diff options
Diffstat (limited to 'include/linux/isapnp.h')
| -rw-r--r-- | include/linux/isapnp.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/include/linux/isapnp.h b/include/linux/isapnp.h new file mode 100644 index 000000000000..26c64c286f42 --- /dev/null +++ b/include/linux/isapnp.h @@ -0,0 +1,142 @@ +/* + * ISA Plug & Play support + * Copyright (c) by Jaroslav Kysela <perex@suse.cz> + * + * + * 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. + * + */ + +#ifndef LINUX_ISAPNP_H +#define LINUX_ISAPNP_H + +#include <linux/config.h> +#include <linux/errno.h> +#include <linux/pnp.h> + +/* + * Configuration registers (TODO: change by specification) + */ + +#define ISAPNP_CFG_ACTIVATE 0x30 /* byte */ +#define ISAPNP_CFG_MEM 0x40 /* 4 * dword */ +#define ISAPNP_CFG_PORT 0x60 /* 8 * word */ +#define ISAPNP_CFG_IRQ 0x70 /* 2 * word */ +#define ISAPNP_CFG_DMA 0x74 /* 2 * byte */ + +/* + * + */ + +#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__ + +#define DEVICE_COUNT_COMPATIBLE 4 + +#define ISAPNP_ANY_ID 0xffff +#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) } + +/* export used IDs outside module */ +#define ISAPNP_CARD_TABLE(name) \ + MODULE_GENERIC_TABLE(isapnp_card, name) + +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 + +struct isapnp_device_id { + unsigned short card_vendor, card_device; + unsigned short vendor, function; + unsigned long driver_data; /* data private to the driver */ +}; + +#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 */ |