| /* 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_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 */ |