NetBSD/sys/arch/i386/include/mca_machdep.h

103 lines
3.8 KiB
C

/* $NetBSD: mca_machdep.h,v 1.4 2000/07/09 10:35:11 jdolecek Exp $ */
/*
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* Copyright (c) 1999 Scott D. Telford. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _I386_MCA_MACHDEP_H_
#define _I386_MCA_MACHDEP_H_
/*
* i386-specific definitions for MCA autoconfiguration.
*/
extern struct i386_bus_dma_tag mca_bus_dma_tag;
/* set to 1 if MCA bus is detected */
extern int MCA_system;
int mca_nmi(void);
/*
* Types provided to machine-independent MCA code.
*/
struct i386_mca_chipset {
void * /*struct mca_dma_state*/ ic_dmastate;
};
typedef struct i386_mca_chipse *mca_chipset_tag_t;
typedef int mca_intr_handle_t;
/* System Configuration Block - this info is returned by the BIOS call */
struct ps2_sys_config {
u_int16_t count;
u_int8_t model;
u_int8_t submodel;
u_int8_t bios_rev;
u_int8_t feature;
#define FEATURE_RESV 0x01 /* Reserved */
#define FEATURE_MCABUS 0x02 /* MicroChannel Architecture */
#define FEATURE_EBDA 0x04 /* Extended BIOS data area allocated */
#define FEATURE_WAITEV 0x08 /* Wait for external event is supported */
#define FEATURE_KBDINT 0x10 /* Keyboard intercept called by Int 09h */
#define FEATURE_RTC 0x20 /* Real-time clock present */
#define FEATURE_IC2 0x40 /* Second interrupt chip present */
#define FEATURE_DMA3 0x80 /* DMA channel 3 used by hard disk BIOS */
u_int8_t pad[10];
} __attribute__ ((packed));
/*
* Functions provided to machine-independent MCA code.
*/
struct mcabus_attach_args;
void mca_attach_hook(struct device *, struct device *,
struct mcabus_attach_args *);
const struct evcnt *mca_intr_evcnt(mca_chipset_tag_t, mca_intr_handle_t);
void *mca_intr_establish(mca_chipset_tag_t, mca_intr_handle_t,
int, int (*)(void *), void *);
void mca_intr_disestablish(mca_chipset_tag_t, void *);
int mca_conf_read(mca_chipset_tag_t, int, int);
void mca_conf_write(mca_chipset_tag_t, int, int, int);
void mca_busprobe(void);
/* MCA register addresses for IBM PS/2 */
#define PS2_SYS_CTL_A 0x92 /* PS/2 System Control Port A */
#define MCA_MB_SETUP_REG 0x94 /* Motherboard setup register */
#define MCA_ADAP_SETUP_REG 0x96 /* Adapter setup register */
#define MCA_POS_REG_BASE 0x100 /* POS registers base address */
#define MCA_POS_REG_SIZE 8 /* POS registers window size */
#define MCA_POS_REG(n) (0x100+(n)) /* POS registers 0-7 */
/* Adapter setup register bits */
#define MCA_ADAP_SET 0x08 /* Adapter setup mode */
#define MCA_ADAP_CHR 0x80 /* Adapter channel reset */
#endif /* _I386_MCA_MACHDEP_H_ */