Rev 6102 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6082 | serge | 1 | /* |
| 2 | * device.h - generic, centralized driver model |
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| 3 | * |
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| 4 | * Copyright (c) 2001-2003 Patrick Mochel |
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| 5 | * Copyright (c) 2004-2009 Greg Kroah-Hartman |
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| 6 | * Copyright (c) 2008-2009 Novell Inc. |
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| 7 | * |
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| 8 | * This file is released under the GPLv2 |
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| 9 | * |
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| 10 | * See Documentation/driver-model/ for more information. |
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| 11 | */ |
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| 12 | |||
| 13 | #ifndef _DEVICE_H_ |
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| 14 | #define _DEVICE_H_ |
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| 15 | |||
| 6102 | serge | 16 | #include |
| 17 | #include |
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| 6082 | serge | 18 | #include |
| 19 | #include |
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| 20 | #include |
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| 21 | #include |
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| 6102 | serge | 22 | #include |
| 23 | #include |
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| 24 | #include |
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| 6082 | serge | 25 | struct device; |
| 26 | enum probe_type { |
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| 27 | PROBE_DEFAULT_STRATEGY, |
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| 28 | PROBE_PREFER_ASYNCHRONOUS, |
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| 29 | PROBE_FORCE_SYNCHRONOUS, |
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| 30 | }; |
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| 31 | |||
| 32 | struct device_driver { |
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| 33 | const char *name; |
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| 34 | const char *mod_name; /* used for built-in modules */ |
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| 35 | |||
| 36 | bool suppress_bind_attrs; /* disables bind/unbind via sysfs */ |
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| 37 | enum probe_type probe_type; |
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| 38 | }; |
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| 39 | |||
| 40 | struct device { |
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| 41 | struct device *parent; |
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| 42 | |||
| 6102 | serge | 43 | struct kobject kobj; |
| 6082 | serge | 44 | const char *init_name; /* initial name of the device */ |
| 45 | struct device_driver *driver; /* which driver has allocated this |
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| 46 | device */ |
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| 47 | void *platform_data; /* Platform specific data, device |
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| 48 | core doesn't touch it */ |
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| 49 | void *driver_data; /* Driver data, set and get with |
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| 50 | dev_set/get_drvdata */ |
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| 51 | #ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN |
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| 52 | struct irq_domain *msi_domain; |
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| 53 | #endif |
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| 54 | #ifdef CONFIG_PINCTRL |
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| 55 | struct dev_pin_info *pins; |
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| 56 | #endif |
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| 57 | #ifdef CONFIG_GENERIC_MSI_IRQ |
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| 58 | struct list_head msi_list; |
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| 59 | #endif |
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| 60 | |||
| 61 | #ifdef CONFIG_NUMA |
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| 62 | int numa_node; /* NUMA node this device is close to */ |
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| 63 | #endif |
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| 6102 | serge | 64 | u64 *dma_mask; /* dma mask (if dma'able device) */ |
| 65 | u64 coherent_dma_mask;/* Like dma_mask, but for |
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| 66 | alloc_coherent mappings as |
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| 67 | not all hardware supports |
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| 68 | 64 bit addresses for consistent |
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| 69 | allocations such descriptors. */ |
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| 70 | unsigned long dma_pfn_offset; |
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| 6082 | serge | 71 | #ifdef CONFIG_DMA_CMA |
| 72 | struct cma *cma_area; /* contiguous memory area for dma |
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| 73 | allocations */ |
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| 74 | #endif |
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| 75 | }; |
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| 76 | |||
| 6102 | serge | 77 | static inline struct device *kobj_to_dev(struct kobject *kobj) |
| 78 | { |
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| 79 | return container_of(kobj, struct device, kobj); |
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| 80 | } |
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| 81 | |||
| 82 | |||
| 83 | static inline const char *dev_name(const struct device *dev) |
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| 84 | { |
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| 85 | /* Use the init name until the kobject becomes available */ |
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| 86 | if (dev->init_name) |
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| 87 | return dev->init_name; |
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| 88 | |||
| 89 | return kobject_name(&dev->kobj); |
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| 90 | } |
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| 91 | |||
| 6082 | serge | 92 | extern __printf(2, 3) |
| 93 | int dev_set_name(struct device *dev, const char *name, ...); |
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| 94 | |||
| 95 | #ifdef CONFIG_NUMA |
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| 96 | static inline int dev_to_node(struct device *dev) |
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| 97 | { |
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| 98 | return dev->numa_node; |
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| 99 | } |
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| 100 | static inline void set_dev_node(struct device *dev, int node) |
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| 101 | { |
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| 102 | dev->numa_node = node; |
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| 103 | } |
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| 104 | #else |
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| 105 | static inline int dev_to_node(struct device *dev) |
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| 106 | { |
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| 107 | return -1; |
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| 108 | } |
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| 109 | static inline void set_dev_node(struct device *dev, int node) |
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| 110 | { |
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| 111 | } |
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| 112 | #endif |
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| 113 | |||
| 114 | |||
| 115 | static inline void *dev_get_drvdata(const struct device *dev) |
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| 116 | { |
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| 117 | return dev->driver_data; |
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| 118 | } |
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| 119 | |||
| 120 | static inline void dev_set_drvdata(struct device *dev, void *data) |
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| 121 | { |
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| 122 | dev->driver_data = data; |
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| 123 | } |
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| 124 | |||
| 7143 | serge | 125 | static inline __printf(2, 3) |
| 126 | void dev_notice(const struct device *dev, const char *fmt, ...) |
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| 127 | {} |
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| 6082 | serge | 128 | |
| 129 | |||
| 130 | #endif /* _DEVICE_H_ */ |