root / hw / qdev.h @ 6b35e7bf
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1 | aae9460e | Paul Brook | #ifndef QDEV_H
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2 | aae9460e | Paul Brook | #define QDEV_H
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3 | aae9460e | Paul Brook | |
4 | aae9460e | Paul Brook | #include "hw.h" |
5 | 14b41872 | Gerd Hoffmann | #include "sysemu.h" |
6 | 02e2da45 | Paul Brook | #include "sys-queue.h" |
7 | 313feaab | Gerd Hoffmann | #include "qemu-char.h" |
8 | f31d07d1 | Gerd Hoffmann | #include "qemu-option.h" |
9 | aae9460e | Paul Brook | |
10 | ee6847d1 | Gerd Hoffmann | typedef struct Property Property; |
11 | ee6847d1 | Gerd Hoffmann | |
12 | ee6847d1 | Gerd Hoffmann | typedef struct PropertyInfo PropertyInfo; |
13 | aae9460e | Paul Brook | |
14 | b6b61144 | Gerd Hoffmann | typedef struct CompatProperty CompatProperty; |
15 | b6b61144 | Gerd Hoffmann | |
16 | ee6847d1 | Gerd Hoffmann | typedef struct DeviceInfo DeviceInfo; |
17 | aae9460e | Paul Brook | |
18 | 02e2da45 | Paul Brook | typedef struct BusState BusState; |
19 | 4d6ae674 | Paul Brook | |
20 | 10c4c98a | Gerd Hoffmann | typedef struct BusInfo BusInfo; |
21 | 10c4c98a | Gerd Hoffmann | |
22 | aae9460e | Paul Brook | /* This structure should not be accessed directly. We declare it here
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23 | aae9460e | Paul Brook | so that it can be embedded in individual device state structures. */
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24 | 02e2da45 | Paul Brook | struct DeviceState {
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25 | f31d07d1 | Gerd Hoffmann | const char *id; |
26 | 042f84d0 | Gerd Hoffmann | DeviceInfo *info; |
27 | 02e2da45 | Paul Brook | BusState *parent_bus; |
28 | aae9460e | Paul Brook | int num_gpio_out;
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29 | aae9460e | Paul Brook | qemu_irq *gpio_out; |
30 | aae9460e | Paul Brook | int num_gpio_in;
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31 | aae9460e | Paul Brook | qemu_irq *gpio_in; |
32 | 02e2da45 | Paul Brook | LIST_HEAD(, BusState) child_bus; |
33 | d271de9f | Gerd Hoffmann | int num_child_bus;
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34 | 9d07d757 | Paul Brook | NICInfo *nd; |
35 | 02e2da45 | Paul Brook | LIST_ENTRY(DeviceState) sibling; |
36 | 02e2da45 | Paul Brook | }; |
37 | 02e2da45 | Paul Brook | |
38 | 10c4c98a | Gerd Hoffmann | typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent); |
39 | 10c4c98a | Gerd Hoffmann | struct BusInfo {
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40 | 10c4c98a | Gerd Hoffmann | const char *name; |
41 | 10c4c98a | Gerd Hoffmann | size_t size; |
42 | 10c4c98a | Gerd Hoffmann | bus_dev_printfn print_dev; |
43 | ee6847d1 | Gerd Hoffmann | Property *props; |
44 | 10c4c98a | Gerd Hoffmann | }; |
45 | 02e2da45 | Paul Brook | |
46 | 02e2da45 | Paul Brook | struct BusState {
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47 | 02e2da45 | Paul Brook | DeviceState *parent; |
48 | 10c4c98a | Gerd Hoffmann | BusInfo *info; |
49 | 02e2da45 | Paul Brook | const char *name; |
50 | 02e2da45 | Paul Brook | LIST_HEAD(, DeviceState) children; |
51 | 02e2da45 | Paul Brook | LIST_ENTRY(BusState) sibling; |
52 | aae9460e | Paul Brook | }; |
53 | aae9460e | Paul Brook | |
54 | ee6847d1 | Gerd Hoffmann | struct Property {
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55 | ee6847d1 | Gerd Hoffmann | const char *name; |
56 | ee6847d1 | Gerd Hoffmann | PropertyInfo *info; |
57 | ee6847d1 | Gerd Hoffmann | int offset;
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58 | ee6847d1 | Gerd Hoffmann | void *defval;
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59 | ee6847d1 | Gerd Hoffmann | }; |
60 | ee6847d1 | Gerd Hoffmann | |
61 | ee6847d1 | Gerd Hoffmann | enum PropertyType {
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62 | ee6847d1 | Gerd Hoffmann | PROP_TYPE_UNSPEC = 0,
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63 | ee6847d1 | Gerd Hoffmann | PROP_TYPE_UINT16, |
64 | ee6847d1 | Gerd Hoffmann | PROP_TYPE_UINT32, |
65 | 5a053d1f | Blue Swirl | PROP_TYPE_UINT64, |
66 | ee6847d1 | Gerd Hoffmann | PROP_TYPE_TADDR, |
67 | ee6847d1 | Gerd Hoffmann | PROP_TYPE_MACADDR, |
68 | 14b41872 | Gerd Hoffmann | PROP_TYPE_DRIVE, |
69 | 313feaab | Gerd Hoffmann | PROP_TYPE_CHR, |
70 | ee6847d1 | Gerd Hoffmann | PROP_TYPE_PTR, |
71 | ee6847d1 | Gerd Hoffmann | }; |
72 | ee6847d1 | Gerd Hoffmann | |
73 | ee6847d1 | Gerd Hoffmann | struct PropertyInfo {
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74 | ee6847d1 | Gerd Hoffmann | const char *name; |
75 | ee6847d1 | Gerd Hoffmann | size_t size; |
76 | ee6847d1 | Gerd Hoffmann | enum PropertyType type;
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77 | ee6847d1 | Gerd Hoffmann | int (*parse)(DeviceState *dev, Property *prop, const char *str); |
78 | ee6847d1 | Gerd Hoffmann | int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len); |
79 | ee6847d1 | Gerd Hoffmann | }; |
80 | ee6847d1 | Gerd Hoffmann | |
81 | b6b61144 | Gerd Hoffmann | struct CompatProperty {
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82 | b6b61144 | Gerd Hoffmann | const char *driver; |
83 | b6b61144 | Gerd Hoffmann | const char *property; |
84 | b6b61144 | Gerd Hoffmann | const char *value; |
85 | b6b61144 | Gerd Hoffmann | }; |
86 | b6b61144 | Gerd Hoffmann | |
87 | aae9460e | Paul Brook | /*** Board API. This should go away once we have a machine config file. ***/
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88 | aae9460e | Paul Brook | |
89 | 02e2da45 | Paul Brook | DeviceState *qdev_create(BusState *bus, const char *name); |
90 | f31d07d1 | Gerd Hoffmann | DeviceState *qdev_device_add(QemuOpts *opts); |
91 | aae9460e | Paul Brook | void qdev_init(DeviceState *dev);
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92 | 02e2da45 | Paul Brook | void qdev_free(DeviceState *dev);
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93 | aae9460e | Paul Brook | |
94 | aae9460e | Paul Brook | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
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95 | aae9460e | Paul Brook | void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin); |
96 | aae9460e | Paul Brook | |
97 | 02e2da45 | Paul Brook | BusState *qdev_get_child_bus(DeviceState *dev, const char *name); |
98 | 4d6ae674 | Paul Brook | |
99 | aae9460e | Paul Brook | /*** Device API. ***/
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100 | aae9460e | Paul Brook | |
101 | 02e2da45 | Paul Brook | typedef void (*qdev_initfn)(DeviceState *dev, DeviceInfo *info); |
102 | 6f68ecb2 | Paul Brook | typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv, |
103 | 6f68ecb2 | Paul Brook | int unit);
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104 | aae9460e | Paul Brook | |
105 | 02e2da45 | Paul Brook | struct DeviceInfo {
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106 | 074f2fff | Gerd Hoffmann | const char *name; |
107 | 3320e56e | Gerd Hoffmann | const char *alias; |
108 | 3320e56e | Gerd Hoffmann | const char *desc; |
109 | 074f2fff | Gerd Hoffmann | size_t size; |
110 | ee6847d1 | Gerd Hoffmann | Property *props; |
111 | 3320e56e | Gerd Hoffmann | int no_user;
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112 | 074f2fff | Gerd Hoffmann | |
113 | 074f2fff | Gerd Hoffmann | /* Private to qdev / bus. */
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114 | 02e2da45 | Paul Brook | qdev_initfn init; |
115 | 10c4c98a | Gerd Hoffmann | BusInfo *bus_info; |
116 | 042f84d0 | Gerd Hoffmann | struct DeviceInfo *next;
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117 | 02e2da45 | Paul Brook | }; |
118 | 02e2da45 | Paul Brook | |
119 | 074f2fff | Gerd Hoffmann | void qdev_register(DeviceInfo *info);
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120 | aae9460e | Paul Brook | |
121 | aae9460e | Paul Brook | /* Register device properties. */
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122 | 067a3ddc | Paul Brook | /* GPIO inputs also double as IRQ sinks. */
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123 | aae9460e | Paul Brook | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n); |
124 | aae9460e | Paul Brook | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n); |
125 | aae9460e | Paul Brook | |
126 | 6f68ecb2 | Paul Brook | void scsi_bus_new(DeviceState *host, SCSIAttachFn attach);
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127 | 6f68ecb2 | Paul Brook | |
128 | aae9460e | Paul Brook | CharDriverState *qdev_init_chardev(DeviceState *dev); |
129 | aae9460e | Paul Brook | |
130 | 02e2da45 | Paul Brook | BusState *qdev_get_parent_bus(DeviceState *dev); |
131 | aae9460e | Paul Brook | |
132 | aae9460e | Paul Brook | /* Convery from a base type to a parent type, with compile time checking. */
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133 | aae9460e | Paul Brook | #ifdef __GNUC__
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134 | aae9460e | Paul Brook | #define DO_UPCAST(type, field, dev) ( __extension__ ( { \
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135 | aae9460e | Paul Brook | char __attribute__((unused)) offset_must_be_zero[ \
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136 | aae9460e | Paul Brook | -offsetof(type, field)]; \ |
137 | aae9460e | Paul Brook | container_of(dev, type, field);})) |
138 | aae9460e | Paul Brook | #else
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139 | aae9460e | Paul Brook | #define DO_UPCAST(type, field, dev) container_of(dev, type, field)
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140 | aae9460e | Paul Brook | #endif
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141 | aae9460e | Paul Brook | |
142 | 02e2da45 | Paul Brook | /*** BUS API. ***/
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143 | 02e2da45 | Paul Brook | |
144 | 10c4c98a | Gerd Hoffmann | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name); |
145 | 02e2da45 | Paul Brook | |
146 | 02e2da45 | Paul Brook | #define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev)
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147 | 02e2da45 | Paul Brook | |
148 | cae4956e | Gerd Hoffmann | /*** monitor commands ***/
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149 | cae4956e | Gerd Hoffmann | |
150 | cae4956e | Gerd Hoffmann | void do_info_qtree(Monitor *mon);
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151 | f6c64e0e | Gerd Hoffmann | void do_info_qdm(Monitor *mon);
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152 | cae4956e | Gerd Hoffmann | |
153 | ee6847d1 | Gerd Hoffmann | /*** qdev-properties.c ***/
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154 | ee6847d1 | Gerd Hoffmann | |
155 | ee6847d1 | Gerd Hoffmann | extern PropertyInfo qdev_prop_uint16;
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156 | ee6847d1 | Gerd Hoffmann | extern PropertyInfo qdev_prop_uint32;
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157 | 5a053d1f | Blue Swirl | extern PropertyInfo qdev_prop_uint64;
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158 | ee6847d1 | Gerd Hoffmann | extern PropertyInfo qdev_prop_hex32;
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159 | 5a053d1f | Blue Swirl | extern PropertyInfo qdev_prop_hex64;
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160 | 313feaab | Gerd Hoffmann | extern PropertyInfo qdev_prop_chr;
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161 | ee6847d1 | Gerd Hoffmann | extern PropertyInfo qdev_prop_ptr;
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162 | ee6847d1 | Gerd Hoffmann | extern PropertyInfo qdev_prop_macaddr;
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163 | 14b41872 | Gerd Hoffmann | extern PropertyInfo qdev_prop_drive;
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164 | 05cb5fe4 | Gerd Hoffmann | extern PropertyInfo qdev_prop_pci_devfn;
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165 | ee6847d1 | Gerd Hoffmann | |
166 | cf12b95b | Gerd Hoffmann | #define typeof_field(type, field) typeof(((type *)0)->field) |
167 | cf12b95b | Gerd Hoffmann | #define type_check(t1,t2) ((t1*)0 - (t2*)0) |
168 | cf12b95b | Gerd Hoffmann | |
169 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
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170 | cf12b95b | Gerd Hoffmann | .name = (_name), \ |
171 | cf12b95b | Gerd Hoffmann | .info = &(_prop), \ |
172 | cf12b95b | Gerd Hoffmann | .offset = offsetof(_state, _field) \ |
173 | cf12b95b | Gerd Hoffmann | + type_check(_type,typeof_field(_state, _field)), \ |
174 | cf12b95b | Gerd Hoffmann | } |
175 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_DEFAULT(_name, _state, _field, _defval, _prop, _type) { \
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176 | cf12b95b | Gerd Hoffmann | .name = (_name), \ |
177 | cf12b95b | Gerd Hoffmann | .info = &(_prop), \ |
178 | cf12b95b | Gerd Hoffmann | .offset = offsetof(_state, _field) \ |
179 | cf12b95b | Gerd Hoffmann | + type_check(_type,typeof_field(_state, _field)), \ |
180 | cf12b95b | Gerd Hoffmann | .defval = (_type[]) { _defval }, \ |
181 | cf12b95b | Gerd Hoffmann | } |
182 | cf12b95b | Gerd Hoffmann | |
183 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_UINT16(_n, _s, _f, _d) \
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184 | cf12b95b | Gerd Hoffmann | DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint16, uint16_t) |
185 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_UINT32(_n, _s, _f, _d) \
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186 | cf12b95b | Gerd Hoffmann | DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint32, uint32_t) |
187 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_UINT64(_n, _s, _f, _d) \
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188 | cf12b95b | Gerd Hoffmann | DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint64, uint64_t) |
189 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_HEX32(_n, _s, _f, _d) \
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190 | cf12b95b | Gerd Hoffmann | DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex32, uint32_t) |
191 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_HEX64(_n, _s, _f, _d) \
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192 | cf12b95b | Gerd Hoffmann | DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex64, uint64_t) |
193 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \
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194 | cf12b95b | Gerd Hoffmann | DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, uint32_t) |
195 | cf12b95b | Gerd Hoffmann | |
196 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_PTR(_n, _s, _f) \
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197 | cf12b95b | Gerd Hoffmann | DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)
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198 | 313feaab | Gerd Hoffmann | #define DEFINE_PROP_CHR(_n, _s, _f) \
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199 | 313feaab | Gerd Hoffmann | DEFINE_PROP(_n, _s, _f, qdev_prop_chr, CharDriverState*) |
200 | f6c64e0e | Gerd Hoffmann | #define DEFINE_PROP_DRIVE(_n, _s, _f) \
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201 | c981d39c | Anthony Liguori | DEFINE_PROP(_n, _s, _f, qdev_prop_drive, DriveInfo*) |
202 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_MACADDR(_n, _s, _f) \
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203 | cf12b95b | Gerd Hoffmann | DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, uint8_t[6])
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204 | cf12b95b | Gerd Hoffmann | |
205 | cf12b95b | Gerd Hoffmann | #define DEFINE_PROP_END_OF_LIST() \
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206 | cf12b95b | Gerd Hoffmann | {} |
207 | cf12b95b | Gerd Hoffmann | |
208 | ee6847d1 | Gerd Hoffmann | /* Set properties between creation and init. */
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209 | ee6847d1 | Gerd Hoffmann | void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
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210 | ee6847d1 | Gerd Hoffmann | int qdev_prop_parse(DeviceState *dev, const char *name, const char *value); |
211 | ee6847d1 | Gerd Hoffmann | void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type); |
212 | ee6847d1 | Gerd Hoffmann | void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value); |
213 | ee6847d1 | Gerd Hoffmann | void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value); |
214 | 5a053d1f | Blue Swirl | void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value); |
215 | 313feaab | Gerd Hoffmann | void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value); |
216 | 14b41872 | Gerd Hoffmann | void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value); |
217 | ee6847d1 | Gerd Hoffmann | /* FIXME: Remove opaque pointer properties. */
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218 | ee6847d1 | Gerd Hoffmann | void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value); |
219 | ee6847d1 | Gerd Hoffmann | void qdev_prop_set_defaults(DeviceState *dev, Property *props);
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220 | ee6847d1 | Gerd Hoffmann | |
221 | b6b61144 | Gerd Hoffmann | void qdev_prop_register_compat(CompatProperty *props);
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222 | b6b61144 | Gerd Hoffmann | void qdev_prop_set_compat(DeviceState *dev);
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223 | b6b61144 | Gerd Hoffmann | |
224 | a9ff9df1 | Blue Swirl | /* This is a nasty hack to allow passing a NULL bus to qdev_create. */
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225 | a9ff9df1 | Blue Swirl | extern struct BusInfo system_bus_info; |
226 | a9ff9df1 | Blue Swirl | |
227 | aae9460e | Paul Brook | #endif |