#include <linux/clk.h>
#include <linux/completion.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_i2c.h>
#include <linux/platform_device.h>
#include <linux/slab.h>

Data Structures
struct	at91_twi_pdata

struct	at91_twi_dev

Macros
#define	TWI_CLK_HZ 100000 /* max 400 Kbits/s */

#define	AT91_I2C_TIMEOUT msecs_to_jiffies(100) /* transfer timeout */

#define	AT91_TWI_CR 0x0000 /* Control Register */

#define	AT91_TWI_START 0x0001 /* Send a Start Condition */

#define	AT91_TWI_STOP 0x0002 /* Send a Stop Condition */

#define	AT91_TWI_MSEN 0x0004 /* Master Transfer Enable */

#define	AT91_TWI_SVDIS 0x0020 /* Slave Transfer Disable */

#define	AT91_TWI_QUICK 0x0040 /* SMBus quick command */

#define	AT91_TWI_SWRST 0x0080 /* Software Reset */

#define	AT91_TWI_MMR 0x0004 /* Master Mode Register */

#define	AT91_TWI_IADRSZ_1 0x0100 /* Internal Device Address Size */

#define	AT91_TWI_MREAD 0x1000 /* Master Read Direction */

#define	AT91_TWI_IADR 0x000c /* Internal Address Register */

#define	AT91_TWI_CWGR 0x0010 /* Clock Waveform Generator Reg */

#define	AT91_TWI_SR 0x0020 /* Status Register */

#define	AT91_TWI_TXCOMP 0x0001 /* Transmission Complete */

#define	AT91_TWI_RXRDY 0x0002 /* Receive Holding Register Ready */

#define	AT91_TWI_TXRDY 0x0004 /* Transmit Holding Register Ready */

#define	AT91_TWI_OVRE 0x0040 /* Overrun Error */

#define	AT91_TWI_UNRE 0x0080 /* Underrun Error */

#define	AT91_TWI_NACK 0x0100 /* Not Acknowledged */

#define	AT91_TWI_IER 0x0024 /* Interrupt Enable Register */

#define	AT91_TWI_IDR 0x0028 /* Interrupt Disable Register */

#define	AT91_TWI_IMR 0x002c /* Interrupt Mask Register */

#define	AT91_TWI_RHR 0x0030 /* Receive Holding Register */

#define	AT91_TWI_THR 0x0034 /* Transmit Holding Register */

#define	atmel_twi_dt_ids NULL

#define	at91_twi_pm_ops NULL

Functions
	subsys_initcall (at91_twi_init)

	module_exit (at91_twi_exit)

	MODULE_AUTHOR ("Nikolaus Voss <[email protected]>")

	MODULE_DESCRIPTION ("I2C (TWI) driver for Atmel AT91")

	MODULE_LICENSE ("GPL")

	MODULE_ALIAS ("platform:at91_i2c")

Macro Definition Documentation

#define AT91_I2C_TIMEOUT msecs_to_jiffies(100) /* transfer timeout */

Definition at line 34 of file i2c-at91.c.

#define AT91_TWI_CR 0x0000 /* Control Register */

Definition at line 37 of file i2c-at91.c.

#define AT91_TWI_CWGR 0x0010 /* Clock Waveform Generator Reg */

Definition at line 51 of file i2c-at91.c.

#define AT91_TWI_IADR 0x000c /* Internal Address Register */

Definition at line 49 of file i2c-at91.c.

#define AT91_TWI_IADRSZ_1 0x0100 /* Internal Device Address Size */

Definition at line 46 of file i2c-at91.c.

#define AT91_TWI_IDR 0x0028 /* Interrupt Disable Register */

Definition at line 63 of file i2c-at91.c.

#define AT91_TWI_IER 0x0024 /* Interrupt Enable Register */

Definition at line 62 of file i2c-at91.c.

#define AT91_TWI_IMR 0x002c /* Interrupt Mask Register */

Definition at line 64 of file i2c-at91.c.

#define AT91_TWI_MMR 0x0004 /* Master Mode Register */

Definition at line 45 of file i2c-at91.c.

#define AT91_TWI_MREAD 0x1000 /* Master Read Direction */

Definition at line 47 of file i2c-at91.c.

#define AT91_TWI_MSEN 0x0004 /* Master Transfer Enable */

Definition at line 40 of file i2c-at91.c.

#define AT91_TWI_NACK 0x0100 /* Not Acknowledged */

Definition at line 60 of file i2c-at91.c.

#define AT91_TWI_OVRE 0x0040 /* Overrun Error */

Definition at line 58 of file i2c-at91.c.

#define at91_twi_pm_ops NULL

Definition at line 528 of file i2c-at91.c.

#define AT91_TWI_QUICK 0x0040 /* SMBus quick command */

Definition at line 42 of file i2c-at91.c.

#define AT91_TWI_RHR 0x0030 /* Receive Holding Register */

Definition at line 65 of file i2c-at91.c.

#define AT91_TWI_RXRDY 0x0002 /* Receive Holding Register Ready */

Definition at line 55 of file i2c-at91.c.

#define AT91_TWI_SR 0x0020 /* Status Register */

Definition at line 53 of file i2c-at91.c.

#define AT91_TWI_START 0x0001 /* Send a Start Condition */

Definition at line 38 of file i2c-at91.c.

#define AT91_TWI_STOP 0x0002 /* Send a Stop Condition */

Definition at line 39 of file i2c-at91.c.

#define AT91_TWI_SVDIS 0x0020 /* Slave Transfer Disable */

Definition at line 41 of file i2c-at91.c.

#define AT91_TWI_SWRST 0x0080 /* Software Reset */

Definition at line 43 of file i2c-at91.c.

#define AT91_TWI_THR 0x0034 /* Transmit Holding Register */

Definition at line 66 of file i2c-at91.c.

#define AT91_TWI_TXCOMP 0x0001 /* Transmission Complete */

Definition at line 54 of file i2c-at91.c.

#define AT91_TWI_TXRDY 0x0004 /* Transmit Holding Register Ready */

Definition at line 56 of file i2c-at91.c.

#define AT91_TWI_UNRE 0x0080 /* Underrun Error */

Definition at line 59 of file i2c-at91.c.

#define atmel_twi_dt_ids NULL

Definition at line 405 of file i2c-at91.c.

#define TWI_CLK_HZ 100000 /* max 400 Kbits/s */

Definition at line 33 of file i2c-at91.c.

Function Documentation

MODULE_ALIAS ( "platform:at91_i2c" )

MODULE_AUTHOR ( "Nikolaus Voss <[email protected]>" )

MODULE_DESCRIPTION ( "I2C (TWI) driver for Atmel AT91" )

module_exit ( at91_twi_exit )

MODULE_LICENSE ( "GPL" )

subsys_initcall ( at91_twi_init )

Data Structures

Macros

Functions

Macro Definition Documentation

Function Documentation