1
2
3
4
5
6
7
8
9#ifndef __LINUX_GREYBUS_H
10#define __LINUX_GREYBUS_H
11
12#ifdef __KERNEL__
13
14#include <linux/kernel.h>
15#include <linux/types.h>
16#include <linux/list.h>
17#include <linux/slab.h>
18#include <linux/device.h>
19#include <linux/module.h>
20#include <linux/pm_runtime.h>
21#include <linux/idr.h>
22
23#include <linux/greybus/greybus_id.h>
24#include <linux/greybus/greybus_manifest.h>
25#include <linux/greybus/greybus_protocols.h>
26#include <linux/greybus/manifest.h>
27#include <linux/greybus/hd.h>
28#include <linux/greybus/svc.h>
29#include <linux/greybus/control.h>
30#include <linux/greybus/module.h>
31#include <linux/greybus/interface.h>
32#include <linux/greybus/bundle.h>
33#include <linux/greybus/connection.h>
34#include <linux/greybus/operation.h>
35
36
37#define GREYBUS_VERSION_MAJOR 0x00
38#define GREYBUS_VERSION_MINOR 0x01
39
40#define GREYBUS_ID_MATCH_DEVICE \
41 (GREYBUS_ID_MATCH_VENDOR | GREYBUS_ID_MATCH_PRODUCT)
42
43#define GREYBUS_DEVICE(v, p) \
44 .match_flags = GREYBUS_ID_MATCH_DEVICE, \
45 .vendor = (v), \
46 .product = (p),
47
48#define GREYBUS_DEVICE_CLASS(c) \
49 .match_flags = GREYBUS_ID_MATCH_CLASS, \
50 .class = (c),
51
52
53#define CPORT_ID_MAX 4095
54#define CPORT_ID_BAD U16_MAX
55
56struct greybus_driver {
57 const char *name;
58
59 int (*probe)(struct gb_bundle *bundle,
60 const struct greybus_bundle_id *id);
61 void (*disconnect)(struct gb_bundle *bundle);
62
63 const struct greybus_bundle_id *id_table;
64
65 struct device_driver driver;
66};
67#define to_greybus_driver(d) container_of(d, struct greybus_driver, driver)
68
69static inline void greybus_set_drvdata(struct gb_bundle *bundle, void *data)
70{
71 dev_set_drvdata(&bundle->dev, data);
72}
73
74static inline void *greybus_get_drvdata(struct gb_bundle *bundle)
75{
76 return dev_get_drvdata(&bundle->dev);
77}
78
79
80int greybus_register_driver(struct greybus_driver *driver,
81 struct module *module, const char *mod_name);
82void greybus_deregister_driver(struct greybus_driver *driver);
83
84
85#define greybus_register(driver) \
86 greybus_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
87#define greybus_deregister(driver) \
88 greybus_deregister_driver(driver)
89
90
91
92
93
94
95
96
97
98#define module_greybus_driver(__greybus_driver) \
99 module_driver(__greybus_driver, greybus_register, greybus_deregister)
100
101int greybus_disabled(void);
102
103void gb_debugfs_init(void);
104void gb_debugfs_cleanup(void);
105struct dentry *gb_debugfs_get(void);
106
107extern struct bus_type greybus_bus_type;
108
109extern struct device_type greybus_hd_type;
110extern struct device_type greybus_module_type;
111extern struct device_type greybus_interface_type;
112extern struct device_type greybus_control_type;
113extern struct device_type greybus_bundle_type;
114extern struct device_type greybus_svc_type;
115
116static inline int is_gb_host_device(const struct device *dev)
117{
118 return dev->type == &greybus_hd_type;
119}
120
121static inline int is_gb_module(const struct device *dev)
122{
123 return dev->type == &greybus_module_type;
124}
125
126static inline int is_gb_interface(const struct device *dev)
127{
128 return dev->type == &greybus_interface_type;
129}
130
131static inline int is_gb_control(const struct device *dev)
132{
133 return dev->type == &greybus_control_type;
134}
135
136static inline int is_gb_bundle(const struct device *dev)
137{
138 return dev->type == &greybus_bundle_type;
139}
140
141static inline int is_gb_svc(const struct device *dev)
142{
143 return dev->type == &greybus_svc_type;
144}
145
146static inline bool cport_id_valid(struct gb_host_device *hd, u16 cport_id)
147{
148 return cport_id != CPORT_ID_BAD && cport_id < hd->num_cports;
149}
150
151#endif
152#endif
153