#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/i2c/i2c-rcar.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/spinlock.h>

Data Structures
struct	rcar_i2c_priv

Macros
#define	ICSCR 0x00 /* slave ctrl */

#define	ICMCR 0x04 /* master ctrl */

#define	ICSSR 0x08 /* slave status */

#define	ICMSR 0x0C /* master status */

#define	ICSIER 0x10 /* slave irq enable */

#define	ICMIER 0x14 /* master irq enable */

#define	ICCCR 0x18 /* clock dividers */

#define	ICSAR 0x1C /* slave address */

#define	ICMAR 0x20 /* master address */

#define	ICRXTX 0x24 /* data port */

#define	MDBS (1 << 7) /* non-fifo mode switch */

#define	FSCL (1 << 6) /* override SCL pin */

#define	FSDA (1 << 5) /* override SDA pin */

#define	OBPC (1 << 4) /* override pins */

#define	MIE (1 << 3) /* master if enable */

#define	TSBE (1 << 2)

#define	FSB (1 << 1) /* force stop bit */

#define	ESG (1 << 0) /* en startbit gen */

#define	MNR (1 << 6) /* nack received */

#define	MAL (1 << 5) /* arbitration lost */

#define	MST (1 << 4) /* sent a stop */

#define	MDE (1 << 3)

#define	MDT (1 << 2)

#define	MDR (1 << 1)

#define	MAT (1 << 0) /* slave addr xfer done */

#define	MNRE (1 << 6) /* nack irq en */

#define	MALE (1 << 5) /* arblos irq en */

#define	MSTE (1 << 4) /* stop irq en */

#define	MDEE (1 << 3)

#define	MDTE (1 << 2)

#define	MDRE (1 << 1)

#define	MATE (1 << 0) /* address sent irq en */

#define	ID_LAST_MSG (1 << 0)

#define	ID_IOERROR (1 << 1)

#define	ID_DONE (1 << 2)

#define	ID_ARBLOST (1 << 3)

#define	ID_NACK (1 << 4)

#define	rcar_i2c_priv_to_dev(p) ((p)->adap.dev.parent)

#define	rcar_i2c_is_recv(p) ((p)->msg->flags & I2C_M_RD)

#define	rcar_i2c_flags_set(p, f) ((p)->flags \|= (f))

#define	rcar_i2c_flags_has(p, f) ((p)->flags & (f))

#define	LOOP_TIMEOUT 1024

#define	rcar_i2c_status_clear(priv) rcar_i2c_status_bit_clear(priv, 0xffffffff)

#define	rcar_i2c_send_restart(priv) rcar_i2c_status_bit_clear(priv, (MAT \| MDE))

#define	rcar_i2c_recv_restart(priv) rcar_i2c_status_bit_clear(priv, (MAT \| MDR))

Enumerations
enum	{ RCAR_BUS_PHASE_ADDR, RCAR_BUS_PHASE_DATA, RCAR_BUS_PHASE_STOP }

enum	{ RCAR_IRQ_CLOSE, RCAR_IRQ_OPEN_FOR_SEND, RCAR_IRQ_OPEN_FOR_RECV, RCAR_IRQ_OPEN_FOR_STOP }

Functions
	module_platform_driver (rcar_i2c_drv)

	MODULE_LICENSE ("GPL")

	MODULE_DESCRIPTION ("Renesas R-Car I2C bus driver")

	MODULE_AUTHOR ("Kuninori Morimoto <[email protected]>")

Macro Definition Documentation

#define ESG (1 << 0) /* en startbit gen */

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

#define FSB (1 << 1) /* force stop bit */

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

#define FSCL (1 << 6) /* override SCL pin */

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

#define FSDA (1 << 5) /* override SDA pin */

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

#define ICCCR 0x18 /* clock dividers */

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

#define ICMAR 0x20 /* master address */

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

#define ICMCR 0x04 /* master ctrl */

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

#define ICMIER 0x14 /* master irq enable */

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

#define ICMSR 0x0C /* master status */

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

#define ICRXTX 0x24 /* data port */

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

#define ICSAR 0x1C /* slave address */

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

#define ICSCR 0x00 /* slave ctrl */

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

#define ICSIER 0x10 /* slave irq enable */

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

#define ICSSR 0x08 /* slave status */

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

#define ID_ARBLOST (1 << 3)

Definition at line 101 of file i2c-rcar.c.

#define ID_DONE (1 << 2)

Definition at line 100 of file i2c-rcar.c.

#define ID_IOERROR (1 << 1)

Definition at line 99 of file i2c-rcar.c.

#define ID_LAST_MSG (1 << 0)

Definition at line 98 of file i2c-rcar.c.

#define ID_NACK (1 << 4)

Definition at line 102 of file i2c-rcar.c.

#define LOOP_TIMEOUT 1024

Definition at line 124 of file i2c-rcar.c.

#define MAL (1 << 5) /* arbitration lost */

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

#define MALE (1 << 5) /* arblos irq en */

Definition at line 74 of file i2c-rcar.c.

#define MAT (1 << 0) /* slave addr xfer done */

Definition at line 70 of file i2c-rcar.c.

#define MATE (1 << 0) /* address sent irq en */

Definition at line 79 of file i2c-rcar.c.

#define MDBS (1 << 7) /* non-fifo mode switch */

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

#define MDE (1 << 3)

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

#define MDEE (1 << 3)

Definition at line 76 of file i2c-rcar.c.

#define MDR (1 << 1)

Definition at line 69 of file i2c-rcar.c.

#define MDRE (1 << 1)

Definition at line 78 of file i2c-rcar.c.

#define MDT (1 << 2)

Definition at line 68 of file i2c-rcar.c.

#define MDTE (1 << 2)

Definition at line 77 of file i2c-rcar.c.

#define MIE (1 << 3) /* master if enable */

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

#define MNR (1 << 6) /* nack received */

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

#define MNRE (1 << 6) /* nack irq en */

Definition at line 73 of file i2c-rcar.c.

#define MST (1 << 4) /* sent a stop */

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

#define MSTE (1 << 4) /* stop irq en */

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

#define OBPC (1 << 4) /* override pins */

Definition at line 57 of file i2c-rcar.c.

#define rcar_i2c_flags_has	(	p,
		f
	)	((p)->flags & (f))

Definition at line 122 of file i2c-rcar.c.

#define rcar_i2c_flags_set	(	p,
		f
	)	((p)->flags \|= (f))

Definition at line 121 of file i2c-rcar.c.

#define rcar_i2c_is_recv ( p ) ((p)->msg->flags & I2C_M_RD)

Definition at line 119 of file i2c-rcar.c.

#define rcar_i2c_priv_to_dev ( p ) ((p)->adap.dev.parent)

Definition at line 118 of file i2c-rcar.c.

#define rcar_i2c_recv_restart ( priv ) rcar_i2c_status_bit_clear(priv, (MAT | MDR))

Definition at line 347 of file i2c-rcar.c.

#define rcar_i2c_send_restart ( priv ) rcar_i2c_status_bit_clear(priv, (MAT | MDE))

Definition at line 346 of file i2c-rcar.c.

#define rcar_i2c_status_clear ( priv ) rcar_i2c_status_bit_clear(priv, 0xffffffff)

Definition at line 308 of file i2c-rcar.c.

#define TSBE (1 << 2)

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

Enumeration Type Documentation

anonymous enum

Enumerator:

RCAR_BUS_PHASE_ADDR
RCAR_BUS_PHASE_DATA
RCAR_BUS_PHASE_STOP

Definition at line 82 of file i2c-rcar.c.

anonymous enum

Enumerator:

RCAR_IRQ_CLOSE
RCAR_IRQ_OPEN_FOR_SEND
RCAR_IRQ_OPEN_FOR_RECV
RCAR_IRQ_OPEN_FOR_STOP

Definition at line 88 of file i2c-rcar.c.

Function Documentation

MODULE_AUTHOR ( "Kuninori Morimoto <[email protected]>" )

MODULE_DESCRIPTION ( "Renesas R-Car I2C bus driver" )

MODULE_LICENSE ( "GPL" )

module_platform_driver ( rcar_i2c_drv )

Data Structures

Macros

Enumerations

Functions

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation