1 /*        $NetBSD: giovar.h,v 1.10 2011/07/01 18:53:46 dyoung Exp $   */
2 
3 /*
4  * Copyright (c) 2000 Soren S. Jorvang
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *          This product includes software developed for the
18  *          NetBSD Project.  See http://www.NetBSD.org/ for
19  *          information about NetBSD.
20  * 4. The name of the author may not be used to endorse or promote products
21  *    derived from this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  */
34 
35 /*
36  * GIO 32/32-bis/64 bus
37  */
38 
39 #include <sys/bus.h>
40 
41 struct giobus_attach_args {
42           bus_space_tag_t     gba_iot;
43           bus_space_handle_t gba_ioh;
44 
45 #define GIOBUS_GIO32          0
46 #define GIOBUS_GIO32BIS       1
47 #define GIOBUS_GIO64          2
48           int                 gba_type;
49 };
50 
51 struct gio_attach_args {
52           bus_space_tag_t     ga_iot;
53           bus_space_handle_t ga_ioh;
54           bus_dma_tag_t       ga_dmat;
55 
56           int                 ga_slot;  /* not valid if graphics */
57           u_int32_t ga_addr;
58 
59           u_int32_t ga_product;         /* not valid if graphics */
60 };
61 
62 
63 #define GIO_SLOT_GFX                    0
64 #define GIO_SLOT_EXP0                   1
65 #define GIO_SLOT_EXP1                   2
66 
67 #define GIO_ARB_RT            0x001     /* real-time device */
68 #define GIO_ARB_LB            0x002     /* long-burst device */
69 
70 #define GIO_ARB_MST           0x004     /* bus master enable */
71 #define GIO_ARB_SLV           0x008     /* slave */
72 
73 #define GIO_ARB_PIPE                    0x010     /* pipelining enable */
74 #define GIO_ARB_NOPIPE                  0x020     /* pipelining disable */
75 
76 #define GIO_ARB_32BIT                   0x040     /* 32-bit transfers */
77 #define GIO_ARB_64BIT                   0x080     /* 64-bit transfers */
78 
79 #define GIO_ARB_HPC2_32BIT    0x100     /* 32-bit secondary HPC (ignores slot)*/
80 #define GIO_ARB_HPC2_64BIT    0x200     /* 64-bit secondary HPC (ignores slot)*/
81 
82 int                 gio_cnattach(void);
83 int                 gio_arb_config(int, uint32_t);
84 void             *gio_intr_establish(int, int, int (*)(void *), void *);
85 const char     *gio_product_string(int);
86 
87