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
|
#ifndef QDEV_CORE_H
#define QDEV_CORE_H
#include "qemu-queue.h"
#include "qemu-option.h"
#include "qemu/object.h"
#include "hw/irq.h"
#include "error.h"
typedef struct Property Property;
typedef struct PropertyInfo PropertyInfo;
typedef struct CompatProperty CompatProperty;
typedef struct BusState BusState;
typedef struct BusClass BusClass;
enum DevState {
DEV_STATE_CREATED = 1,
DEV_STATE_INITIALIZED,
};
enum {
DEV_NVECTORS_UNSPECIFIED = -1,
};
#define TYPE_DEVICE "device"
#define DEVICE(obj) OBJECT_CHECK(DeviceState, (obj), TYPE_DEVICE)
#define DEVICE_CLASS(klass) OBJECT_CLASS_CHECK(DeviceClass, (klass), TYPE_DEVICE)
#define DEVICE_GET_CLASS(obj) OBJECT_GET_CLASS(DeviceClass, (obj), TYPE_DEVICE)
typedef int (*qdev_initfn)(DeviceState *dev);
typedef int (*qdev_event)(DeviceState *dev);
typedef void (*qdev_resetfn)(DeviceState *dev);
struct VMStateDescription;
typedef struct DeviceClass {
ObjectClass parent_class;
const char *fw_name;
const char *desc;
Property *props;
int no_user;
/* callbacks */
void (*reset)(DeviceState *dev);
/* device state */
const struct VMStateDescription *vmsd;
/* Private to qdev / bus. */
qdev_initfn init;
qdev_event unplug;
qdev_event exit;
const char *bus_type;
} DeviceClass;
/* This structure should not be accessed directly. We declare it here
so that it can be embedded in individual device state structures. */
struct DeviceState {
Object parent_obj;
const char *id;
enum DevState state;
QemuOpts *opts;
int hotplugged;
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;
int instance_id_alias;
int alias_required_for_version;
};
#define TYPE_BUS "bus"
#define BUS(obj) OBJECT_CHECK(BusState, (obj), TYPE_BUS)
#define BUS_CLASS(klass) OBJECT_CLASS_CHECK(BusClass, (klass), TYPE_BUS)
#define BUS_GET_CLASS(obj) OBJECT_GET_CLASS(BusClass, (obj), TYPE_BUS)
struct BusClass {
ObjectClass parent_class;
/* FIXME first arg should be BusState */
void (*print_dev)(Monitor *mon, DeviceState *dev, int indent);
char *(*get_dev_path)(DeviceState *dev);
/*
* This callback is used to create Open Firmware device path in accordance
* with OF spec http://forthworks.com/standards/of1275.pdf. Individual bus
* bindings can be found at http://playground.sun.com/1275/bindings/.
*/
char *(*get_fw_dev_path)(DeviceState *dev);
int (*reset)(BusState *bus);
};
typedef struct BusChild {
DeviceState *child;
int index;
QTAILQ_ENTRY(BusChild) sibling;
} BusChild;
/**
* BusState:
*/
struct BusState {
Object obj;
DeviceState *parent;
const char *name;
int allow_hotplug;
int max_index;
QTAILQ_HEAD(ChildrenHead, BusChild) children;
QLIST_ENTRY(BusState) sibling;
};
struct Property {
const char *name;
PropertyInfo *info;
int offset;
uint8_t bitnr;
uint8_t qtype;
int64_t defval;
};
struct PropertyInfo {
const char *name;
const char *legacy_name;
const char **enum_table;
int (*parse)(DeviceState *dev, Property *prop, const char *str);
int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len);
ObjectPropertyAccessor *get;
ObjectPropertyAccessor *set;
ObjectPropertyRelease *release;
};
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);
DeviceState *qdev_try_create(BusState *bus, const char *name);
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);
void qdev_unplug(DeviceState *dev, Error **errp);
void qdev_free(DeviceState *dev);
int qdev_simple_unplug_cb(DeviceState *dev);
void qdev_machine_creation_done(void);
bool qdev_machine_modified(void);
qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin);
BusState *qdev_get_child_bus(DeviceState *dev, const char *name);
/*** Device API. ***/
/* 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);
BusState *qdev_get_parent_bus(DeviceState *dev);
/*** BUS API. ***/
DeviceState *qdev_find_recursive(BusState *bus, const char *id);
/* Returns 0 to walk children, > 0 to skip walk, < 0 to terminate walk. */
typedef int (qbus_walkerfn)(BusState *bus, void *opaque);
typedef int (qdev_walkerfn)(DeviceState *dev, void *opaque);
void qbus_create_inplace(BusState *bus, const char *typename,
DeviceState *parent, const char *name);
BusState *qbus_create(const char *typename, DeviceState *parent, const char *name);
/* Returns > 0 if either devfn or busfn skip walk somewhere in cursion,
* < 0 if either devfn or busfn terminate walk somewhere in cursion,
* 0 otherwise. */
int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
qbus_walkerfn *busfn, void *opaque);
int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
qbus_walkerfn *busfn, void *opaque);
void qdev_reset_all(DeviceState *dev);
void qbus_reset_all_fn(void *opaque);
void qbus_free(BusState *bus);
#define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev)
/* This should go away once we get rid of the NULL bus hack */
BusState *sysbus_get_default(void);
char *qdev_get_fw_dev_path(DeviceState *dev);
/**
* @qdev_machine_init
*
* Initialize platform devices before machine init. This is a hack until full
* support for composition is added.
*/
void qdev_machine_init(void);
/**
* @device_reset
*
* Reset a single device (by calling the reset method).
*/
void device_reset(DeviceState *dev);
const struct VMStateDescription *qdev_get_vmsd(DeviceState *dev);
const char *qdev_fw_name(DeviceState *dev);
Object *qdev_get_machine(void);
/* FIXME: make this a link<> */
void qdev_set_parent_bus(DeviceState *dev, BusState *bus);
extern int qdev_hotplug;
char *qdev_get_dev_path(DeviceState *dev);
#endif
|
