74ba9207e1
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>
107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* ISA Plug & Play support
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* Copyright (c) by Jaroslav Kysela <perex@suse.cz>
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*/
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#ifndef LINUX_ISAPNP_H
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#define LINUX_ISAPNP_H
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#include <linux/errno.h>
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#include <linux/pnp.h>
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/*
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*
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*/
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#define ISAPNP_VENDOR(a,b,c) (((((a)-'A'+1)&0x3f)<<2)|\
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((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|\
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((((c)-'A'+1)&0x1f)<<8))
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#define ISAPNP_DEVICE(x) ((((x)&0xf000)>>8)|\
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(((x)&0x0f00)>>8)|\
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(((x)&0x00f0)<<8)|\
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(((x)&0x000f)<<8))
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#define ISAPNP_FUNCTION(x) ISAPNP_DEVICE(x)
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/*
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*
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*/
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#ifdef __KERNEL__
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#include <linux/mod_devicetable.h>
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#define DEVICE_COUNT_COMPATIBLE 4
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#define ISAPNP_CARD_DEVS 8
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#define ISAPNP_CARD_ID(_va, _vb, _vc, _device) \
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.card_vendor = ISAPNP_VENDOR(_va, _vb, _vc), .card_device = ISAPNP_DEVICE(_device)
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#define ISAPNP_CARD_END \
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.card_vendor = 0, .card_device = 0
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#define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function) \
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{ .vendor = ISAPNP_VENDOR(_va, _vb, _vc), .function = ISAPNP_FUNCTION(_function) }
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struct isapnp_card_id {
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unsigned long driver_data; /* data private to the driver */
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unsigned short card_vendor, card_device;
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struct {
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unsigned short vendor, function;
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} devs[ISAPNP_CARD_DEVS]; /* logical devices */
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};
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#define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction) \
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.card_vendor = ISAPNP_VENDOR(_cva, _cvb, _cvc), .card_device = ISAPNP_DEVICE(_cdevice), \
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.vendor = ISAPNP_VENDOR(_dva, _dvb, _dvc), .function = ISAPNP_FUNCTION(_dfunction)
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#define ISAPNP_DEVICE_SINGLE_END \
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.card_vendor = 0, .card_device = 0
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#if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
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#define __ISAPNP__
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/* lowlevel configuration */
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int isapnp_present(void);
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int isapnp_cfg_begin(int csn, int device);
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int isapnp_cfg_end(void);
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unsigned char isapnp_read_byte(unsigned char idx);
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void isapnp_write_byte(unsigned char idx, unsigned char val);
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#ifdef CONFIG_PROC_FS
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int isapnp_proc_init(void);
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int isapnp_proc_done(void);
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#else
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static inline int isapnp_proc_init(void) { return 0; }
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static inline int isapnp_proc_done(void) { return 0; }
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#endif
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/* compat */
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struct pnp_card *pnp_find_card(unsigned short vendor,
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unsigned short device,
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struct pnp_card *from);
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struct pnp_dev *pnp_find_dev(struct pnp_card *card,
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unsigned short vendor,
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unsigned short function,
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struct pnp_dev *from);
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#else /* !CONFIG_ISAPNP */
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/* lowlevel configuration */
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static inline int isapnp_present(void) { return 0; }
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static inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; }
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static inline int isapnp_cfg_end(void) { return -ENODEV; }
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static inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; }
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static inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; }
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static inline struct pnp_card *pnp_find_card(unsigned short vendor,
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unsigned short device,
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struct pnp_card *from) { return NULL; }
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static inline struct pnp_dev *pnp_find_dev(struct pnp_card *card,
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unsigned short vendor,
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unsigned short function,
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struct pnp_dev *from) { return NULL; }
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#endif /* CONFIG_ISAPNP */
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#endif /* __KERNEL__ */
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#endif /* LINUX_ISAPNP_H */
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