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11#ifndef _PLATFORM_DEVICE_H_
12#define _PLATFORM_DEVICE_H_
13
14#include <linux/device.h>
15#include <linux/mod_devicetable.h>
16
17struct mfd_cell;
18
19struct platform_device {
20 const char * name;
21 int id;
22 struct device dev;
23 u32 num_resources;
24 struct resource * resource;
25
26 const struct platform_device_id *id_entry;
27
28
29 struct mfd_cell *mfd_cell;
30
31
32 struct pdev_archdata archdata;
33};
34
35#define platform_get_device_id(pdev) ((pdev)->id_entry)
36
37#define to_platform_device(x) container_of((x), struct platform_device, dev)
38
39extern int platform_device_register(struct platform_device *);
40extern void platform_device_unregister(struct platform_device *);
41
42extern struct bus_type platform_bus_type;
43extern struct device platform_bus;
44
45extern void arch_setup_pdev_archdata(struct platform_device *);
46extern struct resource *platform_get_resource(struct platform_device *, unsigned int, unsigned int);
47extern int platform_get_irq(struct platform_device *, unsigned int);
48extern struct resource *platform_get_resource_byname(struct platform_device *, unsigned int, const char *);
49extern int platform_get_irq_byname(struct platform_device *, const char *);
50extern int platform_add_devices(struct platform_device **, int);
51
52struct platform_device_info {
53 struct device *parent;
54
55 const char *name;
56 int id;
57
58 const struct resource *res;
59 unsigned int num_res;
60
61 const void *data;
62 size_t size_data;
63 u64 dma_mask;
64};
65extern struct platform_device *platform_device_register_full(
66 const struct platform_device_info *pdevinfo);
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82static inline struct platform_device *platform_device_register_resndata(
83 struct device *parent, const char *name, int id,
84 const struct resource *res, unsigned int num,
85 const void *data, size_t size) {
86
87 struct platform_device_info pdevinfo = {
88 .parent = parent,
89 .name = name,
90 .id = id,
91 .res = res,
92 .num_res = num,
93 .data = data,
94 .size_data = size,
95 .dma_mask = 0,
96 };
97
98 return platform_device_register_full(&pdevinfo);
99}
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123static inline struct platform_device *platform_device_register_simple(
124 const char *name, int id,
125 const struct resource *res, unsigned int num)
126{
127 return platform_device_register_resndata(NULL, name, id,
128 res, num, NULL, 0);
129}
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147static inline struct platform_device *platform_device_register_data(
148 struct device *parent, const char *name, int id,
149 const void *data, size_t size)
150{
151 return platform_device_register_resndata(parent, name, id,
152 NULL, 0, data, size);
153}
154
155extern struct platform_device *platform_device_alloc(const char *name, int id);
156extern int platform_device_add_resources(struct platform_device *pdev,
157 const struct resource *res,
158 unsigned int num);
159extern int platform_device_add_data(struct platform_device *pdev, const void *data, size_t size);
160extern int platform_device_add(struct platform_device *pdev);
161extern void platform_device_del(struct platform_device *pdev);
162extern void platform_device_put(struct platform_device *pdev);
163
164struct platform_driver {
165 int (*probe)(struct platform_device *);
166 int (*remove)(struct platform_device *);
167 void (*shutdown)(struct platform_device *);
168 int (*suspend)(struct platform_device *, pm_message_t state);
169 int (*resume)(struct platform_device *);
170 struct device_driver driver;
171 const struct platform_device_id *id_table;
172};
173
174extern int platform_driver_register(struct platform_driver *);
175extern void platform_driver_unregister(struct platform_driver *);
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180extern int platform_driver_probe(struct platform_driver *driver,
181 int (*probe)(struct platform_device *));
182
183static inline void *platform_get_drvdata(const struct platform_device *pdev)
184{
185 return dev_get_drvdata(&pdev->dev);
186}
187
188static inline void platform_set_drvdata(struct platform_device *pdev, void *data)
189{
190 dev_set_drvdata(&pdev->dev, data);
191}
192
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197
198#define module_platform_driver(__platform_driver) \
199 module_driver(__platform_driver, platform_driver_register, \
200 platform_driver_unregister)
201
202extern struct platform_device *platform_create_bundle(struct platform_driver *driver,
203 int (*probe)(struct platform_device *),
204 struct resource *res, unsigned int n_res,
205 const void *data, size_t size);
206
207
208struct early_platform_driver {
209 const char *class_str;
210 struct platform_driver *pdrv;
211 struct list_head list;
212 int requested_id;
213 char *buffer;
214 int bufsize;
215};
216
217#define EARLY_PLATFORM_ID_UNSET -2
218#define EARLY_PLATFORM_ID_ERROR -3
219
220extern int early_platform_driver_register(struct early_platform_driver *epdrv,
221 char *buf);
222extern void early_platform_add_devices(struct platform_device **devs, int num);
223
224static inline int is_early_platform_device(struct platform_device *pdev)
225{
226 return !pdev->dev.driver;
227}
228
229extern void early_platform_driver_register_all(char *class_str);
230extern int early_platform_driver_probe(char *class_str,
231 int nr_probe, int user_only);
232extern void early_platform_cleanup(void);
233
234#define early_platform_init(class_string, platdrv) \
235 early_platform_init_buffer(class_string, platdrv, NULL, 0)
236
237#ifndef MODULE
238#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz) \
239static __initdata struct early_platform_driver early_driver = { \
240 .class_str = class_string, \
241 .buffer = buf, \
242 .bufsize = bufsiz, \
243 .pdrv = platdrv, \
244 .requested_id = EARLY_PLATFORM_ID_UNSET, \
245}; \
246static int __init early_platform_driver_setup_func(char *buffer) \
247{ \
248 return early_platform_driver_register(&early_driver, buffer); \
249} \
250early_param(class_string, early_platform_driver_setup_func)
251#else
252#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz) \
253static inline char *early_platform_driver_setup_func(void) \
254{ \
255 return bufsiz ? buf : NULL; \
256}
257#endif
258
259#ifdef CONFIG_SUSPEND
260extern int platform_pm_suspend(struct device *dev);
261extern int platform_pm_resume(struct device *dev);
262#else
263#define platform_pm_suspend NULL
264#define platform_pm_resume NULL
265#endif
266
267#ifdef CONFIG_HIBERNATE_CALLBACKS
268extern int platform_pm_freeze(struct device *dev);
269extern int platform_pm_thaw(struct device *dev);
270extern int platform_pm_poweroff(struct device *dev);
271extern int platform_pm_restore(struct device *dev);
272#else
273#define platform_pm_freeze NULL
274#define platform_pm_thaw NULL
275#define platform_pm_poweroff NULL
276#define platform_pm_restore NULL
277#endif
278
279#ifdef CONFIG_PM_SLEEP
280#define USE_PLATFORM_PM_SLEEP_OPS \
281 .suspend = platform_pm_suspend, \
282 .resume = platform_pm_resume, \
283 .freeze = platform_pm_freeze, \
284 .thaw = platform_pm_thaw, \
285 .poweroff = platform_pm_poweroff, \
286 .restore = platform_pm_restore,
287#else
288#define USE_PLATFORM_PM_SLEEP_OPS
289#endif
290
291#endif
292