cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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isapnp.h (2944B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 *  ISA Plug & Play support
      4 *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
      5 */
      6
      7#ifndef LINUX_ISAPNP_H
      8#define LINUX_ISAPNP_H
      9
     10#include <linux/errno.h>
     11#include <linux/pnp.h>
     12
     13/*
     14 *
     15 */
     16
     17#define ISAPNP_VENDOR(a,b,c)	(((((a)-'A'+1)&0x3f)<<2)|\
     18				((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|\
     19				((((c)-'A'+1)&0x1f)<<8))
     20#define ISAPNP_DEVICE(x)	((((x)&0xf000)>>8)|\
     21				 (((x)&0x0f00)>>8)|\
     22				 (((x)&0x00f0)<<8)|\
     23				 (((x)&0x000f)<<8))
     24#define ISAPNP_FUNCTION(x)	ISAPNP_DEVICE(x)
     25
     26/*
     27 *
     28 */
     29
     30#ifdef __KERNEL__
     31#include <linux/mod_devicetable.h>
     32
     33#define DEVICE_COUNT_COMPATIBLE 4
     34
     35#define ISAPNP_CARD_DEVS	8
     36
     37#define ISAPNP_CARD_ID(_va, _vb, _vc, _device) \
     38		.card_vendor = ISAPNP_VENDOR(_va, _vb, _vc), .card_device = ISAPNP_DEVICE(_device)
     39#define ISAPNP_CARD_END \
     40		.card_vendor = 0, .card_device = 0
     41#define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function) \
     42		{ .vendor = ISAPNP_VENDOR(_va, _vb, _vc), .function = ISAPNP_FUNCTION(_function) }
     43
     44struct isapnp_card_id {
     45	unsigned long driver_data;	/* data private to the driver */
     46	unsigned short card_vendor, card_device;
     47	struct {
     48		unsigned short vendor, function;
     49	} devs[ISAPNP_CARD_DEVS];	/* logical devices */
     50};
     51
     52#define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction) \
     53		.card_vendor = ISAPNP_VENDOR(_cva, _cvb, _cvc), .card_device =  ISAPNP_DEVICE(_cdevice), \
     54		.vendor = ISAPNP_VENDOR(_dva, _dvb, _dvc), .function = ISAPNP_FUNCTION(_dfunction)
     55#define ISAPNP_DEVICE_SINGLE_END \
     56		.card_vendor = 0, .card_device = 0
     57
     58#if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
     59
     60#define __ISAPNP__
     61
     62/* lowlevel configuration */
     63int isapnp_present(void);
     64int isapnp_cfg_begin(int csn, int device);
     65int isapnp_cfg_end(void);
     66unsigned char isapnp_read_byte(unsigned char idx);
     67void isapnp_write_byte(unsigned char idx, unsigned char val);
     68
     69#ifdef CONFIG_PROC_FS
     70int isapnp_proc_init(void);
     71int isapnp_proc_done(void);
     72#else
     73static inline int isapnp_proc_init(void) { return 0; }
     74static inline int isapnp_proc_done(void) { return 0; }
     75#endif
     76
     77/* compat */
     78struct pnp_dev *pnp_find_dev(struct pnp_card *card,
     79			     unsigned short vendor,
     80			     unsigned short function,
     81			     struct pnp_dev *from);
     82
     83#else /* !CONFIG_ISAPNP */
     84
     85/* lowlevel configuration */
     86static inline int isapnp_present(void) { return 0; }
     87static inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; }
     88static inline int isapnp_cfg_end(void) { return -ENODEV; }
     89static inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; }
     90static inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; }
     91
     92static inline struct pnp_dev *pnp_find_dev(struct pnp_card *card,
     93					   unsigned short vendor,
     94					   unsigned short function,
     95					   struct pnp_dev *from) { return NULL; }
     96
     97#endif /* CONFIG_ISAPNP */
     98
     99#endif /* __KERNEL__ */
    100#endif /* LINUX_ISAPNP_H */