linux-stable/include/linux/isapnp.h
Thomas Gleixner 74ba9207e1 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 441 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24 17:36:45 +02:00

106 lines
3.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* ISA Plug & Play support
* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
*/
#ifndef LINUX_ISAPNP_H
#define LINUX_ISAPNP_H
#include <linux/errno.h>
#include <linux/pnp.h>
/*
*
*/
#define ISAPNP_VENDOR(a,b,c) (((((a)-'A'+1)&0x3f)<<2)|\
((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|\
((((c)-'A'+1)&0x1f)<<8))
#define ISAPNP_DEVICE(x) ((((x)&0xf000)>>8)|\
(((x)&0x0f00)>>8)|\
(((x)&0x00f0)<<8)|\
(((x)&0x000f)<<8))
#define ISAPNP_FUNCTION(x) ISAPNP_DEVICE(x)
/*
*
*/
#ifdef __KERNEL__
#include <linux/mod_devicetable.h>
#define DEVICE_COUNT_COMPATIBLE 4
#define ISAPNP_CARD_DEVS 8
#define ISAPNP_CARD_ID(_va, _vb, _vc, _device) \
.card_vendor = ISAPNP_VENDOR(_va, _vb, _vc), .card_device = ISAPNP_DEVICE(_device)
#define ISAPNP_CARD_END \
.card_vendor = 0, .card_device = 0
#define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function) \
{ .vendor = ISAPNP_VENDOR(_va, _vb, _vc), .function = ISAPNP_FUNCTION(_function) }
struct isapnp_card_id {
unsigned long driver_data; /* data private to the driver */
unsigned short card_vendor, card_device;
struct {
unsigned short vendor, function;
} devs[ISAPNP_CARD_DEVS]; /* logical devices */
};
#define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction) \
.card_vendor = ISAPNP_VENDOR(_cva, _cvb, _cvc), .card_device = ISAPNP_DEVICE(_cdevice), \
.vendor = ISAPNP_VENDOR(_dva, _dvb, _dvc), .function = ISAPNP_FUNCTION(_dfunction)
#define ISAPNP_DEVICE_SINGLE_END \
.card_vendor = 0, .card_device = 0
#if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
#define __ISAPNP__
/* lowlevel configuration */
int isapnp_present(void);
int isapnp_cfg_begin(int csn, int device);
int isapnp_cfg_end(void);
unsigned char isapnp_read_byte(unsigned char idx);
void isapnp_write_byte(unsigned char idx, unsigned char val);
#ifdef CONFIG_PROC_FS
int isapnp_proc_init(void);
int isapnp_proc_done(void);
#else
static inline int isapnp_proc_init(void) { return 0; }
static inline int isapnp_proc_done(void) { return 0; }
#endif
/* compat */
struct pnp_card *pnp_find_card(unsigned short vendor,
unsigned short device,
struct pnp_card *from);
struct pnp_dev *pnp_find_dev(struct pnp_card *card,
unsigned short vendor,
unsigned short function,
struct pnp_dev *from);
#else /* !CONFIG_ISAPNP */
/* lowlevel configuration */
static inline int isapnp_present(void) { return 0; }
static inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; }
static inline int isapnp_cfg_end(void) { return -ENODEV; }
static inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; }
static inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; }
static inline struct pnp_card *pnp_find_card(unsigned short vendor,
unsigned short device,
struct pnp_card *from) { return NULL; }
static inline struct pnp_dev *pnp_find_dev(struct pnp_card *card,
unsigned short vendor,
unsigned short function,
struct pnp_dev *from) { return NULL; }
#endif /* CONFIG_ISAPNP */
#endif /* __KERNEL__ */
#endif /* LINUX_ISAPNP_H */