i2c_bus.h File Reference

#include <stddef.h>
#include <stdint.h>
#include <device/i2c.h>
#include <device/device.h>

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Data Structures
struct	i2c_bus_operations

Functions
struct bus *	i2c_link (const struct device *dev)
static DEVTREE_CONST struct device *	i2c_busdev (const struct device *dev)
int	i2c_dev_readb (struct device *)
int	i2c_dev_writeb (struct device *, uint8_t val)
int	i2c_dev_readb_at (struct device *, uint8_t off)
int	i2c_dev_writeb_at (struct device *, uint8_t off, uint8_t val)
int	i2c_dev_read_at16 (struct device *, uint8_t *buf, size_t len, uint16_t off)

Function Documentation

i2c_busdev()

static DEVTREE_CONST struct device* i2c_busdev ( const struct device *  dev )

inlinestatic

Definition at line 31 of file i2c_bus.h.

References bus::dev, i2c_link(), and NULL.

Referenced by i2c_dev_read_at16(), i2c_dev_readb(), i2c_dev_readb_at(), i2c_dev_writeb(), and i2c_dev_writeb_at().

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i2c_dev_read_at16()

int i2c_dev_read_at16	(	struct device *	dev,
		uint8_t *	buf,
		size_t	len,
		uint16_t	off
	)

Definition at line 144 of file i2c_bus.c.

References ARRAY_SIZE, BIOS_ERR, buf, dev_path(), i2c_path::device, i2c_msg::flags, device_path::i2c, i2c_busdev(), I2C_M_RD, i2c_msg::len, device::ops, device_operations::ops_i2c_bus, device::path, printk, i2c_bus_operations::transfer, and write_be16().

Referenced by eeprom_read_string().

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i2c_dev_readb()

int i2c_dev_readb

(

struct device *

dev

)

Definition at line 34 of file i2c_bus.c.

References BIOS_ERR, dev_path(), i2c_path::device, i2c_msg::flags, device_path::i2c, i2c_busdev(), I2C_M_RD, device::ops, device_operations::ops_i2c_bus, device_operations::ops_smbus_bus, device::path, printk, smbus_bus_operations::recv_byte, i2c_bus_operations::transfer, and val.

Referenced by smbus_recv_byte().

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i2c_dev_readb_at()

int i2c_dev_readb_at	(	struct device *	dev,
		uint8_t	off
	)

Definition at line 84 of file i2c_bus.c.

References ARRAY_SIZE, BIOS_ERR, dev_path(), i2c_path::device, i2c_msg::flags, device_path::i2c, i2c_busdev(), I2C_M_RD, device::ops, device_operations::ops_i2c_bus, device_operations::ops_smbus_bus, device::path, printk, smbus_bus_operations::read_byte, i2c_bus_operations::transfer, and val.

Referenced by lm96000_read(), lm96000_update(), nct7802y_update(), pca9538_read_input(), ptn3460_init(), rx6110sa_read(), and smbus_read_byte().

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i2c_dev_writeb()

int i2c_dev_writeb	(	struct device *	dev,
		uint8_t	val
	)

Definition at line 62 of file i2c_bus.c.

References BIOS_ERR, dev_path(), i2c_path::device, i2c_msg::flags, device_path::i2c, i2c_busdev(), device::ops, device_operations::ops_i2c_bus, device_operations::ops_smbus_bus, device::path, printk, smbus_bus_operations::send_byte, i2c_bus_operations::transfer, and val.

Referenced by smbus_send_byte().

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i2c_dev_writeb_at()

int i2c_dev_writeb_at	(	struct device *	dev,
		uint8_t	off,
		uint8_t	val
	)

Definition at line 121 of file i2c_bus.c.

References BIOS_ERR, buf, dev_path(), i2c_path::device, i2c_msg::flags, device_path::i2c, i2c_busdev(), device::ops, device_operations::ops_i2c_bus, device_operations::ops_smbus_bus, device::path, printk, i2c_bus_operations::transfer, val, and smbus_bus_operations::write_byte.

Referenced by lm96000_update(), lm96000_write(), nct7802y_select_bank(), nct7802y_update(), nct7802y_write(), pca9538_init(), pca9538_set_output(), ptn3460_init(), ptn3460_write_edid(), ptn_select_edid(), rx6110sa_write(), and smbus_write_byte().

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i2c_link()

struct bus* i2c_link

(

const struct device *

dev

)

Definition at line 9 of file i2c_bus.c.

References BIOS_ALERT, device::bus, bus::dev, dev_path(), NULL, device::ops, device_operations::ops_i2c_bus, device_operations::ops_smbus_bus, and printk.

Referenced by get_pbus_smbus(), and i2c_busdev().

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