/* $NetBSD: mca_machdep.h,v 1.3 2011/07/18 17:26:55 dyoung Exp $ */

/* $NetBSD: mca_machdep.h,v 1.3 2011/07/18 17:26:55 dyoung Exp $ */

/*
* Copyright (c) 2000, 2001 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 _RS6000_MCA_MACHDEP_H_
#define _RS6000_MCA_MACHDEP_H_

#define _POWERPC_BUS_DMA_PRIVATE
#include <sys/bus.h>
#include <machine/iocc.h>

/*
* rs6000-specific definitions for MCA autoconfiguration.
*/

extern struct powerpc_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 x86_mca_chipset {
void * /*struct mca_dma_state*/ ic_dmastate;
};

typedef struct x86_mca_chipset *mca_chipset_tag_t;
typedef int mca_intr_handle_t;

/*
* Functions provided to machine-independent MCA code.
*/
struct mcabus_attach_args;

void mca_attach_hook(device_t, device_t, struct mcabus_attach_args *);
int mca_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_dmamap_t *, int);
void mca_dma_set_ioport(int dma, uint16_t port);
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);

/*
* Flags for DMA. Avoid BUS_DMA_BUS1, we share dmamap routines with ISA and
* that flag is used for different purpose within _isa_dmamap_*().
*/
#define MCABUS_DMA_IOPORT BUS_DMA_BUS2 /* io-port based DMA */
#define MCABUS_DMA_16BIT BUS_DMA_BUS3 /* 16bit DMA */
#define _MCABUS_DMA_USEDMACTRL BUS_DMA_BUS4 /* internal flag */

/*
* These two are used to light disk busy LED on PS/2 during disk operations.
*/
void mca_disk_busy(void);
void mca_disk_unbusy(void);

/* MCA register addresses for PPC */

#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 (IOCC_POSBASE + 0x100)
/* POS registers base address */
#define MCA_POS_REG_SIZE 8 /* POS registers window size */

#define MCA_POS_REG(n) (IOCC_POSBASE + 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 */

#define MCA_MAX_SLOTS 16 /* max number of slots per bus */
#endif /* _RS6000_MCA_MACHDEP_H_ */