|
printf("unknown depth %d\n", depth);
|
|
break;
|
|
}
|
|
|
|
/* Probably useless */
|
|
rep->rep_out[158] = 0x4;
|
|
rep->rep_out[162] = 0x3;
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
#ifdef DEBUG_DARWIN
|
|
printf("Unknown selector %d\n", req->req_selector);
|
|
#endif
|
|
return mach_msg_error(args, EINVAL);
|
|
break;
|
|
}
|
|
|
|
rep->rep_out[rep->rep_outcount + 7] = 8; /* XXX Trailer */
|
|
*msglen = sizeof(*rep) - (4096 - rep->rep_outcount);
|
|
rep->rep_msgh.msgh_size = *msglen - sizeof(rep->rep_trailer);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
darwin_ioframebuffer_connect_method_structi_structo(args)
|
|
struct mach_trap_args *args;
|
|
{
|
|
mach_io_connect_method_structi_structo_request_t *req = args->smsg;
|
|
mach_io_connect_method_structi_structo_reply_t *rep = args->rmsg;
|
|
size_t *msglen = args->rsize;
|
|
|
|
#ifdef DEBUG_DARWIN
|
|
printf("darwin_ioframebuffer_connect_method_structi_structo()\n");
|
|
#endif
|
|
rep->rep_msgh.msgh_bits =
|
|
MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE);
|
|
rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
|
|
rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
|
|
rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
|
|
rep->rep_outcount = 1;
|
|
rep->rep_out[0] = 1;
|
|
rep->rep_out[rep->rep_outcount + 1] = 8; /* XXX Trailer */
|
|
|
|
*msglen = sizeof(*rep) - (4096 - rep->rep_outcount);
|
|
rep->rep_msgh.msgh_size = *msglen - sizeof(rep->rep_trailer);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
darwin_ioframebuffer_connect_map_memory(args)
|
|
struct mach_trap_args *args;
|
|
{
|
|
mach_io_connect_map_memory_request_t *req = args->smsg;
|
|
mach_io_connect_map_memory_reply_t *rep = args->rmsg;
|
|
size_t *msglen = args->rsize;
|
|
struct proc *p = args->l->l_proc;
|
|
int error = 0;
|
|
size_t memsize;
|
|
size_t len;
|
|
vaddr_t pvaddr;
|
|
|
|
#ifdef DEBUG_DARWIN
|
|
printf("darwin_ioframebuffer_connect_map_memory()\n");
|
|
#endif
|
|
switch (req->req_memtype) {
|
|
case DARWIN_IOFRAMEBUFFER_CURSOR_MEMORY:
|
|
if (darwin_ioframebuffer_shmem == NULL)
|
|
return mach_msg_error(args, error);
|
|
|
|
len = sizeof(struct darwin_ioframebuffer_shmem);
|
|
memsize = round_page(len);
|
|
|
|
uao_reference(darwin_ioframebuffer_shmem);
|
|
pvaddr = VM_DEFAULT_ADDRESS(p->p_vmspace->vm_daddr, memsize);
|
|
|
|
if ((error = uvm_map(&p->p_vmspace->vm_map, &pvaddr,
|
|
memsize, darwin_ioframebuffer_shmem, 0, PAGE_SIZE,
|
|
UVM_MAPFLAG(UVM_PROT_RW, UVM_PROT_RW,
|
|
UVM_INH_SHARE, UVM_ADV_RANDOM, 0))) != 0)
|
|
return mach_msg_error(args, error);
|
|
|
|
#ifdef DEBUG_DARWIN
|
|
printf("pvaddr = 0x%08lx\n", (long)pvaddr);
|
|
#endif
|
|
break;
|
|
|
|
case DARWIN_IOFRAMEBUFFER_VRAM_MEMORY:
|
|
case DARWIN_IOFRAMEBUFFER_SYSTEM_APERTURE: {
|
|
dev_t device;
|
|
const struct cdevsw *wsdisplay;
|
|
int unit;
|
|
int mode, screen;
|
|
struct wsdisplay_fbinfo fbi;
|
|
struct darwin_emuldata *ded;
|
|
struct vnode *vp;
|
|
|
|
/*
|
|
* Use unit given by sysctl emul.darwin.ioframebuffer_unit
|
|
* and emul.darwin.ioframebuffer_screen
|
|
*/
|
|
unit = darwin_ioframebuffer_unit;
|
|
screen = darwin_ioframebuffer_screen;
|
|
if ((error = darwin_findscreen(&device, unit, screen)) != 0)
|
|
return mach_msg_error(args, error);
|
|
|
|
if ((wsdisplay = cdevsw_lookup(device)) == NULL)
|
|
return mach_msg_error(args, ENXIO);
|
|
|
|
/* Find the framebuffer's size */
|
|
if ((error = (wsdisplay->d_ioctl)(device,
|
|
WSDISPLAYIO_GINFO, (caddr_t)&fbi, 0, p)) != 0) {
|
|
#ifdef DEBUG_DARWIN
|
|
printf("*** Cannot get screen params ***\n");
|
|
#endif
|
|
return mach_msg_error(args, error);
|
|
}
|
|
#ifdef DEBUG_DARWIN
|
|
printf("framebuffer: %d x %d x %d\n",
|
|
fbi.width, fbi.height, fbi.depth);
|
|
#endif
|
|
len = round_page(fbi.height * fbi.width * fbi.depth / 8);
|
|
|
|
/*
|
|
* The framebuffer cannot be mapped if the console is
|
|
* not in graphic mode. We will do the switch, but it
|
|
* screws the console. Therefore we attempt to restore
|
|
* its original state on process exit. ded->ded_wsdev
|
|
* is used to remember the console device. If it is not
|
|
* NODEV on process exit, we use it to restore text mode.
|
|
*/
|
|
ded = (struct darwin_emuldata *)p->p_emuldata;
|
|
if ((error = (wsdisplay->d_ioctl)(device,
|
|
WSDISPLAYIO_GMODE, (caddr_t)&mode, 0, p)) != 0) {
|
|
#ifdef DEBUG_DARWIN
|
|
printf("*** Cannot get console state ***\n");
|
|
#endif
|
|
return mach_msg_error(args, ENODEV);
|
|
}
|
|
if (mode == WSDISPLAYIO_MODE_EMUL)
|
|
ded->ded_wsdev = device;
|
|
|
|
/* Switch to graphic mode */
|
|
mode = WSDISPLAYIO_MODE_MAPPED;
|
|
if ((error = (wsdisplay->d_ioctl)(device,
|
|
WSDISPLAYIO_SMODE, (caddr_t)&mode, 0, p)) != 0) {
|
|
#ifdef DEBUG_DARWIN
|
|
printf("*** Cannot switch to graphic mode ***\n");
|
|
#endif
|
|
return mach_msg_error(args, ENODEV);
|
|
}
|
|
|
|
if ((error = cdevvp(device, &vp)) != 0) {
|
|
#ifdef DEBUG_DARWIN
|
|
printf("*** cdevvp failed ***\n");
|
|
#endif
|
|
return mach_msg_error(args, error);
|
|
}
|
|
|
|
pvaddr = 0;
|
|
if ((error = uvm_mmap(&p->p_vmspace->vm_map, &pvaddr,
|
|
len, UVM_PROT_RW, UVM_PROT_RW, MAP_SHARED, vp, 0,
|
|
p->p_rlimit[RLIMIT_MEMLOCK].rlim_cur)) != 0) {
|
|
#ifdef DEBUG_DARWIN
|
|
printf("*** uvm_mmap failed ***\n");
|
|
#endif
|
|
return mach_msg_error(args, error);
|
|
}
|
|
|
|
#ifdef DEBUG_DARWIN
|
|
printf("mapped framebuffer at %p\n", (void *)pvaddr);
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
default:
|
|
#ifdef DEBUG_DARWIN
|
|
printf("unimplemented memtype %d\n", req->req_memtype);
|
|
#endif
|
|
return mach_msg_error(args, EINVAL);
|
|
break;
|
|
}
|
|
|
|
rep->rep_msgh.msgh_bits =
|
|
MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE);
|
|
rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
|
|
rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
|
|
rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
|
|
rep->rep_retval = 0;
|
|
rep->rep_addr = pvaddr;
|
|
rep->rep_len = len;
|
|
rep->rep_trailer.msgh_trailer_size = 8;
|
|
|
|
*msglen = sizeof(*rep);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
darwin_ioframebuffer_shmeminit(kvaddr)
|
|
vaddr_t kvaddr;
|
|
{
|
|
struct darwin_ioframebuffer_shmem *shmem;
|
|
|
|
shmem = (struct darwin_ioframebuffer_shmem *)kvaddr;
|
|
|
|
return;
|
|
}
|
|
|
|
int
|
|
darwin_ioframebuffer_connect_method_scalari_structi(args)
|
|
struct mach_trap_args *args;
|
|
{
|
|
mach_io_connect_method_scalari_structi_request_t *req = args->smsg;
|
|
mach_io_connect_method_scalari_structi_reply_t *rep = args->rmsg;
|
|
size_t *msglen = args->rsize;
|
|
struct proc *p = args->l->l_proc;
|
|
int scalar_len;
|
|
int struct_len;
|
|
char *struct_data;
|
|
|
|
#ifdef DEBUG_DARWIN
|
|
printf("darwin_ioframebuffer_connect_method_scalari_structi()\n");
|
|
#endif
|
|
scalar_len = req->req_incount;
|
|
struct_len = req->req_in[scalar_len];
|
|
struct_data = (char *)&req->req_in[scalar_len + 1];
|
|
|
|
switch (req->req_selector) {
|
|
case DARWIN_IOFBSETCOLORCONVERTTABLE: {
|
|
int select;
|
|
int *data;
|
|
size_t tablelen;
|
|
#ifdef DEBUG_DARWIN
|
|
int i;
|
|
#endif
|
|
|
|
select = req->req_in[0];
|
|
tablelen = struct_len / sizeof(*data);
|
|
#ifdef DEBUG_DARWIN
|
|
printf("DARWIN_IOFBSETCOLORCONVERTTABLE: select = %d, "
|
|
"tablelen = %d\n", select, tablelen);
|
|
#endif
|
|
if (tablelen == 0)
|
|
break;
|
|
|
|
data = (int *)struct_data;
|
|
#ifdef DEBUG_DARWIN
|
|
for (i = 0; i < tablelen; i++)
|
|
printf("table entry %d: 0x%08x\n", i, data[i]);
|
|
#endif
|
|
break;
|
|
}
|
|
|
|
case DARWIN_IOFBSETCLUTWITHENTRIES: {
|
|
int index;
|
|
int option;
|
|
struct darwin_iocolorentry *clut;
|
|
size_t clutlen;
|
|
size_t kcolorsize;
|
|
caddr_t sg = stackgap_init(p, 0);
|
|
int error;
|
|
struct wsdisplay_cmap cmap;
|
|
u_char *red;
|
|
u_char *green;
|
|
u_char *blue;
|
|
u_char kred[256];
|
|
u_char kgreen[256];
|
|
u_char kblue[256];
|
|
int unit, screen;
|
|
dev_t dev;
|
|
const struct cdevsw *wsdisplay;
|
|
int i;
|
|
|
|
index = req->req_in[0];
|
|
option = req->req_in[1];
|
|
clutlen = struct_len / sizeof(*clut);
|
|
clut = (struct darwin_iocolorentry *)struct_data;
|
|
|
|
if (clutlen == 0)
|
|
break;
|
|
if (clutlen >= 256)
|
|
return mach_msg_error(args, EINVAL);
|
|
|
|
#ifdef DEBUG_DARWIN
|
|
printf("DARWIN_IOFBSETCLUTWITHENTRIES: index = %d, "
|
|
"option = %d, clutlen = %d\n", index, option, clutlen);
|
|
#endif
|
|
|
|
kcolorsize = sizeof(u_char) * clutlen;
|
|
red = stackgap_alloc(p, &sg, kcolorsize);
|
|
green = stackgap_alloc(p, &sg, kcolorsize);
|
|
blue = stackgap_alloc(p, &sg, kcolorsize);
|
|
|
|
for (i = 0; i < clutlen; i++) {
|
|
kred[i] = (u_char)(clut->red >> 8);
|
|
kgreen[i] = (u_char)(clut->green >> 8);
|
|
kblue[i] = (u_char)(clut->blue >> 8);
|
|
clut++;
|
|
}
|
|
|
|
cmap.index = index;
|
|
cmap.count = clutlen;
|
|
cmap.red = red;
|
|
cmap.green = green;
|
|
cmap.blue = blue;
|
|
|
|
if (((error = copyout(kred, red, kcolorsize)) != 0) ||
|
|
((error = copyout(kgreen, green, kcolorsize)) != 0) ||
|
|
((error = copyout(kblue, blue, kcolorsize)) != 0))
|
|
return mach_msg_error(args, error);
|
|
|
|
/*
|
|
* Find wsdisplay. Use the screen given by sysctl
|
|
* emul.darwin.ioframebuffer_screen
|
|
*/
|
|
unit = darwin_ioframebuffer_unit;
|
|
screen = darwin_ioframebuffer_screen;
|
|
if ((error = darwin_findscreen(&dev, unit, screen)) != 0)
|
|
return mach_msg_error(args, error);
|
|
|
|
if ((wsdisplay = cdevsw_lookup(dev)) == NULL)
|
|
return mach_msg_error(args, ENXIO);
|
|
|
|
if ((error = (wsdisplay->d_ioctl)(dev,
|
|
WSDISPLAYIO_PUTCMAP, (caddr_t)&cmap, 0, p)) != 0)
|
|
return mach_msg_error(args, error);
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
#ifdef DEBUG_DARWIN
|
|
printf("Unknown selector %d\n", req->req_selector);
|
|
#endif
|
|
return mach_msg_error(args, EINVAL);
|
|
break;
|
|
}
|
|
|
|
rep->rep_msgh.msgh_bits =
|
|
MACH_MSGH_REPLY_LOCAL_BITS(MACH_MSG_TYPE_MOVE_SEND_ONCE);
|
|
rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
|
|
rep->rep_msgh.msgh_local_port = req->req_msgh.msgh_local_port;
|
|
rep->rep_msgh.msgh_id = req->req_msgh.msgh_id + 100;
|
|
rep->rep_msgh.msgh_size = sizeof(*rep) - sizeof(rep->rep_trailer);
|
|
rep->rep_trailer.msgh_trailer_size = 8;
|
|
|
|
*msglen = sizeof(*rep);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Find a wsdisplay from unit and screen */
|
|
static int
|
|
darwin_findscreen(dev, unit, screen)
|
|
dev_t *dev;
|
|
int unit, screen;
|
|
{
|
|
struct device *dv;
|
|
struct wsdisplay_softc *sc;
|
|
int major, minor;
|
|
|
|
/* Find a wsdisplay */
|
|
TAILQ_FOREACH(dv, &alldevs, dv_list)
|
|
if ((dv->dv_cfdriver == &wsdisplay_cd) &&
|
|
(dv->dv_unit == unit))
|
|
break;
|
|
if (dv == NULL)
|
|
return ENODEV;
|
|
|
|
sc = (struct wsdisplay_softc *)dv;
|
|
|
|
/* Derive the device number */
|
|
major = cdevsw_lookup_major(&wsdisplay_cdevsw);
|
|
minor = WSDISPLAYMINOR(dv->dv_unit, screen);
|
|
*dev = makedev(major, minor);
|
|
|
|
#ifdef DEBUG_DARWIN
|
|
printf("ioframebuffer uses major = %d, minor = %d\n", major, minor);
|
|
#endif
|
|
return 0;
|
|
}
|