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/*
* 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>
/*
* 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__
#include <linux/pci.h>
#define ISAPNP_PORT_FLAG_16BITADDR (1<<0)
#define ISAPNP_PORT_FLAG_FIXED (1<<1)
struct isapnp_port {
unsigned short min; /* min base number */
unsigned short max; /* max base number */
unsigned char align; /* align boundary */
unsigned char size; /* size of range */
unsigned char flags; /* port flags */
unsigned char pad; /* pad */
struct isapnp_resources *res; /* parent */
struct isapnp_port *next; /* next port */
};
struct isapnp_irq {
unsigned short map; /* bitmaks for IRQ lines */
unsigned char flags; /* IRQ flags */
unsigned char pad; /* pad */
struct isapnp_resources *res; /* parent */
struct isapnp_irq *next; /* next IRQ */
};
struct isapnp_dma {
unsigned char map; /* bitmask for DMA channels */
unsigned char flags; /* DMA flags */
struct isapnp_resources *res; /* parent */
struct isapnp_dma *next; /* next port */
};
struct isapnp_mem {
unsigned int min; /* min base number */
unsigned int max; /* max base number */
unsigned int align; /* align boundary */
unsigned int size; /* size of range */
unsigned char flags; /* memory flags */
unsigned char pad; /* pad */
struct isapnp_resources *res; /* parent */
struct isapnp_mem *next; /* next memory resource */
};
struct isapnp_mem32 {
/* TODO */
unsigned char data[17];
struct isapnp_resources *res; /* parent */
struct isapnp_mem32 *next; /* next 32-bit memory resource */
};
#define ISAPNP_RES_PRIORITY_PREFERRED 0
#define ISAPNP_RES_PRIORITY_ACCEPTABLE 1
#define ISAPNP_RES_PRIORITY_FUNCTIONAL 2
#define ISAPNP_RES_PRIORITY_INVALID 65535
struct isapnp_resources {
unsigned short priority; /* priority */
unsigned short dependent; /* dependent resources */
struct isapnp_port *port; /* first port */
struct isapnp_irq *irq; /* first IRQ */
struct isapnp_dma *dma; /* first DMA */
struct isapnp_mem *mem; /* first memory resource */
struct isapnp_mem32 *mem32; /* first 32-bit memory */
struct pci_dev *dev; /* parent */
struct isapnp_resources *alt; /* alternative resource (aka dependent resources) */
struct isapnp_resources *next; /* next resource */
};
#if defined(CONFIG_ISAPNP) || (defined(CONFIG_ISAPNP_MODULE) && defined(MODULE))
/* 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);
unsigned short isapnp_read_word(unsigned char idx);
unsigned int isapnp_read_dword(unsigned char idx);
void isapnp_write_byte(unsigned char idx, unsigned char val);
void isapnp_write_word(unsigned char idx, unsigned short val);
void isapnp_write_dword(unsigned char idx, unsigned int val);
void isapnp_wake(unsigned char csn);
void isapnp_device(unsigned char device);
void isapnp_activate(unsigned char device);
void isapnp_deactivate(unsigned char device);
/* manager */
struct pci_bus *isapnp_find_card(unsigned short vendor,
unsigned short device,
struct pci_bus *from);
struct pci_dev *isapnp_find_dev(struct pci_bus *card,
unsigned short vendor,
unsigned short function,
struct pci_dev *from);
/* misc */
void isapnp_resource_change(struct resource *resource,
unsigned long start,
unsigned long size);
/* init/main.c */
int isapnp_init(void);
#else /* !CONFIG_ISAPNP */
/* lowlevel configuration */
extern inline int isapnp_present(void) { return 0; }
extern inline int isapnp_cfg_begin(int csn, int device) { return -ENODEV; }
extern inline int isapnp_cfg_end(void) { return -ENODEV; }
extern inline unsigned char isapnp_read_byte(unsigned char idx) { return 0xff; }
extern inline unsigned short isapnp_read_word(unsigned char idx) { return 0xffff; }
extern inline unsigned int isapnp_read_dword(unsigned char idx) { return 0xffffffff; }
extern inline void isapnp_write_byte(unsigned char idx, unsigned char val) { ; }
extern inline void isapnp_write_word(unsigned char idx, unsigned short val) { ; }
extern inline void isapnp_write_dword(unsigned char idx, unsigned int val) { ; }
extern void isapnp_wake(unsigned char csn) { ; }
extern void isapnp_device(unsigned char device) { ; }
extern void isapnp_activate(unsigned char device) { ; }
extern void isapnp_deactivate(unsigned char device) { ; }
/* manager */
extern struct pci_bus *isapnp_find_card(unsigned short vendor,
unsigned short device,
struct pci_bus *from) { return NULL; }
extern struct pci_dev *isapnp_find_dev(struct pci_bus *card,
unsigned short vendor,
unsigned short function,
struct pci_dev *from) { return NULL; }
extern void isapnp_resource_change(struct resource *resource,
unsigned long start,
unsigned long size) { ; }
#endif /* CONFIG_ISAPNP */
#endif /* __KERNEL__ */
#endif /* LINUX_ISAPNP_H */
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