sys/arch/alpha/pci/mcpciavar.h

   1 /* $NetBSD: mcpciavar.h,v 1.4 1999/04/16 02:18:07 thorpej Exp $ */
   2
   3 /*
   4  * Copyright (c) 1998 by Matthew Jacob
   5  * NASA AMES Research Center.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice immediately at the beginning of the file, without modification,
  13  *    this list of conditions, and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. The name of the author may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  24  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include <dev/pci/pcivar.h>
  34 #include <sys/extent.h>
  35
  36 #include <alpha/pci/pci_sgmap_pte64.h>
  37
  38 #define _FSTORE (EXTENT_FIXED_STORAGE_SIZE(8) / sizeof(long))
  39
  40 /*
  41  * MPCIA configuration.
  42  */
  43 struct mcpcia_config {
  44         int                             cc_gid; /* GID of this MCbus */
  45         int                             cc_mid; /* MCbus Module ID */
  46         int                             cc_initted;
  47         int                             cc_mallocsafe;
  48         struct alpha_bus_space          cc_iot;
  49         struct alpha_bus_space          cc_memt;
  50         struct extent *                 cc_io_ex;
  51         struct extent *                 cc_d_mem_ex;
  52         struct extent *                 cc_s_mem_ex;
  53         struct alpha_pci_chipset        cc_pc;
  54         struct mcpcia_softc *           cc_sc;  /* back pointer */
  55         long                            cc_io_exstorage[_FSTORE];
  56         long                            cc_dmem_exstorage[_FSTORE];
  57         long                            cc_smem_exstorage[_FSTORE];
  58         unsigned long                   cc_sysbase;     /* shorthand */
  59         struct alpha_bus_dma_tag        cc_dmat_direct;
  60         struct alpha_bus_dma_tag        cc_dmat_pci_sgmap;
  61         struct alpha_bus_dma_tag        cc_dmat_isa_sgmap;
  62         struct alpha_sgmap              cc_pci_sgmap;
  63         struct alpha_sgmap              cc_isa_sgmap;
  64 };
  65
  66 struct mcpcia_softc {
  67         struct device           mcpcia_dev;
  68         struct mcpcia_config    *mcpcia_cc;     /* config info */
  69 };
  70
  71 void    mcpcia_init(void);
  72 void    mcpcia_config_cleanup(void);
  73
  74 void    mcpcia_pci_init(pci_chipset_tag_t, void *);
  75 void    mcpcia_dma_init(struct mcpcia_config *);
  76
  77 void    mcpcia_bus_io_init(bus_space_tag_t, void *);
  78 void    mcpcia_bus_mem_init(bus_space_tag_t, void *);
  79
  80 /*
  81  * IO Interrupt handler.
  82  */
  83 void    mcpcia_iointr(void *, unsigned long);
  84
  85 /*
  86  * There are four PCI slots per MCPCIA PCI bus here, but some are 'hidden'-
  87  * none seems to be higher than 6 though.
  88  */
  89 #define MCPCIA_MAXDEV   6
  90 #define MCPCIA_MAXSLOT  8
  91
  92 /*
  93  * Interrupt Stuff for MCPCIA systems.
  94  *
  95  * EISA interrupts (at vector 0x800) have to be shared interrupts-
  96  * and that can be easily managed. All the PCI interrupts are deterministic
  97  * in that they start at vector 0x900, 0x40 per PCI slot, 0x200 per
  98  * MCPCIA, 4 MCPCIAs per GCBUS....
  99  */
 100 #define MCPCIA_EISA_KEYB_IRQ    1
 101 #define MCPCIA_EISA_MOUSE_IRQ   12
 102 #define MCPCIA_VEC_EISA         0x800
 103 #define MCPCIA_VEC_PCI          0x900
 104
 105 /*
 106  * Special Vectors
 107  */
 108 #define MCPCIA_I2C_CVEC         0xA90
 109 #define MCPCIA_I2C_BVEC         0xAA0