cregit-Linux how code gets into the kernel

Release 4.15 include/linux/property.h

Directory: include/linux
/*
 * property.h - Unified device property interface.
 *
 * Copyright (C) 2014, Intel Corporation
 * Authors: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 *          Mika Westerberg <mika.westerberg@linux.intel.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef _LINUX_PROPERTY_H_

#define _LINUX_PROPERTY_H_

#include <linux/fwnode.h>
#include <linux/types.h>

struct device;


enum dev_prop_type {
	
DEV_PROP_U8,
	
DEV_PROP_U16,
	
DEV_PROP_U32,
	
DEV_PROP_U64,
	
DEV_PROP_STRING,
	
DEV_PROP_MAX,
};


enum dev_dma_attr {
	
DEV_DMA_NOT_SUPPORTED,
	
DEV_DMA_NON_COHERENT,
	
DEV_DMA_COHERENT,
};

struct fwnode_handle *dev_fwnode(struct device *dev);

bool device_property_present(struct device *dev, const char *propname);
int device_property_read_u8_array(struct device *dev, const char *propname,
				  u8 *val, size_t nval);
int device_property_read_u16_array(struct device *dev, const char *propname,
				   u16 *val, size_t nval);
int device_property_read_u32_array(struct device *dev, const char *propname,
				   u32 *val, size_t nval);
int device_property_read_u64_array(struct device *dev, const char *propname,
				   u64 *val, size_t nval);
int device_property_read_string_array(struct device *dev, const char *propname,
				      const char **val, size_t nval);
int device_property_read_string(struct device *dev, const char *propname,
				const char **val);
int device_property_match_string(struct device *dev,
				 const char *propname, const char *string);

bool fwnode_device_is_available(const struct fwnode_handle *fwnode);
bool fwnode_property_present(const struct fwnode_handle *fwnode,
			     const char *propname);
int fwnode_property_read_u8_array(const struct fwnode_handle *fwnode,
				  const char *propname, u8 *val,
				  size_t nval);
int fwnode_property_read_u16_array(const struct fwnode_handle *fwnode,
				   const char *propname, u16 *val,
				   size_t nval);
int fwnode_property_read_u32_array(const struct fwnode_handle *fwnode,
				   const char *propname, u32 *val,
				   size_t nval);
int fwnode_property_read_u64_array(const struct fwnode_handle *fwnode,
				   const char *propname, u64 *val,
				   size_t nval);
int fwnode_property_read_string_array(const struct fwnode_handle *fwnode,
				      const char *propname, const char **val,
				      size_t nval);
int fwnode_property_read_string(const struct fwnode_handle *fwnode,
				const char *propname, const char **val);
int fwnode_property_match_string(const struct fwnode_handle *fwnode,
				 const char *propname, const char *string);
int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode,
				       const char *prop, const char *nargs_prop,
				       unsigned int nargs, unsigned int index,
				       struct fwnode_reference_args *args);

struct fwnode_handle *fwnode_get_parent(const struct fwnode_handle *fwnode);
struct fwnode_handle *fwnode_get_next_parent(
	struct fwnode_handle *fwnode);
struct fwnode_handle *fwnode_get_next_child_node(
	const struct fwnode_handle *fwnode, struct fwnode_handle *child);


#define fwnode_for_each_child_node(fwnode, child)			\
	for (child = fwnode_get_next_child_node(fwnode, NULL); child;   \
             child = fwnode_get_next_child_node(fwnode, child))

struct fwnode_handle *device_get_next_child_node(
	struct device *dev, struct fwnode_handle *child);


#define device_for_each_child_node(dev, child)				\
	for (child = device_get_next_child_node(dev, NULL); child;      \
             child = device_get_next_child_node(dev, child))

struct fwnode_handle *fwnode_get_named_child_node(
	const struct fwnode_handle *fwnode, const char *childname);
struct fwnode_handle *device_get_named_child_node(struct device *dev,
						  const char *childname);

struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode);
void fwnode_handle_put(struct fwnode_handle *fwnode);

unsigned int device_get_child_node_count(struct device *dev);


static inline bool device_property_read_bool(struct device *dev, const char *propname) { return device_property_present(dev, propname); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki25100.00%1100.00%
Total25100.00%1100.00%


static inline int device_property_read_u8(struct device *dev, const char *propname, u8 *val) { return device_property_read_u8_array(dev, propname, val, 1); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki33100.00%1100.00%
Total33100.00%1100.00%


static inline int device_property_read_u16(struct device *dev, const char *propname, u16 *val) { return device_property_read_u16_array(dev, propname, val, 1); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki33100.00%1100.00%
Total33100.00%1100.00%


static inline int device_property_read_u32(struct device *dev, const char *propname, u32 *val) { return device_property_read_u32_array(dev, propname, val, 1); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki33100.00%1100.00%
Total33100.00%1100.00%


static inline int device_property_read_u64(struct device *dev, const char *propname, u64 *val) { return device_property_read_u64_array(dev, propname, val, 1); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki33100.00%1100.00%
Total33100.00%1100.00%


static inline bool fwnode_property_read_bool(const struct fwnode_handle *fwnode, const char *propname) { return fwnode_property_present(fwnode, propname); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki2596.15%150.00%
Sakari Ailus13.85%150.00%
Total26100.00%2100.00%


static inline int fwnode_property_read_u8(const struct fwnode_handle *fwnode, const char *propname, u8 *val) { return fwnode_property_read_u8_array(fwnode, propname, val, 1); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki3397.06%150.00%
Sakari Ailus12.94%150.00%
Total34100.00%2100.00%


static inline int fwnode_property_read_u16(const struct fwnode_handle *fwnode, const char *propname, u16 *val) { return fwnode_property_read_u16_array(fwnode, propname, val, 1); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki3397.06%150.00%
Sakari Ailus12.94%150.00%
Total34100.00%2100.00%


static inline int fwnode_property_read_u32(const struct fwnode_handle *fwnode, const char *propname, u32 *val) { return fwnode_property_read_u32_array(fwnode, propname, val, 1); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki3397.06%150.00%
Sakari Ailus12.94%150.00%
Total34100.00%2100.00%


static inline int fwnode_property_read_u64(const struct fwnode_handle *fwnode, const char *propname, u64 *val) { return fwnode_property_read_u64_array(fwnode, propname, val, 1); }

Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki3397.06%150.00%
Sakari Ailus12.94%150.00%
Total34100.00%2100.00%

/** * struct property_entry - "Built-in" device property representation. * @name: Name of the property. * @length: Length of data making up the value. * @is_array: True when the property is an array. * @is_string: True when property is a string. * @pointer: Pointer to the property (an array of items of the given type). * @value: Value of the property (when it is a single item of the given type). */ struct property_entry { const char *name; size_t length; bool is_array; bool is_string; union { union { const void *raw_data; const u8 *u8_data; const u16 *u16_data; const u32 *u32_data; const u64 *u64_data; const char * const *str; } pointer; union { unsigned long long raw_data; u8 u8_data; u16 u16_data; u32 u32_data; u64 u64_data; const char *str; } value; }; }; /* * Note: the below four initializers for the anonymous union are carefully * crafted to avoid gcc-4.4.4's problems with initialization of anon unions * and structs. */ #define PROPERTY_ENTRY_INTEGER_ARRAY(_name_, _type_, _val_) \ { \ .name = _name_, \ .length = ARRAY_SIZE(_val_) * sizeof(_type_), \ .is_array = true, \ .is_string = false, \ { .pointer = { ._type_##_data = _val_ } }, \ } #define PROPERTY_ENTRY_U8_ARRAY(_name_, _val_) \ PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u8, _val_) #define PROPERTY_ENTRY_U16_ARRAY(_name_, _val_) \ PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u16, _val_) #define PROPERTY_ENTRY_U32_ARRAY(_name_, _val_) \ PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u32, _val_) #define PROPERTY_ENTRY_U64_ARRAY(_name_, _val_) \ PROPERTY_ENTRY_INTEGER_ARRAY(_name_, u64, _val_) #define PROPERTY_ENTRY_STRING_ARRAY(_name_, _val_) \ { \ .name = _name_, \ .length = ARRAY_SIZE(_val_) * sizeof(const char *), \ .is_array = true, \ .is_string = true, \ { .pointer = { .str = _val_ } }, \ } #define PROPERTY_ENTRY_INTEGER(_name_, _type_, _val_) \ { \ .name = _name_, \ .length = sizeof(_type_), \ .is_string = false, \ { .value = { ._type_##_data = _val_ } }, \ } #define PROPERTY_ENTRY_U8(_name_, _val_) \ PROPERTY_ENTRY_INTEGER(_name_, u8, _val_) #define PROPERTY_ENTRY_U16(_name_, _val_) \ PROPERTY_ENTRY_INTEGER(_name_, u16, _val_) #define PROPERTY_ENTRY_U32(_name_, _val_) \ PROPERTY_ENTRY_INTEGER(_name_, u32, _val_) #define PROPERTY_ENTRY_U64(_name_, _val_) \ PROPERTY_ENTRY_INTEGER(_name_, u64, _val_) #define PROPERTY_ENTRY_STRING(_name_, _val_) \ { \ .name = _name_, \ .length = sizeof(_val_), \ .is_string = true, \ { .value = { .str = _val_ } }, \ } #define PROPERTY_ENTRY_BOOL(_name_) \ { \ .name = _name_, \ } struct property_entry * property_entries_dup(const struct property_entry *properties); void property_entries_free(const struct property_entry *properties); int device_add_properties(struct device *dev, const struct property_entry *properties); void device_remove_properties(struct device *dev); bool device_dma_supported(struct device *dev); enum dev_dma_attr device_get_dma_attr(struct device *dev); int device_get_phy_mode(struct device *dev); void *device_get_mac_address(struct device *dev, char *addr, int alen); struct fwnode_handle *fwnode_graph_get_next_endpoint( const struct fwnode_handle *fwnode, struct fwnode_handle *prev); struct fwnode_handle * fwnode_graph_get_port_parent(const struct fwnode_handle *fwnode); struct fwnode_handle *fwnode_graph_get_remote_port_parent( const struct fwnode_handle *fwnode); struct fwnode_handle *fwnode_graph_get_remote_port( const struct fwnode_handle *fwnode); struct fwnode_handle *fwnode_graph_get_remote_endpoint( const struct fwnode_handle *fwnode); struct fwnode_handle * fwnode_graph_get_remote_node(const struct fwnode_handle *fwnode, u32 port, u32 endpoint); #define fwnode_graph_for_each_endpoint(fwnode, child) \ for (child = NULL; \ (child = fwnode_graph_get_next_endpoint(fwnode, child)); ) int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode, struct fwnode_endpoint *endpoint); #endif /* _LINUX_PROPERTY_H_ */

Overall Contributors

PersonTokensPropCommitsCommitProp
Rafael J. Wysocki72755.71%410.81%
Mika Westerberg14911.42%616.22%
Sakari Ailus14110.80%1027.03%
Heikki Krogerus13210.11%25.41%
Andy Shevchenko413.14%410.81%
Dmitry Torokhov292.22%38.11%
Suravee Suthikulpanit292.22%38.11%
Jeremy Linton261.99%12.70%
Adam Thomson161.23%12.70%
Kieran Bingham110.84%12.70%
Andrew Morton30.23%12.70%
John Youn10.08%12.70%
Total1305100.00%37100.00%
Directory: include/linux
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