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1#ifndef QEMU_QDEV_PROPERTIES_H
2#define QEMU_QDEV_PROPERTIES_H
3
83c9f4ca 4#include "hw/qdev-core.h"
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5
6/*** qdev-properties.c ***/
7
8extern PropertyInfo qdev_prop_bit;
72cc5137 9extern PropertyInfo qdev_prop_bool;
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10extern PropertyInfo qdev_prop_uint8;
11extern PropertyInfo qdev_prop_uint16;
12extern PropertyInfo qdev_prop_uint32;
13extern PropertyInfo qdev_prop_int32;
14extern PropertyInfo qdev_prop_uint64;
e8cd45c7 15extern PropertyInfo qdev_prop_size;
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16extern PropertyInfo qdev_prop_string;
17extern PropertyInfo qdev_prop_chr;
18extern PropertyInfo qdev_prop_ptr;
19extern PropertyInfo qdev_prop_macaddr;
20extern PropertyInfo qdev_prop_losttickpolicy;
21extern PropertyInfo qdev_prop_bios_chs_trans;
22extern PropertyInfo qdev_prop_drive;
23extern PropertyInfo qdev_prop_netdev;
24extern PropertyInfo qdev_prop_vlan;
6e4a876b 25extern PropertyInfo qdev_prop_iothread;
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26extern PropertyInfo qdev_prop_pci_devfn;
27extern PropertyInfo qdev_prop_blocksize;
28extern PropertyInfo qdev_prop_pci_host_devaddr;
0be6bfac 29extern PropertyInfo qdev_prop_arraylen;
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30
31#define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
32 .name = (_name), \
33 .info = &(_prop), \
34 .offset = offsetof(_state, _field) \
1ceef9f2 35 + type_check(_type, typeof_field(_state, _field)), \
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36 }
37#define DEFINE_PROP_DEFAULT(_name, _state, _field, _defval, _prop, _type) { \
38 .name = (_name), \
39 .info = &(_prop), \
40 .offset = offsetof(_state, _field) \
41 + type_check(_type,typeof_field(_state, _field)), \
42 .qtype = QTYPE_QINT, \
43 .defval = (_type)_defval, \
44 }
45#define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) { \
46 .name = (_name), \
47 .info = &(qdev_prop_bit), \
48 .bitnr = (_bit), \
49 .offset = offsetof(_state, _field) \
50 + type_check(uint32_t,typeof_field(_state, _field)), \
51 .qtype = QTYPE_QBOOL, \
52 .defval = (bool)_defval, \
53 }
54
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55#define DEFINE_PROP_BOOL(_name, _state, _field, _defval) { \
56 .name = (_name), \
57 .info = &(qdev_prop_bool), \
58 .offset = offsetof(_state, _field) \
59 + type_check(bool, typeof_field(_state, _field)), \
60 .qtype = QTYPE_QBOOL, \
61 .defval = (bool)_defval, \
62 }
63
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64#define PROP_ARRAY_LEN_PREFIX "len-"
65
66/**
67 * DEFINE_PROP_ARRAY:
68 * @_name: name of the array
69 * @_state: name of the device state structure type
70 * @_field: uint32_t field in @_state to hold the array length
71 * @_arrayfield: field in @_state (of type '@_arraytype *') which
72 * will point to the array
73 * @_arrayprop: PropertyInfo defining what property the array elements have
74 * @_arraytype: C type of the array elements
75 *
76 * Define device properties for a variable-length array _name. A
77 * static property "len-arrayname" is defined. When the device creator
78 * sets this property to the desired length of array, further dynamic
79 * properties "arrayname[0]", "arrayname[1]", ... are defined so the
80 * device creator can set the array element values. Setting the
81 * "len-arrayname" property more than once is an error.
82 *
83 * When the array length is set, the @_field member of the device
84 * struct is set to the array length, and @_arrayfield is set to point
85 * to (zero-initialised) memory allocated for the array. For a zero
86 * length array, @_field will be set to 0 and @_arrayfield to NULL.
87 * It is the responsibility of the device deinit code to free the
88 * @_arrayfield memory.
89 */
90#define DEFINE_PROP_ARRAY(_name, _state, _field, \
91 _arrayfield, _arrayprop, _arraytype) { \
92 .name = (PROP_ARRAY_LEN_PREFIX _name), \
93 .info = &(qdev_prop_arraylen), \
94 .offset = offsetof(_state, _field) \
95 + type_check(uint32_t, typeof_field(_state, _field)), \
96 .qtype = QTYPE_QINT, \
97 .arrayinfo = &(_arrayprop), \
98 .arrayfieldsize = sizeof(_arraytype), \
99 .arrayoffset = offsetof(_state, _arrayfield), \
100 }
101
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102#define DEFINE_PROP_UINT8(_n, _s, _f, _d) \
103 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint8, uint8_t)
104#define DEFINE_PROP_UINT16(_n, _s, _f, _d) \
105 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint16, uint16_t)
106#define DEFINE_PROP_UINT32(_n, _s, _f, _d) \
107 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint32, uint32_t)
108#define DEFINE_PROP_INT32(_n, _s, _f, _d) \
109 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_int32, int32_t)
110#define DEFINE_PROP_UINT64(_n, _s, _f, _d) \
111 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint64, uint64_t)
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112#define DEFINE_PROP_SIZE(_n, _s, _f, _d) \
113 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_size, uint64_t)
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114#define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \
115 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, int32_t)
116
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117/*
118 * Please avoid pointer properties. If you must use them, you must
119 * cover them in their device's class init function as follows:
120 *
121 * - If the property must be set, the device cannot be used with
122 * device_add, so add code like this:
123 * |* Reason: pointer property "NAME-OF-YOUR-PROP" *|
124 * DeviceClass *dc = DEVICE_CLASS(class);
125 * dc->cannot_instantiate_with_device_add_yet = true;
126 *
127 * - If the property may safely remain null, document it like this:
128 * |*
129 * * Note: pointer property "interrupt_vector" may remain null, thus
130 * * no need for dc->cannot_instantiate_with_device_add_yet = true;
131 * *|
132 */
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133#define DEFINE_PROP_PTR(_n, _s, _f) \
134 DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)
c272758f 135
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136#define DEFINE_PROP_CHR(_n, _s, _f) \
137 DEFINE_PROP(_n, _s, _f, qdev_prop_chr, CharDriverState*)
138#define DEFINE_PROP_STRING(_n, _s, _f) \
139 DEFINE_PROP(_n, _s, _f, qdev_prop_string, char*)
140#define DEFINE_PROP_NETDEV(_n, _s, _f) \
1ceef9f2 141 DEFINE_PROP(_n, _s, _f, qdev_prop_netdev, NICPeers)
074a86fc 142#define DEFINE_PROP_VLAN(_n, _s, _f) \
1ceef9f2 143 DEFINE_PROP(_n, _s, _f, qdev_prop_vlan, NICPeers)
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144#define DEFINE_PROP_DRIVE(_n, _s, _f) \
145 DEFINE_PROP(_n, _s, _f, qdev_prop_drive, BlockDriverState *)
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146#define DEFINE_PROP_IOTHREAD(_n, _s, _f) \
147 DEFINE_PROP(_n, _s, _f, qdev_prop_iothread, IOThread *)
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148#define DEFINE_PROP_MACADDR(_n, _s, _f) \
149 DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, MACAddr)
150#define DEFINE_PROP_LOSTTICKPOLICY(_n, _s, _f, _d) \
151 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_losttickpolicy, \
152 LostTickPolicy)
153#define DEFINE_PROP_BIOS_CHS_TRANS(_n, _s, _f, _d) \
154 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_bios_chs_trans, int)
155#define DEFINE_PROP_BLOCKSIZE(_n, _s, _f, _d) \
156 DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_blocksize, uint16_t)
157#define DEFINE_PROP_PCI_HOST_DEVADDR(_n, _s, _f) \
158 DEFINE_PROP(_n, _s, _f, qdev_prop_pci_host_devaddr, PCIHostDeviceAddress)
159
160#define DEFINE_PROP_END_OF_LIST() \
161 {}
162
163/* Set properties between creation and init. */
164void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
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165void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value);
166void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value);
167void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
168void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
169void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value);
170void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value);
171void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value);
172void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value);
173void qdev_prop_set_netdev(DeviceState *dev, const char *name, NetClientState *value);
174int qdev_prop_set_drive(DeviceState *dev, const char *name, BlockDriverState *value) QEMU_WARN_UNUSED_RESULT;
175void qdev_prop_set_drive_nofail(DeviceState *dev, const char *name, BlockDriverState *value);
176void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value);
177void qdev_prop_set_enum(DeviceState *dev, const char *name, int value);
178/* FIXME: Remove opaque pointer properties. */
179void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value);
180
a404b612 181void qdev_prop_register_global(GlobalProperty *prop);
074a86fc 182void qdev_prop_register_global_list(GlobalProperty *props);
9f9260a3 183int qdev_prop_check_global(void);
b1fe9bcb 184void qdev_prop_set_globals(DeviceState *dev, Error **errp);
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185void qdev_prop_set_globals_for_type(DeviceState *dev, const char *typename,
186 Error **errp);
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187void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
188 Property *prop, const char *value);
189
190/**
191 * @qdev_property_add_static - add a @Property to a device referencing a
192 * field in a struct.
193 */
194void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp);
195
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196/**
197 * @qdev_prop_set_after_realize:
198 * @dev: device
199 * @name: name of property
200 * @errp: indirect pointer to Error to be set
201 * Set the Error object to report that an attempt was made to set a property
202 * on a device after it has already been realized. This is a utility function
203 * which allows property-setter functions to easily report the error in
204 * a friendly format identifying both the device and the property.
205 */
206void qdev_prop_set_after_realize(DeviceState *dev, const char *name,
207 Error **errp);
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208
209/**
210 * qdev_prop_allow_set_link_before_realize:
211 *
212 * Set the #Error object if an attempt is made to set the link after realize.
213 * This function should be used as the check() argument to
214 * object_property_add_link().
215 */
216void qdev_prop_allow_set_link_before_realize(Object *obj, const char *name,
217 Object *val, Error **errp);
218
074a86fc 219#endif