Rev 6102 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6082 | serge | 1 | /* |
| 2 | * device.h - generic, centralized driver model |
||
| 3 | * |
||
| 4 | * Copyright (c) 2001-2003 Patrick Mochel |
||
| 5 | * Copyright (c) 2004-2009 Greg Kroah-Hartman |
||
| 6 | * Copyright (c) 2008-2009 Novell Inc. |
||
| 7 | * |
||
| 8 | * This file is released under the GPLv2 |
||
| 9 | * |
||
| 10 | * See Documentation/driver-model/ for more information. |
||
| 11 | */ |
||
| 12 | |||
| 13 | #ifndef _DEVICE_H_ |
||
| 14 | #define _DEVICE_H_ |
||
| 15 | |||
| 16 | #include |
||
| 17 | #include |
||
| 18 | #include |
||
| 19 | #include |
||
| 20 | struct device; |
||
| 21 | enum probe_type { |
||
| 22 | PROBE_DEFAULT_STRATEGY, |
||
| 23 | PROBE_PREFER_ASYNCHRONOUS, |
||
| 24 | PROBE_FORCE_SYNCHRONOUS, |
||
| 25 | }; |
||
| 26 | |||
| 27 | struct device_driver { |
||
| 28 | const char *name; |
||
| 29 | const char *mod_name; /* used for built-in modules */ |
||
| 30 | |||
| 31 | bool suppress_bind_attrs; /* disables bind/unbind via sysfs */ |
||
| 32 | enum probe_type probe_type; |
||
| 33 | }; |
||
| 34 | |||
| 35 | struct device { |
||
| 36 | struct device *parent; |
||
| 37 | |||
| 38 | const char *init_name; /* initial name of the device */ |
||
| 39 | struct device_driver *driver; /* which driver has allocated this |
||
| 40 | device */ |
||
| 41 | void *platform_data; /* Platform specific data, device |
||
| 42 | core doesn't touch it */ |
||
| 43 | void *driver_data; /* Driver data, set and get with |
||
| 44 | dev_set/get_drvdata */ |
||
| 45 | #ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN |
||
| 46 | struct irq_domain *msi_domain; |
||
| 47 | #endif |
||
| 48 | #ifdef CONFIG_PINCTRL |
||
| 49 | struct dev_pin_info *pins; |
||
| 50 | #endif |
||
| 51 | #ifdef CONFIG_GENERIC_MSI_IRQ |
||
| 52 | struct list_head msi_list; |
||
| 53 | #endif |
||
| 54 | |||
| 55 | #ifdef CONFIG_NUMA |
||
| 56 | int numa_node; /* NUMA node this device is close to */ |
||
| 57 | #endif |
||
| 58 | #ifdef CONFIG_DMA_CMA |
||
| 59 | struct cma *cma_area; /* contiguous memory area for dma |
||
| 60 | allocations */ |
||
| 61 | #endif |
||
| 62 | }; |
||
| 63 | |||
| 64 | extern __printf(2, 3) |
||
| 65 | int dev_set_name(struct device *dev, const char *name, ...); |
||
| 66 | |||
| 67 | #ifdef CONFIG_NUMA |
||
| 68 | static inline int dev_to_node(struct device *dev) |
||
| 69 | { |
||
| 70 | return dev->numa_node; |
||
| 71 | } |
||
| 72 | static inline void set_dev_node(struct device *dev, int node) |
||
| 73 | { |
||
| 74 | dev->numa_node = node; |
||
| 75 | } |
||
| 76 | #else |
||
| 77 | static inline int dev_to_node(struct device *dev) |
||
| 78 | { |
||
| 79 | return -1; |
||
| 80 | } |
||
| 81 | static inline void set_dev_node(struct device *dev, int node) |
||
| 82 | { |
||
| 83 | } |
||
| 84 | #endif |
||
| 85 | |||
| 86 | |||
| 87 | static inline void *dev_get_drvdata(const struct device *dev) |
||
| 88 | { |
||
| 89 | return dev->driver_data; |
||
| 90 | } |
||
| 91 | |||
| 92 | static inline void dev_set_drvdata(struct device *dev, void *data) |
||
| 93 | { |
||
| 94 | dev->driver_data = data; |
||
| 95 | } |
||
| 96 | |||
| 97 | |||
| 98 | |||
| 99 | #endif /* _DEVICE_H_ */ |