1 /* $OpenBSD: opti82c558reg.h,v 1.3 2000/03/28 03:37:59 mickey Exp $ */
2 /* $NetBSD: opti82c558reg.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 82c558 PCI-ISA bridge interrupt
31 * controller.
32 */
33
34 /*
35 * PCI IRQ Select Register
36 */
37
38 #define VIPER_CFG_PIRQ 0x40 /* PCI configuration space */
39
40 /*
41 * Trigger setting:
42 *
43 * [1:7]=>5,9,10,11,12,14,15 Edge = 0 Level = 1
44 */
45 #define VIPER_CFG_TRIGGER_SHIFT 16
46
47 #define VIPER_LEGAL_LINK(link) ((link) >= 0 && (link) <= 3)
48
49 #define VIPER_PIRQ_MASK 0xde20
50 #define VIPER_LEGAL_IRQ(irq) ((irq) >= 0 && (irq) <= 15 && \
51 ((1 << (irq)) & VIPER_PIRQ_MASK) != 0)
52
53 #define VIPER_PIRQ_NONE 0
54 #define VIPER_PIRQ_5 1
55 #define VIPER_PIRQ_9 2
56 #define VIPER_PIRQ_10 3
57 #define VIPER_PIRQ_11 4
58 #define VIPER_PIRQ_12 5
59 #define VIPER_PIRQ_14 6
60 #define VIPER_PIRQ_15 7
61
62 #define VIPER_PIRQ_SELECT_MASK 0x07
63 #define VIPER_PIRQ_SELECT_SHIFT 3
64
65 #define VIPER_PIRQ(reg, x) (((reg) >> ((x) * VIPER_PIRQ_SELECT_SHIFT)) \
66 & VIPER_PIRQ_SELECT_MASK)