1 #ifndef QEMU_QDEV_PROPERTIES_H
2 #define QEMU_QDEV_PROPERTIES_H
4 #include "hw/qdev-core.h"
6 /*** qdev-properties.c ***/
8 extern PropertyInfo qdev_prop_bit;
9 extern PropertyInfo qdev_prop_bit64;
10 extern PropertyInfo qdev_prop_bool;
11 extern PropertyInfo qdev_prop_uint8;
12 extern PropertyInfo qdev_prop_uint16;
13 extern PropertyInfo qdev_prop_uint32;
14 extern PropertyInfo qdev_prop_int32;
15 extern PropertyInfo qdev_prop_uint64;
16 extern PropertyInfo qdev_prop_size;
17 extern PropertyInfo qdev_prop_string;
18 extern PropertyInfo qdev_prop_chr;
19 extern PropertyInfo qdev_prop_ptr;
20 extern PropertyInfo qdev_prop_macaddr;
21 extern PropertyInfo qdev_prop_on_off_auto;
22 extern PropertyInfo qdev_prop_losttickpolicy;
23 extern PropertyInfo qdev_prop_blockdev_on_error;
24 extern PropertyInfo qdev_prop_bios_chs_trans;
25 extern PropertyInfo qdev_prop_fdc_drive_type;
26 extern PropertyInfo qdev_prop_drive;
27 extern PropertyInfo qdev_prop_netdev;
28 extern PropertyInfo qdev_prop_vlan;
29 extern PropertyInfo qdev_prop_pci_devfn;
30 extern PropertyInfo qdev_prop_blocksize;
31 extern PropertyInfo qdev_prop_pci_host_devaddr;
32 extern PropertyInfo qdev_prop_arraylen;
34 #define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
37 .offset = offsetof(_state, _field) \
38 + type_check(_type, typeof_field(_state, _field)), \
41 #define DEFINE_PROP_SIGNED(_name, _state, _field, _defval, _prop, _type) { \
44 .offset = offsetof(_state, _field) \
45 + type_check(_type,typeof_field(_state, _field)), \
46 .defval.i = (_type)_defval, \
49 #define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) { \
51 .info = &(qdev_prop_bit), \
53 .offset = offsetof(_state, _field) \
54 + type_check(uint32_t,typeof_field(_state, _field)), \
55 .defval.u = (bool)_defval, \
58 #define DEFINE_PROP_UNSIGNED(_name, _state, _field, _defval, _prop, _type) { \
61 .offset = offsetof(_state, _field) \
62 + type_check(_type, typeof_field(_state, _field)), \
63 .defval.u = (_type)_defval, \
66 #define DEFINE_PROP_BIT64(_name, _state, _field, _bit, _defval) { \
68 .info = &(qdev_prop_bit64), \
70 .offset = offsetof(_state, _field) \
71 + type_check(uint64_t, typeof_field(_state, _field)), \
72 .defval.u = (bool)_defval, \
75 #define DEFINE_PROP_BOOL(_name, _state, _field, _defval) { \
77 .info = &(qdev_prop_bool), \
78 .offset = offsetof(_state, _field) \
79 + type_check(bool, typeof_field(_state, _field)), \
80 .defval.u = (bool)_defval, \
83 #define PROP_ARRAY_LEN_PREFIX "len-"
87 * @_name: name of the array
88 * @_state: name of the device state structure type
89 * @_field: uint32_t field in @_state to hold the array length
90 * @_arrayfield: field in @_state (of type '@_arraytype *') which
91 * will point to the array
92 * @_arrayprop: PropertyInfo defining what property the array elements have
93 * @_arraytype: C type of the array elements
95 * Define device properties for a variable-length array _name. A
96 * static property "len-arrayname" is defined. When the device creator
97 * sets this property to the desired length of array, further dynamic
98 * properties "arrayname[0]", "arrayname[1]", ... are defined so the
99 * device creator can set the array element values. Setting the
100 * "len-arrayname" property more than once is an error.
102 * When the array length is set, the @_field member of the device
103 * struct is set to the array length, and @_arrayfield is set to point
104 * to (zero-initialised) memory allocated for the array. For a zero
105 * length array, @_field will be set to 0 and @_arrayfield to NULL.
106 * It is the responsibility of the device deinit code to free the
107 * @_arrayfield memory.
109 #define DEFINE_PROP_ARRAY(_name, _state, _field, \
110 _arrayfield, _arrayprop, _arraytype) { \
111 .name = (PROP_ARRAY_LEN_PREFIX _name), \
112 .info = &(qdev_prop_arraylen), \
113 .offset = offsetof(_state, _field) \
114 + type_check(uint32_t, typeof_field(_state, _field)), \
115 .arrayinfo = &(_arrayprop), \
116 .arrayfieldsize = sizeof(_arraytype), \
117 .arrayoffset = offsetof(_state, _arrayfield), \
120 #define DEFINE_PROP_UINT8(_n, _s, _f, _d) \
121 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint8, uint8_t)
122 #define DEFINE_PROP_UINT16(_n, _s, _f, _d) \
123 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint16, uint16_t)
124 #define DEFINE_PROP_UINT32(_n, _s, _f, _d) \
125 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint32, uint32_t)
126 #define DEFINE_PROP_INT32(_n, _s, _f, _d) \
127 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_int32, int32_t)
128 #define DEFINE_PROP_UINT64(_n, _s, _f, _d) \
129 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint64, uint64_t)
130 #define DEFINE_PROP_SIZE(_n, _s, _f, _d) \
131 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_size, uint64_t)
132 #define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \
133 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_pci_devfn, int32_t)
136 * Please avoid pointer properties. If you must use them, you must
137 * cover them in their device's class init function as follows:
139 * - If the property must be set, the device cannot be used with
140 * device_add, so add code like this:
141 * |* Reason: pointer property "NAME-OF-YOUR-PROP" *|
142 * DeviceClass *dc = DEVICE_CLASS(class);
143 * dc->user_creatable = false;
145 * - If the property may safely remain null, document it like this:
147 * * Note: pointer property "interrupt_vector" may remain null, thus
148 * * no need for dc->user_creatable = false;
151 #define DEFINE_PROP_PTR(_n, _s, _f) \
152 DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)
154 #define DEFINE_PROP_CHR(_n, _s, _f) \
155 DEFINE_PROP(_n, _s, _f, qdev_prop_chr, CharBackend)
156 #define DEFINE_PROP_STRING(_n, _s, _f) \
157 DEFINE_PROP(_n, _s, _f, qdev_prop_string, char*)
158 #define DEFINE_PROP_NETDEV(_n, _s, _f) \
159 DEFINE_PROP(_n, _s, _f, qdev_prop_netdev, NICPeers)
160 #define DEFINE_PROP_VLAN(_n, _s, _f) \
161 DEFINE_PROP(_n, _s, _f, qdev_prop_vlan, NICPeers)
162 #define DEFINE_PROP_DRIVE(_n, _s, _f) \
163 DEFINE_PROP(_n, _s, _f, qdev_prop_drive, BlockBackend *)
164 #define DEFINE_PROP_MACADDR(_n, _s, _f) \
165 DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, MACAddr)
166 #define DEFINE_PROP_ON_OFF_AUTO(_n, _s, _f, _d) \
167 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_on_off_auto, OnOffAuto)
168 #define DEFINE_PROP_LOSTTICKPOLICY(_n, _s, _f, _d) \
169 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_losttickpolicy, \
171 #define DEFINE_PROP_BLOCKDEV_ON_ERROR(_n, _s, _f, _d) \
172 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_blockdev_on_error, \
174 #define DEFINE_PROP_BIOS_CHS_TRANS(_n, _s, _f, _d) \
175 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_bios_chs_trans, int)
176 #define DEFINE_PROP_BLOCKSIZE(_n, _s, _f) \
177 DEFINE_PROP_UNSIGNED(_n, _s, _f, 0, qdev_prop_blocksize, uint16_t)
178 #define DEFINE_PROP_PCI_HOST_DEVADDR(_n, _s, _f) \
179 DEFINE_PROP(_n, _s, _f, qdev_prop_pci_host_devaddr, PCIHostDeviceAddress)
180 #define DEFINE_PROP_MEMORY_REGION(_n, _s, _f) \
181 DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, MemoryRegion *)
183 #define DEFINE_PROP_END_OF_LIST() \
186 /* Set properties between creation and init. */
187 void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
188 void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value);
189 void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value);
190 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
191 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
192 void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value);
193 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value);
194 void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value);
195 void qdev_prop_set_chr(DeviceState *dev, const char *name, Chardev *value);
196 void qdev_prop_set_netdev(DeviceState *dev, const char *name, NetClientState *value);
197 void qdev_prop_set_drive(DeviceState *dev, const char *name,
198 BlockBackend *value, Error **errp);
199 void qdev_prop_set_macaddr(DeviceState *dev, const char *name,
200 const uint8_t *value);
201 void qdev_prop_set_enum(DeviceState *dev, const char *name, int value);
202 /* FIXME: Remove opaque pointer properties. */
203 void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value);
205 void qdev_prop_register_global(GlobalProperty *prop);
206 void qdev_prop_register_global_list(GlobalProperty *props);
207 int qdev_prop_check_globals(void);
208 void qdev_prop_set_globals(DeviceState *dev);
209 void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
210 Property *prop, const char *value);
213 * qdev_property_add_static:
214 * @dev: Device to add the property to.
215 * @prop: The qdev property definition.
216 * @errp: location to store error information.
218 * Add a static QOM property to @dev for qdev property @prop.
219 * On error, store error in @errp. Static properties access data in a struct.
220 * The type of the QOM property is derived from prop->info.
222 void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp);
224 void qdev_alias_all_properties(DeviceState *target, Object *source);
227 * @qdev_prop_set_after_realize:
229 * @name: name of property
230 * @errp: indirect pointer to Error to be set
231 * Set the Error object to report that an attempt was made to set a property
232 * on a device after it has already been realized. This is a utility function
233 * which allows property-setter functions to easily report the error in
234 * a friendly format identifying both the device and the property.
236 void qdev_prop_set_after_realize(DeviceState *dev, const char *name,
240 * qdev_prop_allow_set_link_before_realize:
242 * Set the #Error object if an attempt is made to set the link after realize.
243 * This function should be used as the check() argument to
244 * object_property_add_link().
246 void qdev_prop_allow_set_link_before_realize(Object *obj, const char *name,
247 Object *val, Error **errp);