Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
Timothy Pearson | 83abd81 | 2015-06-08 19:35:06 -0500 | [diff] [blame] | 4 | * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 5 | * Copyright (C) 2009 Rudolf Marek <r.marek@assembler.cz> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
Uwe Hermann | c70e9fc | 2010-02-15 23:10:19 +0000 | [diff] [blame] | 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; version 2 of the License. |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 15 | */ |
| 16 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 17 | /* How much nesting do we support? */ |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 18 | #define ACPIGEN_LENSTACK_SIZE 10 |
| 19 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 20 | /* |
Timothy Pearson | 83abd81 | 2015-06-08 19:35:06 -0500 | [diff] [blame] | 21 | * If you need to change this, change acpigen_write_len_f and |
Vladimir Serbinenko | 8104da7 | 2014-11-09 03:33:51 +0100 | [diff] [blame] | 22 | * acpigen_pop_len |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 23 | */ |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 24 | |
Timothy Pearson | 83abd81 | 2015-06-08 19:35:06 -0500 | [diff] [blame] | 25 | #define ACPIGEN_MAXLEN 0xfffff |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 26 | |
Duncan Laurie | 3829f23 | 2016-05-09 11:08:46 -0700 | [diff] [blame] | 27 | #include <lib.h> |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 28 | #include <string.h> |
| 29 | #include <arch/acpigen.h> |
| 30 | #include <console/console.h> |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 31 | #include <device/device.h> |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 32 | |
| 33 | static char *gencurrent; |
| 34 | |
| 35 | char *len_stack[ACPIGEN_LENSTACK_SIZE]; |
| 36 | int ltop = 0; |
| 37 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 38 | void acpigen_write_len_f(void) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 39 | { |
| 40 | ASSERT(ltop < (ACPIGEN_LENSTACK_SIZE - 1)) |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 41 | len_stack[ltop++] = gencurrent; |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 42 | acpigen_emit_byte(0); |
| 43 | acpigen_emit_byte(0); |
Timothy Pearson | 83abd81 | 2015-06-08 19:35:06 -0500 | [diff] [blame] | 44 | acpigen_emit_byte(0); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 45 | } |
| 46 | |
Vladimir Serbinenko | 430363a | 2014-11-02 21:51:22 +0100 | [diff] [blame] | 47 | void acpigen_pop_len(void) |
| 48 | { |
| 49 | int len; |
| 50 | ASSERT(ltop > 0) |
| 51 | char *p = len_stack[--ltop]; |
| 52 | len = gencurrent - p; |
| 53 | ASSERT(len <= ACPIGEN_MAXLEN) |
Timothy Pearson | 83abd81 | 2015-06-08 19:35:06 -0500 | [diff] [blame] | 54 | /* generate store length for 0xfffff max */ |
| 55 | p[0] = (0x80 | (len & 0xf)); |
Vladimir Serbinenko | 430363a | 2014-11-02 21:51:22 +0100 | [diff] [blame] | 56 | p[1] = (len >> 4 & 0xff); |
Timothy Pearson | 83abd81 | 2015-06-08 19:35:06 -0500 | [diff] [blame] | 57 | p[2] = (len >> 12 & 0xff); |
Vladimir Serbinenko | 430363a | 2014-11-02 21:51:22 +0100 | [diff] [blame] | 58 | |
| 59 | } |
| 60 | |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 61 | void acpigen_set_current(char *curr) |
| 62 | { |
| 63 | gencurrent = curr; |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 64 | } |
| 65 | |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 66 | char *acpigen_get_current(void) |
| 67 | { |
| 68 | return gencurrent; |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 69 | } |
| 70 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 71 | void acpigen_emit_byte(unsigned char b) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 72 | { |
| 73 | (*gencurrent++) = b; |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 74 | } |
| 75 | |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 76 | void acpigen_emit_word(unsigned int data) |
| 77 | { |
| 78 | acpigen_emit_byte(data & 0xff); |
| 79 | acpigen_emit_byte((data >> 8) & 0xff); |
| 80 | } |
| 81 | |
| 82 | void acpigen_emit_dword(unsigned int data) |
| 83 | { |
| 84 | acpigen_emit_byte(data & 0xff); |
| 85 | acpigen_emit_byte((data >> 8) & 0xff); |
| 86 | acpigen_emit_byte((data >> 16) & 0xff); |
| 87 | acpigen_emit_byte((data >> 24) & 0xff); |
| 88 | } |
| 89 | |
Duncan Laurie | 85d8027 | 2016-07-02 19:53:54 -0700 | [diff] [blame] | 90 | char *acpigen_write_package(int nr_el) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 91 | { |
Duncan Laurie | 85d8027 | 2016-07-02 19:53:54 -0700 | [diff] [blame] | 92 | char *p; |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 93 | /* package op */ |
| 94 | acpigen_emit_byte(0x12); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 95 | acpigen_write_len_f(); |
Duncan Laurie | 85d8027 | 2016-07-02 19:53:54 -0700 | [diff] [blame] | 96 | p = acpigen_get_current(); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 97 | acpigen_emit_byte(nr_el); |
Duncan Laurie | 85d8027 | 2016-07-02 19:53:54 -0700 | [diff] [blame] | 98 | return p; |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 99 | } |
| 100 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 101 | void acpigen_write_byte(unsigned int data) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 102 | { |
| 103 | /* byte op */ |
| 104 | acpigen_emit_byte(0xa); |
| 105 | acpigen_emit_byte(data & 0xff); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 106 | } |
| 107 | |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 108 | void acpigen_write_word(unsigned int data) |
| 109 | { |
| 110 | /* word op */ |
| 111 | acpigen_emit_byte(0xb); |
| 112 | acpigen_emit_word(data); |
| 113 | } |
| 114 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 115 | void acpigen_write_dword(unsigned int data) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 116 | { |
| 117 | /* dword op */ |
| 118 | acpigen_emit_byte(0xc); |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 119 | acpigen_emit_dword(data); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 120 | } |
| 121 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 122 | void acpigen_write_qword(uint64_t data) |
Carl-Daniel Hailfinger | d58671c | 2009-02-17 21:38:51 +0000 | [diff] [blame] | 123 | { |
| 124 | /* qword op */ |
| 125 | acpigen_emit_byte(0xe); |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 126 | acpigen_emit_dword(data & 0xffffffff); |
| 127 | acpigen_emit_dword((data >> 32) & 0xffffffff); |
Carl-Daniel Hailfinger | d58671c | 2009-02-17 21:38:51 +0000 | [diff] [blame] | 128 | } |
| 129 | |
Duncan Laurie | f7c3876 | 2016-05-09 08:20:38 -0700 | [diff] [blame] | 130 | void acpigen_write_zero(void) |
| 131 | { |
| 132 | acpigen_emit_byte(0x00); |
| 133 | } |
| 134 | |
| 135 | void acpigen_write_one(void) |
| 136 | { |
| 137 | acpigen_emit_byte(0x01); |
| 138 | } |
| 139 | |
| 140 | void acpigen_write_ones(void) |
| 141 | { |
| 142 | acpigen_emit_byte(0xff); |
| 143 | } |
| 144 | |
| 145 | void acpigen_write_integer(uint64_t data) |
| 146 | { |
| 147 | if (data == 0) |
| 148 | acpigen_write_zero(); |
| 149 | else if (data == 1) |
| 150 | acpigen_write_one(); |
| 151 | else if (data <= 0xff) |
| 152 | acpigen_write_byte((unsigned char)data); |
| 153 | else if (data <= 0xffff) |
| 154 | acpigen_write_word((unsigned int)data); |
| 155 | else if (data <= 0xffffffff) |
| 156 | acpigen_write_dword((unsigned int)data); |
| 157 | else |
| 158 | acpigen_write_qword(data); |
| 159 | } |
| 160 | |
| 161 | void acpigen_write_name_zero(const char *name) |
| 162 | { |
| 163 | acpigen_write_name(name); |
| 164 | acpigen_write_one(); |
| 165 | } |
| 166 | |
| 167 | void acpigen_write_name_one(const char *name) |
| 168 | { |
| 169 | acpigen_write_name(name); |
| 170 | acpigen_write_zero(); |
| 171 | } |
| 172 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 173 | void acpigen_write_name_byte(const char *name, uint8_t val) |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 174 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 175 | acpigen_write_name(name); |
| 176 | acpigen_write_byte(val); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 177 | } |
| 178 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 179 | void acpigen_write_name_dword(const char *name, uint32_t val) |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 180 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 181 | acpigen_write_name(name); |
| 182 | acpigen_write_dword(val); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 183 | } |
| 184 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 185 | void acpigen_write_name_qword(const char *name, uint64_t val) |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 186 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 187 | acpigen_write_name(name); |
| 188 | acpigen_write_qword(val); |
Carl-Daniel Hailfinger | d58671c | 2009-02-17 21:38:51 +0000 | [diff] [blame] | 189 | } |
| 190 | |
Duncan Laurie | f7c3876 | 2016-05-09 08:20:38 -0700 | [diff] [blame] | 191 | void acpigen_write_name_integer(const char *name, uint64_t val) |
| 192 | { |
| 193 | acpigen_write_name(name); |
| 194 | acpigen_write_integer(val); |
| 195 | } |
| 196 | |
Duncan Laurie | 56b69aa | 2016-05-09 08:17:02 -0700 | [diff] [blame] | 197 | void acpigen_write_name_string(const char *name, const char *string) |
| 198 | { |
| 199 | acpigen_write_name(name); |
| 200 | acpigen_write_string(string); |
| 201 | } |
| 202 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 203 | void acpigen_emit_stream(const char *data, int size) |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 204 | { |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 205 | int i; |
| 206 | for (i = 0; i < size; i++) { |
| 207 | acpigen_emit_byte(data[i]); |
| 208 | } |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 209 | } |
| 210 | |
Duncan Laurie | 56b69aa | 2016-05-09 08:17:02 -0700 | [diff] [blame] | 211 | void acpigen_emit_string(const char *string) |
| 212 | { |
Jonathan Neuschäfer | 0ba307f | 2016-05-17 17:40:09 +0200 | [diff] [blame] | 213 | acpigen_emit_stream(string, string ? strlen(string) : 0); |
Duncan Laurie | 56b69aa | 2016-05-09 08:17:02 -0700 | [diff] [blame] | 214 | acpigen_emit_byte('\0'); /* NUL */ |
| 215 | } |
| 216 | |
| 217 | void acpigen_write_string(const char *string) |
| 218 | { |
| 219 | acpigen_emit_byte(0x0d); |
| 220 | acpigen_emit_string(string); |
| 221 | } |
| 222 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 223 | /* |
| 224 | * The naming conventions for ACPI namespace names are a bit tricky as |
Martin Roth | 0cd338e | 2016-07-29 14:07:30 -0600 | [diff] [blame^] | 225 | * each element has to be 4 chars wide ("All names are a fixed 32 bits.") |
| 226 | * and "By convention, when an ASL compiler pads a name shorter than 4 |
| 227 | * characters, it is done so with trailing underscores ('_')". |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 228 | * |
| 229 | * Check sections 5.3, 18.2.2 and 18.4 of ACPI spec 3.0 for details. |
| 230 | */ |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 231 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 232 | static void acpigen_emit_simple_namestring(const char *name) { |
| 233 | int i; |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 234 | char ud[] = "____"; |
| 235 | for (i = 0; i < 4; i++) { |
| 236 | if ((name[i] == '\0') || (name[i] == '.')) { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 237 | acpigen_emit_stream(ud, 4 - i); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 238 | break; |
| 239 | } else { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 240 | acpigen_emit_byte(name[i]); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 241 | } |
| 242 | } |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 243 | } |
| 244 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 245 | static void acpigen_emit_double_namestring(const char *name, int dotpos) { |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 246 | /* mark dual name prefix */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 247 | acpigen_emit_byte(0x2e); |
| 248 | acpigen_emit_simple_namestring(name); |
| 249 | acpigen_emit_simple_namestring(&name[dotpos + 1]); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 250 | } |
| 251 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 252 | static void acpigen_emit_multi_namestring(const char *name) { |
| 253 | int count = 0; |
Stefan Reinauer | 14e2277 | 2010-04-27 06:56:47 +0000 | [diff] [blame] | 254 | unsigned char *pathlen; |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 255 | /* mark multi name prefix */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 256 | acpigen_emit_byte(0x2f); |
| 257 | acpigen_emit_byte(0x0); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 258 | pathlen = ((unsigned char *) acpigen_get_current()) - 1; |
| 259 | |
| 260 | while (name[0] != '\0') { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 261 | acpigen_emit_simple_namestring(name); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 262 | /* find end or next entity */ |
| 263 | while ((name[0] != '.') && (name[0] != '\0')) |
| 264 | name++; |
| 265 | /* forward to next */ |
| 266 | if (name[0] == '.') |
| 267 | name++; |
| 268 | count++; |
| 269 | } |
| 270 | |
| 271 | pathlen[0] = count; |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 275 | void acpigen_emit_namestring(const char *namepath) { |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 276 | int dotcount = 0, i; |
Myles Watson | 3fe6b70 | 2009-10-09 20:13:43 +0000 | [diff] [blame] | 277 | int dotpos = 0; |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 278 | |
Ronald G. Minnich | be738eb | 2013-03-07 11:05:28 -0600 | [diff] [blame] | 279 | /* We can start with a '\'. */ |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 280 | if (namepath[0] == '\\') { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 281 | acpigen_emit_byte('\\'); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 282 | namepath++; |
| 283 | } |
| 284 | |
Ronald G. Minnich | be738eb | 2013-03-07 11:05:28 -0600 | [diff] [blame] | 285 | /* And there can be any number of '^' */ |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 286 | while (namepath[0] == '^') { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 287 | acpigen_emit_byte('^'); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 288 | namepath++; |
| 289 | } |
| 290 | |
Vladimir Serbinenko | d942ed9 | 2014-08-30 20:44:37 +0200 | [diff] [blame] | 291 | /* If we have only \\ or only ^...^. Then we need to put a null |
| 292 | name (0x00). */ |
| 293 | if(namepath[0] == '\0') { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 294 | acpigen_emit_byte(0x00); |
| 295 | return; |
Vladimir Serbinenko | d942ed9 | 2014-08-30 20:44:37 +0200 | [diff] [blame] | 296 | } |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 297 | |
| 298 | i = 0; |
| 299 | while (namepath[i] != '\0') { |
| 300 | if (namepath[i] == '.') { |
| 301 | dotcount++; |
| 302 | dotpos = i; |
| 303 | } |
| 304 | i++; |
| 305 | } |
| 306 | |
| 307 | if (dotcount == 0) { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 308 | acpigen_emit_simple_namestring(namepath); |
Stefan Reinauer | 14e2277 | 2010-04-27 06:56:47 +0000 | [diff] [blame] | 309 | } else if (dotcount == 1) { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 310 | acpigen_emit_double_namestring(namepath, dotpos); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 311 | } else { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 312 | acpigen_emit_multi_namestring(namepath); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 313 | } |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 314 | } |
| 315 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 316 | void acpigen_write_name(const char *name) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 317 | { |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 318 | /* name op */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 319 | acpigen_emit_byte(0x8); |
| 320 | acpigen_emit_namestring(name); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 321 | } |
| 322 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 323 | void acpigen_write_scope(const char *name) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 324 | { |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 325 | /* scope op */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 326 | acpigen_emit_byte(0x10); |
| 327 | acpigen_write_len_f(); |
| 328 | acpigen_emit_namestring(name); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 329 | } |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 330 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 331 | void acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len) |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 332 | { |
| 333 | /* |
| 334 | Processor (\_PR.CPUcpuindex, cpuindex, pblock_addr, pblock_len) |
| 335 | { |
| 336 | */ |
| 337 | char pscope[16]; |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 338 | /* processor op */ |
| 339 | acpigen_emit_byte(0x5b); |
| 340 | acpigen_emit_byte(0x83); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 341 | acpigen_write_len_f(); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 342 | |
Vladimir Serbinenko | a37383d | 2013-11-26 02:41:26 +0100 | [diff] [blame] | 343 | snprintf(pscope, sizeof (pscope), |
Timothy Pearson | 033bb4b | 2015-02-10 22:21:39 -0600 | [diff] [blame] | 344 | "\\_PR.CP%02d", (unsigned int) cpuindex); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 345 | acpigen_emit_namestring(pscope); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 346 | acpigen_emit_byte(cpuindex); |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 347 | acpigen_emit_dword(pblock_addr); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 348 | acpigen_emit_byte(pblock_len); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 349 | } |
| 350 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 351 | void acpigen_write_empty_PCT(void) |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 352 | { |
| 353 | /* |
| 354 | Name (_PCT, Package (0x02) |
| 355 | { |
| 356 | ResourceTemplate () |
| 357 | { |
| 358 | Register (FFixedHW, |
| 359 | 0x00, // Bit Width |
| 360 | 0x00, // Bit Offset |
| 361 | 0x0000000000000000, // Address |
| 362 | ,) |
| 363 | }, |
| 364 | |
| 365 | ResourceTemplate () |
| 366 | { |
| 367 | Register (FFixedHW, |
| 368 | 0x00, // Bit Width |
| 369 | 0x00, // Bit Offset |
| 370 | 0x0000000000000000, // Address |
| 371 | ,) |
| 372 | } |
| 373 | }) |
| 374 | */ |
| 375 | static char stream[] = { |
| 376 | 0x08, 0x5F, 0x50, 0x43, 0x54, 0x12, 0x2C, /* 00000030 "0._PCT.," */ |
| 377 | 0x02, 0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, /* 00000038 "........" */ |
| 378 | 0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00000040 "........" */ |
| 379 | 0x00, 0x00, 0x00, 0x00, 0x79, 0x00, 0x11, 0x14, /* 00000048 "....y..." */ |
| 380 | 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F, 0x00, 0x00, /* 00000050 "........" */ |
| 381 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00000058 "........" */ |
| 382 | 0x00, 0x79, 0x00 |
| 383 | }; |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 384 | acpigen_emit_stream(stream, ARRAY_SIZE(stream)); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 385 | } |
| 386 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 387 | void acpigen_write_empty_PTC(void) |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 388 | { |
| 389 | /* |
| 390 | Name (_PTC, Package (0x02) |
| 391 | { |
| 392 | ResourceTemplate () |
| 393 | { |
| 394 | Register (FFixedHW, |
| 395 | 0x00, // Bit Width |
| 396 | 0x00, // Bit Offset |
| 397 | 0x0000000000000000, // Address |
| 398 | ,) |
| 399 | }, |
| 400 | |
| 401 | ResourceTemplate () |
| 402 | { |
| 403 | Register (FFixedHW, |
| 404 | 0x00, // Bit Width |
| 405 | 0x00, // Bit Offset |
| 406 | 0x0000000000000000, // Address |
| 407 | ,) |
| 408 | } |
| 409 | }) |
| 410 | */ |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 411 | acpi_addr_t addr = { |
| 412 | .space_id = ACPI_ADDRESS_SPACE_FIXED, |
| 413 | .bit_width = 0, |
| 414 | .bit_offset = 0, |
zbao | ee8a9f6c | 2012-05-29 14:59:38 +0800 | [diff] [blame] | 415 | { |
| 416 | .resv = 0 |
| 417 | }, |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 418 | .addrl = 0, |
| 419 | .addrh = 0, |
| 420 | }; |
| 421 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 422 | acpigen_write_name("_PTC"); |
| 423 | acpigen_write_package(2); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 424 | |
| 425 | /* ControlRegister */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 426 | acpigen_write_resourcetemplate_header(); |
| 427 | acpigen_write_register(&addr); |
| 428 | acpigen_write_resourcetemplate_footer(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 429 | |
| 430 | /* StatusRegister */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 431 | acpigen_write_resourcetemplate_header(); |
| 432 | acpigen_write_register(&addr); |
| 433 | acpigen_write_resourcetemplate_footer(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 434 | |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 435 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 436 | } |
| 437 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 438 | void acpigen_write_method(const char *name, int nargs) |
Vladimir Serbinenko | 80fb8ed | 2014-11-05 10:28:28 +0100 | [diff] [blame] | 439 | { |
Vladimir Serbinenko | 80fb8ed | 2014-11-05 10:28:28 +0100 | [diff] [blame] | 440 | /* method op */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 441 | acpigen_emit_byte(0x14); |
| 442 | acpigen_write_len_f(); |
| 443 | acpigen_emit_namestring(name); |
| 444 | acpigen_emit_byte(nargs & 7); |
Vladimir Serbinenko | 80fb8ed | 2014-11-05 10:28:28 +0100 | [diff] [blame] | 445 | } |
| 446 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 447 | void acpigen_write_device(const char *name) |
Vladimir Serbinenko | 663be6e | 2014-11-05 21:29:45 +0100 | [diff] [blame] | 448 | { |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 449 | /* device op */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 450 | acpigen_emit_byte(0x5b); |
| 451 | acpigen_emit_byte(0x82); |
| 452 | acpigen_write_len_f(); |
| 453 | acpigen_emit_namestring(name); |
Vladimir Serbinenko | 663be6e | 2014-11-05 21:29:45 +0100 | [diff] [blame] | 454 | } |
| 455 | |
Duncan Laurie | abe2de8 | 2016-05-09 11:08:46 -0700 | [diff] [blame] | 456 | void acpigen_write_STA(uint8_t status) |
| 457 | { |
| 458 | /* |
| 459 | * Method (_STA, 0, NotSerialized) { Return (status) } |
| 460 | */ |
| 461 | acpigen_write_method("_STA", 0); |
| 462 | acpigen_emit_byte(0xa4); |
| 463 | acpigen_write_byte(status); |
| 464 | acpigen_pop_len(); |
| 465 | } |
| 466 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 467 | /* |
| 468 | * Generates a func with max supported P-states. |
| 469 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 470 | void acpigen_write_PPC(u8 nr) |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 471 | { |
| 472 | /* |
| 473 | Method (_PPC, 0, NotSerialized) |
| 474 | { |
| 475 | Return (nr) |
| 476 | } |
| 477 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 478 | acpigen_write_method("_PPC", 0); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 479 | /* return */ |
| 480 | acpigen_emit_byte(0xa4); |
| 481 | /* arg */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 482 | acpigen_write_byte(nr); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 483 | acpigen_pop_len(); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 484 | } |
| 485 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 486 | /* |
| 487 | * Generates a func with max supported P-states saved |
| 488 | * in the variable PPCM. |
| 489 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 490 | void acpigen_write_PPC_NVS(void) |
Duncan Laurie | 0eefa00 | 2012-07-16 12:11:53 -0700 | [diff] [blame] | 491 | { |
| 492 | /* |
| 493 | Method (_PPC, 0, NotSerialized) |
| 494 | { |
| 495 | Return (PPCM) |
| 496 | } |
| 497 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 498 | acpigen_write_method("_PPC", 0); |
Duncan Laurie | 0eefa00 | 2012-07-16 12:11:53 -0700 | [diff] [blame] | 499 | /* return */ |
| 500 | acpigen_emit_byte(0xa4); |
| 501 | /* arg */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 502 | acpigen_emit_namestring("PPCM"); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 503 | acpigen_pop_len(); |
Duncan Laurie | 0eefa00 | 2012-07-16 12:11:53 -0700 | [diff] [blame] | 504 | } |
| 505 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 506 | void acpigen_write_TPC(const char *gnvs_tpc_limit) |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 507 | { |
| 508 | /* |
| 509 | // Sample _TPC method |
| 510 | Method (_TPC, 0, NotSerialized) |
| 511 | { |
| 512 | Return (\TLVL) |
| 513 | } |
| 514 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 515 | acpigen_write_method("_TPC", 0); |
| 516 | acpigen_emit_byte(0xa4); /* ReturnOp */ |
| 517 | acpigen_emit_namestring(gnvs_tpc_limit); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 518 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 519 | } |
| 520 | |
Duncan Laurie | abe2de8 | 2016-05-09 11:08:46 -0700 | [diff] [blame] | 521 | void acpigen_write_PRW(u32 wake, u32 level) |
| 522 | { |
| 523 | /* |
| 524 | * Name (_PRW, Package () { wake, level } |
| 525 | */ |
| 526 | acpigen_write_name("_PRW"); |
| 527 | acpigen_write_package(2); |
| 528 | acpigen_write_integer(wake); |
| 529 | acpigen_write_integer(level); |
| 530 | acpigen_pop_len(); |
| 531 | } |
| 532 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 533 | void acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 534 | u32 busmLat, u32 control, u32 status) |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 535 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 536 | acpigen_write_package(6); |
| 537 | acpigen_write_dword(coreFreq); |
| 538 | acpigen_write_dword(power); |
| 539 | acpigen_write_dword(transLat); |
| 540 | acpigen_write_dword(busmLat); |
| 541 | acpigen_write_dword(control); |
| 542 | acpigen_write_dword(status); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 543 | acpigen_pop_len(); |
Stefan Reinauer | d4bacf9 | 2012-05-02 16:38:47 -0700 | [diff] [blame] | 544 | |
| 545 | printk(BIOS_DEBUG, "PSS: %uMHz power %u control 0x%x status 0x%x\n", |
| 546 | coreFreq, power, control, status); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 547 | } |
Patrick Georgi | df444bf | 2009-04-21 20:34:36 +0000 | [diff] [blame] | 548 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 549 | void acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype) |
Patrick Georgi | df444bf | 2009-04-21 20:34:36 +0000 | [diff] [blame] | 550 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 551 | acpigen_write_name("_PSD"); |
| 552 | acpigen_write_package(1); |
| 553 | acpigen_write_package(5); |
| 554 | acpigen_write_byte(5); // 5 values |
| 555 | acpigen_write_byte(0); // revision 0 |
| 556 | acpigen_write_dword(domain); |
| 557 | acpigen_write_dword(coordtype); |
| 558 | acpigen_write_dword(numprocs); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 559 | acpigen_pop_len(); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 560 | acpigen_pop_len(); |
Patrick Georgi | df444bf | 2009-04-21 20:34:36 +0000 | [diff] [blame] | 561 | } |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 562 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 563 | void acpigen_write_CST_package_entry(acpi_cstate_t *cstate) |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 564 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 565 | acpigen_write_package(4); |
| 566 | acpigen_write_resourcetemplate_header(); |
Stefan Reinauer | 4cc8c70 | 2012-04-27 21:34:16 +0200 | [diff] [blame] | 567 | acpigen_write_register(&cstate->resource); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 568 | acpigen_write_resourcetemplate_footer(); |
| 569 | acpigen_write_dword(cstate->ctype); |
| 570 | acpigen_write_dword(cstate->latency); |
| 571 | acpigen_write_dword(cstate->power); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 572 | acpigen_pop_len(); |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 573 | } |
| 574 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 575 | void acpigen_write_CST_package(acpi_cstate_t *cstate, int nentries) |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 576 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 577 | int i; |
| 578 | acpigen_write_name("_CST"); |
| 579 | acpigen_write_package(nentries+1); |
| 580 | acpigen_write_dword(nentries); |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 581 | |
| 582 | for (i = 0; i < nentries; i++) |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 583 | acpigen_write_CST_package_entry(cstate + i); |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 584 | |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 585 | acpigen_pop_len(); |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 586 | } |
| 587 | |
Timothy Pearson | 83abd81 | 2015-06-08 19:35:06 -0500 | [diff] [blame] | 588 | void acpigen_write_CSD_package(u32 domain, u32 numprocs, CSD_coord coordtype, u32 index) |
| 589 | { |
| 590 | acpigen_write_name("_CSD"); |
| 591 | acpigen_write_package(1); |
| 592 | acpigen_write_package(6); |
| 593 | acpigen_write_byte(6); // 6 values |
| 594 | acpigen_write_byte(0); // revision 0 |
| 595 | acpigen_write_dword(domain); |
| 596 | acpigen_write_dword(coordtype); |
| 597 | acpigen_write_dword(numprocs); |
| 598 | acpigen_write_dword(index); |
| 599 | acpigen_pop_len(); |
| 600 | acpigen_pop_len(); |
| 601 | } |
| 602 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 603 | void acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list) |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 604 | { |
| 605 | /* |
| 606 | Sample _TSS package with 100% and 50% duty cycles |
| 607 | Name (_TSS, Package (0x02) |
| 608 | { |
| 609 | Package(){100, 1000, 0, 0x00, 0) |
| 610 | Package(){50, 520, 0, 0x18, 0) |
| 611 | }) |
| 612 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 613 | int i; |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 614 | acpi_tstate_t *tstate = tstate_list; |
| 615 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 616 | acpigen_write_name("_TSS"); |
| 617 | acpigen_write_package(entries); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 618 | |
| 619 | for (i = 0; i < entries; i++) { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 620 | acpigen_write_package(5); |
| 621 | acpigen_write_dword(tstate->percent); |
| 622 | acpigen_write_dword(tstate->power); |
| 623 | acpigen_write_dword(tstate->latency); |
| 624 | acpigen_write_dword(tstate->control); |
| 625 | acpigen_write_dword(tstate->status); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 626 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 627 | tstate++; |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 628 | } |
| 629 | |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 630 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 631 | } |
| 632 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 633 | void acpigen_write_TSD_package(u32 domain, u32 numprocs, PSD_coord coordtype) |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 634 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 635 | acpigen_write_name("_TSD"); |
| 636 | acpigen_write_package(1); |
| 637 | acpigen_write_package(5); |
| 638 | acpigen_write_byte(5); // 5 values |
| 639 | acpigen_write_byte(0); // revision 0 |
| 640 | acpigen_write_dword(domain); |
| 641 | acpigen_write_dword(coordtype); |
| 642 | acpigen_write_dword(numprocs); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 643 | acpigen_pop_len(); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 644 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 645 | } |
| 646 | |
| 647 | |
| 648 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 649 | void acpigen_write_mem32fixed(int readwrite, u32 base, u32 size) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 650 | { |
| 651 | /* |
| 652 | * acpi 4.0 section 6.4.3.4: 32-Bit Fixed Memory Range Descriptor |
| 653 | * Byte 0: |
| 654 | * Bit7 : 1 => big item |
| 655 | * Bit6-0: 0000110 (0x6) => 32-bit fixed memory |
| 656 | */ |
| 657 | acpigen_emit_byte(0x86); |
| 658 | /* Byte 1+2: length (0x0009) */ |
| 659 | acpigen_emit_byte(0x09); |
| 660 | acpigen_emit_byte(0x00); |
| 661 | /* bit1-7 are ignored */ |
| 662 | acpigen_emit_byte(readwrite ? 0x01 : 0x00); |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 663 | acpigen_emit_dword(base); |
| 664 | acpigen_emit_dword(size); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 665 | } |
| 666 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 667 | void acpigen_write_register(acpi_addr_t *addr) |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 668 | { |
Stefan Reinauer | 4cc8c70 | 2012-04-27 21:34:16 +0200 | [diff] [blame] | 669 | acpigen_emit_byte(0x82); /* Register Descriptor */ |
| 670 | acpigen_emit_byte(0x0c); /* Register Length 7:0 */ |
| 671 | acpigen_emit_byte(0x00); /* Register Length 15:8 */ |
| 672 | acpigen_emit_byte(addr->space_id); /* Address Space ID */ |
| 673 | acpigen_emit_byte(addr->bit_width); /* Register Bit Width */ |
| 674 | acpigen_emit_byte(addr->bit_offset); /* Register Bit Offset */ |
| 675 | acpigen_emit_byte(addr->resv); /* Register Access Size */ |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 676 | acpigen_emit_dword(addr->addrl); /* Register Address Low */ |
| 677 | acpigen_emit_dword(addr->addrh); /* Register Address High */ |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 678 | } |
| 679 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 680 | void acpigen_write_irq(u16 mask) |
Vladimir Serbinenko | 20ea040 | 2014-02-15 18:57:17 +0100 | [diff] [blame] | 681 | { |
| 682 | /* |
| 683 | * acpi 3.0b section 6.4.2.1: IRQ Descriptor |
| 684 | * Byte 0: |
| 685 | * Bit7 : 0 => small item |
| 686 | * Bit6-3: 0100 (0x4) => IRQ port descriptor |
| 687 | * Bit2-0: 010 (0x2) => 2 Bytes long |
| 688 | */ |
| 689 | acpigen_emit_byte(0x22); |
| 690 | acpigen_emit_byte(mask & 0xff); |
| 691 | acpigen_emit_byte((mask >> 8) & 0xff); |
Vladimir Serbinenko | 20ea040 | 2014-02-15 18:57:17 +0100 | [diff] [blame] | 692 | } |
| 693 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 694 | void acpigen_write_io16(u16 min, u16 max, u8 align, u8 len, u8 decode16) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 695 | { |
| 696 | /* |
| 697 | * acpi 4.0 section 6.4.2.6: I/O Port Descriptor |
| 698 | * Byte 0: |
| 699 | * Bit7 : 0 => small item |
| 700 | * Bit6-3: 1000 (0x8) => I/O port descriptor |
| 701 | * Bit2-0: 111 (0x7) => 7 Bytes long |
| 702 | */ |
| 703 | acpigen_emit_byte(0x47); |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 704 | /* Does the device decode all 16 or just 10 bits? */ |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 705 | /* bit1-7 are ignored */ |
| 706 | acpigen_emit_byte(decode16 ? 0x01 : 0x00); |
| 707 | /* minimum base address the device may be configured for */ |
| 708 | acpigen_emit_byte(min & 0xff); |
| 709 | acpigen_emit_byte((min >> 8) & 0xff); |
| 710 | /* maximum base address the device may be configured for */ |
| 711 | acpigen_emit_byte(max & 0xff); |
| 712 | acpigen_emit_byte((max >> 8) & 0xff); |
| 713 | /* alignment for min base */ |
| 714 | acpigen_emit_byte(align & 0xff); |
| 715 | acpigen_emit_byte(len & 0xff); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 716 | } |
| 717 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 718 | void acpigen_write_resourcetemplate_header(void) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 719 | { |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 720 | /* |
| 721 | * A ResourceTemplate() is a Buffer() with a |
| 722 | * (Byte|Word|DWord) containing the length, followed by one or more |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 723 | * resource items, terminated by the end tag. |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 724 | * (small item 0xf, len 1) |
| 725 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 726 | acpigen_emit_byte(0x11); /* Buffer opcode */ |
| 727 | acpigen_write_len_f(); |
| 728 | acpigen_emit_byte(0x0b); /* Word opcode */ |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 729 | len_stack[ltop++] = acpigen_get_current(); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 730 | acpigen_emit_byte(0x00); |
| 731 | acpigen_emit_byte(0x00); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 732 | } |
| 733 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 734 | void acpigen_write_resourcetemplate_footer(void) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 735 | { |
| 736 | char *p = len_stack[--ltop]; |
Vladimir Serbinenko | 9acc1e8 | 2014-11-09 03:37:28 +0100 | [diff] [blame] | 737 | int len; |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 738 | /* |
| 739 | * end tag (acpi 4.0 Section 6.4.2.8) |
| 740 | * 0x79 <checksum> |
| 741 | * 0x00 is treated as a good checksum according to the spec |
| 742 | * and is what iasl generates. |
| 743 | */ |
Vladimir Serbinenko | 9acc1e8 | 2014-11-09 03:37:28 +0100 | [diff] [blame] | 744 | acpigen_emit_byte(0x79); |
| 745 | acpigen_emit_byte(0x00); |
| 746 | |
Martin Roth | e369010 | 2016-01-06 15:21:02 -0700 | [diff] [blame] | 747 | len = gencurrent - p; |
Vladimir Serbinenko | 9acc1e8 | 2014-11-09 03:37:28 +0100 | [diff] [blame] | 748 | |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 749 | /* patch len word */ |
Vladimir Serbinenko | 9acc1e8 | 2014-11-09 03:37:28 +0100 | [diff] [blame] | 750 | p[0] = len & 0xff; |
| 751 | p[1] = (len >> 8) & 0xff; |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 752 | /* patch len field */ |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 753 | acpigen_pop_len(); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 754 | } |
| 755 | |
| 756 | static void acpigen_add_mainboard_rsvd_mem32(void *gp, struct device *dev, |
| 757 | struct resource *res) |
| 758 | { |
| 759 | acpigen_write_mem32fixed(0, res->base, res->size); |
| 760 | } |
| 761 | |
| 762 | static void acpigen_add_mainboard_rsvd_io(void *gp, struct device *dev, |
| 763 | struct resource *res) |
| 764 | { |
| 765 | resource_t base = res->base; |
| 766 | resource_t size = res->size; |
| 767 | while (size > 0) { |
| 768 | resource_t sz = size > 255 ? 255 : size; |
| 769 | acpigen_write_io16(base, base, 0, sz, 1); |
| 770 | size -= sz; |
| 771 | base += sz; |
| 772 | } |
| 773 | } |
| 774 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 775 | void acpigen_write_mainboard_resource_template(void) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 776 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 777 | acpigen_write_resourcetemplate_header(); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 778 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 779 | /* Add reserved memory ranges. */ |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 780 | search_global_resources( |
| 781 | IORESOURCE_MEM | IORESOURCE_RESERVE, |
| 782 | IORESOURCE_MEM | IORESOURCE_RESERVE, |
| 783 | acpigen_add_mainboard_rsvd_mem32, 0); |
| 784 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 785 | /* Add reserved io ranges. */ |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 786 | search_global_resources( |
| 787 | IORESOURCE_IO | IORESOURCE_RESERVE, |
| 788 | IORESOURCE_IO | IORESOURCE_RESERVE, |
| 789 | acpigen_add_mainboard_rsvd_io, 0); |
| 790 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 791 | acpigen_write_resourcetemplate_footer(); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 792 | } |
| 793 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 794 | void acpigen_write_mainboard_resources(const char *scope, const char *name) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 795 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 796 | acpigen_write_scope(scope); |
| 797 | acpigen_write_name(name); |
| 798 | acpigen_write_mainboard_resource_template(); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 799 | acpigen_pop_len(); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 800 | } |
Vladimir Serbinenko | 8ecdc9e | 2014-02-15 18:59:40 +0100 | [diff] [blame] | 801 | |
| 802 | static int hex2bin(const char c) |
| 803 | { |
| 804 | if (c >= 'A' && c <= 'F') |
| 805 | return c - 'A' + 10; |
| 806 | if (c >= 'a' && c <= 'f') |
| 807 | return c - 'a' + 10; |
| 808 | return c - '0'; |
| 809 | } |
| 810 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 811 | void acpigen_emit_eisaid(const char *eisaid) |
Vladimir Serbinenko | 8ecdc9e | 2014-02-15 18:59:40 +0100 | [diff] [blame] | 812 | { |
| 813 | u32 compact = 0; |
| 814 | |
| 815 | /* Clamping individual values would be better but |
| 816 | there is a disagreement over what is a valid |
| 817 | EISA id, so accept anything and don't clamp, |
| 818 | parent code should create a valid EISAid. |
| 819 | */ |
| 820 | compact |= (eisaid[0] - 'A' + 1) << 26; |
| 821 | compact |= (eisaid[1] - 'A' + 1) << 21; |
| 822 | compact |= (eisaid[2] - 'A' + 1) << 16; |
| 823 | compact |= hex2bin(eisaid[3]) << 12; |
| 824 | compact |= hex2bin(eisaid[4]) << 8; |
| 825 | compact |= hex2bin(eisaid[5]) << 4; |
| 826 | compact |= hex2bin(eisaid[6]); |
| 827 | |
| 828 | acpigen_emit_byte(0xc); |
| 829 | acpigen_emit_byte((compact >> 24) & 0xff); |
| 830 | acpigen_emit_byte((compact >> 16) & 0xff); |
| 831 | acpigen_emit_byte((compact >> 8) & 0xff); |
| 832 | acpigen_emit_byte(compact & 0xff); |
Vladimir Serbinenko | 8ecdc9e | 2014-02-15 18:59:40 +0100 | [diff] [blame] | 833 | } |
Duncan Laurie | 3829f23 | 2016-05-09 11:08:46 -0700 | [diff] [blame] | 834 | |
| 835 | /* |
| 836 | * ToUUID(uuid) |
| 837 | * |
| 838 | * ACPI 6.1 Section 19.6.136 table 19-385 defines a special output |
| 839 | * order for the bytes that make up a UUID Buffer object. |
| 840 | * UUID byte order for input: |
| 841 | * aabbccdd-eeff-gghh-iijj-kkllmmnnoopp |
| 842 | * UUID byte order for output: |
| 843 | * ddccbbaa-ffee-hhgg-iijj-kkllmmnnoopp |
| 844 | */ |
| 845 | #define UUID_LEN 16 |
| 846 | void acpigen_write_uuid(const char *uuid) |
| 847 | { |
| 848 | uint8_t buf[UUID_LEN]; |
| 849 | size_t i, order[UUID_LEN] = { 3, 2, 1, 0, 5, 4, 7, 6, |
| 850 | 8, 9, 10, 11, 12, 13, 14, 15 }; |
| 851 | |
| 852 | /* Parse UUID string into bytes */ |
| 853 | if (hexstrtobin(uuid, buf, UUID_LEN) < UUID_LEN) |
| 854 | return; |
| 855 | |
| 856 | /* BufferOp */ |
| 857 | acpigen_emit_byte(0x11); |
| 858 | acpigen_write_len_f(); |
| 859 | |
| 860 | /* Buffer length in bytes */ |
| 861 | acpigen_write_word(UUID_LEN); |
| 862 | |
| 863 | /* Output UUID in expected order */ |
| 864 | for (i = 0; i < UUID_LEN; i++) |
| 865 | acpigen_emit_byte(buf[order[i]]); |
| 866 | |
| 867 | acpigen_pop_len(); |
| 868 | } |