#include <linux/pm.h>
#include <asm/semaphore.h>
#include <asm/atomic.h>
+#include <asm/device.h>
#define DEVICE_NAME_SIZE 50
#define DEVICE_NAME_HALF __stringify(20) /* Less than half to accommodate slop */
struct klist_node knode_bus;
struct module * owner;
+ const char * mod_name; /* used for built-in modules */
int (*probe) (struct device * dev);
int (*remove) (struct device * dev);
__attribute__((format(printf,5,6)));
extern void class_device_destroy(struct class *cls, dev_t devt);
+struct device_type {
+ struct device_attribute *attrs;
+ int (*uevent)(struct device *dev, char **envp, int num_envp,
+ char *buffer, int buffer_size);
+ void (*release)(struct device *dev);
+};
+
/* interface for exporting device attributes */
struct device_attribute {
struct attribute attr;
struct bin_attribute *attr);
extern void device_remove_bin_file(struct device *dev,
struct bin_attribute *attr);
+
+/* device resource management */
+typedef void (*dr_release_t)(struct device *dev, void *res);
+typedef int (*dr_match_t)(struct device *dev, void *res, void *match_data);
+
+#ifdef CONFIG_DEBUG_DEVRES
+extern void * __devres_alloc(dr_release_t release, size_t size, gfp_t gfp,
+ const char *name);
+#define devres_alloc(release, size, gfp) \
+ __devres_alloc(release, size, gfp, #release)
+#else
+extern void * devres_alloc(dr_release_t release, size_t size, gfp_t gfp);
+#endif
+extern void devres_free(void *res);
+extern void devres_add(struct device *dev, void *res);
+extern void * devres_find(struct device *dev, dr_release_t release,
+ dr_match_t match, void *match_data);
+extern void * devres_get(struct device *dev, void *new_res,
+ dr_match_t match, void *match_data);
+extern void * devres_remove(struct device *dev, dr_release_t release,
+ dr_match_t match, void *match_data);
+extern int devres_destroy(struct device *dev, dr_release_t release,
+ dr_match_t match, void *match_data);
+
+/* devres group */
+extern void * __must_check devres_open_group(struct device *dev, void *id,
+ gfp_t gfp);
+extern void devres_close_group(struct device *dev, void *id);
+extern void devres_remove_group(struct device *dev, void *id);
+extern int devres_release_group(struct device *dev, void *id);
+
+/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */
+extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
+extern void devm_kfree(struct device *dev, void *p);
+
struct device {
struct klist klist_children;
struct klist_node knode_parent; /* node in sibling list */
struct kobject kobj;
char bus_id[BUS_ID_SIZE]; /* position on parent bus */
+ struct device_type *type;
unsigned is_registered:1;
struct device_attribute uevent_attr;
struct device_attribute *devt_attr;
void *driver_data; /* data private to the driver */
void *platform_data; /* Platform specific data, device
core doesn't touch it */
- void *firmware_data; /* Firmware specific data (e.g. ACPI,
- BIOS data),reserved for device core*/
struct dev_pm_info power;
+#ifdef CONFIG_NUMA
+ int numa_node; /* NUMA node this device is close to */
+#endif
u64 *dma_mask; /* dma mask (if dma'able device) */
u64 coherent_dma_mask;/* Like dma_mask, but for
alloc_coherent mappings as
struct dma_coherent_mem *dma_mem; /* internal for coherent mem
override */
+ /* arch specific additions */
+ struct dev_archdata archdata;
+
+ spinlock_t devres_lock;
+ struct list_head devres_head;
/* class_device migration path */
struct list_head node;
- struct class *class; /* optional*/
+ struct class *class;
dev_t devt; /* dev_t, creates the sysfs "dev" */
struct attribute_group **groups; /* optional groups */
+ int uevent_suppress;
void (*release)(struct device * dev);
};
+#ifdef CONFIG_NUMA
+static inline int dev_to_node(struct device *dev)
+{
+ return dev->numa_node;
+}
+static inline void set_dev_node(struct device *dev, int node)
+{
+ dev->numa_node = node;
+}
+#else
+static inline int dev_to_node(struct device *dev)
+{
+ return -1;
+}
+static inline void set_dev_node(struct device *dev, int node)
+{
+}
+#endif
+
static inline void *
dev_get_drvdata (struct device *dev)
{
return dev->is_registered;
}
+void driver_init(void);
+
/*
* High level routines for use by the bus drivers
*/
extern void device_del(struct device * dev);
extern int device_for_each_child(struct device *, void *,
int (*fn)(struct device *, void *));
+extern struct device *device_find_child(struct device *, void *data,
+ int (*match)(struct device *, void *));
extern int device_rename(struct device *dev, char *new_name);
+extern int device_move(struct device *dev, struct device *new_parent);
/*
* Manual binding of a device to driver. See drivers/base/bus.c
__attribute__((format(printf,4,5)));
extern void device_destroy(struct class *cls, dev_t devt);
-extern int virtual_device_parent(struct device *dev);
-
/*
* Platform "fixup" functions - allow the platform to have their say
* about devices and actions that the general device layer doesn't