Apple-2gs-SW
/
hush
mirror of https://github.com/sheumann/hush.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

i2c-tools: remove duplicate definitions 

Most applets include linux' user API headers instead of duplicating
the definitions. Make it the case for i2c-tools as well.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Bartosz Golaszewski 2015-09-04 10:35:22 +02:00 committed by Denys Vlasenko
parent 8aa7cf305b
commit d9892fa0c3
1 changed files with 2 additions and 100 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

102
miscutils/i2c_tools.c
View File

@ -61,113 +61,15 @@
#include "libbb.h"
/*
* /dev/i2c-X ioctl commands. The ioctl's parameter is always an unsigned long,
* except for:
* - I2C_FUNCS, takes pointer to an unsigned long
* - I2C_RDWR, takes pointer to struct i2c_rdwr_ioctl_data
* - I2C_SMBUS, takes pointer to struct i2c_smbus_ioctl_data
*/
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
/*
* NOTE: Slave address is 7 or 10 bits, but 10-bit addresses
* are not supported due to code brokenness.
*/
/* Use this slave address. */
#define I2C_SLAVE 0x0703
/* Use this slave address, even if it is already in use by a driver. */
#define I2C_SLAVE_FORCE 0x0706
/* 0 for 7 bit addrs, != 0 for 10 bit. */
#define I2C_TENBIT 0x0704
/* Get the adapter functionality mask. */
#define I2C_FUNCS 0x0705
/* Combined R/W transfer (one STOP only). */
#define I2C_RDWR 0x0707
/* != 0 to use PEC with SMBus. */
#define I2C_PEC 0x0708
/* SMBus transfer. */
#define I2C_SMBUS 0x0720
/* Structure used in the I2C_SMBUS ioctl call. */
struct i2c_smbus_ioctl_data {
uint8_t read_write;
uint8_t command;
uint32_t size;
union i2c_smbus_data *data;
};
/* Structure used in the I2C_RDWR ioctl call. */
struct i2c_rdwr_ioctl_data {
struct i2c_msg *msgs; /* Pointers to i2c_msgs. */
uint32_t nmsgs; /* Number of i2c_msgs. */
};
/* As specified in SMBus standard. */
#define I2C_SMBUS_BLOCK_MAX 32
/* Not specified but we use same structure. */
#define I2C_SMBUS_I2C_BLOCK_MAX 32
/* Data for SMBus Messages. */
union i2c_smbus_data {
uint8_t byte;
uint16_t word;
/* block[0] is used for length and one more for PEC */
uint8_t block[I2C_SMBUS_BLOCK_MAX + 2];
};
#define I2C_RDRW_IOCTL_MAX_MSGS 42
#define I2C_MAX_REGS 256
/* Smbus_access read or write markers. */
#define I2C_SMBUS_READ 1
#define I2C_SMBUS_WRITE 0
/* SMBus transaction types (size parameter in the below functions). */
#define I2C_SMBUS_QUICK 0
#define I2C_SMBUS_BYTE 1
#define I2C_SMBUS_BYTE_DATA 2
#define I2C_SMBUS_WORD_DATA 3
#define I2C_SMBUS_PROC_CALL 4
#define I2C_SMBUS_BLOCK_DATA 5
#define I2C_SMBUS_I2C_BLOCK_BROKEN 6
#define I2C_SMBUS_BLOCK_PROC_CALL 7
#define I2C_SMBUS_I2C_BLOCK_DATA 8
#define DETECT_MODE_AUTO 0
#define DETECT_MODE_QUICK 1
#define DETECT_MODE_READ 2
/* Defines to determine what functionality is present. */
#define I2C_FUNC_I2C 0x00000001
#define I2C_FUNC_10BIT_ADDR 0x00000002
#define I2C_FUNC_PROTOCOL_MANGLING 0x00000004
#define I2C_FUNC_SMBUS_PEC 0x00000008
#define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000
#define I2C_FUNC_SMBUS_QUICK 0x00010000
#define I2C_FUNC_SMBUS_READ_BYTE 0x00020000
#define I2C_FUNC_SMBUS_WRITE_BYTE 0x00040000
#define I2C_FUNC_SMBUS_READ_BYTE_DATA 0x00080000
#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA 0x00100000
#define I2C_FUNC_SMBUS_READ_WORD_DATA 0x00200000
#define I2C_FUNC_SMBUS_WRITE_WORD_DATA 0x00400000
#define I2C_FUNC_SMBUS_PROC_CALL 0x00800000
#define I2C_FUNC_SMBUS_READ_BLOCK_DATA 0x01000000
#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000
#define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000
#define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000
#define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \
I2C_FUNC_SMBUS_WRITE_BYTE)
#define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \
I2C_FUNC_SMBUS_WRITE_BYTE_DATA)
#define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \
I2C_FUNC_SMBUS_WRITE_WORD_DATA)
#define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \
I2C_FUNC_SMBUS_WRITE_BLOCK_DATA)
#define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \
I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)
/*
* This is needed for ioctl_or_perror_and_die() since it only accepts pointers.
*/