i2c-mxs.c File Reference

#include <linux/slab.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/completion.h>
#include <linux/platform_device.h>
#include <linux/jiffies.h>
#include <linux/io.h>
#include <linux/pinctrl/consumer.h>
#include <linux/stmp_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_i2c.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
#include <linux/fsl/mxs-dma.h>

Go to the source code of this file.

Data Structures
struct	mxs_i2c_speed_config
struct	mxs_i2c_dev

Macros
#define	DRIVER_NAME   "mxs-i2c"
#define	MXS_I2C_CTRL0   (0x00)
#define	MXS_I2C_CTRL0_SET   (0x04)
#define	MXS_I2C_CTRL0_SFTRST   0x80000000
#define	MXS_I2C_CTRL0_SEND_NAK_ON_LAST   0x02000000
#define	MXS_I2C_CTRL0_RETAIN_CLOCK   0x00200000
#define	MXS_I2C_CTRL0_POST_SEND_STOP   0x00100000
#define	MXS_I2C_CTRL0_PRE_SEND_START   0x00080000
#define	MXS_I2C_CTRL0_MASTER_MODE   0x00020000
#define	MXS_I2C_CTRL0_DIRECTION   0x00010000
#define	MXS_I2C_CTRL0_XFER_COUNT(v)   ((v) & 0x0000FFFF)
#define	MXS_I2C_TIMING0   (0x10)
#define	MXS_I2C_TIMING1   (0x20)
#define	MXS_I2C_TIMING2   (0x30)
#define	MXS_I2C_CTRL1   (0x40)
#define	MXS_I2C_CTRL1_SET   (0x44)
#define	MXS_I2C_CTRL1_CLR   (0x48)
#define	MXS_I2C_CTRL1_BUS_FREE_IRQ   0x80
#define	MXS_I2C_CTRL1_DATA_ENGINE_CMPLT_IRQ   0x40
#define	MXS_I2C_CTRL1_NO_SLAVE_ACK_IRQ   0x20
#define	MXS_I2C_CTRL1_OVERSIZE_XFER_TERM_IRQ   0x10
#define	MXS_I2C_CTRL1_EARLY_TERM_IRQ   0x08
#define	MXS_I2C_CTRL1_MASTER_LOSS_IRQ   0x04
#define	MXS_I2C_CTRL1_SLAVE_STOP_IRQ   0x02
#define	MXS_I2C_CTRL1_SLAVE_IRQ   0x01
#define	MXS_I2C_IRQ_MASK
#define	MXS_CMD_I2C_SELECT
#define	MXS_CMD_I2C_WRITE
#define	MXS_CMD_I2C_READ

Functions
	MODULE_DEVICE_TABLE (of, mxs_i2c_dt_ids)
	subsys_initcall (mxs_i2c_init)
	module_exit (mxs_i2c_exit)
	MODULE_AUTHOR ("Wolfram Sang <[email protected]>")
	MODULE_DESCRIPTION ("MXS I2C Bus Driver")
	MODULE_LICENSE ("GPL")
	MODULE_ALIAS ("platform:"DRIVER_NAME)

Macro Definition Documentation

#define DRIVER_NAME   "mxs-i2c"

Definition at line 36 of file i2c-mxs.c.

#define MXS_CMD_I2C_READ

Value:

(MXS_I2C_CTRL0_SEND_NAK_ON_LAST | \
                 MXS_I2C_CTRL0_MASTER_MODE)

Definition at line 85 of file i2c-mxs.c.

#define MXS_CMD_I2C_SELECT

Value:

(MXS_I2C_CTRL0_RETAIN_CLOCK |   \
                 MXS_I2C_CTRL0_PRE_SEND_START | \
                 MXS_I2C_CTRL0_MASTER_MODE |    \
                 MXS_I2C_CTRL0_DIRECTION |  \
                 MXS_I2C_CTRL0_XFER_COUNT(1))

Definition at line 75 of file i2c-mxs.c.

#define MXS_CMD_I2C_WRITE

Value:

(MXS_I2C_CTRL0_PRE_SEND_START | \
                 MXS_I2C_CTRL0_MASTER_MODE |    \
                 MXS_I2C_CTRL0_DIRECTION)

Definition at line 81 of file i2c-mxs.c.

#define MXS_I2C_CTRL0   (0x00)

Definition at line 38 of file i2c-mxs.c.

#define MXS_I2C_CTRL0_DIRECTION   0x00010000

Definition at line 47 of file i2c-mxs.c.

#define MXS_I2C_CTRL0_MASTER_MODE   0x00020000

Definition at line 46 of file i2c-mxs.c.

#define MXS_I2C_CTRL0_POST_SEND_STOP   0x00100000

Definition at line 44 of file i2c-mxs.c.

#define MXS_I2C_CTRL0_PRE_SEND_START   0x00080000

Definition at line 45 of file i2c-mxs.c.

#define MXS_I2C_CTRL0_RETAIN_CLOCK   0x00200000

Definition at line 43 of file i2c-mxs.c.

#define MXS_I2C_CTRL0_SEND_NAK_ON_LAST   0x02000000

Definition at line 42 of file i2c-mxs.c.

#define MXS_I2C_CTRL0_SET   (0x04)

Definition at line 39 of file i2c-mxs.c.

#define MXS_I2C_CTRL0_SFTRST   0x80000000

Definition at line 41 of file i2c-mxs.c.

#define MXS_I2C_CTRL0_XFER_COUNT

(

v

)

((v) & 0x0000FFFF)

Definition at line 48 of file i2c-mxs.c.

#define MXS_I2C_CTRL1   (0x40)

Definition at line 54 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_BUS_FREE_IRQ   0x80

Definition at line 58 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_CLR   (0x48)

Definition at line 56 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_DATA_ENGINE_CMPLT_IRQ   0x40

Definition at line 59 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_EARLY_TERM_IRQ   0x08

Definition at line 62 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_MASTER_LOSS_IRQ   0x04

Definition at line 63 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_NO_SLAVE_ACK_IRQ   0x20

Definition at line 60 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_OVERSIZE_XFER_TERM_IRQ   0x10

Definition at line 61 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_SET   (0x44)

Definition at line 55 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_SLAVE_IRQ   0x01

Definition at line 65 of file i2c-mxs.c.

#define MXS_I2C_CTRL1_SLAVE_STOP_IRQ   0x02

Definition at line 64 of file i2c-mxs.c.

#define MXS_I2C_IRQ_MASK

Value:

(MXS_I2C_CTRL1_DATA_ENGINE_CMPLT_IRQ | \
                 MXS_I2C_CTRL1_NO_SLAVE_ACK_IRQ | \
                 MXS_I2C_CTRL1_EARLY_TERM_IRQ | \
                 MXS_I2C_CTRL1_MASTER_LOSS_IRQ | \
                 MXS_I2C_CTRL1_SLAVE_STOP_IRQ | \
                 MXS_I2C_CTRL1_SLAVE_IRQ)

Definition at line 67 of file i2c-mxs.c.

#define MXS_I2C_TIMING0   (0x10)

Definition at line 50 of file i2c-mxs.c.

#define MXS_I2C_TIMING1   (0x20)

Definition at line 51 of file i2c-mxs.c.

#define MXS_I2C_TIMING2   (0x30)

Definition at line 52 of file i2c-mxs.c.

Function Documentation

MODULE_ALIAS

(

"platform:"

DRIVER_NAME

)

MODULE_AUTHOR

(

"Wolfram Sang <[email protected]>"

)

MODULE_DESCRIPTION

(

"MXS I2C Bus Driver"

)

MODULE_DEVICE_TABLE	(	of	,
		mxs_i2c_dt_ids
	)

module_exit

(

mxs_i2c_exit

)

MODULE_LICENSE

(

"GPL"

)

subsys_initcall

(

mxs_i2c_init

)