1 /* 2 * Copyright (c) 2013-2016 François Tigeot 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef _UAPI_UAPI_I2C_H_ 28 #define _UAPI_UAPI_I2C_H_ 29 30 #include <linux/types.h> 31 32 struct i2c_msg { 33 uint16_t addr; 34 uint16_t flags; 35 uint16_t len; 36 uint8_t *buf; 37 }; 38 39 #define I2C_M_TEN 0x0010 40 #define I2C_M_RECV_LEN 0x0400 41 #define I2C_M_NO_RD_ACK 0x0800 42 #define I2C_M_IGNORE_NAK 0x1000 43 #define I2C_M_REV_DIR_ADDR 0x2000 44 45 #define I2C_FUNC_I2C 0x00000001 46 #define I2C_FUNC_10BIT_ADDR 0x00000002 47 #define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 48 #define I2C_FUNC_SMBUS_PEC 0x00000008 49 #define I2C_FUNC_NOSTART 0x00000010 50 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 51 #define I2C_FUNC_SMBUS_QUICK 0x00010000 52 #define I2C_FUNC_SMBUS_READ_BYTE 0x00020000 53 #define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000 54 #define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000 55 #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000 56 #define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000 57 #define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000 58 #define I2C_FUNC_SMBUS_PROC_CALL 0x00800000 59 #define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000 60 #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 61 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 62 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 63 64 65 66 #define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \ 67 I2C_FUNC_SMBUS_WRITE_BYTE) 68 69 #define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \ 70 I2C_FUNC_SMBUS_WRITE_BYTE_DATA) 71 72 #define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \ 73 I2C_FUNC_SMBUS_WRITE_WORD_DATA) 74 75 #define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \ 76 I2C_FUNC_SMBUS_WRITE_I2C_BLOCK) 77 78 #define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | \ 79 I2C_FUNC_SMBUS_BYTE | \ 80 I2C_FUNC_SMBUS_BYTE_DATA | \ 81 I2C_FUNC_SMBUS_WORD_DATA | \ 82 I2C_FUNC_SMBUS_PROC_CALL | \ 83 I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \ 84 I2C_FUNC_SMBUS_I2C_BLOCK | \ 85 I2C_FUNC_SMBUS_PEC) 86 87 #define I2C_SMBUS_BLOCK_MAX 32 88 89 #endif /* _UAPI_LINUX_I2C_H_ */ 90