c3789cd49b
Change device parameters so that the memory management is in generic code. This also removes the need of storing statically initialized parameters as they are stored in a struct list_head for each device. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
#ifndef PARAM_H
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#define PARAM_H
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#include <linux/types.h>
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#include <linux/list.h>
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#define PARAM_FLAG_RO (1 << 0)
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struct device_d;
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typedef unsigned long IPaddr_t;
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struct param_d {
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char* (*get)(struct device_d *, struct param_d *param);
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int (*set)(struct device_d *, struct param_d *param, const char *val);
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unsigned int flags;
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char *name;
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struct param_d *next;
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char *value;
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struct list_head list;
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};
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const char *dev_get_param(struct device_d *dev, const char *name);
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int dev_set_param(struct device_d *dev, const char *name, const char *val);
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struct param_d *get_param_by_name(struct device_d *dev, const char *name);
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int dev_add_param(struct device_d *dev, char *name,
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int (*set)(struct device_d *dev, struct param_d *p, const char *val),
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char *(*get)(struct device_d *, struct param_d *p),
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unsigned long flags);
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int dev_add_param_fixed(struct device_d *dev, char *name, char *value);
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void dev_remove_parameters(struct device_d *dev);
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int dev_param_set_generic(struct device_d *dev, struct param_d *p,
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const char *val);
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/* Convenience functions to handle a parameter as an ip address */
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int dev_set_param_ip(struct device_d *dev, char *name, IPaddr_t ip);
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IPaddr_t dev_get_param_ip(struct device_d *dev, char *name);
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int global_add_parameter(struct param_d *param);
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#endif /* PARAM_H */
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