/* $NetBSD: intiovar.h,v 1.15 2019/12/15 16:48:26 tsutsui Exp $ */

/* $NetBSD: intiovar.h,v 1.15 2019/12/15 16:48:26 tsutsui Exp $ */

/*
*
* Copyright (c) 1998 NetBSD Foundation, Inc.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/

/*
* NetBSD/x68k internal I/O virtual bus.
*/

#ifndef _INTIOVAR_H_
#define _INTIOVAR_H_

#include <machine/frame.h>
#include <sys/malloc.h>
#include <sys/extent.h>
#include "locators.h"

#define cf_addr cf_loc[INTIOCF_ADDR]
#define cf_intr cf_loc[INTIOCF_INTR]
#define cf_dma cf_loc[INTIOCF_DMA]
#define cf_dmaintr cf_loc[INTIOCF_DMAINTR]

struct intio_attach_args {
bus_space_tag_t ia_bst; /* bus_space tag */
bus_dma_tag_t ia_dmat; /* bus_dma tag */

const char *ia_name; /* device name */
int ia_addr; /* addr */
int ia_size;
int ia_intr; /* interrupt vector */
int ia_dma; /* dma channel */
int ia_dmaintr; /* interrupt vector for dmac */
};

struct intio_softc {
bus_space_tag_t sc_bst;
bus_dma_tag_t sc_dmat;
struct extent *sc_map;
device_t sc_dmac;
};

enum intio_map_flag {
INTIO_MAP_ALLOCATE = 0,
INTIO_MAP_TESTONLY = 1
};
int intio_map_allocate_region(device_t, struct intio_attach_args *,
enum intio_map_flag);
int intio_map_free_region(device_t, struct intio_attach_args *);

typedef int (*intio_intr_handler_t)(void *);

int intio_intr_establish(int, const char *, intio_intr_handler_t, void *);
int intio_intr_establish_ext(int, const char *, const char *,
intio_intr_handler_t, void *);
int intio_intr_disestablish(int, void *);
int intio_intr(struct frame *);

#define INTIO_SYSPORT (0x00e8e000)
#define intio_sysport ((volatile uint8_t *)IIOV(INTIO_SYSPORT))
#define sysport_contrast 1
#define sysport_tvctrl 3
#define sysport_imageunit 5
#define sysport_keyctrl 7
#define sysport_waitctrl 9
#define sysport_mpustat 11
#define sysport_sramwp 13
#define sysport_powoff 15

#define intio_set_sysport_contrast(a) \
intio_sysport[sysport_contrast] = (a) /* 0-15 */
#define intio_set_sysport_tvctrl(a) \
intio_sysport[sysport_tvctrl] = (a)
#define INTIO_SYSPORT_TVCTRL 0x08
#define intio_set_sysport_imageunit(a) \
intio_sysport[sysport_imageunit] = (a)
#define intio_set_sysport_keyctrl(a) \
intio_sysport[sysport_keyctrl] = (a)
#define INTIO_SYSPORT_KBENABLE 0x08
#define intio_set_sysport_waitctrl(a) \
intio_sysport[sysport_waitctrl] = (a) /* X68030 only */
#define intio_set_sysport_sramwp(a) \
intio_sysport[sysport_sramwp] = (a)
#define INTIO_SYSPORT_SRAMWP 0x31
#define intio_set_sysport_powoff(a) \
intio_sysport[sysport_powoff] = (a)

#define intio_get_sysport_contrast() \
(intio_sysport[sysport_contrast])
#define intio_get_sysport_tvctrl() \
(intio_sysport[sysport_tvctrl])
#define INTIO_SYSPORT_TVSTAT 0x08
#define intio_get_sysport_keyctrl() \
(intio_sysport[sysport_keyctrl])
#define INTIO_SYSPORT_KBEXIST 0x08
#define intio_get_sysport_waitctrl() \
(intio_sysport[sysport_waitctrl])
#define intio_get_sysport_sramwp() \
(intio_sysport[sysport_sramwp])
#define intio_get_sysport_mpustat() \
(intio_sysport[sysport_mpustat])

/* I/O controller (sicilian/pluto) */
#define INTIO_SICILIAN (0x00e9c000)
#define intio_sicilian ((volatile uint8_t *)IIOV(INTIO_SICILIAN))
#define sicilian_intr 1
#define sicilian_ivec 3

#define intio_get_sicilian_intr() \
(intio_sicilian[sicilian_intr])
#define intio_set_sicilian_intr(a) \
intio_sicilian[sicilian_intr] = (a)
#define SICILIAN_INTR_PAR 0x01
#define SICILIAN_INTR_FDD 0x02
#define SICILIAN_INTR_FDC 0x04
#define SICILIAN_INTR_HDD 0x08
#define SICILIAN_STAT_HDD 0x10
#define SICILIAN_STAT_PAR 0x20
#define SICILIAN_STAT_FDD 0x40
#define SICILIAN_STAT_FDC 0x80

#define intio_enable_intr(a) \
intio_sicilian[sicilian_intr] = ((a) | intio_sicilian[sicilian_intr])
#define intio_disable_intr(a) \
intio_sicilian[sicilian_intr] = (~(a) & intio_sicilian[sicilian_intr])

#define intio_set_sicilian_ivec(a) \
intio_sicilian[sicilian_ivec] = (a)
void intio_set_ivec(int);

struct intio_dma_cookie {
int id_flags; /* flags; see below */

/*
* Information about the original buffer used during
* DMA map syncs. Note that origibuflen is only used
* for ID_BUFTYPE_LINEAR.
*/
void *id_origbuf; /* pointer to orig buffer if
bouncing */
bus_size_t id_origbuflen; /* ...and size */
int id_buftype; /* type of buffer */

void *id_bouncebuf; /* pointer to the bounce buffer */
bus_size_t id_bouncebuflen; /* ...and size */
int id_nbouncesegs; /* number of valid bounce segs */
bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer
physical memory segments */
};

/* id_flags */
#define ID_MIGHT_NEED_BOUNCE 0x01 /* map could need bounce buffers */
#define ID_HAS_BOUNCE 0x02 /* map currently has bounce buffers */
#define ID_IS_BOUNCING 0x04 /* map is bouncing current xfer */

/* id_buftype */
#define ID_BUFTYPE_INVALID 0
#define ID_BUFTYPE_LINEAR 1
#define ID_BUFTYPE_MBUF 2
#define ID_BUFTYPE_UIO 3
#define ID_BUFTYPE_RAW 4

#endif