1/* $NetBSD: miniipc.h,v 1.1 2025/11/16 20:11:47 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 REGENTS 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 REGENTS 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#ifndef _WII_MINIIPC_H
30#define _WII_MINIIPC_H
31
32#include <lib/libsa/stand.h>
33
34#define IPC_NUM_ARGS	6
35
36typedef struct {
37	union {
38		struct {
39			uint8_t		flags;
40			uint8_t		device;
41			uint16_t	req;
42		};
43		uint32_t		code;
44	};
45	uint32_t			tag;
46	uint32_t			args[IPC_NUM_ARGS];
47} ipc_request_t;
48
49typedef struct {
50	char				magic[3];
51	char				version;
52	void				*mem2_boundary;
53	volatile ipc_request_t		*ipc_in;
54	uint32_t			ipc_in_size;
55	volatile ipc_request_t		*ipc_out;
56	uint32_t			ipc_out_size;
57} ipc_info_header_t;
58
59bool	miniipc_probe(void);
60int	miniipc_ping(void);
61int	miniipc_sdmmc_ack(uint32_t *);
62int	miniipc_sdmmc_state(uint32_t *);
63int	miniipc_sdmmc_size(uint32_t *);
64int	miniipc_sdmmc_read(uint32_t, uint32_t, void *);
65int	miniipc_sdmmc_write(uint32_t, uint32_t, const void *);
66
67#endif /* !_WII_MINIIPC_H */
68