1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2000 Doug Rabson
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 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#ifndef _SYS_SPIGENIO_H_
30#define _SYS_SPIGENIO_H_
31
32#include <sys/_iovec.h>
33
34struct spigen_transfer {
35 struct iovec st_command; /* master to slave */
36 struct iovec st_data; /* slave to master and/or master to slave */
37};
38
39struct spigen_transfer_mmapped {
40 size_t stm_command_length; /* at offset 0 in mmap(2) area */
41 size_t stm_data_length; /* at offset stm_command_length */
42};
43
44#define SPIGENIOC_BASE 'S'
45#define SPIGENIOC_TRANSFER _IOW(SPIGENIOC_BASE, 0, \
46 struct spigen_transfer)
47#define SPIGENIOC_TRANSFER_MMAPPED _IOW(SPIGENIOC_BASE, 1, \
48 struct spigen_transfer_mmapped)
49#define SPIGENIOC_GET_CLOCK_SPEED _IOR(SPIGENIOC_BASE, 2, uint32_t)
50#define SPIGENIOC_SET_CLOCK_SPEED _IOW(SPIGENIOC_BASE, 3, uint32_t)
51#define SPIGENIOC_GET_SPI_MODE _IOR(SPIGENIOC_BASE, 4, uint32_t)
52#define SPIGENIOC_SET_SPI_MODE _IOW(SPIGENIOC_BASE, 5, uint32_t)
53
54#endif /* !_SYS_SPIGENIO_H_ */