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 | |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 76 | void acpigen_emit_ext_op(uint8_t op) |
| 77 | { |
| 78 | acpigen_emit_byte(EXT_OP_PREFIX); |
| 79 | acpigen_emit_byte(op); |
| 80 | } |
| 81 | |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 82 | void acpigen_emit_word(unsigned int data) |
| 83 | { |
| 84 | acpigen_emit_byte(data & 0xff); |
| 85 | acpigen_emit_byte((data >> 8) & 0xff); |
| 86 | } |
| 87 | |
| 88 | void acpigen_emit_dword(unsigned int data) |
| 89 | { |
| 90 | acpigen_emit_byte(data & 0xff); |
| 91 | acpigen_emit_byte((data >> 8) & 0xff); |
| 92 | acpigen_emit_byte((data >> 16) & 0xff); |
| 93 | acpigen_emit_byte((data >> 24) & 0xff); |
| 94 | } |
| 95 | |
Duncan Laurie | 85d8027 | 2016-07-02 19:53:54 -0700 | [diff] [blame] | 96 | char *acpigen_write_package(int nr_el) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 97 | { |
Duncan Laurie | 85d8027 | 2016-07-02 19:53:54 -0700 | [diff] [blame] | 98 | char *p; |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 99 | acpigen_emit_byte(PACKAGE_OP); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 100 | acpigen_write_len_f(); |
Duncan Laurie | 85d8027 | 2016-07-02 19:53:54 -0700 | [diff] [blame] | 101 | p = acpigen_get_current(); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 102 | acpigen_emit_byte(nr_el); |
Duncan Laurie | 85d8027 | 2016-07-02 19:53:54 -0700 | [diff] [blame] | 103 | return p; |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 104 | } |
| 105 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 106 | void acpigen_write_byte(unsigned int data) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 107 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 108 | acpigen_emit_byte(BYTE_PREFIX); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 109 | acpigen_emit_byte(data & 0xff); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 110 | } |
| 111 | |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 112 | void acpigen_write_word(unsigned int data) |
| 113 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 114 | acpigen_emit_byte(WORD_PREFIX); |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 115 | acpigen_emit_word(data); |
| 116 | } |
| 117 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 118 | void acpigen_write_dword(unsigned int data) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 119 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 120 | acpigen_emit_byte(DWORD_PREFIX); |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 121 | acpigen_emit_dword(data); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 122 | } |
| 123 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 124 | void acpigen_write_qword(uint64_t data) |
Carl-Daniel Hailfinger | d58671c | 2009-02-17 21:38:51 +0000 | [diff] [blame] | 125 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 126 | acpigen_emit_byte(QWORD_PREFIX); |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 127 | acpigen_emit_dword(data & 0xffffffff); |
| 128 | acpigen_emit_dword((data >> 32) & 0xffffffff); |
Carl-Daniel Hailfinger | d58671c | 2009-02-17 21:38:51 +0000 | [diff] [blame] | 129 | } |
| 130 | |
Duncan Laurie | f7c3876 | 2016-05-09 08:20:38 -0700 | [diff] [blame] | 131 | void acpigen_write_zero(void) |
| 132 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 133 | acpigen_emit_byte(ZERO_OP); |
Duncan Laurie | f7c3876 | 2016-05-09 08:20:38 -0700 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | void acpigen_write_one(void) |
| 137 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 138 | acpigen_emit_byte(ONE_OP); |
Duncan Laurie | f7c3876 | 2016-05-09 08:20:38 -0700 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | void acpigen_write_ones(void) |
| 142 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 143 | acpigen_emit_byte(ONES_OP); |
Duncan Laurie | f7c3876 | 2016-05-09 08:20:38 -0700 | [diff] [blame] | 144 | } |
| 145 | |
| 146 | void acpigen_write_integer(uint64_t data) |
| 147 | { |
| 148 | if (data == 0) |
| 149 | acpigen_write_zero(); |
| 150 | else if (data == 1) |
| 151 | acpigen_write_one(); |
| 152 | else if (data <= 0xff) |
| 153 | acpigen_write_byte((unsigned char)data); |
| 154 | else if (data <= 0xffff) |
| 155 | acpigen_write_word((unsigned int)data); |
| 156 | else if (data <= 0xffffffff) |
| 157 | acpigen_write_dword((unsigned int)data); |
| 158 | else |
| 159 | acpigen_write_qword(data); |
| 160 | } |
| 161 | |
| 162 | void acpigen_write_name_zero(const char *name) |
| 163 | { |
| 164 | acpigen_write_name(name); |
| 165 | acpigen_write_one(); |
| 166 | } |
| 167 | |
| 168 | void acpigen_write_name_one(const char *name) |
| 169 | { |
| 170 | acpigen_write_name(name); |
| 171 | acpigen_write_zero(); |
| 172 | } |
| 173 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 174 | void acpigen_write_name_byte(const char *name, uint8_t val) |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 175 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 176 | acpigen_write_name(name); |
| 177 | acpigen_write_byte(val); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 178 | } |
| 179 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 180 | void acpigen_write_name_dword(const char *name, uint32_t val) |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 181 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 182 | acpigen_write_name(name); |
| 183 | acpigen_write_dword(val); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 184 | } |
| 185 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 186 | void acpigen_write_name_qword(const char *name, uint64_t val) |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 187 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 188 | acpigen_write_name(name); |
| 189 | acpigen_write_qword(val); |
Carl-Daniel Hailfinger | d58671c | 2009-02-17 21:38:51 +0000 | [diff] [blame] | 190 | } |
| 191 | |
Duncan Laurie | f7c3876 | 2016-05-09 08:20:38 -0700 | [diff] [blame] | 192 | void acpigen_write_name_integer(const char *name, uint64_t val) |
| 193 | { |
| 194 | acpigen_write_name(name); |
| 195 | acpigen_write_integer(val); |
| 196 | } |
| 197 | |
Duncan Laurie | 56b69aa | 2016-05-09 08:17:02 -0700 | [diff] [blame] | 198 | void acpigen_write_name_string(const char *name, const char *string) |
| 199 | { |
| 200 | acpigen_write_name(name); |
| 201 | acpigen_write_string(string); |
| 202 | } |
| 203 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 204 | void acpigen_emit_stream(const char *data, int size) |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 205 | { |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 206 | int i; |
| 207 | for (i = 0; i < size; i++) { |
| 208 | acpigen_emit_byte(data[i]); |
| 209 | } |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 210 | } |
| 211 | |
Duncan Laurie | 56b69aa | 2016-05-09 08:17:02 -0700 | [diff] [blame] | 212 | void acpigen_emit_string(const char *string) |
| 213 | { |
Jonathan Neuschäfer | 0ba307f | 2016-05-17 17:40:09 +0200 | [diff] [blame] | 214 | acpigen_emit_stream(string, string ? strlen(string) : 0); |
Duncan Laurie | 56b69aa | 2016-05-09 08:17:02 -0700 | [diff] [blame] | 215 | acpigen_emit_byte('\0'); /* NUL */ |
| 216 | } |
| 217 | |
| 218 | void acpigen_write_string(const char *string) |
| 219 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 220 | acpigen_emit_byte(STRING_PREFIX); |
Duncan Laurie | 56b69aa | 2016-05-09 08:17:02 -0700 | [diff] [blame] | 221 | acpigen_emit_string(string); |
| 222 | } |
| 223 | |
Duncan Laurie | 3731903 | 2016-05-26 12:47:05 -0700 | [diff] [blame] | 224 | void acpigen_write_coreboot_hid(enum coreboot_acpi_ids id) |
| 225 | { |
| 226 | char hid[9]; /* CORExxxx */ |
| 227 | |
Duncan Laurie | 02fdb3e | 2016-09-22 14:08:33 -0700 | [diff] [blame] | 228 | snprintf(hid, sizeof(hid), "%.4s%04X", COREBOOT_ACPI_ID, id); |
Duncan Laurie | 3731903 | 2016-05-26 12:47:05 -0700 | [diff] [blame] | 229 | acpigen_write_name_string("_HID", hid); |
| 230 | } |
| 231 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 232 | /* |
| 233 | * The naming conventions for ACPI namespace names are a bit tricky as |
Martin Roth | 0cd338e | 2016-07-29 14:07:30 -0600 | [diff] [blame] | 234 | * each element has to be 4 chars wide ("All names are a fixed 32 bits.") |
| 235 | * and "By convention, when an ASL compiler pads a name shorter than 4 |
| 236 | * characters, it is done so with trailing underscores ('_')". |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 237 | * |
| 238 | * Check sections 5.3, 18.2.2 and 18.4 of ACPI spec 3.0 for details. |
| 239 | */ |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 240 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 241 | static void acpigen_emit_simple_namestring(const char *name) { |
| 242 | int i; |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 243 | char ud[] = "____"; |
| 244 | for (i = 0; i < 4; i++) { |
| 245 | if ((name[i] == '\0') || (name[i] == '.')) { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 246 | acpigen_emit_stream(ud, 4 - i); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 247 | break; |
| 248 | } else { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 249 | acpigen_emit_byte(name[i]); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 250 | } |
| 251 | } |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 252 | } |
| 253 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 254 | static void acpigen_emit_double_namestring(const char *name, int dotpos) { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 255 | acpigen_emit_byte(DUAL_NAME_PREFIX); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 256 | acpigen_emit_simple_namestring(name); |
| 257 | acpigen_emit_simple_namestring(&name[dotpos + 1]); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 258 | } |
| 259 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 260 | static void acpigen_emit_multi_namestring(const char *name) { |
| 261 | int count = 0; |
Stefan Reinauer | 14e2277 | 2010-04-27 06:56:47 +0000 | [diff] [blame] | 262 | unsigned char *pathlen; |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 263 | acpigen_emit_byte(MULTI_NAME_PREFIX); |
| 264 | acpigen_emit_byte(ZERO_OP); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 265 | pathlen = ((unsigned char *) acpigen_get_current()) - 1; |
| 266 | |
| 267 | while (name[0] != '\0') { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 268 | acpigen_emit_simple_namestring(name); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 269 | /* find end or next entity */ |
| 270 | while ((name[0] != '.') && (name[0] != '\0')) |
| 271 | name++; |
| 272 | /* forward to next */ |
| 273 | if (name[0] == '.') |
| 274 | name++; |
| 275 | count++; |
| 276 | } |
| 277 | |
| 278 | pathlen[0] = count; |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 282 | void acpigen_emit_namestring(const char *namepath) { |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 283 | int dotcount = 0, i; |
Myles Watson | 3fe6b70 | 2009-10-09 20:13:43 +0000 | [diff] [blame] | 284 | int dotpos = 0; |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 285 | |
Ronald G. Minnich | be738eb | 2013-03-07 11:05:28 -0600 | [diff] [blame] | 286 | /* We can start with a '\'. */ |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 287 | if (namepath[0] == '\\') { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 288 | acpigen_emit_byte('\\'); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 289 | namepath++; |
| 290 | } |
| 291 | |
Ronald G. Minnich | be738eb | 2013-03-07 11:05:28 -0600 | [diff] [blame] | 292 | /* And there can be any number of '^' */ |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 293 | while (namepath[0] == '^') { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 294 | acpigen_emit_byte('^'); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 295 | namepath++; |
| 296 | } |
| 297 | |
Vladimir Serbinenko | d942ed9 | 2014-08-30 20:44:37 +0200 | [diff] [blame] | 298 | /* If we have only \\ or only ^...^. Then we need to put a null |
| 299 | name (0x00). */ |
Elyes HAOUAS | dbf3067 | 2016-08-21 17:37:15 +0200 | [diff] [blame] | 300 | if (namepath[0] == '\0') { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 301 | acpigen_emit_byte(ZERO_OP); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 302 | return; |
Vladimir Serbinenko | d942ed9 | 2014-08-30 20:44:37 +0200 | [diff] [blame] | 303 | } |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 304 | |
| 305 | i = 0; |
| 306 | while (namepath[i] != '\0') { |
| 307 | if (namepath[i] == '.') { |
| 308 | dotcount++; |
| 309 | dotpos = i; |
| 310 | } |
| 311 | i++; |
| 312 | } |
| 313 | |
| 314 | if (dotcount == 0) { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 315 | acpigen_emit_simple_namestring(namepath); |
Stefan Reinauer | 14e2277 | 2010-04-27 06:56:47 +0000 | [diff] [blame] | 316 | } else if (dotcount == 1) { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 317 | acpigen_emit_double_namestring(namepath, dotpos); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 318 | } else { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 319 | acpigen_emit_multi_namestring(namepath); |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 320 | } |
Rudolf Marek | 3310d75 | 2009-06-21 20:26:13 +0000 | [diff] [blame] | 321 | } |
| 322 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 323 | void acpigen_write_name(const char *name) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 324 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 325 | acpigen_emit_byte(NAME_OP); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 326 | acpigen_emit_namestring(name); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 327 | } |
| 328 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 329 | void acpigen_write_scope(const char *name) |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 330 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 331 | acpigen_emit_byte(SCOPE_OP); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 332 | acpigen_write_len_f(); |
| 333 | acpigen_emit_namestring(name); |
Rudolf Marek | 293b5f5 | 2009-02-01 18:35:15 +0000 | [diff] [blame] | 334 | } |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 335 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 336 | void acpigen_write_processor(u8 cpuindex, u32 pblock_addr, u8 pblock_len) |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 337 | { |
| 338 | /* |
Elyes HAOUAS | 6b72787 | 2016-09-03 08:28:48 +0200 | [diff] [blame] | 339 | Processor (\_PR.CPUcpuindex, cpuindex, pblock_addr, pblock_len) |
| 340 | { |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 341 | */ |
| 342 | char pscope[16]; |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 343 | acpigen_emit_ext_op(PROCESSOR_OP); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 344 | acpigen_write_len_f(); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 345 | |
Elyes HAOUAS | 7d87e76 | 2016-10-03 22:11:07 +0200 | [diff] [blame] | 346 | snprintf(pscope, sizeof(pscope), |
Timothy Pearson | 033bb4b | 2015-02-10 22:21:39 -0600 | [diff] [blame] | 347 | "\\_PR.CP%02d", (unsigned int) cpuindex); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 348 | acpigen_emit_namestring(pscope); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 349 | acpigen_emit_byte(cpuindex); |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 350 | acpigen_emit_dword(pblock_addr); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 351 | acpigen_emit_byte(pblock_len); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 352 | } |
| 353 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 354 | void acpigen_write_empty_PCT(void) |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 355 | { |
| 356 | /* |
Elyes HAOUAS | 6b72787 | 2016-09-03 08:28:48 +0200 | [diff] [blame] | 357 | Name (_PCT, Package (0x02) |
| 358 | { |
| 359 | ResourceTemplate () |
| 360 | { |
| 361 | Register (FFixedHW, |
| 362 | 0x00, // Bit Width |
| 363 | 0x00, // Bit Offset |
| 364 | 0x0000000000000000, // Address |
| 365 | ,) |
| 366 | }, |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 367 | |
Elyes HAOUAS | 6b72787 | 2016-09-03 08:28:48 +0200 | [diff] [blame] | 368 | ResourceTemplate () |
| 369 | { |
| 370 | Register (FFixedHW, |
| 371 | 0x00, // Bit Width |
| 372 | 0x00, // Bit Offset |
| 373 | 0x0000000000000000, // Address |
| 374 | ,) |
| 375 | } |
| 376 | }) |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 377 | */ |
| 378 | static char stream[] = { |
| 379 | 0x08, 0x5F, 0x50, 0x43, 0x54, 0x12, 0x2C, /* 00000030 "0._PCT.," */ |
| 380 | 0x02, 0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, /* 00000038 "........" */ |
| 381 | 0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00000040 "........" */ |
| 382 | 0x00, 0x00, 0x00, 0x00, 0x79, 0x00, 0x11, 0x14, /* 00000048 "....y..." */ |
| 383 | 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F, 0x00, 0x00, /* 00000050 "........" */ |
| 384 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00000058 "........" */ |
| 385 | 0x00, 0x79, 0x00 |
| 386 | }; |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 387 | acpigen_emit_stream(stream, ARRAY_SIZE(stream)); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 388 | } |
| 389 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 390 | void acpigen_write_empty_PTC(void) |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 391 | { |
| 392 | /* |
Elyes HAOUAS | 6b72787 | 2016-09-03 08:28:48 +0200 | [diff] [blame] | 393 | Name (_PTC, Package (0x02) |
| 394 | { |
| 395 | ResourceTemplate () |
| 396 | { |
| 397 | Register (FFixedHW, |
| 398 | 0x00, // Bit Width |
| 399 | 0x00, // Bit Offset |
| 400 | 0x0000000000000000, // Address |
| 401 | ,) |
| 402 | }, |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 403 | |
Elyes HAOUAS | 6b72787 | 2016-09-03 08:28:48 +0200 | [diff] [blame] | 404 | ResourceTemplate () |
| 405 | { |
| 406 | Register (FFixedHW, |
| 407 | 0x00, // Bit Width |
| 408 | 0x00, // Bit Offset |
| 409 | 0x0000000000000000, // Address |
| 410 | ,) |
| 411 | } |
| 412 | }) |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 413 | */ |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 414 | acpi_addr_t addr = { |
| 415 | .space_id = ACPI_ADDRESS_SPACE_FIXED, |
| 416 | .bit_width = 0, |
| 417 | .bit_offset = 0, |
zbao | ee8a9f6c | 2012-05-29 14:59:38 +0800 | [diff] [blame] | 418 | { |
| 419 | .resv = 0 |
| 420 | }, |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 421 | .addrl = 0, |
| 422 | .addrh = 0, |
| 423 | }; |
| 424 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 425 | acpigen_write_name("_PTC"); |
| 426 | acpigen_write_package(2); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 427 | |
| 428 | /* ControlRegister */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 429 | acpigen_write_resourcetemplate_header(); |
| 430 | acpigen_write_register(&addr); |
| 431 | acpigen_write_resourcetemplate_footer(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 432 | |
| 433 | /* StatusRegister */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 434 | acpigen_write_resourcetemplate_header(); |
| 435 | acpigen_write_register(&addr); |
| 436 | acpigen_write_resourcetemplate_footer(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 437 | |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 438 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 439 | } |
| 440 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 441 | void acpigen_write_method(const char *name, int nargs) |
Vladimir Serbinenko | 80fb8ed | 2014-11-05 10:28:28 +0100 | [diff] [blame] | 442 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 443 | acpigen_emit_byte(METHOD_OP); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 444 | acpigen_write_len_f(); |
| 445 | acpigen_emit_namestring(name); |
| 446 | acpigen_emit_byte(nargs & 7); |
Vladimir Serbinenko | 80fb8ed | 2014-11-05 10:28:28 +0100 | [diff] [blame] | 447 | } |
| 448 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 449 | void acpigen_write_device(const char *name) |
Vladimir Serbinenko | 663be6e | 2014-11-05 21:29:45 +0100 | [diff] [blame] | 450 | { |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 451 | acpigen_emit_ext_op(DEVICE_OP); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 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); |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 462 | acpigen_emit_byte(RETURN_OP); |
Duncan Laurie | abe2de8 | 2016-05-09 11:08:46 -0700 | [diff] [blame] | 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 | /* |
Elyes HAOUAS | 6b72787 | 2016-09-03 08:28:48 +0200 | [diff] [blame] | 473 | Method (_PPC, 0, NotSerialized) |
| 474 | { |
| 475 | Return (nr) |
| 476 | } |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 477 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 478 | acpigen_write_method("_PPC", 0); |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 479 | acpigen_emit_byte(RETURN_OP); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 480 | /* arg */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 481 | acpigen_write_byte(nr); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 482 | acpigen_pop_len(); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 483 | } |
| 484 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 485 | /* |
| 486 | * Generates a func with max supported P-states saved |
| 487 | * in the variable PPCM. |
| 488 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 489 | void acpigen_write_PPC_NVS(void) |
Duncan Laurie | 0eefa00 | 2012-07-16 12:11:53 -0700 | [diff] [blame] | 490 | { |
| 491 | /* |
Elyes HAOUAS | 6b72787 | 2016-09-03 08:28:48 +0200 | [diff] [blame] | 492 | Method (_PPC, 0, NotSerialized) |
| 493 | { |
| 494 | Return (PPCM) |
| 495 | } |
Duncan Laurie | 0eefa00 | 2012-07-16 12:11:53 -0700 | [diff] [blame] | 496 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 497 | acpigen_write_method("_PPC", 0); |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 498 | acpigen_emit_byte(RETURN_OP); |
Duncan Laurie | 0eefa00 | 2012-07-16 12:11:53 -0700 | [diff] [blame] | 499 | /* arg */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 500 | acpigen_emit_namestring("PPCM"); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 501 | acpigen_pop_len(); |
Duncan Laurie | 0eefa00 | 2012-07-16 12:11:53 -0700 | [diff] [blame] | 502 | } |
| 503 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 504 | void acpigen_write_TPC(const char *gnvs_tpc_limit) |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 505 | { |
| 506 | /* |
Elyes HAOUAS | 6b72787 | 2016-09-03 08:28:48 +0200 | [diff] [blame] | 507 | // Sample _TPC method |
| 508 | Method (_TPC, 0, NotSerialized) |
| 509 | { |
| 510 | Return (\TLVL) |
| 511 | } |
| 512 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 513 | acpigen_write_method("_TPC", 0); |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 514 | acpigen_emit_byte(RETURN_OP); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 515 | acpigen_emit_namestring(gnvs_tpc_limit); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 516 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 517 | } |
| 518 | |
Duncan Laurie | abe2de8 | 2016-05-09 11:08:46 -0700 | [diff] [blame] | 519 | void acpigen_write_PRW(u32 wake, u32 level) |
| 520 | { |
| 521 | /* |
| 522 | * Name (_PRW, Package () { wake, level } |
| 523 | */ |
| 524 | acpigen_write_name("_PRW"); |
| 525 | acpigen_write_package(2); |
| 526 | acpigen_write_integer(wake); |
| 527 | acpigen_write_integer(level); |
| 528 | acpigen_pop_len(); |
| 529 | } |
| 530 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 531 | void acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, |
Stefan Reinauer | f96c2d9 | 2009-04-22 16:23:47 +0000 | [diff] [blame] | 532 | u32 busmLat, u32 control, u32 status) |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 533 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 534 | acpigen_write_package(6); |
| 535 | acpigen_write_dword(coreFreq); |
| 536 | acpigen_write_dword(power); |
| 537 | acpigen_write_dword(transLat); |
| 538 | acpigen_write_dword(busmLat); |
| 539 | acpigen_write_dword(control); |
| 540 | acpigen_write_dword(status); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 541 | acpigen_pop_len(); |
Stefan Reinauer | d4bacf9 | 2012-05-02 16:38:47 -0700 | [diff] [blame] | 542 | |
| 543 | printk(BIOS_DEBUG, "PSS: %uMHz power %u control 0x%x status 0x%x\n", |
| 544 | coreFreq, power, control, status); |
Rudolf Marek | f997b55 | 2009-02-14 15:40:23 +0000 | [diff] [blame] | 545 | } |
Patrick Georgi | df444bf | 2009-04-21 20:34:36 +0000 | [diff] [blame] | 546 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 547 | void acpigen_write_PSD_package(u32 domain, u32 numprocs, PSD_coord coordtype) |
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 | acpigen_write_name("_PSD"); |
| 550 | acpigen_write_package(1); |
| 551 | acpigen_write_package(5); |
| 552 | acpigen_write_byte(5); // 5 values |
| 553 | acpigen_write_byte(0); // revision 0 |
| 554 | acpigen_write_dword(domain); |
| 555 | acpigen_write_dword(coordtype); |
| 556 | acpigen_write_dword(numprocs); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 557 | acpigen_pop_len(); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 558 | acpigen_pop_len(); |
Patrick Georgi | df444bf | 2009-04-21 20:34:36 +0000 | [diff] [blame] | 559 | } |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 560 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 561 | void acpigen_write_CST_package_entry(acpi_cstate_t *cstate) |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 562 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 563 | acpigen_write_package(4); |
| 564 | acpigen_write_resourcetemplate_header(); |
Stefan Reinauer | 4cc8c70 | 2012-04-27 21:34:16 +0200 | [diff] [blame] | 565 | acpigen_write_register(&cstate->resource); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 566 | acpigen_write_resourcetemplate_footer(); |
| 567 | acpigen_write_dword(cstate->ctype); |
| 568 | acpigen_write_dword(cstate->latency); |
| 569 | acpigen_write_dword(cstate->power); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 570 | acpigen_pop_len(); |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 571 | } |
| 572 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 573 | void acpigen_write_CST_package(acpi_cstate_t *cstate, int nentries) |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 574 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 575 | int i; |
| 576 | acpigen_write_name("_CST"); |
| 577 | acpigen_write_package(nentries+1); |
| 578 | acpigen_write_dword(nentries); |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 579 | |
| 580 | for (i = 0; i < nentries; i++) |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 581 | acpigen_write_CST_package_entry(cstate + i); |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 582 | |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 583 | acpigen_pop_len(); |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 584 | } |
| 585 | |
Timothy Pearson | 83abd81 | 2015-06-08 19:35:06 -0500 | [diff] [blame] | 586 | void acpigen_write_CSD_package(u32 domain, u32 numprocs, CSD_coord coordtype, u32 index) |
| 587 | { |
| 588 | acpigen_write_name("_CSD"); |
| 589 | acpigen_write_package(1); |
| 590 | acpigen_write_package(6); |
| 591 | acpigen_write_byte(6); // 6 values |
| 592 | acpigen_write_byte(0); // revision 0 |
| 593 | acpigen_write_dword(domain); |
| 594 | acpigen_write_dword(coordtype); |
| 595 | acpigen_write_dword(numprocs); |
| 596 | acpigen_write_dword(index); |
| 597 | acpigen_pop_len(); |
| 598 | acpigen_pop_len(); |
| 599 | } |
| 600 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 601 | void acpigen_write_TSS_package(int entries, acpi_tstate_t *tstate_list) |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 602 | { |
| 603 | /* |
Elyes HAOUAS | 6b72787 | 2016-09-03 08:28:48 +0200 | [diff] [blame] | 604 | Sample _TSS package with 100% and 50% duty cycles |
| 605 | Name (_TSS, Package (0x02) |
| 606 | { |
| 607 | Package(){100, 1000, 0, 0x00, 0) |
| 608 | Package(){50, 520, 0, 0x18, 0) |
| 609 | }) |
| 610 | */ |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 611 | int i; |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 612 | acpi_tstate_t *tstate = tstate_list; |
| 613 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 614 | acpigen_write_name("_TSS"); |
| 615 | acpigen_write_package(entries); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 616 | |
| 617 | for (i = 0; i < entries; i++) { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 618 | acpigen_write_package(5); |
| 619 | acpigen_write_dword(tstate->percent); |
| 620 | acpigen_write_dword(tstate->power); |
| 621 | acpigen_write_dword(tstate->latency); |
| 622 | acpigen_write_dword(tstate->control); |
| 623 | acpigen_write_dword(tstate->status); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 624 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 625 | tstate++; |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 626 | } |
| 627 | |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 628 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 629 | } |
| 630 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 631 | void acpigen_write_TSD_package(u32 domain, u32 numprocs, PSD_coord coordtype) |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 632 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 633 | acpigen_write_name("_TSD"); |
| 634 | acpigen_write_package(1); |
| 635 | acpigen_write_package(5); |
| 636 | acpigen_write_byte(5); // 5 values |
| 637 | acpigen_write_byte(0); // revision 0 |
| 638 | acpigen_write_dword(domain); |
| 639 | acpigen_write_dword(coordtype); |
| 640 | acpigen_write_dword(numprocs); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 641 | acpigen_pop_len(); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 642 | acpigen_pop_len(); |
Stefan Reinauer | 39205c6 | 2012-04-27 21:49:28 +0200 | [diff] [blame] | 643 | } |
| 644 | |
| 645 | |
| 646 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 647 | void acpigen_write_mem32fixed(int readwrite, u32 base, u32 size) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 648 | { |
| 649 | /* |
Elyes HAOUAS | 2078e75 | 2016-08-21 10:41:44 +0200 | [diff] [blame] | 650 | * ACPI 4.0 section 6.4.3.4: 32-Bit Fixed Memory Range Descriptor |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 651 | * Byte 0: |
| 652 | * Bit7 : 1 => big item |
| 653 | * Bit6-0: 0000110 (0x6) => 32-bit fixed memory |
| 654 | */ |
| 655 | acpigen_emit_byte(0x86); |
| 656 | /* Byte 1+2: length (0x0009) */ |
| 657 | acpigen_emit_byte(0x09); |
| 658 | acpigen_emit_byte(0x00); |
| 659 | /* bit1-7 are ignored */ |
| 660 | acpigen_emit_byte(readwrite ? 0x01 : 0x00); |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 661 | acpigen_emit_dword(base); |
| 662 | acpigen_emit_dword(size); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 663 | } |
| 664 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 665 | void acpigen_write_register(acpi_addr_t *addr) |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 666 | { |
Stefan Reinauer | 4cc8c70 | 2012-04-27 21:34:16 +0200 | [diff] [blame] | 667 | acpigen_emit_byte(0x82); /* Register Descriptor */ |
| 668 | acpigen_emit_byte(0x0c); /* Register Length 7:0 */ |
| 669 | acpigen_emit_byte(0x00); /* Register Length 15:8 */ |
| 670 | acpigen_emit_byte(addr->space_id); /* Address Space ID */ |
| 671 | acpigen_emit_byte(addr->bit_width); /* Register Bit Width */ |
| 672 | acpigen_emit_byte(addr->bit_offset); /* Register Bit Offset */ |
| 673 | acpigen_emit_byte(addr->resv); /* Register Access Size */ |
Duncan Laurie | 9ccae75 | 2016-05-09 07:43:19 -0700 | [diff] [blame] | 674 | acpigen_emit_dword(addr->addrl); /* Register Address Low */ |
| 675 | acpigen_emit_dword(addr->addrh); /* Register Address High */ |
Sven Schnelle | 0b86c76 | 2011-10-21 21:46:47 +0200 | [diff] [blame] | 676 | } |
| 677 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 678 | void acpigen_write_irq(u16 mask) |
Vladimir Serbinenko | 20ea040 | 2014-02-15 18:57:17 +0100 | [diff] [blame] | 679 | { |
| 680 | /* |
Elyes HAOUAS | 2078e75 | 2016-08-21 10:41:44 +0200 | [diff] [blame] | 681 | * ACPI 3.0b section 6.4.2.1: IRQ Descriptor |
Vladimir Serbinenko | 20ea040 | 2014-02-15 18:57:17 +0100 | [diff] [blame] | 682 | * Byte 0: |
| 683 | * Bit7 : 0 => small item |
| 684 | * Bit6-3: 0100 (0x4) => IRQ port descriptor |
| 685 | * Bit2-0: 010 (0x2) => 2 Bytes long |
| 686 | */ |
| 687 | acpigen_emit_byte(0x22); |
| 688 | acpigen_emit_byte(mask & 0xff); |
| 689 | acpigen_emit_byte((mask >> 8) & 0xff); |
Vladimir Serbinenko | 20ea040 | 2014-02-15 18:57:17 +0100 | [diff] [blame] | 690 | } |
| 691 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 692 | 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] | 693 | { |
| 694 | /* |
Elyes HAOUAS | 2078e75 | 2016-08-21 10:41:44 +0200 | [diff] [blame] | 695 | * ACPI 4.0 section 6.4.2.6: I/O Port Descriptor |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 696 | * Byte 0: |
| 697 | * Bit7 : 0 => small item |
| 698 | * Bit6-3: 1000 (0x8) => I/O port descriptor |
| 699 | * Bit2-0: 111 (0x7) => 7 Bytes long |
| 700 | */ |
| 701 | acpigen_emit_byte(0x47); |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 702 | /* Does the device decode all 16 or just 10 bits? */ |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 703 | /* bit1-7 are ignored */ |
| 704 | acpigen_emit_byte(decode16 ? 0x01 : 0x00); |
| 705 | /* minimum base address the device may be configured for */ |
| 706 | acpigen_emit_byte(min & 0xff); |
| 707 | acpigen_emit_byte((min >> 8) & 0xff); |
| 708 | /* maximum base address the device may be configured for */ |
| 709 | acpigen_emit_byte(max & 0xff); |
| 710 | acpigen_emit_byte((max >> 8) & 0xff); |
| 711 | /* alignment for min base */ |
| 712 | acpigen_emit_byte(align & 0xff); |
| 713 | acpigen_emit_byte(len & 0xff); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 714 | } |
| 715 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 716 | void acpigen_write_resourcetemplate_header(void) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 717 | { |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 718 | /* |
| 719 | * A ResourceTemplate() is a Buffer() with a |
| 720 | * (Byte|Word|DWord) containing the length, followed by one or more |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 721 | * resource items, terminated by the end tag. |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 722 | * (small item 0xf, len 1) |
| 723 | */ |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 724 | acpigen_emit_byte(BUFFER_OP); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 725 | acpigen_write_len_f(); |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 726 | acpigen_emit_byte(WORD_PREFIX); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 727 | len_stack[ltop++] = acpigen_get_current(); |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 728 | acpigen_emit_byte(0x00); |
| 729 | acpigen_emit_byte(0x00); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 730 | } |
| 731 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 732 | void acpigen_write_resourcetemplate_footer(void) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 733 | { |
| 734 | char *p = len_stack[--ltop]; |
Vladimir Serbinenko | 9acc1e8 | 2014-11-09 03:37:28 +0100 | [diff] [blame] | 735 | int len; |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 736 | /* |
| 737 | * end tag (acpi 4.0 Section 6.4.2.8) |
| 738 | * 0x79 <checksum> |
| 739 | * 0x00 is treated as a good checksum according to the spec |
| 740 | * and is what iasl generates. |
| 741 | */ |
Vladimir Serbinenko | 9acc1e8 | 2014-11-09 03:37:28 +0100 | [diff] [blame] | 742 | acpigen_emit_byte(0x79); |
| 743 | acpigen_emit_byte(0x00); |
| 744 | |
Martin Roth | e369010 | 2016-01-06 15:21:02 -0700 | [diff] [blame] | 745 | len = gencurrent - p; |
Vladimir Serbinenko | 9acc1e8 | 2014-11-09 03:37:28 +0100 | [diff] [blame] | 746 | |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 747 | /* patch len word */ |
Vladimir Serbinenko | 9acc1e8 | 2014-11-09 03:37:28 +0100 | [diff] [blame] | 748 | p[0] = len & 0xff; |
| 749 | p[1] = (len >> 8) & 0xff; |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 750 | /* patch len field */ |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 751 | acpigen_pop_len(); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 752 | } |
| 753 | |
| 754 | static void acpigen_add_mainboard_rsvd_mem32(void *gp, struct device *dev, |
| 755 | struct resource *res) |
| 756 | { |
| 757 | acpigen_write_mem32fixed(0, res->base, res->size); |
| 758 | } |
| 759 | |
| 760 | static void acpigen_add_mainboard_rsvd_io(void *gp, struct device *dev, |
| 761 | struct resource *res) |
| 762 | { |
| 763 | resource_t base = res->base; |
| 764 | resource_t size = res->size; |
| 765 | while (size > 0) { |
| 766 | resource_t sz = size > 255 ? 255 : size; |
| 767 | acpigen_write_io16(base, base, 0, sz, 1); |
| 768 | size -= sz; |
| 769 | base += sz; |
| 770 | } |
| 771 | } |
| 772 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 773 | void acpigen_write_mainboard_resource_template(void) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 774 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 775 | acpigen_write_resourcetemplate_header(); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 776 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 777 | /* Add reserved memory ranges. */ |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 778 | search_global_resources( |
| 779 | IORESOURCE_MEM | IORESOURCE_RESERVE, |
| 780 | IORESOURCE_MEM | IORESOURCE_RESERVE, |
| 781 | acpigen_add_mainboard_rsvd_mem32, 0); |
| 782 | |
Paul Menzel | 0f4c0e2 | 2013-02-22 12:33:08 +0100 | [diff] [blame] | 783 | /* Add reserved io ranges. */ |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 784 | search_global_resources( |
| 785 | IORESOURCE_IO | IORESOURCE_RESERVE, |
| 786 | IORESOURCE_IO | IORESOURCE_RESERVE, |
| 787 | acpigen_add_mainboard_rsvd_io, 0); |
| 788 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 789 | acpigen_write_resourcetemplate_footer(); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 790 | } |
| 791 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 792 | void acpigen_write_mainboard_resources(const char *scope, const char *name) |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 793 | { |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 794 | acpigen_write_scope(scope); |
| 795 | acpigen_write_name(name); |
| 796 | acpigen_write_mainboard_resource_template(); |
Vladimir Serbinenko | a09f4db | 2014-11-09 03:32:58 +0100 | [diff] [blame] | 797 | acpigen_pop_len(); |
Tobias Diedrich | 0fe6e9a | 2010-11-17 16:27:06 +0000 | [diff] [blame] | 798 | } |
Vladimir Serbinenko | 8ecdc9e | 2014-02-15 18:59:40 +0100 | [diff] [blame] | 799 | |
| 800 | static int hex2bin(const char c) |
| 801 | { |
| 802 | if (c >= 'A' && c <= 'F') |
| 803 | return c - 'A' + 10; |
| 804 | if (c >= 'a' && c <= 'f') |
| 805 | return c - 'a' + 10; |
| 806 | return c - '0'; |
| 807 | } |
| 808 | |
Vladimir Serbinenko | 9bb5c5c | 2014-11-09 03:51:32 +0100 | [diff] [blame] | 809 | void acpigen_emit_eisaid(const char *eisaid) |
Vladimir Serbinenko | 8ecdc9e | 2014-02-15 18:59:40 +0100 | [diff] [blame] | 810 | { |
| 811 | u32 compact = 0; |
| 812 | |
| 813 | /* Clamping individual values would be better but |
| 814 | there is a disagreement over what is a valid |
| 815 | EISA id, so accept anything and don't clamp, |
| 816 | parent code should create a valid EISAid. |
| 817 | */ |
| 818 | compact |= (eisaid[0] - 'A' + 1) << 26; |
| 819 | compact |= (eisaid[1] - 'A' + 1) << 21; |
| 820 | compact |= (eisaid[2] - 'A' + 1) << 16; |
| 821 | compact |= hex2bin(eisaid[3]) << 12; |
| 822 | compact |= hex2bin(eisaid[4]) << 8; |
| 823 | compact |= hex2bin(eisaid[5]) << 4; |
| 824 | compact |= hex2bin(eisaid[6]); |
| 825 | |
| 826 | acpigen_emit_byte(0xc); |
| 827 | acpigen_emit_byte((compact >> 24) & 0xff); |
| 828 | acpigen_emit_byte((compact >> 16) & 0xff); |
| 829 | acpigen_emit_byte((compact >> 8) & 0xff); |
| 830 | acpigen_emit_byte(compact & 0xff); |
Vladimir Serbinenko | 8ecdc9e | 2014-02-15 18:59:40 +0100 | [diff] [blame] | 831 | } |
Duncan Laurie | 3829f23 | 2016-05-09 11:08:46 -0700 | [diff] [blame] | 832 | |
| 833 | /* |
| 834 | * ToUUID(uuid) |
| 835 | * |
| 836 | * ACPI 6.1 Section 19.6.136 table 19-385 defines a special output |
| 837 | * order for the bytes that make up a UUID Buffer object. |
| 838 | * UUID byte order for input: |
| 839 | * aabbccdd-eeff-gghh-iijj-kkllmmnnoopp |
| 840 | * UUID byte order for output: |
| 841 | * ddccbbaa-ffee-hhgg-iijj-kkllmmnnoopp |
| 842 | */ |
| 843 | #define UUID_LEN 16 |
| 844 | void acpigen_write_uuid(const char *uuid) |
| 845 | { |
| 846 | uint8_t buf[UUID_LEN]; |
| 847 | size_t i, order[UUID_LEN] = { 3, 2, 1, 0, 5, 4, 7, 6, |
| 848 | 8, 9, 10, 11, 12, 13, 14, 15 }; |
| 849 | |
| 850 | /* Parse UUID string into bytes */ |
| 851 | if (hexstrtobin(uuid, buf, UUID_LEN) < UUID_LEN) |
| 852 | return; |
| 853 | |
| 854 | /* BufferOp */ |
Furquan Shaikh | e4e9b94 | 2016-10-20 23:09:05 -0700 | [diff] [blame^] | 855 | acpigen_emit_byte(BUFFER_OP); |
Duncan Laurie | 3829f23 | 2016-05-09 11:08:46 -0700 | [diff] [blame] | 856 | acpigen_write_len_f(); |
| 857 | |
| 858 | /* Buffer length in bytes */ |
| 859 | acpigen_write_word(UUID_LEN); |
| 860 | |
| 861 | /* Output UUID in expected order */ |
| 862 | for (i = 0; i < UUID_LEN; i++) |
| 863 | acpigen_emit_byte(buf[order[i]]); |
| 864 | |
| 865 | acpigen_pop_len(); |
| 866 | } |