summaryrefslogtreecommitdiff
path: root/hw/qdev.h
blob: be5ad671cc370d48b3086fcab8e6b3525587be29 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
#ifndef QDEV_H
#define QDEV_H

#include "hw.h"
#include "blockdev.h"
#include "qemu-queue.h"
#include "qemu-char.h"
#include "qemu-option.h"

typedef struct Property Property;

typedef struct PropertyInfo PropertyInfo;

typedef struct CompatProperty CompatProperty;

typedef struct DeviceInfo DeviceInfo;

typedef struct BusState BusState;

typedef struct BusInfo BusInfo;

enum DevState {
    DEV_STATE_CREATED = 1,
    DEV_STATE_INITIALIZED,
};

enum {
    DEV_NVECTORS_UNSPECIFIED = -1,
};

/* This structure should not be accessed directly.  We declare it here
   so that it can be embedded in individual device state structures.  */
struct DeviceState {
    const char *id;
    enum DevState state;
    QemuOpts *opts;
    int hotplugged;
    DeviceInfo *info;
    BusState *parent_bus;
    int num_gpio_out;
    qemu_irq *gpio_out;
    int num_gpio_in;
    qemu_irq *gpio_in;
    QLIST_HEAD(, BusState) child_bus;
    int num_child_bus;
    QLIST_ENTRY(DeviceState) sibling;
    int instance_id_alias;
    int alias_required_for_version;
};

typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent);
struct BusInfo {
    const char *name;
    size_t size;
    bus_dev_printfn print_dev;
    Property *props;
};

struct BusState {
    DeviceState *parent;
    BusInfo *info;
    const char *name;
    int allow_hotplug;
    int qdev_allocated;
    QLIST_HEAD(, DeviceState) children;
    QLIST_ENTRY(BusState) sibling;
};

struct Property {
    const char   *name;
    PropertyInfo *info;
    int          offset;
    int          bitnr;
    void         *defval;
};

enum PropertyType {
    PROP_TYPE_UNSPEC = 0,
    PROP_TYPE_UINT8,
    PROP_TYPE_UINT16,
    PROP_TYPE_UINT32,
    PROP_TYPE_INT32,
    PROP_TYPE_UINT64,
    PROP_TYPE_TADDR,
    PROP_TYPE_MACADDR,
    PROP_TYPE_DRIVE,
    PROP_TYPE_CHR,
    PROP_TYPE_STRING,
    PROP_TYPE_NETDEV,
    PROP_TYPE_VLAN,
    PROP_TYPE_PTR,
    PROP_TYPE_BIT,
};

struct PropertyInfo {
    const char *name;
    size_t size;
    enum PropertyType type;
    int (*parse)(DeviceState *dev, Property *prop, const char *str);
    int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len);
    void (*free)(DeviceState *dev, Property *prop);
};

typedef struct GlobalProperty {
    const char *driver;
    const char *property;
    const char *value;
    QTAILQ_ENTRY(GlobalProperty) next;
} GlobalProperty;

/*** Board API.  This should go away once we have a machine config file.  ***/

DeviceState *qdev_create(BusState *bus, const char *name);
int qdev_device_help(QemuOpts *opts);
DeviceState *qdev_device_add(QemuOpts *opts);
int qdev_init(DeviceState *dev) QEMU_WARN_UNUSED_RESULT;
void qdev_init_nofail(DeviceState *dev);
void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
                                 int required_for_version);
int qdev_unplug(DeviceState *dev);
void qdev_free(DeviceState *dev);
int qdev_simple_unplug_cb(DeviceState *dev);
void qdev_machine_creation_done(void);

qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin);

BlockDriverState *qdev_init_bdrv(DeviceState *dev, BlockInterfaceType type);

BusState *qdev_get_child_bus(DeviceState *dev, const char *name);

/*** Device API.  ***/

typedef int (*qdev_initfn)(DeviceState *dev, DeviceInfo *info);
typedef int (*qdev_event)(DeviceState *dev);
typedef void (*qdev_resetfn)(DeviceState *dev);

struct DeviceInfo {
    const char *name;
    const char *alias;
    const char *desc;
    size_t size;
    Property *props;
    int no_user;

    /* callbacks */
    qdev_resetfn reset;

    /* device state */
    const VMStateDescription *vmsd;

    /* Private to qdev / bus.  */
    qdev_initfn init;
    qdev_event unplug;
    qdev_event exit;
    BusInfo *bus_info;
    struct DeviceInfo *next;
};
extern DeviceInfo *device_info_list;

void qdev_register(DeviceInfo *info);

/* Register device properties.  */
/* GPIO inputs also double as IRQ sinks.  */
void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n);
void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n);

CharDriverState *qdev_init_chardev(DeviceState *dev);

BusState *qdev_get_parent_bus(DeviceState *dev);

/*** BUS API. ***/

void qbus_create_inplace(BusState *bus, BusInfo *info,
                         DeviceState *parent, const char *name);
BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name);
void qbus_free(BusState *bus);

#define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev)

/*** monitor commands ***/

void do_info_qtree(Monitor *mon);
void do_info_qdm(Monitor *mon);
int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data);
int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data);

/*** qdev-properties.c ***/

extern PropertyInfo qdev_prop_bit;
extern PropertyInfo qdev_prop_uint8;
extern PropertyInfo qdev_prop_uint16;
extern PropertyInfo qdev_prop_uint32;
extern PropertyInfo qdev_prop_int32;
extern PropertyInfo qdev_prop_uint64;
extern PropertyInfo qdev_prop_hex32;
extern PropertyInfo qdev_prop_hex64;
extern PropertyInfo qdev_prop_string;
extern PropertyInfo qdev_prop_chr;
extern PropertyInfo qdev_prop_ptr;
extern PropertyInfo qdev_prop_macaddr;
extern PropertyInfo qdev_prop_drive;
extern PropertyInfo qdev_prop_netdev;
extern PropertyInfo qdev_prop_vlan;
extern PropertyInfo qdev_prop_pci_devfn;

#define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
        .name      = (_name),                                    \
        .info      = &(_prop),                                   \
        .offset    = offsetof(_state, _field)                    \
            + type_check(_type,typeof_field(_state, _field)),    \
        }
#define DEFINE_PROP_DEFAULT(_name, _state, _field, _defval, _prop, _type) { \
        .name      = (_name),                                           \
        .info      = &(_prop),                                          \
        .offset    = offsetof(_state, _field)                           \
            + type_check(_type,typeof_field(_state, _field)),           \
        .defval    = (_type[]) { _defval },                             \
        }
#define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) {  \
        .name      = (_name),                                    \
        .info      = &(qdev_prop_bit),                           \
        .bitnr    = (_bit),                                      \
        .offset    = offsetof(_state, _field)                    \
            + type_check(uint32_t,typeof_field(_state, _field)), \
        .defval    = (bool[]) { (_defval) },                     \
        }

#define DEFINE_PROP_UINT8(_n, _s, _f, _d)                       \
    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint8, uint8_t)
#define DEFINE_PROP_UINT16(_n, _s, _f, _d)                      \
    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint16, uint16_t)
#define DEFINE_PROP_UINT32(_n, _s, _f, _d)                      \
    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint32, uint32_t)
#define DEFINE_PROP_INT32(_n, _s, _f, _d)                      \
    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_int32, int32_t)
#define DEFINE_PROP_UINT64(_n, _s, _f, _d)                      \
    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint64, uint64_t)
#define DEFINE_PROP_HEX32(_n, _s, _f, _d)                       \
    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex32, uint32_t)
#define DEFINE_PROP_HEX64(_n, _s, _f, _d)                       \
    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex64, uint64_t)
#define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d)                   \
    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, uint32_t)

#define DEFINE_PROP_PTR(_n, _s, _f)             \
    DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)
#define DEFINE_PROP_CHR(_n, _s, _f)             \
    DEFINE_PROP(_n, _s, _f, qdev_prop_chr, CharDriverState*)
#define DEFINE_PROP_STRING(_n, _s, _f)             \
    DEFINE_PROP(_n, _s, _f, qdev_prop_string, char*)
#define DEFINE_PROP_NETDEV(_n, _s, _f)             \
    DEFINE_PROP(_n, _s, _f, qdev_prop_netdev, VLANClientState*)
#define DEFINE_PROP_VLAN(_n, _s, _f)             \
    DEFINE_PROP(_n, _s, _f, qdev_prop_vlan, VLANState*)
#define DEFINE_PROP_DRIVE(_n, _s, _f)             \
    DEFINE_PROP(_n, _s, _f, qdev_prop_drive, DriveInfo*)
#define DEFINE_PROP_MACADDR(_n, _s, _f)         \
    DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, MACAddr)

#define DEFINE_PROP_END_OF_LIST()               \
    {}

/* Set properties between creation and init.  */
void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
int qdev_prop_exists(DeviceState *dev, const char *name);
int qdev_prop_parse(DeviceState *dev, const char *name, const char *value);
void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type);
void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value);
void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value);
void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value);
void qdev_prop_set_string(DeviceState *dev, const char *name, char *value);
void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value);
void qdev_prop_set_netdev(DeviceState *dev, const char *name, VLANClientState *value);
void qdev_prop_set_vlan(DeviceState *dev, const char *name, VLANState *value);
void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value);
void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value);
/* FIXME: Remove opaque pointer properties.  */
void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value);
void qdev_prop_set_defaults(DeviceState *dev, Property *props);

void qdev_prop_register_global_list(GlobalProperty *props);
void qdev_prop_set_globals(DeviceState *dev);

/* This is a nasty hack to allow passing a NULL bus to qdev_create.  */
extern struct BusInfo system_bus_info;

#endif