#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/i2c-tegra.h>
#include <linux/of_i2c.h>
#include <linux/of_device.h>
#include <linux/module.h>
#include <asm/unaligned.h>
#include <mach/clk.h>

Data Structures
struct	tegra_i2c_hw_feature

struct	tegra_i2c_dev

Macros
#define	TEGRA_I2C_TIMEOUT (msecs_to_jiffies(1000))

#define	BYTES_PER_FIFO_WORD 4

#define	I2C_CNFG 0x000

#define	I2C_CNFG_DEBOUNCE_CNT_SHIFT 12

#define	I2C_CNFG_PACKET_MODE_EN (1<<10)

#define	I2C_CNFG_NEW_MASTER_FSM (1<<11)

#define	I2C_STATUS 0x01C

#define	I2C_SL_CNFG 0x020

#define	I2C_SL_CNFG_NACK (1<<1)

#define	I2C_SL_CNFG_NEWSL (1<<2)

#define	I2C_SL_ADDR1 0x02c

#define	I2C_SL_ADDR2 0x030

#define	I2C_TX_FIFO 0x050

#define	I2C_RX_FIFO 0x054

#define	I2C_PACKET_TRANSFER_STATUS 0x058

#define	I2C_FIFO_CONTROL 0x05c

#define	I2C_FIFO_CONTROL_TX_FLUSH (1<<1)

#define	I2C_FIFO_CONTROL_RX_FLUSH (1<<0)

#define	I2C_FIFO_CONTROL_TX_TRIG_SHIFT 5

#define	I2C_FIFO_CONTROL_RX_TRIG_SHIFT 2

#define	I2C_FIFO_STATUS 0x060

#define	I2C_FIFO_STATUS_TX_MASK 0xF0

#define	I2C_FIFO_STATUS_TX_SHIFT 4

#define	I2C_FIFO_STATUS_RX_MASK 0x0F

#define	I2C_FIFO_STATUS_RX_SHIFT 0

#define	I2C_INT_MASK 0x064

#define	I2C_INT_STATUS 0x068

#define	I2C_INT_PACKET_XFER_COMPLETE (1<<7)

#define	I2C_INT_ALL_PACKETS_XFER_COMPLETE (1<<6)

#define	I2C_INT_TX_FIFO_OVERFLOW (1<<5)

#define	I2C_INT_RX_FIFO_UNDERFLOW (1<<4)

#define	I2C_INT_NO_ACK (1<<3)

#define	I2C_INT_ARBITRATION_LOST (1<<2)

#define	I2C_INT_TX_FIFO_DATA_REQ (1<<1)

#define	I2C_INT_RX_FIFO_DATA_REQ (1<<0)

#define	I2C_CLK_DIVISOR 0x06c

#define	DVC_CTRL_REG1 0x000

#define	DVC_CTRL_REG1_INTR_EN (1<<10)

#define	DVC_CTRL_REG2 0x004

#define	DVC_CTRL_REG3 0x008

#define	DVC_CTRL_REG3_SW_PROG (1<<26)

#define	DVC_CTRL_REG3_I2C_DONE_INTR_EN (1<<30)

#define	DVC_STATUS 0x00c

#define	DVC_STATUS_I2C_DONE_INTR (1<<30)

#define	I2C_ERR_NONE 0x00

#define	I2C_ERR_NO_ACK 0x01

#define	I2C_ERR_ARBITRATION_LOST 0x02

#define	I2C_ERR_UNKNOWN_INTERRUPT 0x04

#define	PACKET_HEADER0_HEADER_SIZE_SHIFT 28

#define	PACKET_HEADER0_PACKET_ID_SHIFT 16

#define	PACKET_HEADER0_CONT_ID_SHIFT 12

#define	PACKET_HEADER0_PROTOCOL_I2C (1<<4)

#define	I2C_HEADER_HIGHSPEED_MODE (1<<22)

#define	I2C_HEADER_CONT_ON_NAK (1<<21)

#define	I2C_HEADER_SEND_START_BYTE (1<<20)

#define	I2C_HEADER_READ (1<<19)

#define	I2C_HEADER_10BIT_ADDR (1<<18)

#define	I2C_HEADER_IE_ENABLE (1<<17)

#define	I2C_HEADER_REPEAT_START (1<<16)

#define	I2C_HEADER_CONTINUE_XFER (1<<15)

#define	I2C_HEADER_MASTER_ADDR_SHIFT 12

#define	I2C_HEADER_SLAVE_ADDR_SHIFT 1

#define	TEGRA_I2C_PM NULL

Enumerations
enum	msg_end_type { MSG_END_STOP, MSG_END_REPEAT_START, MSG_END_CONTINUE }

Functions
	subsys_initcall (tegra_i2c_init_driver)

	module_exit (tegra_i2c_exit_driver)

	MODULE_DESCRIPTION ("nVidia Tegra2 I2C Bus Controller driver")

	MODULE_AUTHOR ("Colin Cross")

	MODULE_LICENSE ("GPL v2")

Macro Definition Documentation

#define BYTES_PER_FIFO_WORD 4

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

#define DVC_CTRL_REG1 0x000

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

#define DVC_CTRL_REG1_INTR_EN (1<<10)

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

#define DVC_CTRL_REG2 0x004

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

#define DVC_CTRL_REG3 0x008

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

#define DVC_CTRL_REG3_I2C_DONE_INTR_EN (1<<30)

Definition at line 80 of file i2c-tegra.c.

#define DVC_CTRL_REG3_SW_PROG (1<<26)

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

#define DVC_STATUS 0x00c

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

#define DVC_STATUS_I2C_DONE_INTR (1<<30)

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

#define I2C_CLK_DIVISOR 0x06c

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

#define I2C_CNFG 0x000

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

#define I2C_CNFG_DEBOUNCE_CNT_SHIFT 12

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

#define I2C_CNFG_NEW_MASTER_FSM (1<<11)

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

#define I2C_CNFG_PACKET_MODE_EN (1<<10)

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

#define I2C_ERR_ARBITRATION_LOST 0x02

Definition at line 86 of file i2c-tegra.c.

#define I2C_ERR_NO_ACK 0x01

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

#define I2C_ERR_NONE 0x00

Definition at line 84 of file i2c-tegra.c.

#define I2C_ERR_UNKNOWN_INTERRUPT 0x04

Definition at line 87 of file i2c-tegra.c.

#define I2C_FIFO_CONTROL 0x05c

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

#define I2C_FIFO_CONTROL_RX_FLUSH (1<<0)

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

#define I2C_FIFO_CONTROL_RX_TRIG_SHIFT 2

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

#define I2C_FIFO_CONTROL_TX_FLUSH (1<<1)

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

#define I2C_FIFO_CONTROL_TX_TRIG_SHIFT 5

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

#define I2C_FIFO_STATUS 0x060

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

#define I2C_FIFO_STATUS_RX_MASK 0x0F

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

#define I2C_FIFO_STATUS_RX_SHIFT 0

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

#define I2C_FIFO_STATUS_TX_MASK 0xF0

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

#define I2C_FIFO_STATUS_TX_SHIFT 4

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

#define I2C_HEADER_10BIT_ADDR (1<<18)

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

#define I2C_HEADER_CONT_ON_NAK (1<<21)

Definition at line 95 of file i2c-tegra.c.

#define I2C_HEADER_CONTINUE_XFER (1<<15)

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

#define I2C_HEADER_HIGHSPEED_MODE (1<<22)

Definition at line 94 of file i2c-tegra.c.

#define I2C_HEADER_IE_ENABLE (1<<17)

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

#define I2C_HEADER_MASTER_ADDR_SHIFT 12

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

#define I2C_HEADER_READ (1<<19)

Definition at line 97 of file i2c-tegra.c.

#define I2C_HEADER_REPEAT_START (1<<16)

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

#define I2C_HEADER_SEND_START_BYTE (1<<20)

Definition at line 96 of file i2c-tegra.c.

#define I2C_HEADER_SLAVE_ADDR_SHIFT 1

Definition at line 103 of file i2c-tegra.c.

#define I2C_INT_ALL_PACKETS_XFER_COMPLETE (1<<6)

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

#define I2C_INT_ARBITRATION_LOST (1<<2)

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

#define I2C_INT_MASK 0x064

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

#define I2C_INT_NO_ACK (1<<3)

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

#define I2C_INT_PACKET_XFER_COMPLETE (1<<7)

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

#define I2C_INT_RX_FIFO_DATA_REQ (1<<0)

Definition at line 72 of file i2c-tegra.c.

#define I2C_INT_RX_FIFO_UNDERFLOW (1<<4)

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

#define I2C_INT_STATUS 0x068

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

#define I2C_INT_TX_FIFO_DATA_REQ (1<<1)

Definition at line 71 of file i2c-tegra.c.

#define I2C_INT_TX_FIFO_OVERFLOW (1<<5)

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

#define I2C_PACKET_TRANSFER_STATUS 0x058

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

#define I2C_RX_FIFO 0x054

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

#define I2C_SL_ADDR1 0x02c

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

#define I2C_SL_ADDR2 0x030

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

#define I2C_SL_CNFG 0x020

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

#define I2C_SL_CNFG_NACK (1<<1)

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

#define I2C_SL_CNFG_NEWSL (1<<2)

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

#define I2C_STATUS 0x01C

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

#define I2C_TX_FIFO 0x050

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

#define PACKET_HEADER0_CONT_ID_SHIFT 12

Definition at line 91 of file i2c-tegra.c.

#define PACKET_HEADER0_HEADER_SIZE_SHIFT 28

Definition at line 89 of file i2c-tegra.c.

#define PACKET_HEADER0_PACKET_ID_SHIFT 16

Definition at line 90 of file i2c-tegra.c.

#define PACKET_HEADER0_PROTOCOL_I2C (1<<4)

Definition at line 92 of file i2c-tegra.c.

#define TEGRA_I2C_PM NULL

Definition at line 815 of file i2c-tegra.c.

#define TEGRA_I2C_TIMEOUT (msecs_to_jiffies(1000))

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

Enumeration Type Documentation

enum msg_end_type

Enumerator:

MSG_END_STOP
MSG_END_REPEAT_START
MSG_END_CONTINUE

Definition at line 111 of file i2c-tegra.c.

Function Documentation

MODULE_AUTHOR ( "Colin Cross" )

MODULE_DESCRIPTION ( "nVidia Tegra2 I2C Bus Controller driver" )

module_exit ( tegra_i2c_exit_driver )

MODULE_LICENSE ( "GPL v2" )

subsys_initcall ( tegra_i2c_init_driver )

Data Structures

Macros

Enumerations

Functions

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation