1/* $NetBSD: exireg.h,v 1.1 2025/11/15 17:59:23 jmcneill Exp $ */
2
3/*-
4 * Copyright (c) 2025 Jared McNeill <jmcneill@invisible.ca>
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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * 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#ifndef _WII_DEV_EXIREG_H
30#define _WII_DEV_EXIREG_H
31
32#define	EXI_CSR(n)		(0x00 + (n) * 0x14)
33#define  EXI_CSR_EXTINT		__BIT(11)
34#define  EXI_CSR_EXTINTMASK	__BIT(10)
35#define	 EXI_CSR_CS		__BITS(9,7)
36#define	 EXI_CSR_CLK		__BITS(6,4)
37#define	EXI_MAR(n)		(0x04 + (n) * 0x14)
38#define	EXI_LENGTH(n)		(0x08 + (n) * 0x14)
39#define	EXI_CR(n)		(0x0c + (n) * 0x14)
40#define	 EXI_CR_TLEN		__BITS(5,4)
41#define  EXI_CR_RW		__BITS(3,2)
42#define  EXI_CR_RW_READ		__SHIFTIN(0, EXI_CR_RW)
43#define  EXI_CR_RW_WRITE	__SHIFTIN(1, EXI_CR_RW)
44#define  EXI_CR_RW_READWRITE	__SHIFTIN(2, EXI_CR_RW)
45#define	 EXI_CR_DMA		__BIT(1)
46#define  EXI_CR_TSTART		__BIT(0)
47#define	EXI_DATA(n)		(0x10 + (n) * 0x14)
48
49typedef enum {
50	EXI_FREQ_1MHZ = 0,
51	EXI_FREQ_2MHZ = 1,
52	EXI_FREQ_4MHZ = 2,
53	EXI_FREQ_8MHZ = 3,
54	EXI_FREQ_16MHZ = 4,
55	EXI_FREQ_32MHZ = 5,
56} exi_freq_t;
57
58#endif /* !_WII_DEV_EXIREG_H */
59