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1 | aae9460e | Paul Brook | /*
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2 | aae9460e | Paul Brook | * Dynamic device configuration and creation.
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3 | aae9460e | Paul Brook | *
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4 | aae9460e | Paul Brook | * Copyright (c) 2009 CodeSourcery
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5 | aae9460e | Paul Brook | *
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6 | aae9460e | Paul Brook | * This library is free software; you can redistribute it and/or
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7 | aae9460e | Paul Brook | * modify it under the terms of the GNU Lesser General Public
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8 | aae9460e | Paul Brook | * License as published by the Free Software Foundation; either
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9 | aae9460e | Paul Brook | * version 2 of the License, or (at your option) any later version.
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10 | aae9460e | Paul Brook | *
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11 | aae9460e | Paul Brook | * This library is distributed in the hope that it will be useful,
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12 | aae9460e | Paul Brook | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | aae9460e | Paul Brook | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | aae9460e | Paul Brook | * Lesser General Public License for more details.
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15 | aae9460e | Paul Brook | *
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16 | aae9460e | Paul Brook | * You should have received a copy of the GNU Lesser General Public
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17 | 8167ee88 | Blue Swirl | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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18 | aae9460e | Paul Brook | */
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19 | aae9460e | Paul Brook | |
20 | aae9460e | Paul Brook | /* The theory here is that it should be possible to create a machine without
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21 | aae9460e | Paul Brook | knowledge of specific devices. Historically board init routines have
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22 | aae9460e | Paul Brook | passed a bunch of arguments to each device, requiring the board know
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23 | aae9460e | Paul Brook | exactly which device it is dealing with. This file provides an abstract
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24 | aae9460e | Paul Brook | API for device configuration and initialization. Devices will generally
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25 | aae9460e | Paul Brook | inherit from a particular bus (e.g. PCI or I2C) rather than
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26 | aae9460e | Paul Brook | this API directly. */
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27 | aae9460e | Paul Brook | |
28 | 9d07d757 | Paul Brook | #include "net.h" |
29 | aae9460e | Paul Brook | #include "qdev.h" |
30 | aae9460e | Paul Brook | #include "sysemu.h" |
31 | cae4956e | Gerd Hoffmann | #include "monitor.h" |
32 | aae9460e | Paul Brook | |
33 | 02e2da45 | Paul Brook | /* This is a nasty hack to allow passing a NULL bus to qdev_create. */
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34 | b9aaf7f8 | Blue Swirl | static BusState *main_system_bus;
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35 | 4d6ae674 | Paul Brook | |
36 | 042f84d0 | Gerd Hoffmann | static DeviceInfo *device_info_list;
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37 | aae9460e | Paul Brook | |
38 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
39 | 8ffb1bcf | Gerd Hoffmann | const BusInfo *info);
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40 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find(const char *path); |
41 | 8ffb1bcf | Gerd Hoffmann | |
42 | aae9460e | Paul Brook | /* Register a new device type. */
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43 | 074f2fff | Gerd Hoffmann | void qdev_register(DeviceInfo *info)
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44 | aae9460e | Paul Brook | { |
45 | 074f2fff | Gerd Hoffmann | assert(info->size >= sizeof(DeviceState));
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46 | 042f84d0 | Gerd Hoffmann | assert(!info->next); |
47 | aae9460e | Paul Brook | |
48 | 042f84d0 | Gerd Hoffmann | info->next = device_info_list; |
49 | 042f84d0 | Gerd Hoffmann | device_info_list = info; |
50 | aae9460e | Paul Brook | } |
51 | aae9460e | Paul Brook | |
52 | 81ebb98b | Gerd Hoffmann | static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name) |
53 | 81ebb98b | Gerd Hoffmann | { |
54 | 81ebb98b | Gerd Hoffmann | DeviceInfo *info; |
55 | 81ebb98b | Gerd Hoffmann | |
56 | 3320e56e | Gerd Hoffmann | /* first check device names */
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57 | 81ebb98b | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
58 | 81ebb98b | Gerd Hoffmann | if (bus_info && info->bus_info != bus_info)
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59 | 81ebb98b | Gerd Hoffmann | continue;
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60 | 81ebb98b | Gerd Hoffmann | if (strcmp(info->name, name) != 0) |
61 | 81ebb98b | Gerd Hoffmann | continue;
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62 | 81ebb98b | Gerd Hoffmann | return info;
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63 | 81ebb98b | Gerd Hoffmann | } |
64 | 3320e56e | Gerd Hoffmann | |
65 | 3320e56e | Gerd Hoffmann | /* failing that check the aliases */
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66 | 3320e56e | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
67 | 3320e56e | Gerd Hoffmann | if (bus_info && info->bus_info != bus_info)
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68 | 3320e56e | Gerd Hoffmann | continue;
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69 | 3320e56e | Gerd Hoffmann | if (!info->alias)
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70 | 3320e56e | Gerd Hoffmann | continue;
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71 | 3320e56e | Gerd Hoffmann | if (strcmp(info->alias, name) != 0) |
72 | 3320e56e | Gerd Hoffmann | continue;
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73 | 3320e56e | Gerd Hoffmann | return info;
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74 | 3320e56e | Gerd Hoffmann | } |
75 | 81ebb98b | Gerd Hoffmann | return NULL; |
76 | 81ebb98b | Gerd Hoffmann | } |
77 | 81ebb98b | Gerd Hoffmann | |
78 | aae9460e | Paul Brook | /* Create a new device. This only initializes the device state structure
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79 | aae9460e | Paul Brook | and allows properties to be set. qdev_init should be called to
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80 | aae9460e | Paul Brook | initialize the actual device emulation. */
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81 | 02e2da45 | Paul Brook | DeviceState *qdev_create(BusState *bus, const char *name) |
82 | aae9460e | Paul Brook | { |
83 | 042f84d0 | Gerd Hoffmann | DeviceInfo *info; |
84 | aae9460e | Paul Brook | DeviceState *dev; |
85 | aae9460e | Paul Brook | |
86 | 10c4c98a | Gerd Hoffmann | if (!bus) {
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87 | 10c4c98a | Gerd Hoffmann | if (!main_system_bus) {
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88 | 10c4c98a | Gerd Hoffmann | main_system_bus = qbus_create(&system_bus_info, NULL, "main-system-bus"); |
89 | aae9460e | Paul Brook | } |
90 | 10c4c98a | Gerd Hoffmann | bus = main_system_bus; |
91 | 10c4c98a | Gerd Hoffmann | } |
92 | 10c4c98a | Gerd Hoffmann | |
93 | 81ebb98b | Gerd Hoffmann | info = qdev_find_info(bus->info, name); |
94 | 042f84d0 | Gerd Hoffmann | if (!info) {
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95 | 10c4c98a | Gerd Hoffmann | hw_error("Unknown device '%s' for bus '%s'\n", name, bus->info->name);
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96 | aae9460e | Paul Brook | } |
97 | aae9460e | Paul Brook | |
98 | 042f84d0 | Gerd Hoffmann | dev = qemu_mallocz(info->size); |
99 | 042f84d0 | Gerd Hoffmann | dev->info = info; |
100 | 02e2da45 | Paul Brook | dev->parent_bus = bus; |
101 | ee6847d1 | Gerd Hoffmann | qdev_prop_set_defaults(dev, dev->info->props); |
102 | ee6847d1 | Gerd Hoffmann | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); |
103 | b6b61144 | Gerd Hoffmann | qdev_prop_set_compat(dev); |
104 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&bus->children, dev, sibling); |
105 | aae9460e | Paul Brook | return dev;
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106 | aae9460e | Paul Brook | } |
107 | aae9460e | Paul Brook | |
108 | 1b524b04 | Gerd Hoffmann | static int qdev_print_devinfo(DeviceInfo *info, char *dest, int len) |
109 | 1b524b04 | Gerd Hoffmann | { |
110 | 1b524b04 | Gerd Hoffmann | int pos = 0; |
111 | 22f2e344 | Gerd Hoffmann | int ret;
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112 | 22f2e344 | Gerd Hoffmann | |
113 | 22f2e344 | Gerd Hoffmann | ret = snprintf(dest+pos, len-pos, "name \"%s\", bus %s",
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114 | 22f2e344 | Gerd Hoffmann | info->name, info->bus_info->name); |
115 | 22f2e344 | Gerd Hoffmann | pos += MIN(len-pos,ret); |
116 | 22f2e344 | Gerd Hoffmann | if (info->alias) {
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117 | 22f2e344 | Gerd Hoffmann | ret = snprintf(dest+pos, len-pos, ", alias \"%s\"", info->alias);
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118 | 22f2e344 | Gerd Hoffmann | pos += MIN(len-pos,ret); |
119 | 22f2e344 | Gerd Hoffmann | } |
120 | 22f2e344 | Gerd Hoffmann | if (info->desc) {
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121 | 22f2e344 | Gerd Hoffmann | ret = snprintf(dest+pos, len-pos, ", desc \"%s\"", info->desc);
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122 | 22f2e344 | Gerd Hoffmann | pos += MIN(len-pos,ret); |
123 | 22f2e344 | Gerd Hoffmann | } |
124 | 22f2e344 | Gerd Hoffmann | if (info->no_user) {
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125 | 22f2e344 | Gerd Hoffmann | ret = snprintf(dest+pos, len-pos, ", no-user");
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126 | 22f2e344 | Gerd Hoffmann | pos += MIN(len-pos,ret); |
127 | 22f2e344 | Gerd Hoffmann | } |
128 | 1b524b04 | Gerd Hoffmann | return pos;
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129 | 1b524b04 | Gerd Hoffmann | } |
130 | 1b524b04 | Gerd Hoffmann | |
131 | f31d07d1 | Gerd Hoffmann | static int set_property(const char *name, const char *value, void *opaque) |
132 | 8ffb1bcf | Gerd Hoffmann | { |
133 | f31d07d1 | Gerd Hoffmann | DeviceState *dev = opaque; |
134 | f31d07d1 | Gerd Hoffmann | |
135 | f31d07d1 | Gerd Hoffmann | if (strcmp(name, "driver") == 0) |
136 | f31d07d1 | Gerd Hoffmann | return 0; |
137 | f31d07d1 | Gerd Hoffmann | if (strcmp(name, "bus") == 0) |
138 | f31d07d1 | Gerd Hoffmann | return 0; |
139 | f31d07d1 | Gerd Hoffmann | |
140 | f31d07d1 | Gerd Hoffmann | if (-1 == qdev_prop_parse(dev, name, value)) { |
141 | 286c2321 | Gerd Hoffmann | qemu_error("can't set property \"%s\" to \"%s\" for \"%s\"\n",
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142 | 286c2321 | Gerd Hoffmann | name, value, dev->info->name); |
143 | f31d07d1 | Gerd Hoffmann | return -1; |
144 | f31d07d1 | Gerd Hoffmann | } |
145 | f31d07d1 | Gerd Hoffmann | return 0; |
146 | f31d07d1 | Gerd Hoffmann | } |
147 | f31d07d1 | Gerd Hoffmann | |
148 | f31d07d1 | Gerd Hoffmann | DeviceState *qdev_device_add(QemuOpts *opts) |
149 | f31d07d1 | Gerd Hoffmann | { |
150 | f31d07d1 | Gerd Hoffmann | const char *driver, *path, *id; |
151 | 8ffb1bcf | Gerd Hoffmann | DeviceInfo *info; |
152 | 8ffb1bcf | Gerd Hoffmann | DeviceState *qdev; |
153 | 8ffb1bcf | Gerd Hoffmann | BusState *bus; |
154 | 8ffb1bcf | Gerd Hoffmann | |
155 | f31d07d1 | Gerd Hoffmann | driver = qemu_opt_get(opts, "driver");
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156 | f31d07d1 | Gerd Hoffmann | if (!driver) {
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157 | 286c2321 | Gerd Hoffmann | qemu_error("-device: no driver specified\n");
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158 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
159 | 8ffb1bcf | Gerd Hoffmann | } |
160 | 8ffb1bcf | Gerd Hoffmann | if (strcmp(driver, "?") == 0) { |
161 | 1b524b04 | Gerd Hoffmann | char msg[256]; |
162 | 8ffb1bcf | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
163 | 1b524b04 | Gerd Hoffmann | qdev_print_devinfo(info, msg, sizeof(msg));
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164 | 286c2321 | Gerd Hoffmann | qemu_error("%s\n", msg);
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165 | 8ffb1bcf | Gerd Hoffmann | } |
166 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
167 | 8ffb1bcf | Gerd Hoffmann | } |
168 | f31d07d1 | Gerd Hoffmann | |
169 | f31d07d1 | Gerd Hoffmann | /* find driver */
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170 | 8ffb1bcf | Gerd Hoffmann | info = qdev_find_info(NULL, driver);
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171 | 8ffb1bcf | Gerd Hoffmann | if (!info) {
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172 | 286c2321 | Gerd Hoffmann | qemu_error("Device \"%s\" not found. Try -device '?' for a list.\n",
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173 | 286c2321 | Gerd Hoffmann | driver); |
174 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
175 | 8ffb1bcf | Gerd Hoffmann | } |
176 | 8ffb1bcf | Gerd Hoffmann | if (info->no_user) {
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177 | 286c2321 | Gerd Hoffmann | qemu_error("device \"%s\" can't be added via command line\n",
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178 | 286c2321 | Gerd Hoffmann | info->name); |
179 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
180 | 8ffb1bcf | Gerd Hoffmann | } |
181 | 8ffb1bcf | Gerd Hoffmann | |
182 | f31d07d1 | Gerd Hoffmann | /* find bus */
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183 | f31d07d1 | Gerd Hoffmann | path = qemu_opt_get(opts, "bus");
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184 | f31d07d1 | Gerd Hoffmann | if (path != NULL) { |
185 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find(path); |
186 | 8ffb1bcf | Gerd Hoffmann | } else {
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187 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find_recursive(main_system_bus, NULL, info->bus_info);
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188 | 8ffb1bcf | Gerd Hoffmann | } |
189 | 75570088 | Gerd Hoffmann | if (!bus) {
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190 | 75570088 | Gerd Hoffmann | qemu_error("Did not find %s bus for %s\n",
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191 | 75570088 | Gerd Hoffmann | path ? path : info->bus_info->name, info->name); |
192 | f31d07d1 | Gerd Hoffmann | return NULL; |
193 | 75570088 | Gerd Hoffmann | } |
194 | 8ffb1bcf | Gerd Hoffmann | |
195 | f31d07d1 | Gerd Hoffmann | /* create device, set properties */
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196 | f31d07d1 | Gerd Hoffmann | qdev = qdev_create(bus, driver); |
197 | f31d07d1 | Gerd Hoffmann | id = qemu_opts_id(opts); |
198 | f31d07d1 | Gerd Hoffmann | if (id) {
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199 | f31d07d1 | Gerd Hoffmann | qdev->id = id; |
200 | f31d07d1 | Gerd Hoffmann | } |
201 | f31d07d1 | Gerd Hoffmann | if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) { |
202 | f31d07d1 | Gerd Hoffmann | qdev_free(qdev); |
203 | f31d07d1 | Gerd Hoffmann | return NULL; |
204 | 8ffb1bcf | Gerd Hoffmann | } |
205 | 81a322d4 | Gerd Hoffmann | if (qdev_init(qdev) != 0) { |
206 | 81a322d4 | Gerd Hoffmann | qdev_free(qdev); |
207 | 81a322d4 | Gerd Hoffmann | return NULL; |
208 | 81a322d4 | Gerd Hoffmann | } |
209 | 8ffb1bcf | Gerd Hoffmann | return qdev;
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210 | 8ffb1bcf | Gerd Hoffmann | } |
211 | 8ffb1bcf | Gerd Hoffmann | |
212 | aae9460e | Paul Brook | /* Initialize a device. Device properties should be set before calling
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213 | aae9460e | Paul Brook | this function. IRQs and MMIO regions should be connected/mapped after
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214 | aae9460e | Paul Brook | calling this function. */
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215 | 81a322d4 | Gerd Hoffmann | int qdev_init(DeviceState *dev)
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216 | aae9460e | Paul Brook | { |
217 | 959f733a | Gerd Hoffmann | int rc;
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218 | 959f733a | Gerd Hoffmann | |
219 | 959f733a | Gerd Hoffmann | rc = dev->info->init(dev, dev->info); |
220 | 959f733a | Gerd Hoffmann | if (rc < 0) |
221 | 959f733a | Gerd Hoffmann | return rc;
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222 | 959f733a | Gerd Hoffmann | if (dev->info->reset)
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223 | 959f733a | Gerd Hoffmann | qemu_register_reset(dev->info->reset, dev); |
224 | 391a079e | Gerd Hoffmann | if (dev->info->vmsd)
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225 | 391a079e | Gerd Hoffmann | vmstate_register(-1, dev->info->vmsd, dev);
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226 | 959f733a | Gerd Hoffmann | return 0; |
227 | 02e2da45 | Paul Brook | } |
228 | 02e2da45 | Paul Brook | |
229 | 02e2da45 | Paul Brook | /* Unlink device from bus and free the structure. */
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230 | 02e2da45 | Paul Brook | void qdev_free(DeviceState *dev)
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231 | 02e2da45 | Paul Brook | { |
232 | 391a079e | Gerd Hoffmann | #if 0 /* FIXME: need sane vmstate_unregister function */
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233 | 391a079e | Gerd Hoffmann | if (dev->info->vmsd)
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234 | 391a079e | Gerd Hoffmann | vmstate_unregister(dev->info->vmsd, dev);
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235 | 391a079e | Gerd Hoffmann | #endif
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236 | 959f733a | Gerd Hoffmann | if (dev->info->reset)
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237 | 959f733a | Gerd Hoffmann | qemu_unregister_reset(dev->info->reset, dev); |
238 | 72cf2d4f | Blue Swirl | QLIST_REMOVE(dev, sibling); |
239 | ccb63de3 | Gerd Hoffmann | qemu_free(dev); |
240 | aae9460e | Paul Brook | } |
241 | aae9460e | Paul Brook | |
242 | aae9460e | Paul Brook | /* Get a character (serial) device interface. */
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243 | aae9460e | Paul Brook | CharDriverState *qdev_init_chardev(DeviceState *dev) |
244 | aae9460e | Paul Brook | { |
245 | aae9460e | Paul Brook | static int next_serial; |
246 | aae9460e | Paul Brook | static int next_virtconsole; |
247 | aae9460e | Paul Brook | /* FIXME: This is a nasty hack that needs to go away. */
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248 | 042f84d0 | Gerd Hoffmann | if (strncmp(dev->info->name, "virtio", 6) == 0) { |
249 | aae9460e | Paul Brook | return virtcon_hds[next_virtconsole++];
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250 | aae9460e | Paul Brook | } else {
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251 | aae9460e | Paul Brook | return serial_hds[next_serial++];
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252 | aae9460e | Paul Brook | } |
253 | aae9460e | Paul Brook | } |
254 | aae9460e | Paul Brook | |
255 | 02e2da45 | Paul Brook | BusState *qdev_get_parent_bus(DeviceState *dev) |
256 | aae9460e | Paul Brook | { |
257 | 02e2da45 | Paul Brook | return dev->parent_bus;
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258 | aae9460e | Paul Brook | } |
259 | aae9460e | Paul Brook | |
260 | aae9460e | Paul Brook | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
261 | aae9460e | Paul Brook | { |
262 | aae9460e | Paul Brook | assert(dev->num_gpio_in == 0);
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263 | aae9460e | Paul Brook | dev->num_gpio_in = n; |
264 | aae9460e | Paul Brook | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); |
265 | aae9460e | Paul Brook | } |
266 | aae9460e | Paul Brook | |
267 | aae9460e | Paul Brook | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) |
268 | aae9460e | Paul Brook | { |
269 | aae9460e | Paul Brook | assert(dev->num_gpio_out == 0);
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270 | aae9460e | Paul Brook | dev->num_gpio_out = n; |
271 | aae9460e | Paul Brook | dev->gpio_out = pins; |
272 | aae9460e | Paul Brook | } |
273 | aae9460e | Paul Brook | |
274 | aae9460e | Paul Brook | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n)
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275 | aae9460e | Paul Brook | { |
276 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_in);
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277 | aae9460e | Paul Brook | return dev->gpio_in[n];
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278 | aae9460e | Paul Brook | } |
279 | aae9460e | Paul Brook | |
280 | aae9460e | Paul Brook | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) |
281 | aae9460e | Paul Brook | { |
282 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_out);
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283 | aae9460e | Paul Brook | dev->gpio_out[n] = pin; |
284 | aae9460e | Paul Brook | } |
285 | aae9460e | Paul Brook | |
286 | 9d07d757 | Paul Brook | VLANClientState *qdev_get_vlan_client(DeviceState *dev, |
287 | cda9046b | Mark McLoughlin | NetCanReceive *can_receive, |
288 | cda9046b | Mark McLoughlin | NetReceive *receive, |
289 | cda9046b | Mark McLoughlin | NetReceiveIOV *receive_iov, |
290 | 9d07d757 | Paul Brook | NetCleanup *cleanup, |
291 | 9d07d757 | Paul Brook | void *opaque)
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292 | 9d07d757 | Paul Brook | { |
293 | 9d07d757 | Paul Brook | NICInfo *nd = dev->nd; |
294 | 9d07d757 | Paul Brook | assert(nd); |
295 | ae50b274 | Mark McLoughlin | nd->vc = qemu_new_vlan_client(nd->vlan, nd->model, nd->name, can_receive, |
296 | ae50b274 | Mark McLoughlin | receive, receive_iov, cleanup, opaque); |
297 | ae50b274 | Mark McLoughlin | return nd->vc;
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298 | 9d07d757 | Paul Brook | } |
299 | 9d07d757 | Paul Brook | |
300 | 9d07d757 | Paul Brook | |
301 | 9d07d757 | Paul Brook | void qdev_get_macaddr(DeviceState *dev, uint8_t *macaddr)
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302 | 9d07d757 | Paul Brook | { |
303 | 9d07d757 | Paul Brook | memcpy(macaddr, dev->nd->macaddr, 6);
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304 | 9d07d757 | Paul Brook | } |
305 | 9d07d757 | Paul Brook | |
306 | aae9460e | Paul Brook | static int next_block_unit[IF_COUNT]; |
307 | aae9460e | Paul Brook | |
308 | aae9460e | Paul Brook | /* Get a block device. This should only be used for single-drive devices
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309 | aae9460e | Paul Brook | (e.g. SD/Floppy/MTD). Multi-disk devices (scsi/ide) should use the
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310 | aae9460e | Paul Brook | appropriate bus. */
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311 | aae9460e | Paul Brook | BlockDriverState *qdev_init_bdrv(DeviceState *dev, BlockInterfaceType type) |
312 | aae9460e | Paul Brook | { |
313 | aae9460e | Paul Brook | int unit = next_block_unit[type]++;
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314 | 751c6a17 | Gerd Hoffmann | DriveInfo *dinfo; |
315 | aae9460e | Paul Brook | |
316 | 751c6a17 | Gerd Hoffmann | dinfo = drive_get(type, 0, unit);
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317 | 751c6a17 | Gerd Hoffmann | return dinfo ? dinfo->bdrv : NULL; |
318 | aae9460e | Paul Brook | } |
319 | 4d6ae674 | Paul Brook | |
320 | 02e2da45 | Paul Brook | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
321 | 4d6ae674 | Paul Brook | { |
322 | 02e2da45 | Paul Brook | BusState *bus; |
323 | 4d6ae674 | Paul Brook | |
324 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
325 | 4d6ae674 | Paul Brook | if (strcmp(name, bus->name) == 0) { |
326 | 02e2da45 | Paul Brook | return bus;
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327 | 4d6ae674 | Paul Brook | } |
328 | 4d6ae674 | Paul Brook | } |
329 | 4d6ae674 | Paul Brook | return NULL; |
330 | 4d6ae674 | Paul Brook | } |
331 | 4d6ae674 | Paul Brook | |
332 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
333 | 8ffb1bcf | Gerd Hoffmann | const BusInfo *info)
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334 | 8ffb1bcf | Gerd Hoffmann | { |
335 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
336 | 8ffb1bcf | Gerd Hoffmann | BusState *child, *ret; |
337 | 8ffb1bcf | Gerd Hoffmann | int match = 1; |
338 | 8ffb1bcf | Gerd Hoffmann | |
339 | 8ffb1bcf | Gerd Hoffmann | if (name && (strcmp(bus->name, name) != 0)) { |
340 | 8ffb1bcf | Gerd Hoffmann | match = 0;
|
341 | 8ffb1bcf | Gerd Hoffmann | } |
342 | 8ffb1bcf | Gerd Hoffmann | if (info && (bus->info != info)) {
|
343 | 8ffb1bcf | Gerd Hoffmann | match = 0;
|
344 | 8ffb1bcf | Gerd Hoffmann | } |
345 | 8ffb1bcf | Gerd Hoffmann | if (match) {
|
346 | 8ffb1bcf | Gerd Hoffmann | return bus;
|
347 | 8ffb1bcf | Gerd Hoffmann | } |
348 | 8ffb1bcf | Gerd Hoffmann | |
349 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
350 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
351 | 8ffb1bcf | Gerd Hoffmann | ret = qbus_find_recursive(child, name, info); |
352 | 8ffb1bcf | Gerd Hoffmann | if (ret) {
|
353 | 8ffb1bcf | Gerd Hoffmann | return ret;
|
354 | 8ffb1bcf | Gerd Hoffmann | } |
355 | 8ffb1bcf | Gerd Hoffmann | } |
356 | 8ffb1bcf | Gerd Hoffmann | } |
357 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
358 | 8ffb1bcf | Gerd Hoffmann | } |
359 | 8ffb1bcf | Gerd Hoffmann | |
360 | 8ffb1bcf | Gerd Hoffmann | static void qbus_list_bus(DeviceState *dev, char *dest, int len) |
361 | 8ffb1bcf | Gerd Hoffmann | { |
362 | 8ffb1bcf | Gerd Hoffmann | BusState *child; |
363 | 8ffb1bcf | Gerd Hoffmann | const char *sep = " "; |
364 | 8ffb1bcf | Gerd Hoffmann | int pos = 0; |
365 | 8ffb1bcf | Gerd Hoffmann | |
366 | 8ffb1bcf | Gerd Hoffmann | pos += snprintf(dest+pos, len-pos,"child busses at \"%s\":",
|
367 | 8ffb1bcf | Gerd Hoffmann | dev->id ? dev->id : dev->info->name); |
368 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
369 | 8ffb1bcf | Gerd Hoffmann | pos += snprintf(dest+pos, len-pos, "%s\"%s\"", sep, child->name);
|
370 | 8ffb1bcf | Gerd Hoffmann | sep = ", ";
|
371 | 8ffb1bcf | Gerd Hoffmann | } |
372 | 8ffb1bcf | Gerd Hoffmann | } |
373 | 8ffb1bcf | Gerd Hoffmann | |
374 | 8ffb1bcf | Gerd Hoffmann | static void qbus_list_dev(BusState *bus, char *dest, int len) |
375 | 8ffb1bcf | Gerd Hoffmann | { |
376 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
377 | 8ffb1bcf | Gerd Hoffmann | const char *sep = " "; |
378 | 8ffb1bcf | Gerd Hoffmann | int pos = 0; |
379 | 8ffb1bcf | Gerd Hoffmann | |
380 | 8ffb1bcf | Gerd Hoffmann | pos += snprintf(dest+pos, len-pos, "devices at \"%s\":",
|
381 | 8ffb1bcf | Gerd Hoffmann | bus->name); |
382 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
383 | 8ffb1bcf | Gerd Hoffmann | pos += snprintf(dest+pos, len-pos, "%s\"%s\"",
|
384 | 8ffb1bcf | Gerd Hoffmann | sep, dev->info->name); |
385 | 8ffb1bcf | Gerd Hoffmann | if (dev->id)
|
386 | 8ffb1bcf | Gerd Hoffmann | pos += snprintf(dest+pos, len-pos, "/\"%s\"", dev->id);
|
387 | 8ffb1bcf | Gerd Hoffmann | sep = ", ";
|
388 | 8ffb1bcf | Gerd Hoffmann | } |
389 | 8ffb1bcf | Gerd Hoffmann | } |
390 | 8ffb1bcf | Gerd Hoffmann | |
391 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find_bus(DeviceState *dev, char *elem) |
392 | 8ffb1bcf | Gerd Hoffmann | { |
393 | 8ffb1bcf | Gerd Hoffmann | BusState *child; |
394 | 8ffb1bcf | Gerd Hoffmann | |
395 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
396 | 8ffb1bcf | Gerd Hoffmann | if (strcmp(child->name, elem) == 0) { |
397 | 8ffb1bcf | Gerd Hoffmann | return child;
|
398 | 8ffb1bcf | Gerd Hoffmann | } |
399 | 8ffb1bcf | Gerd Hoffmann | } |
400 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
401 | 8ffb1bcf | Gerd Hoffmann | } |
402 | 8ffb1bcf | Gerd Hoffmann | |
403 | 8ffb1bcf | Gerd Hoffmann | static DeviceState *qbus_find_dev(BusState *bus, char *elem) |
404 | 8ffb1bcf | Gerd Hoffmann | { |
405 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
406 | 8ffb1bcf | Gerd Hoffmann | |
407 | 8ffb1bcf | Gerd Hoffmann | /*
|
408 | 8ffb1bcf | Gerd Hoffmann | * try to match in order:
|
409 | 8ffb1bcf | Gerd Hoffmann | * (1) instance id, if present
|
410 | 8ffb1bcf | Gerd Hoffmann | * (2) driver name
|
411 | 8ffb1bcf | Gerd Hoffmann | * (3) driver alias, if present
|
412 | 8ffb1bcf | Gerd Hoffmann | */
|
413 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
414 | 8ffb1bcf | Gerd Hoffmann | if (dev->id && strcmp(dev->id, elem) == 0) { |
415 | 8ffb1bcf | Gerd Hoffmann | return dev;
|
416 | 8ffb1bcf | Gerd Hoffmann | } |
417 | 8ffb1bcf | Gerd Hoffmann | } |
418 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
419 | 8ffb1bcf | Gerd Hoffmann | if (strcmp(dev->info->name, elem) == 0) { |
420 | 8ffb1bcf | Gerd Hoffmann | return dev;
|
421 | 8ffb1bcf | Gerd Hoffmann | } |
422 | 8ffb1bcf | Gerd Hoffmann | } |
423 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
424 | 8ffb1bcf | Gerd Hoffmann | if (dev->info->alias && strcmp(dev->info->alias, elem) == 0) { |
425 | 8ffb1bcf | Gerd Hoffmann | return dev;
|
426 | 8ffb1bcf | Gerd Hoffmann | } |
427 | 8ffb1bcf | Gerd Hoffmann | } |
428 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
429 | 8ffb1bcf | Gerd Hoffmann | } |
430 | 8ffb1bcf | Gerd Hoffmann | |
431 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find(const char *path) |
432 | 8ffb1bcf | Gerd Hoffmann | { |
433 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
434 | 8ffb1bcf | Gerd Hoffmann | BusState *bus; |
435 | 8ffb1bcf | Gerd Hoffmann | char elem[128], msg[256]; |
436 | 8ffb1bcf | Gerd Hoffmann | int pos, len;
|
437 | 8ffb1bcf | Gerd Hoffmann | |
438 | 8ffb1bcf | Gerd Hoffmann | /* find start element */
|
439 | 8ffb1bcf | Gerd Hoffmann | if (path[0] == '/') { |
440 | 8ffb1bcf | Gerd Hoffmann | bus = main_system_bus; |
441 | 8ffb1bcf | Gerd Hoffmann | pos = 0;
|
442 | 8ffb1bcf | Gerd Hoffmann | } else {
|
443 | 8ffb1bcf | Gerd Hoffmann | if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { |
444 | 286c2321 | Gerd Hoffmann | qemu_error("path parse error (\"%s\")\n", path);
|
445 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
446 | 8ffb1bcf | Gerd Hoffmann | } |
447 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find_recursive(main_system_bus, elem, NULL);
|
448 | 8ffb1bcf | Gerd Hoffmann | if (!bus) {
|
449 | 286c2321 | Gerd Hoffmann | qemu_error("bus \"%s\" not found\n", elem);
|
450 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
451 | 8ffb1bcf | Gerd Hoffmann | } |
452 | 8ffb1bcf | Gerd Hoffmann | pos = len; |
453 | 8ffb1bcf | Gerd Hoffmann | } |
454 | 8ffb1bcf | Gerd Hoffmann | |
455 | 8ffb1bcf | Gerd Hoffmann | for (;;) {
|
456 | 8ffb1bcf | Gerd Hoffmann | if (path[pos] == '\0') { |
457 | 8ffb1bcf | Gerd Hoffmann | /* we are done */
|
458 | 8ffb1bcf | Gerd Hoffmann | return bus;
|
459 | 8ffb1bcf | Gerd Hoffmann | } |
460 | 8ffb1bcf | Gerd Hoffmann | |
461 | 8ffb1bcf | Gerd Hoffmann | /* find device */
|
462 | 8ffb1bcf | Gerd Hoffmann | if (sscanf(path+pos, "/%127[^/]%n", elem, &len) != 1) { |
463 | 286c2321 | Gerd Hoffmann | qemu_error("path parse error (\"%s\" pos %d)\n", path, pos);
|
464 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
465 | 8ffb1bcf | Gerd Hoffmann | } |
466 | 8ffb1bcf | Gerd Hoffmann | pos += len; |
467 | 8ffb1bcf | Gerd Hoffmann | dev = qbus_find_dev(bus, elem); |
468 | 8ffb1bcf | Gerd Hoffmann | if (!dev) {
|
469 | 8ffb1bcf | Gerd Hoffmann | qbus_list_dev(bus, msg, sizeof(msg));
|
470 | 286c2321 | Gerd Hoffmann | qemu_error("device \"%s\" not found\n%s\n", elem, msg);
|
471 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
472 | 8ffb1bcf | Gerd Hoffmann | } |
473 | 8ffb1bcf | Gerd Hoffmann | if (path[pos] == '\0') { |
474 | 8ffb1bcf | Gerd Hoffmann | /* last specified element is a device. If it has exactly
|
475 | 8ffb1bcf | Gerd Hoffmann | * one child bus accept it nevertheless */
|
476 | 8ffb1bcf | Gerd Hoffmann | switch (dev->num_child_bus) {
|
477 | 8ffb1bcf | Gerd Hoffmann | case 0: |
478 | 286c2321 | Gerd Hoffmann | qemu_error("device has no child bus (%s)\n", path);
|
479 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
480 | 8ffb1bcf | Gerd Hoffmann | case 1: |
481 | 72cf2d4f | Blue Swirl | return QLIST_FIRST(&dev->child_bus);
|
482 | 8ffb1bcf | Gerd Hoffmann | default:
|
483 | 8ffb1bcf | Gerd Hoffmann | qbus_list_bus(dev, msg, sizeof(msg));
|
484 | 286c2321 | Gerd Hoffmann | qemu_error("device has multiple child busses (%s)\n%s\n",
|
485 | 286c2321 | Gerd Hoffmann | path, msg); |
486 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
487 | 8ffb1bcf | Gerd Hoffmann | } |
488 | 8ffb1bcf | Gerd Hoffmann | } |
489 | 8ffb1bcf | Gerd Hoffmann | |
490 | 8ffb1bcf | Gerd Hoffmann | /* find bus */
|
491 | 8ffb1bcf | Gerd Hoffmann | if (sscanf(path+pos, "/%127[^/]%n", elem, &len) != 1) { |
492 | 286c2321 | Gerd Hoffmann | qemu_error("path parse error (\"%s\" pos %d)\n", path, pos);
|
493 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
494 | 8ffb1bcf | Gerd Hoffmann | } |
495 | 8ffb1bcf | Gerd Hoffmann | pos += len; |
496 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find_bus(dev, elem); |
497 | 8ffb1bcf | Gerd Hoffmann | if (!bus) {
|
498 | 8ffb1bcf | Gerd Hoffmann | qbus_list_bus(dev, msg, sizeof(msg));
|
499 | 286c2321 | Gerd Hoffmann | qemu_error("child bus \"%s\" not found\n%s\n", elem, msg);
|
500 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
501 | 8ffb1bcf | Gerd Hoffmann | } |
502 | 8ffb1bcf | Gerd Hoffmann | } |
503 | 8ffb1bcf | Gerd Hoffmann | } |
504 | 8ffb1bcf | Gerd Hoffmann | |
505 | 10c4c98a | Gerd Hoffmann | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) |
506 | 02e2da45 | Paul Brook | { |
507 | 02e2da45 | Paul Brook | BusState *bus; |
508 | d271de9f | Gerd Hoffmann | char *buf;
|
509 | d271de9f | Gerd Hoffmann | int i,len;
|
510 | 02e2da45 | Paul Brook | |
511 | 10c4c98a | Gerd Hoffmann | bus = qemu_mallocz(info->size); |
512 | 10c4c98a | Gerd Hoffmann | bus->info = info; |
513 | 02e2da45 | Paul Brook | bus->parent = parent; |
514 | d271de9f | Gerd Hoffmann | |
515 | d271de9f | Gerd Hoffmann | if (name) {
|
516 | d271de9f | Gerd Hoffmann | /* use supplied name */
|
517 | d271de9f | Gerd Hoffmann | bus->name = qemu_strdup(name); |
518 | d271de9f | Gerd Hoffmann | } else if (parent && parent->id) { |
519 | d271de9f | Gerd Hoffmann | /* parent device has id -> use it for bus name */
|
520 | d271de9f | Gerd Hoffmann | len = strlen(parent->id) + 16;
|
521 | d271de9f | Gerd Hoffmann | buf = qemu_malloc(len); |
522 | d271de9f | Gerd Hoffmann | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus);
|
523 | d271de9f | Gerd Hoffmann | bus->name = buf; |
524 | d271de9f | Gerd Hoffmann | } else {
|
525 | d271de9f | Gerd Hoffmann | /* no id -> use lowercase bus type for bus name */
|
526 | d271de9f | Gerd Hoffmann | len = strlen(info->name) + 16;
|
527 | d271de9f | Gerd Hoffmann | buf = qemu_malloc(len); |
528 | d271de9f | Gerd Hoffmann | len = snprintf(buf, len, "%s.%d", info->name,
|
529 | d271de9f | Gerd Hoffmann | parent ? parent->num_child_bus : 0);
|
530 | d271de9f | Gerd Hoffmann | for (i = 0; i < len; i++) |
531 | bb87ece5 | Christoph Egger | buf[i] = qemu_tolower(buf[i]); |
532 | d271de9f | Gerd Hoffmann | bus->name = buf; |
533 | d271de9f | Gerd Hoffmann | } |
534 | d271de9f | Gerd Hoffmann | |
535 | 72cf2d4f | Blue Swirl | QLIST_INIT(&bus->children); |
536 | 02e2da45 | Paul Brook | if (parent) {
|
537 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
538 | d271de9f | Gerd Hoffmann | parent->num_child_bus++; |
539 | 02e2da45 | Paul Brook | } |
540 | 02e2da45 | Paul Brook | return bus;
|
541 | 02e2da45 | Paul Brook | } |
542 | cae4956e | Gerd Hoffmann | |
543 | cae4956e | Gerd Hoffmann | #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) |
544 | cae4956e | Gerd Hoffmann | static void qbus_print(Monitor *mon, BusState *bus, int indent); |
545 | cae4956e | Gerd Hoffmann | |
546 | ee6847d1 | Gerd Hoffmann | static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, |
547 | ee6847d1 | Gerd Hoffmann | const char *prefix, int indent) |
548 | ee6847d1 | Gerd Hoffmann | { |
549 | ee6847d1 | Gerd Hoffmann | char buf[64]; |
550 | ee6847d1 | Gerd Hoffmann | |
551 | ee6847d1 | Gerd Hoffmann | if (!props)
|
552 | ee6847d1 | Gerd Hoffmann | return;
|
553 | ee6847d1 | Gerd Hoffmann | while (props->name) {
|
554 | ee6847d1 | Gerd Hoffmann | if (props->info->print) {
|
555 | ee6847d1 | Gerd Hoffmann | props->info->print(dev, props, buf, sizeof(buf));
|
556 | ee6847d1 | Gerd Hoffmann | qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf);
|
557 | ee6847d1 | Gerd Hoffmann | } |
558 | ee6847d1 | Gerd Hoffmann | props++; |
559 | ee6847d1 | Gerd Hoffmann | } |
560 | ee6847d1 | Gerd Hoffmann | } |
561 | ee6847d1 | Gerd Hoffmann | |
562 | cae4956e | Gerd Hoffmann | static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
563 | cae4956e | Gerd Hoffmann | { |
564 | cae4956e | Gerd Hoffmann | BusState *child; |
565 | ccb63de3 | Gerd Hoffmann | qdev_printf("dev: %s, id \"%s\"\n", dev->info->name,
|
566 | ccb63de3 | Gerd Hoffmann | dev->id ? dev->id : "");
|
567 | cae4956e | Gerd Hoffmann | indent += 2;
|
568 | cae4956e | Gerd Hoffmann | if (dev->num_gpio_in) {
|
569 | cae4956e | Gerd Hoffmann | qdev_printf("gpio-in %d\n", dev->num_gpio_in);
|
570 | cae4956e | Gerd Hoffmann | } |
571 | cae4956e | Gerd Hoffmann | if (dev->num_gpio_out) {
|
572 | cae4956e | Gerd Hoffmann | qdev_printf("gpio-out %d\n", dev->num_gpio_out);
|
573 | cae4956e | Gerd Hoffmann | } |
574 | ee6847d1 | Gerd Hoffmann | qdev_print_props(mon, dev, dev->info->props, "dev", indent);
|
575 | ee6847d1 | Gerd Hoffmann | qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent);
|
576 | 10c4c98a | Gerd Hoffmann | if (dev->parent_bus->info->print_dev)
|
577 | 10c4c98a | Gerd Hoffmann | dev->parent_bus->info->print_dev(mon, dev, indent); |
578 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
579 | cae4956e | Gerd Hoffmann | qbus_print(mon, child, indent); |
580 | cae4956e | Gerd Hoffmann | } |
581 | cae4956e | Gerd Hoffmann | } |
582 | cae4956e | Gerd Hoffmann | |
583 | cae4956e | Gerd Hoffmann | static void qbus_print(Monitor *mon, BusState *bus, int indent) |
584 | cae4956e | Gerd Hoffmann | { |
585 | cae4956e | Gerd Hoffmann | struct DeviceState *dev;
|
586 | cae4956e | Gerd Hoffmann | |
587 | cae4956e | Gerd Hoffmann | qdev_printf("bus: %s\n", bus->name);
|
588 | cae4956e | Gerd Hoffmann | indent += 2;
|
589 | 10c4c98a | Gerd Hoffmann | qdev_printf("type %s\n", bus->info->name);
|
590 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
591 | cae4956e | Gerd Hoffmann | qdev_print(mon, dev, indent); |
592 | cae4956e | Gerd Hoffmann | } |
593 | cae4956e | Gerd Hoffmann | } |
594 | cae4956e | Gerd Hoffmann | #undef qdev_printf
|
595 | cae4956e | Gerd Hoffmann | |
596 | cae4956e | Gerd Hoffmann | void do_info_qtree(Monitor *mon)
|
597 | cae4956e | Gerd Hoffmann | { |
598 | cae4956e | Gerd Hoffmann | if (main_system_bus)
|
599 | cae4956e | Gerd Hoffmann | qbus_print(mon, main_system_bus, 0);
|
600 | cae4956e | Gerd Hoffmann | } |
601 | 9316d30f | Gerd Hoffmann | |
602 | f6c64e0e | Gerd Hoffmann | void do_info_qdm(Monitor *mon)
|
603 | 9316d30f | Gerd Hoffmann | { |
604 | 9316d30f | Gerd Hoffmann | DeviceInfo *info; |
605 | 9316d30f | Gerd Hoffmann | char msg[256]; |
606 | 9316d30f | Gerd Hoffmann | |
607 | 9316d30f | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
608 | 9316d30f | Gerd Hoffmann | qdev_print_devinfo(info, msg, sizeof(msg));
|
609 | 9316d30f | Gerd Hoffmann | monitor_printf(mon, "%s\n", msg);
|
610 | 9316d30f | Gerd Hoffmann | } |
611 | 9316d30f | Gerd Hoffmann | } |