/* *  ISA Plug & Play support *  Copyright (c) by Jaroslav Kysela <perex@suse.cz> * *  Modified by Ed Okerson <eokerson@quicknet.net> to work with the 2.2.x *  series of Linux kernels. 11/17/99 * *   This program is free software; you can redistribute it and/or modify *   it under the terms of the GNU General Public License as published by *   the Free Software Foundation; either version 2 of the License, or *   (at your option) any later version. * *   This program is distributed in the hope that it will be useful, *   but WITHOUT ANY WARRANTY; without even the implied warranty of *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the *   GNU General Public License for more details. *       *   You should have received a copy of the GNU General Public License *   along with this program; if not, write to the Free Software *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * *//* *  This file adds all the things that exist in Linux 2.3.28 that are used *  by the isapnp code, but do not exist in Linux 2.2.x.  To avoid *  trashing the 2.2.x pci_dev and pci_bus structs, I renamed them here to *  pnp_dev and pnp_bus for the use of this code.  Drivers that use these *  structs shoud use compiler conditionals to determine which name to use *  based on the Linux kernel version the module is being built for. * */#define DEVICE_COUNT_COMPATIBLE   4#define DEVICE_COUNT_IRQ        2#define DEVICE_COUNT_DMA        2#define DEVICE_COUNT_RESOURCE   12struct resource {	const char *name;	unsigned long start, end;	unsigned long flags;	struct resource *parent, *sibling, *child;};/* * IO resources have these defined flags. */#define IORESOURCE_BITS		0x000000ff	/* Bus-specific bits */#define IORESOURCE_IO		0x00000100	/* Resource type */#define IORESOURCE_MEM		0x00000200#define IORESOURCE_IRQ		0x00000400#define IORESOURCE_DMA		0x00000800#define IORESOURCE_PREFETCH	0x00001000	/* No side effects */#define IORESOURCE_READONLY	0x00002000#define IORESOURCE_CACHEABLE	0x00004000#define IORESOURCE_RANGELENGTH	0x00008000#define IORESOURCE_SHADOWABLE	0x00010000#define IORESOURCE_UNSET	0x20000000#define IORESOURCE_AUTO		0x40000000#define IORESOURCE_BUSY		0x80000000	/* Driver has marked this resource busy *//* ISA PnP IRQ specific bits (IORESOURCE_BITS) */#define IORESOURCE_IRQ_HIGHEDGE		(1<<0)#define IORESOURCE_IRQ_LOWEDGE		(1<<1)#define IORESOURCE_IRQ_HIGHLEVEL	(1<<2)#define IORESOURCE_IRQ_LOWLEVEL		(1<<3)/* ISA PnP DMA specific bits (IORESOURCE_BITS) */#define IORESOURCE_DMA_TYPE_MASK	(3<<0)#define IORESOURCE_DMA_8BIT		(0<<0)#define IORESOURCE_DMA_8AND16BIT	(1<<0)#define IORESOURCE_DMA_16BIT		(2<<0)#define IORESOURCE_DMA_MASTER		(1<<2)#define IORESOURCE_DMA_BYTE		(1<<3)#define IORESOURCE_DMA_WORD		(1<<4)#define IORESOURCE_DMA_SPEED_MASK	(3<<6)#define IORESOURCE_DMA_COMPATIBLE	(0<<6)#define IORESOURCE_DMA_TYPEA		(1<<6)#define IORESOURCE_DMA_TYPEB		(2<<6)#define IORESOURCE_DMA_TYPEF		(3<<6)/* ISA PnP memory I/O specific bits (IORESOURCE_BITS) */#define IORESOURCE_MEM_WRITEABLE	(1<<0)	/* dup: IORESOURCE_READONLY */#define IORESOURCE_MEM_CACHEABLE	(1<<1)	/* dup: IORESOURCE_CACHEABLE */#define IORESOURCE_MEM_RANGELENGTH	(1<<2)	/* dup: IORESOURCE_RANGELENGTH */#define IORESOURCE_MEM_TYPE_MASK	(3<<3)#define IORESOURCE_MEM_8BIT		(0<<3)#define IORESOURCE_MEM_16BIT		(1<<3)#define IORESOURCE_MEM_8AND16BIT	(2<<3)#define IORESOURCE_MEM_SHADOWABLE	(1<<5)	/* dup: IORESOURCE_SHADOWABLE */#define IORESOURCE_MEM_EXPANSIONROM	(1<<6)/* PC/ISA/whatever - the normal PC address spaces: IO and memory */extern struct resource ioport_resource;extern struct resource iomem_resource;extern int get_resource_list(struct resource *, char *buf, int size);extern int request_resource(struct resource *root, struct resource *new);extern int release_resource(struct resource *new);extern int allocate_resource(struct resource *root, struct resource *new,			     unsigned long size,			     unsigned long min, unsigned long max,			     unsigned long align);/* Convenience shorthand with allocation *///#define request_region(start,n,name)	__request_region(&ioport_resource, (start), (n), (name))#define request_mem_region(start,n,name) __request_region(&iomem_resource, (start), (n), (name))extern struct resource * __request_region(struct resource *, unsigned long start, unsigned long n, const char *name);/* * This is actually the new pci_dev structure, but we can't use that name * without stomping on the old one the kernel still uses. */struct pnp_dev {  int active;                     /* device is active */  int ro;                         /* Read/Only */  struct pnp_bus  *bus;           /* bus this device is on */  struct pnp_dev  *sibling;       /* next device on this bus */  struct pnp_dev  *next;          /* chain of all devices */     void            *sysdata;       /* hook for sys-specific extension */     struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */  unsigned int    devfn;          /* encoded device & function index */  unsigned short  vendor;  unsigned short  device;  unsigned short  subsystem_vendor;  unsigned short  subsystem_device;  unsigned int    class;          /* 3 bytes: (base,sub,prog-if) */  u8    hdr_type;       /* PCI header type (`multi' flag masked out) */  u8    rom_base_reg;   /* Which config register controls the ROM */             unsigned short  regs;          /* device is compatible with these IDs */  unsigned short vendor_compatible[DEVICE_COUNT_COMPATIBLE];  unsigned short device_compatible[DEVICE_COUNT_COMPATIBLE];         /*  * Instead of touching interrupt line and base address registers  * directly, use the values stored here. They might be different!  */  unsigned int    irq;     struct resource resource[DEVICE_COUNT_RESOURCE];  /* I/O and memory                                                   regions + expansion ROMs */  struct resource dma_resource[DEVICE_COUNT_DMA];  struct resource irq_resource[DEVICE_COUNT_IRQ];          char            name[48];       /* Device name */  char            slot_name[8];   /* Slot name */          int (*prepare)(struct pnp_dev *dev);   int (*activate)(struct pnp_dev *dev);    int (*deactivate)(struct pnp_dev *dev);};      /* * This is actually the new pci_bus structure, but we can't use that name * without stomping on the old one the kernel still uses. */struct pnp_bus {  struct pnp_bus  *parent;        /* parent bus this bridge is on */  struct pnp_bus  *children;      /* chain of P2P bridges on this bus */  struct pnp_bus  *next;          /* chain of all PCI buses */  struct pci_ops  *ops;           /* configuration access functions */  struct pnp_dev  *self;          /* bridge device as seen by parent */  struct pnp_dev  *devices;       /* devices behind this bridge */  struct resource *resource[4];   /* address space routed to this bus */     void            *sysdata;       /* hook for sys-specific extension */  struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */          unsigned char   number;         /* bus number */  unsigned char   primary;        /* number of primary bridge */  unsigned char   secondary;      /* number of secondary bridge */  unsigned char   subordinate;    /* max number of subordinate buses */  char            name[48];  unsigned short  vendor;  unsigned short  device;  unsigned int    serial;         /* serial number */  unsigned char   pnpver;         /* Plug & Play version */  unsigned char   productver;     /* product version */  unsigned char   checksum;       /* if zero - checksum passed */   unsigned char   pad1;};        extern struct pnp_bus   *pnp_root;      /* root bus */extern struct pnp_dev   *pnp_devices;   /* list of all devices */