/* $NetBSD: ciavar.h,v 1.23 2023/12/04 00:32:10 thorpej Exp $ */

/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
*  Software Distribution Coordinator  or  [email protected]
*  School of Computer Science
*  Carnegie Mellon University
*  Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/

#include <sys/vmem.h>

#include <dev/isa/isavar.h>
#include <dev/pci/pcivar.h>
#include <alpha/pci/pci_sgmap_pte64.h>

/*
* A 21171 chipset's configuration.
*
* All of the information that the chipset-specific functions need to
* do their dirty work (and more!).
*/
struct cia_config {
       int     cc_initted;

       struct alpha_bus_space cc_iot, cc_memt;
       struct alpha_pci_chipset cc_pc;

       struct alpha_bus_dma_tag cc_dmat_direct;
       struct alpha_bus_dma_tag cc_dmat_sgmap_lo;
       struct alpha_bus_dma_tag cc_dmat_sgmap_hi;

       struct alpha_sgmap cc_sgmap_lo;
       struct alpha_sgmap cc_sgmap_hi;

       uint32_t cc_hae_mem;
       uint32_t cc_hae_io;

       uint32_t cc_rev;
       uint32_t cc_cnfg;

       int     cc_flags;

#define CCF_ISPYXIS     0x01            /* chip is a 21174 Pyxis */
#define CCF_PYXISBUG    0x02
#define CCF_PCI_USE_BWX 0x04            /* use BWX for PCI config space */
#define CCF_BUS_USE_BWX 0x08            /* use BWX for bus space */

       vmem_t *cc_io_arena;
       vmem_t *cc_d_mem_arena;
       vmem_t *cc_s_mem_arena;

       struct {
               uint32_t wbase[4];
               uint32_t wmask[4];
               uint32_t tbase[4];
       } cc_saved_windows;
};

struct cia_softc {
       device_t sc_dev;

       struct  cia_config *sc_ccp;
};

void    cia_init(struct cia_config *);
void    cia_pci_init(pci_chipset_tag_t, void *);
void    cia_dma_init(struct cia_config *);

void    cia_bwx_bus_io_init(bus_space_tag_t, void *);
void    cia_bwx_bus_mem_init(bus_space_tag_t, void *);

void    cia_swiz_bus_io_init(bus_space_tag_t, void *);
void    cia_swiz_bus_mem_init(bus_space_tag_t, void *);

void    cia_pyxis_intr_enable(int, int);