root / hw / qdev.h @ cf12b95b
History | View | Annotate | Download (6.9 kB)
1 |
#ifndef QDEV_H
|
---|---|
2 |
#define QDEV_H
|
3 |
|
4 |
#include "hw.h" |
5 |
#include "sysemu.h" |
6 |
#include "sys-queue.h" |
7 |
#include "qemu-option.h" |
8 |
|
9 |
typedef struct Property Property; |
10 |
|
11 |
typedef struct PropertyInfo PropertyInfo; |
12 |
|
13 |
typedef struct CompatProperty CompatProperty; |
14 |
|
15 |
typedef struct DeviceInfo DeviceInfo; |
16 |
|
17 |
typedef struct BusState BusState; |
18 |
|
19 |
typedef struct BusInfo BusInfo; |
20 |
|
21 |
/* This structure should not be accessed directly. We declare it here
|
22 |
so that it can be embedded in individual device state structures. */
|
23 |
struct DeviceState {
|
24 |
const char *id; |
25 |
DeviceInfo *info; |
26 |
BusState *parent_bus; |
27 |
int num_gpio_out;
|
28 |
qemu_irq *gpio_out; |
29 |
int num_gpio_in;
|
30 |
qemu_irq *gpio_in; |
31 |
LIST_HEAD(, BusState) child_bus; |
32 |
int num_child_bus;
|
33 |
NICInfo *nd; |
34 |
LIST_ENTRY(DeviceState) sibling; |
35 |
}; |
36 |
|
37 |
typedef void (*bus_dev_printfn)(Monitor *mon, DeviceState *dev, int indent); |
38 |
struct BusInfo {
|
39 |
const char *name; |
40 |
size_t size; |
41 |
bus_dev_printfn print_dev; |
42 |
Property *props; |
43 |
}; |
44 |
|
45 |
struct BusState {
|
46 |
DeviceState *parent; |
47 |
BusInfo *info; |
48 |
const char *name; |
49 |
LIST_HEAD(, DeviceState) children; |
50 |
LIST_ENTRY(BusState) sibling; |
51 |
}; |
52 |
|
53 |
struct Property {
|
54 |
const char *name; |
55 |
PropertyInfo *info; |
56 |
int offset;
|
57 |
void *defval;
|
58 |
}; |
59 |
|
60 |
enum PropertyType {
|
61 |
PROP_TYPE_UNSPEC = 0,
|
62 |
PROP_TYPE_UINT16, |
63 |
PROP_TYPE_UINT32, |
64 |
PROP_TYPE_UINT64, |
65 |
PROP_TYPE_TADDR, |
66 |
PROP_TYPE_MACADDR, |
67 |
PROP_TYPE_DRIVE, |
68 |
PROP_TYPE_PTR, |
69 |
}; |
70 |
|
71 |
struct PropertyInfo {
|
72 |
const char *name; |
73 |
size_t size; |
74 |
enum PropertyType type;
|
75 |
int (*parse)(DeviceState *dev, Property *prop, const char *str); |
76 |
int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len); |
77 |
}; |
78 |
|
79 |
struct CompatProperty {
|
80 |
const char *driver; |
81 |
const char *property; |
82 |
const char *value; |
83 |
}; |
84 |
|
85 |
/*** Board API. This should go away once we have a machine config file. ***/
|
86 |
|
87 |
DeviceState *qdev_create(BusState *bus, const char *name); |
88 |
DeviceState *qdev_device_add(QemuOpts *opts); |
89 |
void qdev_init(DeviceState *dev);
|
90 |
void qdev_free(DeviceState *dev);
|
91 |
|
92 |
qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
|
93 |
void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin); |
94 |
|
95 |
BusState *qdev_get_child_bus(DeviceState *dev, const char *name); |
96 |
|
97 |
/*** Device API. ***/
|
98 |
|
99 |
typedef void (*qdev_initfn)(DeviceState *dev, DeviceInfo *info); |
100 |
typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv, |
101 |
int unit);
|
102 |
|
103 |
struct DeviceInfo {
|
104 |
const char *name; |
105 |
const char *alias; |
106 |
const char *desc; |
107 |
size_t size; |
108 |
Property *props; |
109 |
int no_user;
|
110 |
|
111 |
/* Private to qdev / bus. */
|
112 |
qdev_initfn init; |
113 |
BusInfo *bus_info; |
114 |
struct DeviceInfo *next;
|
115 |
}; |
116 |
|
117 |
void qdev_register(DeviceInfo *info);
|
118 |
|
119 |
/* Register device properties. */
|
120 |
/* GPIO inputs also double as IRQ sinks. */
|
121 |
void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n); |
122 |
void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n); |
123 |
|
124 |
void scsi_bus_new(DeviceState *host, SCSIAttachFn attach);
|
125 |
|
126 |
CharDriverState *qdev_init_chardev(DeviceState *dev); |
127 |
|
128 |
BusState *qdev_get_parent_bus(DeviceState *dev); |
129 |
|
130 |
/* Convery from a base type to a parent type, with compile time checking. */
|
131 |
#ifdef __GNUC__
|
132 |
#define DO_UPCAST(type, field, dev) ( __extension__ ( { \
|
133 |
char __attribute__((unused)) offset_must_be_zero[ \
|
134 |
-offsetof(type, field)]; \ |
135 |
container_of(dev, type, field);})) |
136 |
#else
|
137 |
#define DO_UPCAST(type, field, dev) container_of(dev, type, field)
|
138 |
#endif
|
139 |
|
140 |
/*** BUS API. ***/
|
141 |
|
142 |
BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name); |
143 |
|
144 |
#define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev)
|
145 |
|
146 |
/*** monitor commands ***/
|
147 |
|
148 |
void do_info_qtree(Monitor *mon);
|
149 |
void do_info_qdrv(Monitor *mon);
|
150 |
|
151 |
/*** qdev-properties.c ***/
|
152 |
|
153 |
extern PropertyInfo qdev_prop_uint16;
|
154 |
extern PropertyInfo qdev_prop_uint32;
|
155 |
extern PropertyInfo qdev_prop_uint64;
|
156 |
extern PropertyInfo qdev_prop_hex32;
|
157 |
extern PropertyInfo qdev_prop_hex64;
|
158 |
extern PropertyInfo qdev_prop_ptr;
|
159 |
extern PropertyInfo qdev_prop_macaddr;
|
160 |
extern PropertyInfo qdev_prop_drive;
|
161 |
extern PropertyInfo qdev_prop_pci_devfn;
|
162 |
|
163 |
#define typeof_field(type, field) typeof(((type *)0)->field) |
164 |
#define type_check(t1,t2) ((t1*)0 - (t2*)0) |
165 |
|
166 |
#define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
|
167 |
.name = (_name), \ |
168 |
.info = &(_prop), \ |
169 |
.offset = offsetof(_state, _field) \ |
170 |
+ type_check(_type,typeof_field(_state, _field)), \ |
171 |
} |
172 |
#define DEFINE_PROP_DEFAULT(_name, _state, _field, _defval, _prop, _type) { \
|
173 |
.name = (_name), \ |
174 |
.info = &(_prop), \ |
175 |
.offset = offsetof(_state, _field) \ |
176 |
+ type_check(_type,typeof_field(_state, _field)), \ |
177 |
.defval = (_type[]) { _defval }, \ |
178 |
} |
179 |
|
180 |
#define DEFINE_PROP_UINT16(_n, _s, _f, _d) \
|
181 |
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint16, uint16_t) |
182 |
#define DEFINE_PROP_UINT32(_n, _s, _f, _d) \
|
183 |
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint32, uint32_t) |
184 |
#define DEFINE_PROP_UINT64(_n, _s, _f, _d) \
|
185 |
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint64, uint64_t) |
186 |
#define DEFINE_PROP_HEX32(_n, _s, _f, _d) \
|
187 |
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex32, uint32_t) |
188 |
#define DEFINE_PROP_HEX64(_n, _s, _f, _d) \
|
189 |
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex64, uint64_t) |
190 |
#define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \
|
191 |
DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_pci_devfn, uint32_t) |
192 |
|
193 |
#define DEFINE_PROP_PTR(_n, _s, _f) \
|
194 |
DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)
|
195 |
#define DEFINE_PROP_MACADDR(_n, _s, _f) \
|
196 |
DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, uint8_t[6])
|
197 |
|
198 |
#define DEFINE_PROP_END_OF_LIST() \
|
199 |
{} |
200 |
|
201 |
/* Set properties between creation and init. */
|
202 |
void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
|
203 |
int qdev_prop_parse(DeviceState *dev, const char *name, const char *value); |
204 |
void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type); |
205 |
void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value); |
206 |
void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value); |
207 |
void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value); |
208 |
void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value); |
209 |
/* FIXME: Remove opaque pointer properties. */
|
210 |
void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value); |
211 |
void qdev_prop_set_defaults(DeviceState *dev, Property *props);
|
212 |
|
213 |
void qdev_prop_register_compat(CompatProperty *props);
|
214 |
void qdev_prop_set_compat(DeviceState *dev);
|
215 |
|
216 |
/* This is a nasty hack to allow passing a NULL bus to qdev_create. */
|
217 |
extern struct BusInfo system_bus_info; |
218 |
|
219 |
#endif
|