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bbbf508d RK |
1 | /* |
2 | * platform_device.h - generic, centralized driver model | |
3 | * | |
4 | * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org> | |
5 | * | |
6 | * This file is released under the GPLv2 | |
7 | * | |
8 | * See Documentation/driver-model/ for more information. | |
9 | */ | |
10 | ||
11 | #ifndef _PLATFORM_DEVICE_H_ | |
12 | #define _PLATFORM_DEVICE_H_ | |
13 | ||
14 | #include <linux/device.h> | |
57fee4a5 | 15 | #include <linux/mod_devicetable.h> |
bbbf508d RK |
16 | |
17 | struct platform_device { | |
18 | const char * name; | |
1359555e | 19 | int id; |
bbbf508d RK |
20 | struct device dev; |
21 | u32 num_resources; | |
22 | struct resource * resource; | |
57fee4a5 EM |
23 | |
24 | struct platform_device_id *id_entry; | |
bbbf508d RK |
25 | }; |
26 | ||
57fee4a5 EM |
27 | #define platform_get_device_id(pdev) ((pdev)->id_entry) |
28 | ||
bbbf508d RK |
29 | #define to_platform_device(x) container_of((x), struct platform_device, dev) |
30 | ||
31 | extern int platform_device_register(struct platform_device *); | |
32 | extern void platform_device_unregister(struct platform_device *); | |
33 | ||
34 | extern struct bus_type platform_bus_type; | |
35 | extern struct device platform_bus; | |
36 | ||
37 | extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int); | |
38 | extern int platform_get_irq(struct platform_device *, unsigned int); | |
c0afe7ba LW |
39 | extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, const char *); |
40 | extern int platform_get_irq_byname(struct platform_device *, const char *); | |
bbbf508d RK |
41 | extern int platform_add_devices(struct platform_device **, int); |
42 | ||
ae72cddb | 43 | extern struct platform_device *platform_device_register_simple(const char *, int id, |
1359555e | 44 | struct resource *, unsigned int); |
d8bf2540 DB |
45 | extern struct platform_device *platform_device_register_data(struct device *, |
46 | const char *, int, const void *, size_t); | |
bbbf508d | 47 | |
1359555e | 48 | extern struct platform_device *platform_device_alloc(const char *name, int id); |
37c12e74 | 49 | extern int platform_device_add_resources(struct platform_device *pdev, struct resource *res, unsigned int num); |
6eefd34f | 50 | extern int platform_device_add_data(struct platform_device *pdev, const void *data, size_t size); |
37c12e74 | 51 | extern int platform_device_add(struct platform_device *pdev); |
93ce3061 | 52 | extern void platform_device_del(struct platform_device *pdev); |
37c12e74 RK |
53 | extern void platform_device_put(struct platform_device *pdev); |
54 | ||
00d3dcdd RK |
55 | struct platform_driver { |
56 | int (*probe)(struct platform_device *); | |
57 | int (*remove)(struct platform_device *); | |
58 | void (*shutdown)(struct platform_device *); | |
59 | int (*suspend)(struct platform_device *, pm_message_t state); | |
386415d8 DB |
60 | int (*suspend_late)(struct platform_device *, pm_message_t state); |
61 | int (*resume_early)(struct platform_device *); | |
00d3dcdd RK |
62 | int (*resume)(struct platform_device *); |
63 | struct device_driver driver; | |
57fee4a5 | 64 | struct platform_device_id *id_table; |
00d3dcdd RK |
65 | }; |
66 | ||
67 | extern int platform_driver_register(struct platform_driver *); | |
68 | extern void platform_driver_unregister(struct platform_driver *); | |
69 | ||
c67334fb DB |
70 | /* non-hotpluggable platform devices may use this so that probe() and |
71 | * its support may live in __init sections, conserving runtime memory. | |
72 | */ | |
73 | extern int platform_driver_probe(struct platform_driver *driver, | |
74 | int (*probe)(struct platform_device *)); | |
75 | ||
00d3dcdd RK |
76 | #define platform_get_drvdata(_dev) dev_get_drvdata(&(_dev)->dev) |
77 | #define platform_set_drvdata(_dev,data) dev_set_drvdata(&(_dev)->dev, (data)) | |
78 | ||
13977091 MD |
79 | /* early platform driver interface */ |
80 | struct early_platform_driver { | |
81 | const char *class_str; | |
82 | struct platform_driver *pdrv; | |
83 | struct list_head list; | |
84 | int requested_id; | |
85 | }; | |
86 | ||
87 | #define EARLY_PLATFORM_ID_UNSET -2 | |
88 | #define EARLY_PLATFORM_ID_ERROR -3 | |
89 | ||
90 | extern int early_platform_driver_register(struct early_platform_driver *epdrv, | |
91 | char *buf); | |
92 | extern void early_platform_add_devices(struct platform_device **devs, int num); | |
93 | ||
94 | static inline int is_early_platform_device(struct platform_device *pdev) | |
95 | { | |
96 | return !pdev->dev.driver; | |
97 | } | |
98 | ||
99 | extern void early_platform_driver_register_all(char *class_str); | |
100 | extern int early_platform_driver_probe(char *class_str, | |
101 | int nr_probe, int user_only); | |
102 | extern void early_platform_cleanup(void); | |
103 | ||
104 | ||
105 | #ifndef MODULE | |
106 | #define early_platform_init(class_string, platform_driver) \ | |
107 | static __initdata struct early_platform_driver early_driver = { \ | |
108 | .class_str = class_string, \ | |
109 | .pdrv = platform_driver, \ | |
110 | .requested_id = EARLY_PLATFORM_ID_UNSET, \ | |
111 | }; \ | |
112 | static int __init early_platform_driver_setup_func(char *buf) \ | |
113 | { \ | |
114 | return early_platform_driver_register(&early_driver, buf); \ | |
115 | } \ | |
116 | early_param(class_string, early_platform_driver_setup_func) | |
117 | #else /* MODULE */ | |
118 | #define early_platform_init(class_string, platform_driver) | |
119 | #endif /* MODULE */ | |
120 | ||
bbbf508d | 121 | #endif /* _PLATFORM_DEVICE_H_ */ |