119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
#ifndef DRIVER_H
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#define DRIVER_H
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#include <net.h>
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#define MAX_DRIVER_NAME 16
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#define MAP_READ 1
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#define MAP_WRITE 2
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#define PARAM_TYPE_STRING 1
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#define PARAM_TYPE_ULONG 2
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#define PARAM_TYPE_IPADDR 3
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#define PARAM_FLAG_RO (1 << 0)
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typedef union {
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char *val_str;
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ulong val_ulong;
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IPaddr_t val_ip;
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} value_t;
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struct param_d {
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struct param_d* (*get)(struct device_d *, struct param_d *param);
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int (*set)(struct device_d *, struct param_d *param, value_t val);
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ulong type;
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ulong flags;
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char *name;
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ulong cookie;
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struct param_d *next;
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value_t value;
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};
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#define DEVICE_TYPE_UNKNOWN 0
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#define DEVICE_TYPE_ETHER 1
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#define DEVICE_TYPE_STDIO 2
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#define DEVICE_TYPE_DRAM 3
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#define MAX_DEVICE_TYPE 3
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struct device_d {
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char name[MAX_DRIVER_NAME];
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char id[MAX_DRIVER_NAME];
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unsigned long size;
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/* For devices which are directly mapped into memory, i.e. NOR Flash or
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* SDRAM.
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*/
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unsigned long map_base;
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void *platform_data;
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void *priv;
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/* The driver for this device */
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struct driver_d *driver;
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struct device_d *next;
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unsigned long type;
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struct param_d *param;
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};
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struct driver_d {
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char name[MAX_DRIVER_NAME];
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struct driver_d *next;
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int (*probe) (struct device_d *);
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ssize_t (*read) (struct device_d*, void* buf, size_t count, ulong offset, ulong flags);
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ssize_t (*write) (struct device_d*, void* buf, size_t count, ulong offset, ulong flags);
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ssize_t (*erase) (struct device_d*, size_t count, unsigned long offset);
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void (*info) (struct device_d *);
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void (*shortinfo) (struct device_d *);
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int (*get) (struct device_d*, struct param_d *);
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int (*set) (struct device_d*, struct param_d *, value_t val);
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unsigned long type;
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void *type_data;
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};
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#define RW_SIZE(x) (x)
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#define RW_SIZE_MASK 0x7
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int register_driver(struct driver_d *);
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int register_device(struct device_d *);
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void unregister_device(struct device_d *);
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struct device_d *device_from_spec_str(const char *str, char **endp);
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struct device_d *get_device_by_name(char *name);
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struct device_d *get_device_by_type(ulong type, struct device_d *last);
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ssize_t read(struct device_d *dev, void *buf, size_t count, ulong offset, ulong flags);
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ssize_t write(struct device_d *dev, void *buf, size_t count, ulong offset, ulong flags);
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ssize_t erase(struct device_d *dev, size_t count, unsigned long offset);
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struct param_d* dev_get_param(struct device_d *dev, char *name);
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int dev_set_param(struct device_d *dev, char *name, value_t val);
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struct param_d *get_param_by_name(struct device_d *dev, char *name);
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void print_param(struct param_d *param);
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IPaddr_t dev_get_param_ip(struct device_d *dev, char *name);
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int dev_set_param_ip(struct device_d *dev, char *name, IPaddr_t ip);
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int dev_add_parameter(struct device_d *dev, struct param_d *par);
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ssize_t mem_read(struct device_d *dev, void *buf, size_t count, ulong offset, ulong flags);
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ssize_t mem_write(struct device_d *dev, void *buf, size_t count, ulong offset, ulong flags);
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int register_device_type_handler(int(*handle)(struct device_d *), ulong device_type);
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//void unregister_device_type_handler(struct device_d *);
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int dummy_probe(struct device_d *);
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int global_add_parameter(struct param_d *param);
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#endif /* DRIVER_H */
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