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1 | 6515b203 | bellard | /*
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2 | 6515b203 | bellard | * ACPI implementation
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3 | 5fafdf24 | ths | *
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4 | 6515b203 | bellard | * Copyright (c) 2006 Fabrice Bellard
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5 | 5fafdf24 | ths | *
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6 | 6515b203 | bellard | * This library is free software; you can redistribute it and/or
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7 | 6515b203 | bellard | * modify it under the terms of the GNU Lesser General Public
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8 | 6515b203 | bellard | * License version 2 as published by the Free Software Foundation.
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9 | 6515b203 | bellard | *
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10 | 6515b203 | bellard | * This library is distributed in the hope that it will be useful,
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11 | 6515b203 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | 6515b203 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 | 6515b203 | bellard | * Lesser General Public License for more details.
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14 | 6515b203 | bellard | *
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15 | 6515b203 | bellard | * You should have received a copy of the GNU Lesser General Public
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16 | 8167ee88 | Blue Swirl | * License along with this library; if not, see <http://www.gnu.org/licenses/>
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17 | 6b620ca3 | Paolo Bonzini | *
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18 | 6b620ca3 | Paolo Bonzini | * Contributions after 2012-01-13 are licensed under the terms of the
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19 | 6b620ca3 | Paolo Bonzini | * GNU GPL, version 2 or (at your option) any later version.
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20 | 6515b203 | bellard | */
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21 | 04dc308f | Isaku Yamahata | #include "sysemu.h" |
22 | 87ecb68b | pbrook | #include "hw.h" |
23 | 87ecb68b | pbrook | #include "pc.h" |
24 | 990b150e | Isaku Yamahata | #include "acpi.h" |
25 | 25df49f6 | Luiz Capitulino | #include "monitor.h" |
26 | 6515b203 | bellard | |
27 | 104bf02e | Michael Tokarev | struct acpi_table_header {
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28 | 104bf02e | Michael Tokarev | uint16_t _length; /* our length, not actual part of the hdr */
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29 | 104bf02e | Michael Tokarev | /* XXX why we have 2 length fields here? */
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30 | 104bf02e | Michael Tokarev | char sig[4]; /* ACPI signature (4 ASCII characters) */ |
31 | 8a92ea2f | aliguori | uint32_t length; /* Length of table, in bytes, including header */
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32 | 8a92ea2f | aliguori | uint8_t revision; /* ACPI Specification minor version # */
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33 | 8a92ea2f | aliguori | uint8_t checksum; /* To make sum of entire table == 0 */
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34 | 104bf02e | Michael Tokarev | char oem_id[6]; /* OEM identification */ |
35 | 104bf02e | Michael Tokarev | char oem_table_id[8]; /* OEM table identification */ |
36 | 8a92ea2f | aliguori | uint32_t oem_revision; /* OEM revision number */
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37 | 104bf02e | Michael Tokarev | char asl_compiler_id[4]; /* ASL compiler vendor ID */ |
38 | 8a92ea2f | aliguori | uint32_t asl_compiler_revision; /* ASL compiler revision number */
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39 | 541dc0d4 | Stefan Weil | } QEMU_PACKED; |
40 | 8a92ea2f | aliguori | |
41 | 104bf02e | Michael Tokarev | #define ACPI_TABLE_HDR_SIZE sizeof(struct acpi_table_header) |
42 | 104bf02e | Michael Tokarev | #define ACPI_TABLE_PFX_SIZE sizeof(uint16_t) /* size of the extra prefix */ |
43 | 104bf02e | Michael Tokarev | |
44 | 104bf02e | Michael Tokarev | static const char dfl_hdr[ACPI_TABLE_HDR_SIZE] = |
45 | 104bf02e | Michael Tokarev | "\0\0" /* fake _length (2) */ |
46 | 104bf02e | Michael Tokarev | "QEMU\0\0\0\0\1\0" /* sig (4), len(4), revno (1), csum (1) */ |
47 | 104bf02e | Michael Tokarev | "QEMUQEQEMUQEMU\1\0\0\0" /* OEM id (6), table (8), revno (4) */ |
48 | 104bf02e | Michael Tokarev | "QEMU\1\0\0\0" /* ASL compiler ID (4), version (4) */ |
49 | 104bf02e | Michael Tokarev | ; |
50 | 104bf02e | Michael Tokarev | |
51 | 8a92ea2f | aliguori | char *acpi_tables;
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52 | 8a92ea2f | aliguori | size_t acpi_tables_len; |
53 | 8a92ea2f | aliguori | |
54 | 8a92ea2f | aliguori | static int acpi_checksum(const uint8_t *data, int len) |
55 | 8a92ea2f | aliguori | { |
56 | 8a92ea2f | aliguori | int sum, i;
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57 | 8a92ea2f | aliguori | sum = 0;
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58 | 104bf02e | Michael Tokarev | for (i = 0; i < len; i++) { |
59 | 8a92ea2f | aliguori | sum += data[i]; |
60 | 104bf02e | Michael Tokarev | } |
61 | 8a92ea2f | aliguori | return (-sum) & 0xff; |
62 | 8a92ea2f | aliguori | } |
63 | 8a92ea2f | aliguori | |
64 | 104bf02e | Michael Tokarev | /* XXX fixme: this function uses obsolete argument parsing interface */
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65 | 8a92ea2f | aliguori | int acpi_table_add(const char *t) |
66 | 8a92ea2f | aliguori | { |
67 | 8a92ea2f | aliguori | char buf[1024], *p, *f; |
68 | 8a92ea2f | aliguori | unsigned long val; |
69 | 104bf02e | Michael Tokarev | size_t len, start, allen; |
70 | 104bf02e | Michael Tokarev | bool has_header;
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71 | 104bf02e | Michael Tokarev | int changed;
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72 | 104bf02e | Michael Tokarev | int r;
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73 | 104bf02e | Michael Tokarev | struct acpi_table_header hdr;
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74 | 8a92ea2f | aliguori | |
75 | 104bf02e | Michael Tokarev | r = 0;
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76 | 104bf02e | Michael Tokarev | r |= get_param_value(buf, sizeof(buf), "data", t) ? 1 : 0; |
77 | 104bf02e | Michael Tokarev | r |= get_param_value(buf, sizeof(buf), "file", t) ? 2 : 0; |
78 | 104bf02e | Michael Tokarev | switch (r) {
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79 | 104bf02e | Michael Tokarev | case 0: |
80 | 104bf02e | Michael Tokarev | buf[0] = '\0'; |
81 | 104bf02e | Michael Tokarev | /* fallthrough for default behavior */
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82 | 104bf02e | Michael Tokarev | case 1: |
83 | 104bf02e | Michael Tokarev | has_header = false;
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84 | 104bf02e | Michael Tokarev | break;
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85 | 104bf02e | Michael Tokarev | case 2: |
86 | 104bf02e | Michael Tokarev | has_header = true;
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87 | 104bf02e | Michael Tokarev | break;
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88 | 104bf02e | Michael Tokarev | default:
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89 | 104bf02e | Michael Tokarev | fprintf(stderr, "acpitable: both data and file are specified\n");
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90 | 104bf02e | Michael Tokarev | return -1; |
91 | 104bf02e | Michael Tokarev | } |
92 | 104bf02e | Michael Tokarev | |
93 | 104bf02e | Michael Tokarev | if (!acpi_tables) {
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94 | 104bf02e | Michael Tokarev | allen = sizeof(uint16_t);
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95 | 7267c094 | Anthony Liguori | acpi_tables = g_malloc0(allen); |
96 | 8a92ea2f | aliguori | } else {
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97 | 104bf02e | Michael Tokarev | allen = acpi_tables_len; |
98 | 104bf02e | Michael Tokarev | } |
99 | 104bf02e | Michael Tokarev | |
100 | 104bf02e | Michael Tokarev | start = allen; |
101 | 7267c094 | Anthony Liguori | acpi_tables = g_realloc(acpi_tables, start + ACPI_TABLE_HDR_SIZE); |
102 | 104bf02e | Michael Tokarev | allen += has_header ? ACPI_TABLE_PFX_SIZE : ACPI_TABLE_HDR_SIZE; |
103 | 104bf02e | Michael Tokarev | |
104 | 104bf02e | Michael Tokarev | /* now read in the data files, reallocating buffer as needed */
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105 | 104bf02e | Michael Tokarev | |
106 | 104bf02e | Michael Tokarev | for (f = strtok(buf, ":"); f; f = strtok(NULL, ":")) { |
107 | 104bf02e | Michael Tokarev | int fd = open(f, O_RDONLY);
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108 | 104bf02e | Michael Tokarev | |
109 | 104bf02e | Michael Tokarev | if (fd < 0) { |
110 | 104bf02e | Michael Tokarev | fprintf(stderr, "can't open file %s: %s\n", f, strerror(errno));
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111 | 104bf02e | Michael Tokarev | return -1; |
112 | 104bf02e | Michael Tokarev | } |
113 | 104bf02e | Michael Tokarev | |
114 | 104bf02e | Michael Tokarev | for (;;) {
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115 | 104bf02e | Michael Tokarev | char data[8192]; |
116 | 104bf02e | Michael Tokarev | r = read(fd, data, sizeof(data));
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117 | 104bf02e | Michael Tokarev | if (r == 0) { |
118 | 104bf02e | Michael Tokarev | break;
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119 | 104bf02e | Michael Tokarev | } else if (r > 0) { |
120 | 7267c094 | Anthony Liguori | acpi_tables = g_realloc(acpi_tables, allen + r); |
121 | 104bf02e | Michael Tokarev | memcpy(acpi_tables + allen, data, r); |
122 | 104bf02e | Michael Tokarev | allen += r; |
123 | 104bf02e | Michael Tokarev | } else if (errno != EINTR) { |
124 | 104bf02e | Michael Tokarev | fprintf(stderr, "can't read file %s: %s\n",
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125 | 104bf02e | Michael Tokarev | f, strerror(errno)); |
126 | 104bf02e | Michael Tokarev | close(fd); |
127 | 104bf02e | Michael Tokarev | return -1; |
128 | 104bf02e | Michael Tokarev | } |
129 | 104bf02e | Michael Tokarev | } |
130 | 104bf02e | Michael Tokarev | |
131 | 104bf02e | Michael Tokarev | close(fd); |
132 | 104bf02e | Michael Tokarev | } |
133 | 104bf02e | Michael Tokarev | |
134 | 104bf02e | Michael Tokarev | /* now fill in the header fields */
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135 | 104bf02e | Michael Tokarev | |
136 | 104bf02e | Michael Tokarev | f = acpi_tables + start; /* start of the table */
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137 | 104bf02e | Michael Tokarev | changed = 0;
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138 | 104bf02e | Michael Tokarev | |
139 | 104bf02e | Michael Tokarev | /* copy the header to temp place to align the fields */
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140 | 104bf02e | Michael Tokarev | memcpy(&hdr, has_header ? f : dfl_hdr, ACPI_TABLE_HDR_SIZE); |
141 | 104bf02e | Michael Tokarev | |
142 | 104bf02e | Michael Tokarev | /* length of the table minus our prefix */
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143 | 104bf02e | Michael Tokarev | len = allen - start - ACPI_TABLE_PFX_SIZE; |
144 | 104bf02e | Michael Tokarev | |
145 | 104bf02e | Michael Tokarev | hdr._length = cpu_to_le16(len); |
146 | 104bf02e | Michael Tokarev | |
147 | 104bf02e | Michael Tokarev | if (get_param_value(buf, sizeof(buf), "sig", t)) { |
148 | 3cda3462 | Jim Meyering | /* strncpy is justified: the field need not be NUL-terminated. */
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149 | 3cda3462 | Jim Meyering | strncpy(hdr.sig, buf, sizeof(hdr.sig));
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150 | 104bf02e | Michael Tokarev | ++changed; |
151 | 104bf02e | Michael Tokarev | } |
152 | 104bf02e | Michael Tokarev | |
153 | 104bf02e | Michael Tokarev | /* length of the table including header, in bytes */
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154 | 104bf02e | Michael Tokarev | if (has_header) {
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155 | 104bf02e | Michael Tokarev | /* check if actual length is correct */
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156 | 104bf02e | Michael Tokarev | val = le32_to_cpu(hdr.length); |
157 | 104bf02e | Michael Tokarev | if (val != len) {
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158 | 104bf02e | Michael Tokarev | fprintf(stderr, |
159 | 104bf02e | Michael Tokarev | "warning: acpitable has wrong length,"
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160 | 104bf02e | Michael Tokarev | " header says %lu, actual size %zu bytes\n",
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161 | 104bf02e | Michael Tokarev | val, len); |
162 | 104bf02e | Michael Tokarev | ++changed; |
163 | 104bf02e | Michael Tokarev | } |
164 | 8a92ea2f | aliguori | } |
165 | 104bf02e | Michael Tokarev | /* we may avoid putting length here if has_header is true */
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166 | 104bf02e | Michael Tokarev | hdr.length = cpu_to_le32(len); |
167 | 104bf02e | Michael Tokarev | |
168 | 8a92ea2f | aliguori | if (get_param_value(buf, sizeof(buf), "rev", t)) { |
169 | 104bf02e | Michael Tokarev | val = strtoul(buf, &p, 0);
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170 | 104bf02e | Michael Tokarev | if (val > 255 || *p) { |
171 | 104bf02e | Michael Tokarev | fprintf(stderr, "acpitable: \"rev=%s\" is invalid\n", buf);
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172 | 104bf02e | Michael Tokarev | return -1; |
173 | 104bf02e | Michael Tokarev | } |
174 | 104bf02e | Michael Tokarev | hdr.revision = (uint8_t)val; |
175 | 104bf02e | Michael Tokarev | ++changed; |
176 | 8a92ea2f | aliguori | } |
177 | 8a92ea2f | aliguori | |
178 | 8a92ea2f | aliguori | if (get_param_value(buf, sizeof(buf), "oem_id", t)) { |
179 | 3cda3462 | Jim Meyering | /* strncpy is justified: the field need not be NUL-terminated. */
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180 | 3cda3462 | Jim Meyering | strncpy(hdr.oem_id, buf, sizeof(hdr.oem_id));
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181 | 104bf02e | Michael Tokarev | ++changed; |
182 | 8a92ea2f | aliguori | } |
183 | 8a92ea2f | aliguori | |
184 | 8a92ea2f | aliguori | if (get_param_value(buf, sizeof(buf), "oem_table_id", t)) { |
185 | 3cda3462 | Jim Meyering | /* strncpy is justified: the field need not be NUL-terminated. */
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186 | 3cda3462 | Jim Meyering | strncpy(hdr.oem_table_id, buf, sizeof(hdr.oem_table_id));
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187 | 104bf02e | Michael Tokarev | ++changed; |
188 | 8a92ea2f | aliguori | } |
189 | 8a92ea2f | aliguori | |
190 | 8a92ea2f | aliguori | if (get_param_value(buf, sizeof(buf), "oem_rev", t)) { |
191 | 104bf02e | Michael Tokarev | val = strtol(buf, &p, 0);
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192 | 104bf02e | Michael Tokarev | if (*p) {
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193 | 104bf02e | Michael Tokarev | fprintf(stderr, "acpitable: \"oem_rev=%s\" is invalid\n", buf);
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194 | 104bf02e | Michael Tokarev | return -1; |
195 | 104bf02e | Michael Tokarev | } |
196 | 104bf02e | Michael Tokarev | hdr.oem_revision = cpu_to_le32(val); |
197 | 104bf02e | Michael Tokarev | ++changed; |
198 | 8a92ea2f | aliguori | } |
199 | 8a92ea2f | aliguori | |
200 | 8a92ea2f | aliguori | if (get_param_value(buf, sizeof(buf), "asl_compiler_id", t)) { |
201 | 3cda3462 | Jim Meyering | /* strncpy is justified: the field need not be NUL-terminated. */
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202 | 3cda3462 | Jim Meyering | strncpy(hdr.asl_compiler_id, buf, sizeof(hdr.asl_compiler_id));
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203 | 104bf02e | Michael Tokarev | ++changed; |
204 | 8a92ea2f | aliguori | } |
205 | 8a92ea2f | aliguori | |
206 | 8a92ea2f | aliguori | if (get_param_value(buf, sizeof(buf), "asl_compiler_rev", t)) { |
207 | 104bf02e | Michael Tokarev | val = strtol(buf, &p, 0);
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208 | 104bf02e | Michael Tokarev | if (*p) {
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209 | 104bf02e | Michael Tokarev | fprintf(stderr, "acpitable: \"%s=%s\" is invalid\n",
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210 | 104bf02e | Michael Tokarev | "asl_compiler_rev", buf);
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211 | 104bf02e | Michael Tokarev | return -1; |
212 | 104bf02e | Michael Tokarev | } |
213 | 104bf02e | Michael Tokarev | hdr.asl_compiler_revision = cpu_to_le32(val); |
214 | 104bf02e | Michael Tokarev | ++changed; |
215 | 8a92ea2f | aliguori | } |
216 | 8a92ea2f | aliguori | |
217 | 104bf02e | Michael Tokarev | if (!has_header && !changed) {
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218 | 104bf02e | Michael Tokarev | fprintf(stderr, "warning: acpitable: no table headers are specified\n");
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219 | 8a92ea2f | aliguori | } |
220 | 8a92ea2f | aliguori | |
221 | 8a92ea2f | aliguori | |
222 | 104bf02e | Michael Tokarev | /* now calculate checksum of the table, complete with the header */
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223 | 104bf02e | Michael Tokarev | /* we may as well leave checksum intact if has_header is true */
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224 | 104bf02e | Michael Tokarev | /* alternatively there may be a way to set cksum to a given value */
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225 | 104bf02e | Michael Tokarev | hdr.checksum = 0; /* for checksum calculation */ |
226 | 8a92ea2f | aliguori | |
227 | 104bf02e | Michael Tokarev | /* put header back */
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228 | 104bf02e | Michael Tokarev | memcpy(f, &hdr, sizeof(hdr));
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229 | 104bf02e | Michael Tokarev | |
230 | 104bf02e | Michael Tokarev | if (changed || !has_header || 1) { |
231 | 104bf02e | Michael Tokarev | ((struct acpi_table_header *)f)->checksum =
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232 | 104bf02e | Michael Tokarev | acpi_checksum((uint8_t *)f + ACPI_TABLE_PFX_SIZE, len); |
233 | d729bb9a | Isaku Yamahata | } |
234 | 8a92ea2f | aliguori | |
235 | 8a92ea2f | aliguori | /* increase number of tables */
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236 | 104bf02e | Michael Tokarev | (*(uint16_t *)acpi_tables) = |
237 | 104bf02e | Michael Tokarev | cpu_to_le32(le32_to_cpu(*(uint16_t *)acpi_tables) + 1);
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238 | 104bf02e | Michael Tokarev | |
239 | 104bf02e | Michael Tokarev | acpi_tables_len = allen; |
240 | 8a92ea2f | aliguori | return 0; |
241 | 104bf02e | Michael Tokarev | |
242 | 8a92ea2f | aliguori | } |
243 | a54d41a8 | Isaku Yamahata | |
244 | da98c8eb | Gerd Hoffmann | static void acpi_notify_wakeup(Notifier *notifier, void *data) |
245 | da98c8eb | Gerd Hoffmann | { |
246 | da98c8eb | Gerd Hoffmann | ACPIREGS *ar = container_of(notifier, ACPIREGS, wakeup); |
247 | da98c8eb | Gerd Hoffmann | WakeupReason *reason = data; |
248 | da98c8eb | Gerd Hoffmann | |
249 | da98c8eb | Gerd Hoffmann | switch (*reason) {
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250 | 62aeb0f7 | Gerd Hoffmann | case QEMU_WAKEUP_REASON_RTC:
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251 | 62aeb0f7 | Gerd Hoffmann | ar->pm1.evt.sts |= |
252 | 62aeb0f7 | Gerd Hoffmann | (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_RT_CLOCK_STATUS); |
253 | 62aeb0f7 | Gerd Hoffmann | break;
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254 | 6595abc0 | Gerd Hoffmann | case QEMU_WAKEUP_REASON_PMTIMER:
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255 | 6595abc0 | Gerd Hoffmann | ar->pm1.evt.sts |= |
256 | 6595abc0 | Gerd Hoffmann | (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_TIMER_STATUS); |
257 | 6595abc0 | Gerd Hoffmann | break;
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258 | da98c8eb | Gerd Hoffmann | case QEMU_WAKEUP_REASON_OTHER:
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259 | da98c8eb | Gerd Hoffmann | default:
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260 | da98c8eb | Gerd Hoffmann | /* ACPI_BITMASK_WAKE_STATUS should be set on resume.
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261 | da98c8eb | Gerd Hoffmann | Pretend that resume was caused by power button */
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262 | da98c8eb | Gerd Hoffmann | ar->pm1.evt.sts |= |
263 | da98c8eb | Gerd Hoffmann | (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_POWER_BUTTON_STATUS); |
264 | da98c8eb | Gerd Hoffmann | break;
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265 | da98c8eb | Gerd Hoffmann | } |
266 | da98c8eb | Gerd Hoffmann | } |
267 | da98c8eb | Gerd Hoffmann | |
268 | 04dc308f | Isaku Yamahata | /* ACPI PM1a EVT */
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269 | 2886be1b | Gerd Hoffmann | uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar) |
270 | 04dc308f | Isaku Yamahata | { |
271 | 04dc308f | Isaku Yamahata | int64_t d = acpi_pm_tmr_get_clock(); |
272 | 2886be1b | Gerd Hoffmann | if (d >= ar->tmr.overflow_time) {
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273 | 355bf2e5 | Gerd Hoffmann | ar->pm1.evt.sts |= ACPI_BITMASK_TIMER_STATUS; |
274 | 04dc308f | Isaku Yamahata | } |
275 | 355bf2e5 | Gerd Hoffmann | return ar->pm1.evt.sts;
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276 | 04dc308f | Isaku Yamahata | } |
277 | 04dc308f | Isaku Yamahata | |
278 | b5a7c024 | Gerd Hoffmann | static void acpi_pm1_evt_write_sts(ACPIREGS *ar, uint16_t val) |
279 | 04dc308f | Isaku Yamahata | { |
280 | 2886be1b | Gerd Hoffmann | uint16_t pm1_sts = acpi_pm1_evt_get_sts(ar); |
281 | 04dc308f | Isaku Yamahata | if (pm1_sts & val & ACPI_BITMASK_TIMER_STATUS) {
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282 | 04dc308f | Isaku Yamahata | /* if TMRSTS is reset, then compute the new overflow time */
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283 | 355bf2e5 | Gerd Hoffmann | acpi_pm_tmr_calc_overflow_time(ar); |
284 | 04dc308f | Isaku Yamahata | } |
285 | 355bf2e5 | Gerd Hoffmann | ar->pm1.evt.sts &= ~val; |
286 | 04dc308f | Isaku Yamahata | } |
287 | 04dc308f | Isaku Yamahata | |
288 | b5a7c024 | Gerd Hoffmann | static void acpi_pm1_evt_write_en(ACPIREGS *ar, uint16_t val) |
289 | 8283c4f5 | Gerd Hoffmann | { |
290 | 8283c4f5 | Gerd Hoffmann | ar->pm1.evt.en = val; |
291 | 62aeb0f7 | Gerd Hoffmann | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_RTC, |
292 | 62aeb0f7 | Gerd Hoffmann | val & ACPI_BITMASK_RT_CLOCK_ENABLE); |
293 | 6595abc0 | Gerd Hoffmann | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_PMTIMER, |
294 | 6595abc0 | Gerd Hoffmann | val & ACPI_BITMASK_TIMER_ENABLE); |
295 | 8283c4f5 | Gerd Hoffmann | } |
296 | 8283c4f5 | Gerd Hoffmann | |
297 | 355bf2e5 | Gerd Hoffmann | void acpi_pm1_evt_power_down(ACPIREGS *ar)
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298 | 04dc308f | Isaku Yamahata | { |
299 | 355bf2e5 | Gerd Hoffmann | if (ar->pm1.evt.en & ACPI_BITMASK_POWER_BUTTON_ENABLE) {
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300 | 355bf2e5 | Gerd Hoffmann | ar->pm1.evt.sts |= ACPI_BITMASK_POWER_BUTTON_STATUS; |
301 | 355bf2e5 | Gerd Hoffmann | ar->tmr.update_sci(ar); |
302 | 04dc308f | Isaku Yamahata | } |
303 | 04dc308f | Isaku Yamahata | } |
304 | 04dc308f | Isaku Yamahata | |
305 | 355bf2e5 | Gerd Hoffmann | void acpi_pm1_evt_reset(ACPIREGS *ar)
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306 | 04dc308f | Isaku Yamahata | { |
307 | 355bf2e5 | Gerd Hoffmann | ar->pm1.evt.sts = 0;
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308 | 355bf2e5 | Gerd Hoffmann | ar->pm1.evt.en = 0;
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309 | 62aeb0f7 | Gerd Hoffmann | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_RTC, 0);
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310 | 6595abc0 | Gerd Hoffmann | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_PMTIMER, 0);
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311 | 04dc308f | Isaku Yamahata | } |
312 | 04dc308f | Isaku Yamahata | |
313 | b5a7c024 | Gerd Hoffmann | static uint64_t acpi_pm_evt_read(void *opaque, hwaddr addr, unsigned width) |
314 | b5a7c024 | Gerd Hoffmann | { |
315 | b5a7c024 | Gerd Hoffmann | ACPIREGS *ar = opaque; |
316 | b5a7c024 | Gerd Hoffmann | switch (addr) {
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317 | b5a7c024 | Gerd Hoffmann | case 0: |
318 | b5a7c024 | Gerd Hoffmann | return acpi_pm1_evt_get_sts(ar);
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319 | b5a7c024 | Gerd Hoffmann | case 2: |
320 | b5a7c024 | Gerd Hoffmann | return ar->pm1.evt.en;
|
321 | b5a7c024 | Gerd Hoffmann | default:
|
322 | b5a7c024 | Gerd Hoffmann | return 0; |
323 | b5a7c024 | Gerd Hoffmann | } |
324 | b5a7c024 | Gerd Hoffmann | } |
325 | b5a7c024 | Gerd Hoffmann | |
326 | b5a7c024 | Gerd Hoffmann | static void acpi_pm_evt_write(void *opaque, hwaddr addr, uint64_t val, |
327 | b5a7c024 | Gerd Hoffmann | unsigned width)
|
328 | b5a7c024 | Gerd Hoffmann | { |
329 | b5a7c024 | Gerd Hoffmann | ACPIREGS *ar = opaque; |
330 | b5a7c024 | Gerd Hoffmann | switch (addr) {
|
331 | b5a7c024 | Gerd Hoffmann | case 0: |
332 | b5a7c024 | Gerd Hoffmann | acpi_pm1_evt_write_sts(ar, val); |
333 | b5a7c024 | Gerd Hoffmann | ar->pm1.evt.update_sci(ar); |
334 | b5a7c024 | Gerd Hoffmann | break;
|
335 | b5a7c024 | Gerd Hoffmann | case 2: |
336 | b5a7c024 | Gerd Hoffmann | acpi_pm1_evt_write_en(ar, val); |
337 | b5a7c024 | Gerd Hoffmann | ar->pm1.evt.update_sci(ar); |
338 | b5a7c024 | Gerd Hoffmann | break;
|
339 | b5a7c024 | Gerd Hoffmann | } |
340 | b5a7c024 | Gerd Hoffmann | } |
341 | b5a7c024 | Gerd Hoffmann | |
342 | b5a7c024 | Gerd Hoffmann | static const MemoryRegionOps acpi_pm_evt_ops = { |
343 | b5a7c024 | Gerd Hoffmann | .read = acpi_pm_evt_read, |
344 | b5a7c024 | Gerd Hoffmann | .write = acpi_pm_evt_write, |
345 | b5a7c024 | Gerd Hoffmann | .valid.min_access_size = 2,
|
346 | b5a7c024 | Gerd Hoffmann | .valid.max_access_size = 2,
|
347 | b5a7c024 | Gerd Hoffmann | .endianness = DEVICE_LITTLE_ENDIAN, |
348 | b5a7c024 | Gerd Hoffmann | }; |
349 | b5a7c024 | Gerd Hoffmann | |
350 | b5a7c024 | Gerd Hoffmann | void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci,
|
351 | b5a7c024 | Gerd Hoffmann | MemoryRegion *parent) |
352 | b5a7c024 | Gerd Hoffmann | { |
353 | b5a7c024 | Gerd Hoffmann | ar->pm1.evt.update_sci = update_sci; |
354 | b5a7c024 | Gerd Hoffmann | memory_region_init_io(&ar->pm1.evt.io, &acpi_pm_evt_ops, ar, "acpi-evt", 4); |
355 | b5a7c024 | Gerd Hoffmann | memory_region_add_subregion(parent, 0, &ar->pm1.evt.io);
|
356 | b5a7c024 | Gerd Hoffmann | } |
357 | b5a7c024 | Gerd Hoffmann | |
358 | a54d41a8 | Isaku Yamahata | /* ACPI PM_TMR */
|
359 | 355bf2e5 | Gerd Hoffmann | void acpi_pm_tmr_update(ACPIREGS *ar, bool enable) |
360 | a54d41a8 | Isaku Yamahata | { |
361 | a54d41a8 | Isaku Yamahata | int64_t expire_time; |
362 | a54d41a8 | Isaku Yamahata | |
363 | a54d41a8 | Isaku Yamahata | /* schedule a timer interruption if needed */
|
364 | a54d41a8 | Isaku Yamahata | if (enable) {
|
365 | 355bf2e5 | Gerd Hoffmann | expire_time = muldiv64(ar->tmr.overflow_time, get_ticks_per_sec(), |
366 | a54d41a8 | Isaku Yamahata | PM_TIMER_FREQUENCY); |
367 | 355bf2e5 | Gerd Hoffmann | qemu_mod_timer(ar->tmr.timer, expire_time); |
368 | a54d41a8 | Isaku Yamahata | } else {
|
369 | 355bf2e5 | Gerd Hoffmann | qemu_del_timer(ar->tmr.timer); |
370 | a54d41a8 | Isaku Yamahata | } |
371 | a54d41a8 | Isaku Yamahata | } |
372 | a54d41a8 | Isaku Yamahata | |
373 | 355bf2e5 | Gerd Hoffmann | void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar)
|
374 | a54d41a8 | Isaku Yamahata | { |
375 | a54d41a8 | Isaku Yamahata | int64_t d = acpi_pm_tmr_get_clock(); |
376 | 355bf2e5 | Gerd Hoffmann | ar->tmr.overflow_time = (d + 0x800000LL) & ~0x7fffffLL; |
377 | a54d41a8 | Isaku Yamahata | } |
378 | a54d41a8 | Isaku Yamahata | |
379 | 77d58b1e | Gerd Hoffmann | static uint32_t acpi_pm_tmr_get(ACPIREGS *ar)
|
380 | a54d41a8 | Isaku Yamahata | { |
381 | 3a93113a | Dong Xu Wang | uint32_t d = acpi_pm_tmr_get_clock(); |
382 | a54d41a8 | Isaku Yamahata | return d & 0xffffff; |
383 | a54d41a8 | Isaku Yamahata | } |
384 | a54d41a8 | Isaku Yamahata | |
385 | a54d41a8 | Isaku Yamahata | static void acpi_pm_tmr_timer(void *opaque) |
386 | a54d41a8 | Isaku Yamahata | { |
387 | 355bf2e5 | Gerd Hoffmann | ACPIREGS *ar = opaque; |
388 | 6595abc0 | Gerd Hoffmann | qemu_system_wakeup_request(QEMU_WAKEUP_REASON_PMTIMER); |
389 | 355bf2e5 | Gerd Hoffmann | ar->tmr.update_sci(ar); |
390 | a54d41a8 | Isaku Yamahata | } |
391 | a54d41a8 | Isaku Yamahata | |
392 | 77d58b1e | Gerd Hoffmann | static uint64_t acpi_pm_tmr_read(void *opaque, hwaddr addr, unsigned width) |
393 | 77d58b1e | Gerd Hoffmann | { |
394 | 77d58b1e | Gerd Hoffmann | return acpi_pm_tmr_get(opaque);
|
395 | 77d58b1e | Gerd Hoffmann | } |
396 | 77d58b1e | Gerd Hoffmann | |
397 | 77d58b1e | Gerd Hoffmann | static const MemoryRegionOps acpi_pm_tmr_ops = { |
398 | 77d58b1e | Gerd Hoffmann | .read = acpi_pm_tmr_read, |
399 | 77d58b1e | Gerd Hoffmann | .valid.min_access_size = 4,
|
400 | 77d58b1e | Gerd Hoffmann | .valid.max_access_size = 4,
|
401 | 77d58b1e | Gerd Hoffmann | .endianness = DEVICE_LITTLE_ENDIAN, |
402 | 77d58b1e | Gerd Hoffmann | }; |
403 | 77d58b1e | Gerd Hoffmann | |
404 | 77d58b1e | Gerd Hoffmann | void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci,
|
405 | 77d58b1e | Gerd Hoffmann | MemoryRegion *parent) |
406 | a54d41a8 | Isaku Yamahata | { |
407 | 355bf2e5 | Gerd Hoffmann | ar->tmr.update_sci = update_sci; |
408 | 355bf2e5 | Gerd Hoffmann | ar->tmr.timer = qemu_new_timer_ns(vm_clock, acpi_pm_tmr_timer, ar); |
409 | 77d58b1e | Gerd Hoffmann | memory_region_init_io(&ar->tmr.io, &acpi_pm_tmr_ops, ar, "acpi-tmr", 4); |
410 | 77d58b1e | Gerd Hoffmann | memory_region_add_subregion(parent, 8, &ar->tmr.io);
|
411 | a54d41a8 | Isaku Yamahata | } |
412 | a54d41a8 | Isaku Yamahata | |
413 | 355bf2e5 | Gerd Hoffmann | void acpi_pm_tmr_reset(ACPIREGS *ar)
|
414 | a54d41a8 | Isaku Yamahata | { |
415 | 355bf2e5 | Gerd Hoffmann | ar->tmr.overflow_time = 0;
|
416 | 355bf2e5 | Gerd Hoffmann | qemu_del_timer(ar->tmr.timer); |
417 | a54d41a8 | Isaku Yamahata | } |
418 | eaba51c5 | Isaku Yamahata | |
419 | eaba51c5 | Isaku Yamahata | /* ACPI PM1aCNT */
|
420 | afafe4bb | Gerd Hoffmann | static void acpi_pm1_cnt_write(ACPIREGS *ar, uint16_t val) |
421 | eaba51c5 | Isaku Yamahata | { |
422 | 355bf2e5 | Gerd Hoffmann | ar->pm1.cnt.cnt = val & ~(ACPI_BITMASK_SLEEP_ENABLE); |
423 | eaba51c5 | Isaku Yamahata | |
424 | eaba51c5 | Isaku Yamahata | if (val & ACPI_BITMASK_SLEEP_ENABLE) {
|
425 | eaba51c5 | Isaku Yamahata | /* change suspend type */
|
426 | eaba51c5 | Isaku Yamahata | uint16_t sus_typ = (val >> 10) & 7; |
427 | eaba51c5 | Isaku Yamahata | switch(sus_typ) {
|
428 | eaba51c5 | Isaku Yamahata | case 0: /* soft power off */ |
429 | eaba51c5 | Isaku Yamahata | qemu_system_shutdown_request(); |
430 | eaba51c5 | Isaku Yamahata | break;
|
431 | eaba51c5 | Isaku Yamahata | case 1: |
432 | da98c8eb | Gerd Hoffmann | qemu_system_suspend_request(); |
433 | da98c8eb | Gerd Hoffmann | break;
|
434 | eaba51c5 | Isaku Yamahata | default:
|
435 | afafe4bb | Gerd Hoffmann | if (sus_typ == ar->pm1.cnt.s4_val) { /* S4 request */ |
436 | 25df49f6 | Luiz Capitulino | monitor_protocol_event(QEVENT_SUSPEND_DISK, NULL);
|
437 | 459ae5ea | Gleb Natapov | qemu_system_shutdown_request(); |
438 | 459ae5ea | Gleb Natapov | } |
439 | eaba51c5 | Isaku Yamahata | break;
|
440 | eaba51c5 | Isaku Yamahata | } |
441 | eaba51c5 | Isaku Yamahata | } |
442 | eaba51c5 | Isaku Yamahata | } |
443 | eaba51c5 | Isaku Yamahata | |
444 | 355bf2e5 | Gerd Hoffmann | void acpi_pm1_cnt_update(ACPIREGS *ar,
|
445 | eaba51c5 | Isaku Yamahata | bool sci_enable, bool sci_disable) |
446 | eaba51c5 | Isaku Yamahata | { |
447 | eaba51c5 | Isaku Yamahata | /* ACPI specs 3.0, 4.7.2.5 */
|
448 | eaba51c5 | Isaku Yamahata | if (sci_enable) {
|
449 | 355bf2e5 | Gerd Hoffmann | ar->pm1.cnt.cnt |= ACPI_BITMASK_SCI_ENABLE; |
450 | eaba51c5 | Isaku Yamahata | } else if (sci_disable) { |
451 | 355bf2e5 | Gerd Hoffmann | ar->pm1.cnt.cnt &= ~ACPI_BITMASK_SCI_ENABLE; |
452 | eaba51c5 | Isaku Yamahata | } |
453 | eaba51c5 | Isaku Yamahata | } |
454 | eaba51c5 | Isaku Yamahata | |
455 | afafe4bb | Gerd Hoffmann | static uint64_t acpi_pm_cnt_read(void *opaque, hwaddr addr, unsigned width) |
456 | afafe4bb | Gerd Hoffmann | { |
457 | afafe4bb | Gerd Hoffmann | ACPIREGS *ar = opaque; |
458 | afafe4bb | Gerd Hoffmann | return ar->pm1.cnt.cnt;
|
459 | afafe4bb | Gerd Hoffmann | } |
460 | afafe4bb | Gerd Hoffmann | |
461 | afafe4bb | Gerd Hoffmann | static void acpi_pm_cnt_write(void *opaque, hwaddr addr, uint64_t val, |
462 | afafe4bb | Gerd Hoffmann | unsigned width)
|
463 | afafe4bb | Gerd Hoffmann | { |
464 | afafe4bb | Gerd Hoffmann | acpi_pm1_cnt_write(opaque, val); |
465 | afafe4bb | Gerd Hoffmann | } |
466 | afafe4bb | Gerd Hoffmann | |
467 | afafe4bb | Gerd Hoffmann | static const MemoryRegionOps acpi_pm_cnt_ops = { |
468 | afafe4bb | Gerd Hoffmann | .read = acpi_pm_cnt_read, |
469 | afafe4bb | Gerd Hoffmann | .write = acpi_pm_cnt_write, |
470 | afafe4bb | Gerd Hoffmann | .valid.min_access_size = 2,
|
471 | afafe4bb | Gerd Hoffmann | .valid.max_access_size = 2,
|
472 | afafe4bb | Gerd Hoffmann | .endianness = DEVICE_LITTLE_ENDIAN, |
473 | afafe4bb | Gerd Hoffmann | }; |
474 | afafe4bb | Gerd Hoffmann | |
475 | afafe4bb | Gerd Hoffmann | void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent)
|
476 | afafe4bb | Gerd Hoffmann | { |
477 | afafe4bb | Gerd Hoffmann | ar->wakeup.notify = acpi_notify_wakeup; |
478 | afafe4bb | Gerd Hoffmann | qemu_register_wakeup_notifier(&ar->wakeup); |
479 | afafe4bb | Gerd Hoffmann | memory_region_init_io(&ar->pm1.cnt.io, &acpi_pm_cnt_ops, ar, "acpi-cnt", 2); |
480 | afafe4bb | Gerd Hoffmann | memory_region_add_subregion(parent, 4, &ar->pm1.cnt.io);
|
481 | afafe4bb | Gerd Hoffmann | } |
482 | afafe4bb | Gerd Hoffmann | |
483 | 355bf2e5 | Gerd Hoffmann | void acpi_pm1_cnt_reset(ACPIREGS *ar)
|
484 | eaba51c5 | Isaku Yamahata | { |
485 | 355bf2e5 | Gerd Hoffmann | ar->pm1.cnt.cnt = 0;
|
486 | eaba51c5 | Isaku Yamahata | } |
487 | 23910d3f | Isaku Yamahata | |
488 | 23910d3f | Isaku Yamahata | /* ACPI GPE */
|
489 | 355bf2e5 | Gerd Hoffmann | void acpi_gpe_init(ACPIREGS *ar, uint8_t len)
|
490 | 23910d3f | Isaku Yamahata | { |
491 | 355bf2e5 | Gerd Hoffmann | ar->gpe.len = len; |
492 | 355bf2e5 | Gerd Hoffmann | ar->gpe.sts = g_malloc0(len / 2);
|
493 | 355bf2e5 | Gerd Hoffmann | ar->gpe.en = g_malloc0(len / 2);
|
494 | 23910d3f | Isaku Yamahata | } |
495 | 23910d3f | Isaku Yamahata | |
496 | 355bf2e5 | Gerd Hoffmann | void acpi_gpe_reset(ACPIREGS *ar)
|
497 | 23910d3f | Isaku Yamahata | { |
498 | 355bf2e5 | Gerd Hoffmann | memset(ar->gpe.sts, 0, ar->gpe.len / 2); |
499 | 355bf2e5 | Gerd Hoffmann | memset(ar->gpe.en, 0, ar->gpe.len / 2); |
500 | 23910d3f | Isaku Yamahata | } |
501 | 23910d3f | Isaku Yamahata | |
502 | 355bf2e5 | Gerd Hoffmann | static uint8_t *acpi_gpe_ioport_get_ptr(ACPIREGS *ar, uint32_t addr)
|
503 | 23910d3f | Isaku Yamahata | { |
504 | 23910d3f | Isaku Yamahata | uint8_t *cur = NULL;
|
505 | 23910d3f | Isaku Yamahata | |
506 | 355bf2e5 | Gerd Hoffmann | if (addr < ar->gpe.len / 2) { |
507 | 355bf2e5 | Gerd Hoffmann | cur = ar->gpe.sts + addr; |
508 | 355bf2e5 | Gerd Hoffmann | } else if (addr < ar->gpe.len) { |
509 | 355bf2e5 | Gerd Hoffmann | cur = ar->gpe.en + addr - ar->gpe.len / 2;
|
510 | 23910d3f | Isaku Yamahata | } else {
|
511 | 23910d3f | Isaku Yamahata | abort(); |
512 | 23910d3f | Isaku Yamahata | } |
513 | 23910d3f | Isaku Yamahata | |
514 | 23910d3f | Isaku Yamahata | return cur;
|
515 | 23910d3f | Isaku Yamahata | } |
516 | 23910d3f | Isaku Yamahata | |
517 | 355bf2e5 | Gerd Hoffmann | void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val)
|
518 | 23910d3f | Isaku Yamahata | { |
519 | 23910d3f | Isaku Yamahata | uint8_t *cur; |
520 | 23910d3f | Isaku Yamahata | |
521 | 355bf2e5 | Gerd Hoffmann | cur = acpi_gpe_ioport_get_ptr(ar, addr); |
522 | 355bf2e5 | Gerd Hoffmann | if (addr < ar->gpe.len / 2) { |
523 | 23910d3f | Isaku Yamahata | /* GPE_STS */
|
524 | 23910d3f | Isaku Yamahata | *cur = (*cur) & ~val; |
525 | 355bf2e5 | Gerd Hoffmann | } else if (addr < ar->gpe.len) { |
526 | 23910d3f | Isaku Yamahata | /* GPE_EN */
|
527 | 23910d3f | Isaku Yamahata | *cur = val; |
528 | 23910d3f | Isaku Yamahata | } else {
|
529 | 23910d3f | Isaku Yamahata | abort(); |
530 | 23910d3f | Isaku Yamahata | } |
531 | 23910d3f | Isaku Yamahata | } |
532 | 23910d3f | Isaku Yamahata | |
533 | 355bf2e5 | Gerd Hoffmann | uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr) |
534 | 23910d3f | Isaku Yamahata | { |
535 | 23910d3f | Isaku Yamahata | uint8_t *cur; |
536 | 23910d3f | Isaku Yamahata | uint32_t val; |
537 | 23910d3f | Isaku Yamahata | |
538 | 355bf2e5 | Gerd Hoffmann | cur = acpi_gpe_ioport_get_ptr(ar, addr); |
539 | 23910d3f | Isaku Yamahata | val = 0;
|
540 | 23910d3f | Isaku Yamahata | if (cur != NULL) { |
541 | 23910d3f | Isaku Yamahata | val = *cur; |
542 | 23910d3f | Isaku Yamahata | } |
543 | 23910d3f | Isaku Yamahata | |
544 | 23910d3f | Isaku Yamahata | return val;
|
545 | 23910d3f | Isaku Yamahata | } |