0x0 ˆÃ ƒmÇZÁÀ¿*/* 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 #include #include 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); int (*remove)(struct nubus_board *board); }; extern struct bus_type nubus_bus_type; /* Generic NuBus interface functions, modelled after the PCI interface */ #ifdef CONFIG_PROC_FS 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); #else static inline void nubus_proc_init(void) {} static inline struct proc_dir_entry *nubus_proc_add_board(struct nubus_board *board) { return NULL; } static inline struct 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 *d