| 1 | /* $NetBSD: OsdMisc.c,v 1.15 2016/01/09 21:14:42 christos Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright 2001 Wasabi Systems, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Written by Jason R. Thorpe for Wasabi Systems, Inc. |
| 8 | * |
| 9 | * Redistribution and use in source and binary forms, with or without |
| 10 | * modification, are permitted provided that the following conditions |
| 11 | * are met: |
| 12 | * 1. Redistributions of source code must retain the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer. |
| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer in the |
| 16 | * documentation and/or other materials provided with the distribution. |
| 17 | * 3. All advertising materials mentioning features or use of this software |
| 18 | * must display the following acknowledgement: |
| 19 | * This product includes software developed for the NetBSD Project by |
| 20 | * Wasabi Systems, Inc. |
| 21 | * 4. The name of Wasabi Systems, Inc. may not be used to endorse |
| 22 | * or promote products derived from this software without specific prior |
| 23 | * written permission. |
| 24 | * |
| 25 | * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND |
| 26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 27 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 28 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC |
| 29 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 35 | * POSSIBILITY OF SUCH DAMAGE. |
| 36 | */ |
| 37 | |
| 38 | /* |
| 39 | * OS Services Layer |
| 40 | * |
| 41 | * 6.10: Miscellaneous |
| 42 | */ |
| 43 | |
| 44 | #include <sys/cdefs.h> |
| 45 | __KERNEL_RCSID(0, "$NetBSD: OsdMisc.c,v 1.15 2016/01/09 21:14:42 christos Exp $" ); |
| 46 | |
| 47 | #include "opt_acpi.h" |
| 48 | #include "opt_ddb.h" |
| 49 | |
| 50 | #include <sys/param.h> |
| 51 | #include <sys/systm.h> |
| 52 | |
| 53 | #include <machine/db_machdep.h> |
| 54 | |
| 55 | #include <ddb/db_extern.h> |
| 56 | #include <ddb/db_output.h> |
| 57 | |
| 58 | #include <dev/acpi/acpica.h> |
| 59 | #include <dev/acpi/acpi_osd.h> |
| 60 | |
| 61 | #ifdef ACPI_DEBUG |
| 62 | #include <external/bsd/acpica/dist/include/acdebug.h> |
| 63 | #endif |
| 64 | |
| 65 | #ifdef ACPI_DSDT_OVERRIDE |
| 66 | #ifndef ACPI_DSDT_FILE |
| 67 | #define ACPI_DSDT_FILE "dsdt.hex" |
| 68 | #endif |
| 69 | #include ACPI_DSDT_FILE |
| 70 | #endif |
| 71 | |
| 72 | int acpi_indebugger; |
| 73 | |
| 74 | /* |
| 75 | * AcpiOsSignal: |
| 76 | * |
| 77 | * Break to the debugger or display a breakpoint message. |
| 78 | */ |
| 79 | ACPI_STATUS |
| 80 | AcpiOsSignal(UINT32 Function, void *Info) |
| 81 | { |
| 82 | /* |
| 83 | * the upper layer might call with Info = NULL, |
| 84 | * which makes little sense. |
| 85 | */ |
| 86 | if (Info == NULL) |
| 87 | return AE_NO_MEMORY; |
| 88 | |
| 89 | switch (Function) { |
| 90 | case ACPI_SIGNAL_FATAL: |
| 91 | { |
| 92 | ACPI_SIGNAL_FATAL_INFO *info = Info; |
| 93 | |
| 94 | panic("ACPI fatal signal: " |
| 95 | "Type 0x%08x, Code 0x%08x, Argument 0x%08x" , |
| 96 | info->Type, info->Code, info->Argument); |
| 97 | /* NOTREACHED */ |
| 98 | break; |
| 99 | } |
| 100 | |
| 101 | case ACPI_SIGNAL_BREAKPOINT: |
| 102 | { |
| 103 | #ifdef ACPI_BREAKPOINT |
| 104 | char *info = Info; |
| 105 | |
| 106 | printf("%s\n" , info); |
| 107 | # if defined(DDB) |
| 108 | Debugger(); |
| 109 | # else |
| 110 | printf("ACPI: WARNING: DDB not configured into kernel.\n" ); |
| 111 | return AE_NOT_EXIST; |
| 112 | # endif |
| 113 | #endif |
| 114 | break; |
| 115 | } |
| 116 | |
| 117 | default: |
| 118 | return AE_BAD_PARAMETER; |
| 119 | } |
| 120 | |
| 121 | return AE_OK; |
| 122 | } |
| 123 | |
| 124 | ACPI_STATUS |
| 125 | AcpiOsGetLine(char *Buffer, UINT32 BufferLength, UINT32 *BytesRead) |
| 126 | { |
| 127 | #if defined(DDB) |
| 128 | char *cp; |
| 129 | |
| 130 | db_readline(Buffer, 80); |
| 131 | for (cp = Buffer; *cp != 0; cp++) |
| 132 | if (*cp == '\n' || *cp == '\r') |
| 133 | *cp = 0; |
| 134 | db_output_line = 0; |
| 135 | return AE_OK; |
| 136 | #else |
| 137 | printf("ACPI: WARNING: DDB not configured into kernel.\n" ); |
| 138 | return AE_NOT_EXIST; |
| 139 | #endif |
| 140 | } |
| 141 | |
| 142 | ACPI_STATUS |
| 143 | AcpiOsTableOverride(ACPI_TABLE_HEADER *ExistingTable, |
| 144 | ACPI_TABLE_HEADER **NewTable) |
| 145 | { |
| 146 | #ifndef ACPI_DSDT_OVERRIDE |
| 147 | *NewTable = NULL; |
| 148 | #else |
| 149 | if (strncmp(ExistingTable->Signature, "DSDT" , 4) == 0) |
| 150 | *NewTable = (ACPI_TABLE_HEADER *)AmlCode; |
| 151 | else |
| 152 | *NewTable = NULL; |
| 153 | #endif |
| 154 | return AE_OK; |
| 155 | } |
| 156 | |
| 157 | ACPI_STATUS |
| 158 | AcpiOsPredefinedOverride(const ACPI_PREDEFINED_NAMES *InitVal, |
| 159 | ACPI_STRING *NewVal) |
| 160 | { |
| 161 | if (!InitVal || !NewVal) |
| 162 | return AE_BAD_PARAMETER; |
| 163 | |
| 164 | *NewVal = NULL; |
| 165 | return AE_OK; |
| 166 | } |
| 167 | |
| 168 | |
| 169 | /* |
| 170 | * AcpiOsPhysicalTableOverride: |
| 171 | * |
| 172 | * ExistingTable - Header of current table (probably firmware) |
| 173 | * NewAddress - Where new table address is returned |
| 174 | * (Physical address) |
| 175 | * NewTableLength - Where new table length is returned |
| 176 | * |
| 177 | * RETURN: Status, address/length of new table. Null pointer returned |
| 178 | * if no table is available to override. |
| 179 | * |
| 180 | * DESCRIPTION: Returns AE_SUPPORT, function not used in user space. |
| 181 | */ |
| 182 | ACPI_STATUS |
| 183 | AcpiOsPhysicalTableOverride ( |
| 184 | ACPI_TABLE_HEADER *ExistingTable, |
| 185 | ACPI_PHYSICAL_ADDRESS *NewAddress, |
| 186 | UINT32 *NewTableLength) |
| 187 | { |
| 188 | |
| 189 | return AE_SUPPORT; |
| 190 | } |
| 191 | |
| 192 | /* |
| 193 | * acpi_osd_debugger: |
| 194 | * |
| 195 | * Enter the ACPICA debugger. |
| 196 | */ |
| 197 | void |
| 198 | acpi_osd_debugger(void) |
| 199 | { |
| 200 | #ifdef ACPI_DEBUG |
| 201 | ACPI_PARSE_OBJECT obj; |
| 202 | label_t acpi_jmpbuf; |
| 203 | label_t *savejmp; |
| 204 | |
| 205 | printf("Entering ACPICA debugger...\n" ); |
| 206 | savejmp = db_recover; |
| 207 | setjmp(&acpi_jmpbuf); |
| 208 | db_recover = &acpi_jmpbuf; |
| 209 | |
| 210 | acpi_indebugger = 1; |
| 211 | AcpiDbUserCommands('A', &obj); |
| 212 | acpi_indebugger = 0; |
| 213 | |
| 214 | db_recover = savejmp; |
| 215 | #else |
| 216 | printf("ACPI: WARNING: ACPICA debugger not present.\n" ); |
| 217 | #endif |
| 218 | } |
| 219 | |