1 /* $OpenBSD: opti82c700reg.h,v 1.4 2000/08/08 19:12:47 mickey Exp $ */
2 /* $NetBSD: opti82c700reg.h,v 1.1 1999/11/17 01:21:20 thorpej Exp $ */
3
4 /*
5 * Copyright (c) 1999, by UCHIYAMA Yasushi
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, this list of conditions and the following disclaimer.
13 * 2. The name of the developer may NOT be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 /*
30 * Register definitions for the Opti 82c700 PCI-ISA bridge interrupt
31 * controller.
32 */
33
34 #define FIRESTAR_CFG_INTR_IRQ 0xb0 /* PCI configuration space */
35 #define FIRESTAR_CFG_INTR_PIRQ 0xb8 /* PCI configuration space */
36
37 #define FIRESTAR_PIRQ_NONE 0
38 #define FIRESTAR_PIRQ_MASK 0xdffa
39 #define FIRESTAR_LEGAL_IRQ(irq) ((irq) >= 0 && (irq) <= 15 && \
40 ((1 << (irq)) & FIRESTAR_PIRQ_MASK) != 0)
41
42 #define FIRESTAR_CFG_PIRQ_MASK 0x0f
43
44 #define FIRESTAR_TRIGGER_MASK 0x01
45 #define FIRESTAR_TRIGGER_SHIFT 4
46
47 /*
48 * Opti's suggested Link values.
49 */
50 #define FIRESTAR_PIR_REGOFS_MASK 0x07
51 #define FIRESTAR_PIR_REGOFS_SHIFT 4
52 #define FIRESTAR_PIR_REGOFS(link) \
53 (((link) >> FIRESTAR_PIR_REGOFS_SHIFT) & FIRESTAR_PIR_REGOFS_MASK)
54
55 #define FIRESTAR_PIR_SELECTSRC_MASK 0x07
56 #define FIRESTAR_PIR_SELECTSRC_SHIFT 0
57 #define FIRESTAR_PIR_SELECTSRC(link) \
58 (((link) >> FIRESTAR_PIR_SELECTSRC_SHIFT) & FIRESTAR_PIR_SELECTSRC_MASK)
59
60 #define FIRESTAR_PIR_SELECT_NONE 0
61 #define FIRESTAR_PIR_SELECT_IRQ 1
62 #define FIRESTAR_PIR_SELECT_PIRQ 2
63 #define FIRESTAR_PIR_SELECT_BRIDGE 3
64
65 #define FIRESTAR_PIR_MAKELINK(src, ofs) \
66 (((src) << FIRESTAR_PIR_SELECTSRC_SHIFT) | \
67 ((ofs) << FIRESTAR_PIR_REGOFS_SHIFT))