/*      $NetBSD: iomap.h,v 1.17 2024/09/08 09:36:49 rillig Exp $        */

/*
* Copyright (c) 1995 Leo Weppelman.
* 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 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 _MACHINE_IOMAP_H
#define _MACHINE_IOMAP_H

#ifdef _KERNEL_OPT
#include "opt_mbtype.h"
#endif
/*
* Atari TT hardware:
* I/O Address maps
*/
#ifdef _KERNEL
extern vaddr_t  stio_addr;      /* Where the st io-area is mapped       */
#define AD_STIO (stio_addr)     /* .. see atari_init.c                  */

/*
* PCI KVA addresses. These are determined in atari_init.c. Except for
* the config-space, they should be used for a PCI-console only. Other
* cards should use the bus-functions to map io & mem spaces.
* Each card gets a config area of PAGE_SIZE bytes.
* 'pci_mem_uncached' is used by the Milan interrupt handler that frobs
* with the PLX. Also, the Milan uses the first page of 'pci_io_addr' for
* access to some of its ISA I/O devices (RTC, Interrupt controller, etc.)
*/
extern vaddr_t  pci_conf_addr;  /* KVA base of PCI config space         */
extern vaddr_t  pci_io_addr;    /* KVA base of PCI io-space             */
extern vaddr_t  pci_mem_addr;   /* KVA base of PCI mem-space            */
extern vaddr_t  pci_mem_uncached; /* KVA base of an uncached PCI mem-page */
#endif /* _KERNEL */

#define PCI_CONFB_PHYS          (0xA0000000L)
#define PCI_CONFM_PHYS          (0x00010000L)

#if defined(_ATARIHW_)
#define PCI_IO_PHYS             (0xB0000000L)
#define PCI_MEM_PHYS            (0x80000000L)
#define PCI_VGA_PHYS            (0x800a0000L)
#define ISA_IOSTART             (0xfff30000L) /* XXX: With byte frobbing */
#define ISA_MEMSTART            (0xff000000L)
#endif /* defined(_ATARIHW_) */

#if defined(_MILANHW_)
#define PCI_IO_PHYS             (0x80000000L)
#define PCI_MEM_PHYS            (0x40000000L)
#define PCI_VGA_PHYS            (0x400a0000L)
#define ISA_IOSTART             (0x80000000L) /* !NO! byte frobbing      */
#define ISA_MEMSTART            (0x40000000L)
#endif  /* defined(_MILANHW_) */

/*
* Pre-allocated PCI-memory regions (atari_init.c). We need those in the
* boot-stages.
* XXX: Can probably be reduced to only PCI_CONFIG_SIZE (Leo).
*/
#define PCI_CONFIG_SIZE (4 * PAGE_SIZE)
#define PCI_IO_SIZE     (PAGE_SIZE)
#define PCI_MEM_SIZE    (PAGE_SIZE)

#define PCI_VGA_SIZE    (32 * 1024) /* XXX Leo: Only used by grfabs_et now. */

/*
* See bootm_init()/bootm_alloc() in bus.c for the usage of this pool
* of pre-allocated VA-space.
*/
#define BOOTM_VA_POOL   (32 * 8192)     /* Pre-allocated VA-space       */

#define AD_RAM          (0x000000L)     /* main memory                  */
#define AD_CART         (0xFA0000L)     /* expansion cartridge          */
#define AD_ROM          (0xFC0000L)     /* system ROM                   */
#define STIO_SIZE       (0x8000L)       /* Size of mapped I/O devices   */

/*
* Physical address of I/O area. Use only for pte initialisation!
*/
#define STIO_PHYS       ((machineid & (ATARI_HADES | ATARI_MILAN))      \
                               ? 0xffff8000L                           \
                               : 0x00ff8000L)

#if defined(_ATARIHW_)

/*
* I/O addresses in the STIO area:
*/
#define AD_RAMCFG       (AD_STIO + 0x0000)      /* ram configuration    */
#define AD_FAL_MON_TYPE (AD_STIO + 0x0006)      /* Falcon monitor type  */
#define AD_VIDEO        (AD_STIO + 0x0200)      /* video controller     */
#define AD_RESERVED     (AD_STIO + 0x0400)      /* reserved             */
#define AD_DMA          (AD_STIO + 0x0600)      /* DMA device access    */
#define AD_SCSI_DMA     (AD_STIO + 0x0700)      /* SCSI DMA registers   */
#define AD_NCR5380      (AD_STIO + 0x0780)      /* SCSI controller      */
#define AD_SOUND        (AD_STIO + 0x0800)      /* YM-2149              */
#define AD_RTC          (AD_STIO + 0x0960)      /* TT realtime clock    */
#define AD_SCC          (AD_STIO + 0x0C80)      /* SCC 8530             */
#define AD_SCU          (AD_STIO + 0x0E00)      /* System Control Unit  */
#define AD_CFG_SWITCH   (AD_STIO + 0x1200)      /* Config switches      */
#define AD_MFP          (AD_STIO + 0x7A00)      /* 68901                */
#define AD_MFP2         (AD_STIO + 0x7A80)      /* 68901-TT             */
#define AD_ACIA         (AD_STIO + 0x7C00)      /* 2 * 6850             */
#endif /* defined(_ATARIHW_) */

#if defined(_MILANHW_)
/*
* Milan onboard I/O
*/
#define AD_MFP          (AD_STIO + 0x4100)      /* 68901                */
#define AD_PLX          (AD_STIO + 0x4200)      /* PLX9080              */

/*
* Milan special locations in the first page of the PCI I/O space.
*/
#define AD_8259_MASTER  (pci_io_addr + 0x20)    /* Master int. contr.   */
#define AD_8259_SLAVE   (pci_io_addr + 0xA0)    /* Slave int. contr.    */
#define AD_RTC          (pci_io_addr + 0x70)    /* MC146818 compat. RTC */

#endif /* defined(_MILANHW_) */

#endif /* _MACHINE_IOMAP_H */