1 /*
2  * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without modification,
5  * are permitted provided that the following conditions are met:
6  *
7  * 1. Redistributions of source code must retain the above copyright notice, this list of
8  *    conditions and the following disclaimer.
9  *
10  * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11  *    of conditions and the following disclaimer in the documentation and/or other materials
12  *    provided with the distribution.
13  *
14  * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15  *    to endorse or promote products derived from this software without specific prior written
16  *    permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #ifndef SPI_DEV_H
32 #define SPI_DEV_H
33 
34 #include "sys/ioctl.h"
35 #include "spi_core.h"
36 #include "spi_if.h"
37 
38 struct SpiIocMsg {
39     struct SpiMsg *msg;
40     int32_t count;
41 };
42 
43 #define SPI_IOC_MAGIC 'k'
44 #define SPI_IOC_MESSAGE                 _IOW(SPI_IOC_MAGIC, 0, struct SpiIocMsg)
45 #define SPI_IOC_RD_MODE                 _IOR(SPI_IOC_MAGIC, 1, uint32_t)
46 #define SPI_IOC_RD_LSB_FIRST            _IOR(SPI_IOC_MAGIC, 2, uint32_t)
47 #define SPI_IOC_RD_BITS_PER_WORD        _IOR(SPI_IOC_MAGIC, 3, uint32_t)
48 #define SPI_IOC_RD_MAX_SPEED_HZ         _IOR(SPI_IOC_MAGIC, 4, uint32_t)
49 #define SPI_IOC_WR_MODE                 _IOW(SPI_IOC_MAGIC, 1, uint32_t)
50 #define SPI_IOC_WR_LSB_FIRST            _IOW(SPI_IOC_MAGIC, 2, uint32_t)
51 #define SPI_IOC_WR_BITS_PER_WORD        _IOW(SPI_IOC_MAGIC, 3, uint32_t)
52 #define SPI_IOC_WR_MAX_SPEED_HZ         _IOW(SPI_IOC_MAGIC, 4, uint32_t)
53 
54 void SpiAddDev(struct SpiDev *device);
55 void SpiRemoveDev(struct SpiDev *device);
56 
57 #endif /* SPI_DEV_H */
58