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#ifndef DRIVER_H
#define DRIVER_H
#define MAX_DRIVER_NAME 16
#define MAP_READ 1
#define MAP_WRITE 2
#define DEVICE_TYPE_UNKNOWN 0
#define DEVICE_TYPE_ETHER 1
#define DEVICE_TYPE_STDIO 2
#define DEVICE_TYPE_DRAM 3
#define DEVICE_TYPE_FS 4
#define MAX_DEVICE_TYPE 4
#include <param.h>
struct device_d {
char name[MAX_DRIVER_NAME];
char id[MAX_DRIVER_NAME];
unsigned long size;
/* For devices which are directly mapped into memory, i.e. NOR Flash or
* SDRAM.
*/
unsigned long map_base;
void *platform_data; /* board specific information about this device */
void *priv; /* data private to the driver */
void *type_data; /* In case this device is a specific device, this pointer
* points to the type specific device, i.e. eth_device
*/
/* The driver for this device */
struct driver_d *driver;
struct device_d *next;
unsigned long type;
struct param_d *param;
};
struct driver_d {
char name[MAX_DRIVER_NAME];
struct driver_d *next;
int (*probe) (struct device_d *);
int (*remove)(struct device_d *);
ssize_t (*read) (struct device_d*, void* buf, size_t count, ulong offset, ulong flags);
ssize_t (*write) (struct device_d*, const void* buf, size_t count, ulong offset, ulong flags);
ssize_t (*erase) (struct device_d*, size_t count, unsigned long offset);
void (*info) (struct device_d *);
void (*shortinfo) (struct device_d *);
int (*get) (struct device_d*, struct param_d *);
int (*set) (struct device_d*, struct param_d *, value_t val);
unsigned long type;
void *type_data; /* In case this driver is of a specific type, i.e. a filesystem
* driver, this pointer points to the corresponding data struct
*/
};
#define RW_SIZE(x) (x)
#define RW_SIZE_MASK 0x7
int register_driver(struct driver_d *);
int register_device(struct device_d *);
void unregister_device(struct device_d *);
struct device_d *device_from_spec_str(const char *str, char **endp);
struct device_d *get_device_by_name(char *name);
struct device_d *get_device_by_type(ulong type, struct device_d *last);
struct device_d *get_device_by_id(const char *id);
struct driver_d *get_driver_by_name(char *name);
ssize_t dev_read(struct device_d *dev, void *buf, size_t count, ulong offset, ulong flags);
ssize_t dev_write(struct device_d *dev, void *buf, size_t count, ulong offset, ulong flags);
ssize_t dev_erase(struct device_d *dev, size_t count, unsigned long offset);
ssize_t mem_read(struct device_d *dev, void *buf, size_t count, ulong offset, ulong flags);
ssize_t mem_write(struct device_d *dev, void *buf, size_t count, ulong offset, ulong flags);
int dummy_probe(struct device_d *);
#endif /* DRIVER_H */
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