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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187/* SPDX-License-Identifier: GPL-2.0 *//* nubus.h: various definitions and prototypes for NuBus drivers to use.
Originally written by Alan Cox.
Hacked to death by C. Scott Ananian and David Huggins-Daines.*/
#ifndef LINUX_NUBUS_H#define LINUX_NUBUS_H
#include <linux/device.h>#include <asm/nubus.h>#include <uapi/linux/nubus.h>
struct proc_dir_entry;struct seq_file;
struct nubus_dir { unsigned char *base; unsigned char *ptr; int done; int mask; struct proc_dir_entry *procdir;};
struct nubus_dirent { unsigned char *base; unsigned char type; __u32 data; /* Actually 24 bits used */ int mask;};
struct nubus_board { struct device dev;
/* Only 9-E actually exist, though 0-8 are also theoretically possible, and 0 is a special case which represents the motherboard and onboard peripherals (Ethernet, video) */ int slot; /* For slot 0, this is bogus. */ char name[64];
/* Format block */ unsigned char *fblock; /* Root directory (does *not* always equal fblock + doffset!) */ unsigned char *directory;
unsigned long slot_addr; /* Offset to root directory (sometimes) */ unsigned long doffset; /* Length over which to compute the crc */ unsigned long rom_length; /* Completely useless most of the time */ unsigned long crc; unsigned char rev; unsigned char format; unsigned char lanes;
/* Directory entry in /proc/bus/nubus */ struct proc_dir_entry *procdir;};
struct nubus_rsrc { struct list_head list;
/* The functional resource ID */ unsigned char resid; /* These are mostly here for convenience; we could always read them from the ROMs if we wanted to */ unsigned short category; unsigned short type; unsigned short dr_sw; unsigned short dr_hw;
/* Functional directory */ unsigned char *directory; /* Much of our info comes from here */ struct nubus_board *board;};
/* This is all NuBus functional resources (used to find devices later on) */extern struct list_head nubus_func_rsrcs;
struct nubus_driver { struct device_driver driver; int (*probe)(struct nubus_board *board); void (*remove)(struct nubus_board *board);};
/* Generic NuBus interface functions, modelled after the PCI interface */#ifdef CONFIG_PROC_FSextern bool nubus_populate_procfs;void nubus_proc_init(void);struct proc_dir_entry *nubus_proc_add_board(struct nubus_board *board);struct proc_dir_entry *nubus_proc_add_rsrc_dir(struct proc_dir_entry *procdir, const struct nubus_dirent *ent, struct nubus_board *board);void nubus_proc_add_rsrc_mem(struct proc_dir_entry *procdir, const struct nubus_dirent *ent, unsigned int size);void nubus_proc_add_rsrc(struct proc_dir_entry *procdir, const struct nubus_dirent *ent);#elsestatic inline void nubus_proc_init(void) {}static inlinestruct proc_dir_entry *nubus_proc_add_board(struct nubus_board *board){ return NULL; }static inlinestruct proc_dir_entry *nubus_proc_add_rsrc_dir(struct proc_dir_entry *procdir, const struct nubus_dirent *ent, struct nubus_board *board){ return NULL; }static inline void nubus_proc_add_rsrc_mem(struct proc_dir_entry *procdir, const struct nubus_dirent *ent, unsigned int size) {}static inline void nubus_proc_add_rsrc(struct proc_dir_entry *procdir, const struct nubus_dirent *ent) {}#endif
struct nubus_rsrc *nubus_first_rsrc_or_null(void);struct nubus_rsrc *nubus_next_rsrc_or_null(struct nubus_rsrc *from);
#define for_each_func_rsrc(f) \ for (f = nubus_first_rsrc_or_null(); f; f = nubus_next_rsrc_or_null(f))
#define for_each_board_func_rsrc(b, f) \ for_each_func_rsrc(f) if (f->board != b) {} else
/* These are somewhat more NuBus-specific. They all return 0 for success and -1 for failure, as you'd expect. */
/* The root directory which contains the board and functional directories */int nubus_get_root_dir(const struct nubus_board *board, struct nubus_dir *dir);/* The board directory */int nubus_get_board_dir(const struct nubus_board *board, struct nubus_dir *dir);/* The functional directory */int nubus_get_func_dir(const struct nubus_rsrc *fres, struct nubus_dir *dir);
/* These work on any directory gotten via the above */int nubus_readdir(struct nubus_dir *dir, struct nubus_dirent *ent);int nubus_find_rsrc(struct nubus_dir *dir, unsigned char rsrc_type, struct nubus_dirent *ent);int nubus_rewinddir(struct nubus_dir *dir);
/* Things to do with directory entries */int nubus_get_subdir(const struct nubus_dirent *ent, struct nubus_dir *dir);void nubus_get_rsrc_mem(void *dest, const struct nubus_dirent *dirent, unsigned int len);unsigned int nubus_get_rsrc_str(char *dest, const struct nubus_dirent *dirent, unsigned int len);void nubus_seq_write_rsrc_mem(struct seq_file *m, const struct nubus_dirent *dirent, unsigned int len);unsigned char *nubus_dirptr(const struct nubus_dirent *nd);
/* Declarations relating to driver model objects */int nubus_device_register(struct device *parent, struct nubus_board *board);int nubus_driver_register(struct nubus_driver *ndrv);void nubus_driver_unregister(struct nubus_driver *ndrv);int nubus_proc_show(struct seq_file *m, void *data);
static inline void nubus_set_drvdata(struct nubus_board *board, void *data){ dev_set_drvdata(&board->dev, data);}
static inline void *nubus_get_drvdata(struct nubus_board *board){ return dev_get_drvdata(&board->dev);}
/* Returns a pointer to the "standard" slot space. */static inline void *nubus_slot_addr(int slot){ return (void *)(0xF0000000 | (slot << 24));}
#endif /* LINUX_NUBUS_H */