linux/include/linux/isapnp.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *  ISA Plug & Play support
 *  Copyright (c) by Jaroslav Kysela <[email protected]>
 */

#ifndef LINUX_ISAPNP_H
#define LINUX_ISAPNP_H

#include <linux/errno.h>
#include <linux/pnp.h>

/*
 *
 */

#define ISAPNP_VENDOR(a,b,c) …
#define ISAPNP_DEVICE(x) …
#define ISAPNP_FUNCTION(x) …

/*
 *
 */

#ifdef __KERNEL__
#include <linux/mod_devicetable.h>

#define DEVICE_COUNT_COMPATIBLE …

#define ISAPNP_CARD_DEVS …

#define ISAPNP_CARD_ID(_va, _vb, _vc, _device) …
#define ISAPNP_CARD_END …
#define ISAPNP_DEVICE_ID(_va, _vb, _vc, _function) …

struct isapnp_card_id { … };

#define ISAPNP_DEVICE_SINGLE(_cva, _cvb, _cvc, _cdevice, _dva, _dvb, _dvc, _dfunction) …
#define ISAPNP_DEVICE_SINGLE_END …

#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_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_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 */