1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 **************************************************************************** 11 ****************************************************************************/ 12 #ifndef _DEVICE_H_ 13 #define _DEVICE_H_ 14 15 #include <linux/ioport.h> 16 #include <linux/kobject.h> 17 #include <linux/klist.h> 18 #include <linux/list.h> 19 #include <linux/types.h> 20 #include <linux/module.h> 21 #include <linux/pm.h> 22 #include <asm/semaphore.h> 23 #include <asm/atomic.h> 24 25 #define DEVICE_NAME_SIZE 50 26 #define DEVICE_NAME_HALF __stringify(20) 27 #define DEVICE_ID_SIZE 32 28 #define BUS_ID_SIZE KOBJ_NAME_LEN 29 30 struct device; 31 struct device_driver; 32 struct class; 33 struct class_device; 34 35 struct bus_type { 36 const char * name; 37 38 struct subsystem subsys; 39 struct kset drivers; 40 struct kset devices; 41 struct klist klist_devices; 42 struct klist klist_drivers; 43 44 struct bus_attribute * bus_attrs; 45 struct device_attribute * dev_attrs; 46 struct driver_attribute * drv_attrs; 47 48 int (*match)(struct device * dev, struct device_driver * drv); 49 int (*uevent)(struct device *dev, char **envp, 50 int num_envp, char *buffer, int buffer_size); 51 int (*probe)(struct device * dev); 52 int (*remove)(struct device * dev); 53 void (*shutdown)(struct device * dev); 54 int (*suspend)(struct device * dev, pm_message_t state); 55 int (*resume)(struct device * dev); 56 }; 57 58 struct device * bus_find_device(struct bus_type *bus, struct device *start, 59 void *data, int (*match)(struct device *, void *)); 60 61 struct bus_attribute { 62 struct attribute attr; 63 ssize_t (*show)(struct bus_type *, char * buf); 64 ssize_t (*store)(struct bus_type *, const char * buf, size_t count); 65 }; 66 67 #define BUS_ATTR(_name,_mode,_show,_store) struct bus_attribute bus_attr_##_name = __ATTR(_name,_mode,_show,_store) 68 69 struct device_driver { 70 const char * name; 71 struct bus_type * bus; 72 73 struct completion unloaded; 74 struct kobject kobj; 75 struct klist klist_devices; 76 struct klist_node knode_bus; 77 78 struct module * owner; 79 80 int (*probe) (struct device * dev); 81 int (*remove) (struct device * dev); 82 void (*shutdown) (struct device * dev); 83 int (*suspend) (struct device * dev, pm_message_t state); 84 int (*resume) (struct device * dev); 85 }; 86 87 struct driver_attribute { 88 struct attribute attr; 89 ssize_t (*show)(struct device_driver *, char * buf); 90 ssize_t (*store)(struct device_driver *, const char * buf, size_t count); 91 }; 92 93 #define DRIVER_ATTR(_name,_mode,_show,_store) struct driver_attribute driver_attr_##_name = __ATTR(_name,_mode,_show,_store) 94 95 struct device * driver_find_device(struct device_driver *drv, 96 struct device *start, void *data, 97 int (*match)(struct device *, void *)); 98 99 struct class { 100 const char * name; 101 struct module * owner; 102 103 struct subsystem subsys; 104 struct list_head children; 105 struct list_head devices; 106 struct list_head interfaces; 107 struct semaphore sem; 108 109 struct class_attribute * class_attrs; 110 struct class_device_attribute * class_dev_attrs; 111 112 int (*uevent)(struct class_device *dev, char **envp, 113 int num_envp, char *buffer, int buffer_size); 114 115 void (*release)(struct class_device *dev); 116 void (*class_release)(struct class *class); 117 }; 118 119 struct class_attribute { 120 struct attribute attr; 121 ssize_t (*show)(struct class *, char * buf); 122 ssize_t (*store)(struct class *, const char * buf, size_t count); 123 }; 124 125 #define CLASS_ATTR(_name,_mode,_show,_store) struct class_attribute class_attr_##_name = __ATTR(_name,_mode,_show,_store) 126 127 struct class_device_attribute { 128 struct attribute attr; 129 ssize_t (*show)(struct class_device *, char * buf); 130 ssize_t (*store)(struct class_device *, const char * buf, size_t count); 131 }; 132 133 #define CLASS_DEVICE_ATTR(_name,_mode,_show,_store) struct class_device_attribute class_device_attr_##_name = __ATTR(_name,_mode,_show,_store) 134 135 struct class_device { 136 struct list_head node; 137 138 struct kobject kobj; 139 struct class * class; 140 dev_t devt; 141 struct class_device_attribute *devt_attr; 142 struct class_device_attribute uevent_attr; 143 struct device * dev; 144 void * class_data; 145 struct class_device *parent; 146 struct attribute_group ** groups; 147 148 void (*release)(struct class_device *dev); 149 int (*uevent)(struct class_device *dev, char **envp, 150 int num_envp, char *buffer, int buffer_size); 151 char class_id[BUS_ID_SIZE]; 152 }; 153 154 struct class_interface { 155 struct list_head node; 156 struct class *class; 157 158 int (*add) (struct class_device *, struct class_interface *); 159 void (*remove) (struct class_device *, struct class_interface *); 160 }; 161 162 struct device_attribute { 163 struct attribute attr; 164 ssize_t (*show)(struct device *dev, struct device_attribute *attr, 165 char *buf); 166 ssize_t (*store)(struct device *dev, struct device_attribute *attr, 167 const char *buf, size_t count); 168 }; 169 170 #define DEVICE_ATTR(_name,_mode,_show,_store) struct device_attribute dev_attr_##_name = __ATTR(_name,_mode,_show,_store) 171 172 struct device { 173 struct klist klist_children; 174 struct klist_node knode_parent; 175 struct klist_node knode_driver; 176 struct klist_node knode_bus; 177 struct device * parent; 178 179 struct kobject kobj; 180 char bus_id[BUS_ID_SIZE]; 181 struct device_attribute uevent_attr; 182 struct device_attribute *devt_attr; 183 184 struct semaphore sem; 185 186 struct bus_type * bus; 187 struct device_driver *driver; 188 void *driver_data; 189 void *platform_data; 190 void *firmware_data; 191 struct dev_pm_info power; 192 193 u64 *dma_mask; 194 u64 coherent_dma_mask; 195 196 struct list_head dma_pools; 197 198 struct dma_coherent_mem *dma_mem; 199 200 struct list_head node; 201 struct class *class; 202 dev_t devt; 203 204 void (*release)(struct device * dev); 205 }; 206 207 #define dev_printk(level, dev, format, arg...) printk(level "%s %s: " format , dev_driver_string(dev) , (dev)->bus_id , ## arg) 208 209 #ifdef DEBUG 210 #define dev_dbg(dev, format, arg...) dev_printk(KERN_DEBUG , dev , format , ## arg) 211 #else 212 #define dev_dbg(dev, format, arg...) do { (void)(dev); } while (0) 213 #endif 214 215 #define dev_err(dev, format, arg...) dev_printk(KERN_ERR , dev , format , ## arg) 216 #define dev_info(dev, format, arg...) dev_printk(KERN_INFO , dev , format , ## arg) 217 #define dev_warn(dev, format, arg...) dev_printk(KERN_WARNING , dev , format , ## arg) 218 #define dev_notice(dev, format, arg...) dev_printk(KERN_NOTICE , dev , format , ## arg) 219 220 #define MODULE_ALIAS_CHARDEV(major,minor) MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor)) 221 #define MODULE_ALIAS_CHARDEV_MAJOR(major) MODULE_ALIAS("char-major-" __stringify(major) "-*") 222 #endif 223
