diff options
Diffstat (limited to 'miscutils/i2c_tools.c')
| -rw-r--r-- | miscutils/i2c_tools.c | 102 |
1 files changed, 2 insertions, 100 deletions
diff --git a/miscutils/i2c_tools.c b/miscutils/i2c_tools.c index 38d90ff10..b78860277 100644 --- a/miscutils/i2c_tools.c +++ b/miscutils/i2c_tools.c @@ -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 - */ - -/* - * 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; -}; +#include <linux/i2c.h> +#include <linux/i2c-dev.h> -/* 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. */ |