1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ***   To edit the content of this header, modify the corresponding
11  ***   source file (e.g. under external/kernel-headers/original/) then
12  ***   run bionic/libc/kernel/tools/update_all.py
13  ***
14  ***   Any manual change here will be lost the next time this script will
15  ***   be run. You've been warned!
16  ***
17  ****************************************************************************
18  ****************************************************************************/
19 #ifndef _UAPI_LINUX_I2C_H
20 #define _UAPI_LINUX_I2C_H
21 #include <linux/types.h>
22 struct i2c_msg {
23   __u16 addr;
24   __u16 flags;
25 #define I2C_M_RD 0x0001
26 #define I2C_M_TEN 0x0010
27 #define I2C_M_DMA_SAFE 0x0200
28 #define I2C_M_RECV_LEN 0x0400
29 #define I2C_M_NO_RD_ACK 0x0800
30 #define I2C_M_IGNORE_NAK 0x1000
31 #define I2C_M_REV_DIR_ADDR 0x2000
32 #define I2C_M_NOSTART 0x4000
33 #define I2C_M_STOP 0x8000
34   __u16 len;
35   __u8 * buf;
36 };
37 #define I2C_FUNC_I2C 0x00000001
38 #define I2C_FUNC_10BIT_ADDR 0x00000002
39 #define I2C_FUNC_PROTOCOL_MANGLING 0x00000004
40 #define I2C_FUNC_SMBUS_PEC 0x00000008
41 #define I2C_FUNC_NOSTART 0x00000010
42 #define I2C_FUNC_SLAVE 0x00000020
43 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000
44 #define I2C_FUNC_SMBUS_QUICK 0x00010000
45 #define I2C_FUNC_SMBUS_READ_BYTE 0x00020000
46 #define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000
47 #define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000
48 #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000
49 #define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000
50 #define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000
51 #define I2C_FUNC_SMBUS_PROC_CALL 0x00800000
52 #define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000
53 #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000
54 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000
55 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000
56 #define I2C_FUNC_SMBUS_HOST_NOTIFY 0x10000000
57 #define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE)
58 #define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)
59 #define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | I2C_FUNC_SMBUS_WRITE_WORD_DATA)
60 #define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | I2C_FUNC_SMBUS_WRITE_BLOCK_DATA)
61 #define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)
62 #define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_PROC_CALL | I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | I2C_FUNC_SMBUS_I2C_BLOCK | I2C_FUNC_SMBUS_PEC)
63 #define I2C_SMBUS_BLOCK_MAX 32
64 union i2c_smbus_data {
65   __u8 byte;
66   __u16 word;
67   __u8 block[I2C_SMBUS_BLOCK_MAX + 2];
68 };
69 #define I2C_SMBUS_READ 1
70 #define I2C_SMBUS_WRITE 0
71 #define I2C_SMBUS_QUICK 0
72 #define I2C_SMBUS_BYTE 1
73 #define I2C_SMBUS_BYTE_DATA 2
74 #define I2C_SMBUS_WORD_DATA 3
75 #define I2C_SMBUS_PROC_CALL 4
76 #define I2C_SMBUS_BLOCK_DATA 5
77 #define I2C_SMBUS_I2C_BLOCK_BROKEN 6
78 #define I2C_SMBUS_BLOCK_PROC_CALL 7
79 #define I2C_SMBUS_I2C_BLOCK_DATA 8
80 #endif
81