I2C support API. More...

#include <rtems.h>
#include <bsp/lpc32xx.h>

Macros
I2C Clock Control Register (I2CCLK_CTRL)
#define	I2CCLK_1_EN BSP_BIT32(0)

#define	I2CCLK_2_EN BSP_BIT32(1)

#define	I2CCLK_1_HIGH_DRIVE BSP_BIT32(2)

#define	I2CCLK_2_HIGH_DRIVE BSP_BIT32(3)

#define	I2CCLK_USB_HIGH_DRIVE BSP_BIT32(4)

I2C TX Data FIFO Register (I2Cn_TX)
#define	I2C_TX_READ BSP_BIT32(0)

#define	I2C_TX_ADDR(val) BSP_FLD32(val, 1, 7)

#define	I2C_TX_START BSP_BIT32(8)

#define	I2C_TX_STOP BSP_BIT32(9)

I2C Status Register (I2Cn_STAT)
#define	I2C_STAT_TDI BSP_BIT32(0)

#define	I2C_STAT_AFI BSP_BIT32(1)

#define	I2C_STAT_NAI BSP_BIT32(2)

#define	I2C_STAT_DRMI BSP_BIT32(3)

#define	I2C_STAT_DRSI BSP_BIT32(4)

#define	I2C_STAT_ACTIVE BSP_BIT32(5)

#define	I2C_STAT_SCL BSP_BIT32(6)

#define	I2C_STAT_SDA BSP_BIT32(7)

#define	I2C_STAT_RFF BSP_BIT32(8)

#define	I2C_STAT_RFE BSP_BIT32(9)

#define	I2C_STAT_TFF BSP_BIT32(10)

#define	I2C_STAT_TFE BSP_BIT32(11)

#define	I2C_STAT_TFFS BSP_BIT32(12)

#define	I2C_STAT_TFES BSP_BIT32(13)

I2C Control Register (I2Cn_CTRL)
#define	I2C_CTRL_TDIE BSP_BIT32(0)

#define	I2C_CTRL_AFIE BSP_BIT32(1)

#define	I2C_CTRL_NAIE BSP_BIT32(2)

#define	I2C_CTRL_DRMIE BSP_BIT32(3)

#define	I2C_CTRL_DRSIE BSP_BIT32(4)

#define	I2C_CTRL_RFFIE BSP_BIT32(5)

#define	I2C_CTRL_RFDAIE BSP_BIT32(6)

#define	I2C_CTRL_TFFIO BSP_BIT32(7)

#define	I2C_CTRL_RESET BSP_BIT32(8)

#define	I2C_CTRL_SEVEN BSP_BIT32(9)

#define	I2C_CTRL_TFFSIE BSP_BIT32(10)

Functions
rtems_status_code	lpc32xx_i2c_init (volatile lpc32xx_i2c *i2c, unsigned clock_in_hz)
	Initializes the I2C module i2c. More...

void	lpc32xx_i2c_reset (volatile lpc32xx_i2c *i2c)
	Resets the I2C module i2c.

rtems_status_code	lpc32xx_i2c_clock (volatile lpc32xx_i2c *i2c, unsigned clock_in_hz)
	Sets the I2C module i2c clock. More...

rtems_status_code	lpc32xx_i2c_write_start (volatile lpc32xx_i2c *i2c, unsigned addr)
	Starts a write transaction on the I2C module i2c. More...

rtems_status_code	lpc32xx_i2c_write_with_optional_stop (volatile lpc32xx_i2c i2c, const uint8_t out, size_t n, bool stop)
	Writes data via the I2C module i2c with optional stop. More...

rtems_status_code	lpc32xx_i2c_read_start (volatile lpc32xx_i2c *i2c, unsigned addr)
	Starts a read transaction on the I2C module i2c. More...

rtems_status_code	lpc32xx_i2c_read_with_optional_stop (volatile lpc32xx_i2c i2c, uint8_t in, size_t n, bool stop)
	Reads data via the I2C module i2c with optional stop. More...

rtems_status_code	lpc32xx_i2c_write_and_read (volatile lpc32xx_i2c i2c, unsigned addr, const uint8_t out, size_t out_size, uint8_t *in, size_t in_size)
	Writes and reads data via the I2C module i2c. More...

Detailed Description

I2C support API.

Macros