root/sys/arch/alpha/pci/mcpciavar.h
/* $OpenBSD: mcpciavar.h,v 1.1 2007/03/16 21:22:27 robert Exp $ */
/* $NetBSD: mcpciavar.h,v 1.4 1999/04/16 02:18:07 thorpej Exp $ */

/*
 * Copyright (c) 1998 by Matthew Jacob
 * NASA AMES Research Center.
 * 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 immediately at the beginning of the file, without modification,
 *    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 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 AUTHOR 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.
 */

#include <dev/pci/pcivar.h>
#include <sys/extent.h>

#include <alpha/pci/pci_sgmap_pte64.h>

#define _FSTORE (EXTENT_FIXED_STORAGE_SIZE(8) / sizeof(long))

/*
 * MPCIA configuration.
 */
struct mcpcia_config {
        int                             cc_gid; /* GID of this MCbus */
        int                             cc_mid; /* MCbus Module ID */
        int                             cc_initted;
        int                             cc_mallocsafe;
        struct alpha_bus_space          cc_iot;
        struct alpha_bus_space          cc_memt;
        struct extent *                 cc_io_ex;
        struct extent *                 cc_d_mem_ex;
        struct extent *                 cc_s_mem_ex;
        struct alpha_pci_chipset        cc_pc;
        struct mcpcia_softc *           cc_sc;  /* back pointer */
        long                            cc_io_exstorage[_FSTORE];
        long                            cc_dmem_exstorage[_FSTORE];
        long                            cc_smem_exstorage[_FSTORE];
        unsigned long                   cc_sysbase;     /* shorthand */
        struct alpha_bus_dma_tag        cc_dmat_direct;
        struct alpha_bus_dma_tag        cc_dmat_pci_sgmap;
        struct alpha_bus_dma_tag        cc_dmat_isa_sgmap;
        struct alpha_sgmap              cc_pci_sgmap;
        struct alpha_sgmap              cc_isa_sgmap;
        char                            pc_io_ex_name[16];
        char                            pc_mem_dex_name[16];
        char                            pc_mem_sex_name[16];
        long                            pc_io_ex_storage[EXTENT_FIXED_STORAGE_SIZE(8) / sizeof(long)];
        long                            pc_mem_dex_storage[EXTENT_FIXED_STORAGE_SIZE(8) / sizeof(long)];
        long                            pc_mem_sex_storage[EXTENT_FIXED_STORAGE_SIZE(8) / sizeof(long)];
};

struct mcpcia_softc {
        struct device           mcpcia_dev;
        struct mcpcia_config    *mcpcia_cc;     /* config info */
};

void    mcpcia_init (void);
void    mcpcia_init0 (struct mcpcia_config *, int);
void    mcpcia_pci_init (pci_chipset_tag_t, void *);
void    mcpcia_dma_init (struct mcpcia_config *);

void    mcpcia_bus_io_init (bus_space_tag_t, void *);
void    mcpcia_bus_mem_init (bus_space_tag_t, void *);

/*
 * IO Interrupt handler.
 */
void    mcpcia_iointr (void *, unsigned long);

/*
 * There are four PCI slots per MCPCIA PCI bus here, but some are 'hidden'-
 * none seems to be higher than 6 though.
 */
#define MCPCIA_MAXDEV   6
#define MCPCIA_MAXSLOT  8

/*
 * Interrupt Stuff for MCPCIA systems.
 *
 * EISA interrupts (at vector 0x800) have to be shared interrupts-
 * and that can be easily managed. All the PCI interrupts are deterministic
 * in that they start at vector 0x900, 0x40 per PCI slot, 0x200 per
 * MCPCIA, 4 MCPCIAs per GCBUS....
 */
#define MCPCIA_EISA_KEYB_IRQ    1
#define MCPCIA_EISA_MOUSE_IRQ   12
#define MCPCIA_VEC_EISA         0x800
#define MCPCIA_VEC_PCI          0x900

/*
 * Special Vectors
 */
#define MCPCIA_I2C_CVEC         0xA90
#define MCPCIA_I2C_BVEC         0xAA0