4c96b7dc0d
OF has some helper functions for parsing MAC and PHY settings. In cases where the platform is providing this information rather than the device itself, there needs to be similar functions for ACPI. These functions are slightly modified versions of the ones in of_net which can use information provided via DT or ACPI. Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
174 lines
5.3 KiB
C
174 lines
5.3 KiB
C
/*
|
|
* 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,
|
|
};
|
|
|
|
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);
|
|
|
|
bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname);
|
|
int fwnode_property_read_u8_array(struct fwnode_handle *fwnode,
|
|
const char *propname, u8 *val,
|
|
size_t nval);
|
|
int fwnode_property_read_u16_array(struct fwnode_handle *fwnode,
|
|
const char *propname, u16 *val,
|
|
size_t nval);
|
|
int fwnode_property_read_u32_array(struct fwnode_handle *fwnode,
|
|
const char *propname, u32 *val,
|
|
size_t nval);
|
|
int fwnode_property_read_u64_array(struct fwnode_handle *fwnode,
|
|
const char *propname, u64 *val,
|
|
size_t nval);
|
|
int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
|
|
const char *propname, const char **val,
|
|
size_t nval);
|
|
int fwnode_property_read_string(struct fwnode_handle *fwnode,
|
|
const char *propname, const char **val);
|
|
|
|
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))
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
static inline bool fwnode_property_read_bool(struct fwnode_handle *fwnode,
|
|
const char *propname)
|
|
{
|
|
return fwnode_property_present(fwnode, propname);
|
|
}
|
|
|
|
static inline int fwnode_property_read_u8(struct fwnode_handle *fwnode,
|
|
const char *propname, u8 *val)
|
|
{
|
|
return fwnode_property_read_u8_array(fwnode, propname, val, 1);
|
|
}
|
|
|
|
static inline int fwnode_property_read_u16(struct fwnode_handle *fwnode,
|
|
const char *propname, u16 *val)
|
|
{
|
|
return fwnode_property_read_u16_array(fwnode, propname, val, 1);
|
|
}
|
|
|
|
static inline int fwnode_property_read_u32(struct fwnode_handle *fwnode,
|
|
const char *propname, u32 *val)
|
|
{
|
|
return fwnode_property_read_u32_array(fwnode, propname, val, 1);
|
|
}
|
|
|
|
static inline int fwnode_property_read_u64(struct fwnode_handle *fwnode,
|
|
const char *propname, u64 *val)
|
|
{
|
|
return fwnode_property_read_u64_array(fwnode, propname, val, 1);
|
|
}
|
|
|
|
/**
|
|
* struct property_entry - "Built-in" device property representation.
|
|
* @name: Name of the property.
|
|
* @type: Type of the property.
|
|
* @nval: Number of items of type @type making up the value.
|
|
* @value: Value of the property (an array of @nval items of type @type).
|
|
*/
|
|
struct property_entry {
|
|
const char *name;
|
|
enum dev_prop_type type;
|
|
size_t nval;
|
|
union {
|
|
void *raw_data;
|
|
u8 *u8_data;
|
|
u16 *u16_data;
|
|
u32 *u32_data;
|
|
u64 *u64_data;
|
|
const char **str;
|
|
} value;
|
|
};
|
|
|
|
/**
|
|
* struct property_set - Collection of "built-in" device properties.
|
|
* @fwnode: Handle to be pointed to by the fwnode field of struct device.
|
|
* @properties: Array of properties terminated with a null entry.
|
|
*/
|
|
struct property_set {
|
|
struct fwnode_handle fwnode;
|
|
struct property_entry *properties;
|
|
};
|
|
|
|
void device_add_property_set(struct device *dev, struct property_set *pset);
|
|
|
|
bool device_dma_is_coherent(struct device *dev);
|
|
|
|
int device_get_phy_mode(struct device *dev);
|
|
|
|
void *device_get_mac_address(struct device *dev, char *addr, int alen);
|
|
|
|
#endif /* _LINUX_PROPERTY_H_ */
|