#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/i2c.h>

Data Structures
struct	i2c_diolan_u2c

Macros
#define	DRIVER_NAME "i2c-diolan-u2c"

#define	USB_VENDOR_ID_DIOLAN 0x0abf

#define	USB_DEVICE_ID_DIOLAN_U2C 0x3370

#define	DIOLAN_OUT_EP 0x02

#define	DIOLAN_IN_EP 0x84

#define	CMD_I2C_READ 0x01

#define	CMD_I2C_WRITE 0x02

#define	CMD_I2C_SCAN 0x03 /* Returns list of detected devices */

#define	CMD_I2C_RELEASE_SDA 0x04

#define	CMD_I2C_RELEASE_SCL 0x05

#define	CMD_I2C_DROP_SDA 0x06

#define	CMD_I2C_DROP_SCL 0x07

#define	CMD_I2C_READ_SDA 0x08

#define	CMD_I2C_READ_SCL 0x09

#define	CMD_GET_FW_VERSION 0x0a

#define	CMD_GET_SERIAL 0x0b

#define	CMD_I2C_START 0x0c

#define	CMD_I2C_STOP 0x0d

#define	CMD_I2C_REPEATED_START 0x0e

#define	CMD_I2C_PUT_BYTE 0x0f

#define	CMD_I2C_GET_BYTE 0x10

#define	CMD_I2C_PUT_ACK 0x11

#define	CMD_I2C_GET_ACK 0x12

#define	CMD_I2C_PUT_BYTE_ACK 0x13

#define	CMD_I2C_GET_BYTE_ACK 0x14

#define	CMD_I2C_SET_SPEED 0x1b

#define	CMD_I2C_GET_SPEED 0x1c

#define	CMD_I2C_SET_CLK_SYNC 0x24

#define	CMD_I2C_GET_CLK_SYNC 0x25

#define	CMD_I2C_SET_CLK_SYNC_TO 0x26

#define	CMD_I2C_GET_CLK_SYNC_TO 0x27

#define	RESP_OK 0x00

#define	RESP_FAILED 0x01

#define	RESP_BAD_MEMADDR 0x04

#define	RESP_DATA_ERR 0x05

#define	RESP_NOT_IMPLEMENTED 0x06

#define	RESP_NACK 0x07

#define	RESP_TIMEOUT 0x09

#define	U2C_I2C_SPEED_FAST 0 /* 400 kHz */

#define	U2C_I2C_SPEED_STD 1 /* 100 kHz */

#define	U2C_I2C_SPEED_2KHZ 242 /* 2 kHz, minimum speed */

#define	U2C_I2C_SPEED(f) ((DIV_ROUND_UP(1000000, (f)) - 10) / 2 + 1)

#define	U2C_I2C_FREQ_FAST 400000

#define	U2C_I2C_FREQ_STD 100000

#define	U2C_I2C_FREQ(s) (1000000 / (2 * (s - 1) + 10))

#define	DIOLAN_USB_TIMEOUT 100 /* in ms */

#define	DIOLAN_SYNC_TIMEOUT 20 /* in ms */

#define	DIOLAN_OUTBUF_LEN 128

#define	DIOLAN_FLUSH_LEN (DIOLAN_OUTBUF_LEN - 4)

#define	DIOLAN_INBUF_LEN 256 /* Maximum supported receive length */

Functions
	module_param (frequency, uint, S_IRUGO\|S_IWUSR)

	MODULE_PARM_DESC (frequency,"I2C clock frequency in hertz")

	MODULE_DEVICE_TABLE (usb, diolan_u2c_table)

	module_usb_driver (diolan_u2c_driver)

	MODULE_AUTHOR ("Guenter Roeck <[email protected]>")

	MODULE_DESCRIPTION (DRIVER_NAME" driver")

	MODULE_LICENSE ("GPL")

Macro Definition Documentation

#define CMD_GET_FW_VERSION 0x0a

Definition at line 41 of file i2c-diolan-u2c.c.

#define CMD_GET_SERIAL 0x0b

Definition at line 42 of file i2c-diolan-u2c.c.

#define CMD_I2C_DROP_SCL 0x07

Definition at line 38 of file i2c-diolan-u2c.c.

#define CMD_I2C_DROP_SDA 0x06

Definition at line 37 of file i2c-diolan-u2c.c.

#define CMD_I2C_GET_ACK 0x12

Definition at line 49 of file i2c-diolan-u2c.c.

#define CMD_I2C_GET_BYTE 0x10

Definition at line 47 of file i2c-diolan-u2c.c.

#define CMD_I2C_GET_BYTE_ACK 0x14

Definition at line 51 of file i2c-diolan-u2c.c.

#define CMD_I2C_GET_CLK_SYNC 0x25

Definition at line 55 of file i2c-diolan-u2c.c.

#define CMD_I2C_GET_CLK_SYNC_TO 0x27

Definition at line 57 of file i2c-diolan-u2c.c.

#define CMD_I2C_GET_SPEED 0x1c

Definition at line 53 of file i2c-diolan-u2c.c.

#define CMD_I2C_PUT_ACK 0x11

Definition at line 48 of file i2c-diolan-u2c.c.

#define CMD_I2C_PUT_BYTE 0x0f

Definition at line 46 of file i2c-diolan-u2c.c.

#define CMD_I2C_PUT_BYTE_ACK 0x13

Definition at line 50 of file i2c-diolan-u2c.c.

#define CMD_I2C_READ 0x01

Definition at line 32 of file i2c-diolan-u2c.c.

#define CMD_I2C_READ_SCL 0x09

Definition at line 40 of file i2c-diolan-u2c.c.

#define CMD_I2C_READ_SDA 0x08

Definition at line 39 of file i2c-diolan-u2c.c.

#define CMD_I2C_RELEASE_SCL 0x05

Definition at line 36 of file i2c-diolan-u2c.c.

#define CMD_I2C_RELEASE_SDA 0x04

Definition at line 35 of file i2c-diolan-u2c.c.

#define CMD_I2C_REPEATED_START 0x0e

Definition at line 45 of file i2c-diolan-u2c.c.

#define CMD_I2C_SCAN 0x03 /* Returns list of detected devices */

Definition at line 34 of file i2c-diolan-u2c.c.

#define CMD_I2C_SET_CLK_SYNC 0x24

Definition at line 54 of file i2c-diolan-u2c.c.

#define CMD_I2C_SET_CLK_SYNC_TO 0x26

Definition at line 56 of file i2c-diolan-u2c.c.

#define CMD_I2C_SET_SPEED 0x1b

Definition at line 52 of file i2c-diolan-u2c.c.

#define CMD_I2C_START 0x0c

Definition at line 43 of file i2c-diolan-u2c.c.

#define CMD_I2C_STOP 0x0d

Definition at line 44 of file i2c-diolan-u2c.c.

#define CMD_I2C_WRITE 0x02

Definition at line 33 of file i2c-diolan-u2c.c.

#define DIOLAN_FLUSH_LEN (DIOLAN_OUTBUF_LEN - 4)

Definition at line 80 of file i2c-diolan-u2c.c.

#define DIOLAN_IN_EP 0x84

Definition at line 29 of file i2c-diolan-u2c.c.

#define DIOLAN_INBUF_LEN 256 /* Maximum supported receive length */

Definition at line 81 of file i2c-diolan-u2c.c.

#define DIOLAN_OUT_EP 0x02

Definition at line 28 of file i2c-diolan-u2c.c.

#define DIOLAN_OUTBUF_LEN 128

Definition at line 79 of file i2c-diolan-u2c.c.

#define DIOLAN_SYNC_TIMEOUT 20 /* in ms */

Definition at line 77 of file i2c-diolan-u2c.c.

#define DIOLAN_USB_TIMEOUT 100 /* in ms */

Definition at line 76 of file i2c-diolan-u2c.c.

#define DRIVER_NAME "i2c-diolan-u2c"

Definition at line 23 of file i2c-diolan-u2c.c.

#define RESP_BAD_MEMADDR 0x04

Definition at line 61 of file i2c-diolan-u2c.c.

#define RESP_DATA_ERR 0x05

Definition at line 62 of file i2c-diolan-u2c.c.

#define RESP_FAILED 0x01

Definition at line 60 of file i2c-diolan-u2c.c.

#define RESP_NACK 0x07

Definition at line 64 of file i2c-diolan-u2c.c.

#define RESP_NOT_IMPLEMENTED 0x06

Definition at line 63 of file i2c-diolan-u2c.c.

#define RESP_OK 0x00

Definition at line 59 of file i2c-diolan-u2c.c.

#define RESP_TIMEOUT 0x09

Definition at line 65 of file i2c-diolan-u2c.c.

#define U2C_I2C_FREQ ( s ) (1000000 / (2 * (s - 1) + 10))

Definition at line 74 of file i2c-diolan-u2c.c.

#define U2C_I2C_FREQ_FAST 400000

Definition at line 72 of file i2c-diolan-u2c.c.

#define U2C_I2C_FREQ_STD 100000

Definition at line 73 of file i2c-diolan-u2c.c.

#define U2C_I2C_SPEED ( f ) ((DIV_ROUND_UP(1000000, (f)) - 10) / 2 + 1)

Definition at line 70 of file i2c-diolan-u2c.c.

#define U2C_I2C_SPEED_2KHZ 242 /* 2 kHz, minimum speed */

Definition at line 69 of file i2c-diolan-u2c.c.

#define U2C_I2C_SPEED_FAST 0 /* 400 kHz */

Definition at line 67 of file i2c-diolan-u2c.c.

#define U2C_I2C_SPEED_STD 1 /* 100 kHz */

Definition at line 68 of file i2c-diolan-u2c.c.

#define USB_DEVICE_ID_DIOLAN_U2C 0x3370

Definition at line 26 of file i2c-diolan-u2c.c.

#define USB_VENDOR_ID_DIOLAN 0x0abf

Definition at line 25 of file i2c-diolan-u2c.c.

Function Documentation

MODULE_AUTHOR ( "Guenter Roeck <[email protected]>" )

MODULE_DESCRIPTION ( DRIVER_NAME" driver" )

MODULE_DEVICE_TABLE	(	usb	,
		diolan_u2c_table
	)

MODULE_LICENSE ( "GPL" )

module_param	(	frequency	,
		uint	,
		S_IRUGO\|	S_IWUSR
	)

MODULE_PARM_DESC	(	frequency	,
		"I2C clock frequency in hertz"
	)

module_usb_driver ( diolan_u2c_driver )

Data Structures

Macros

Functions

Macro Definition Documentation

Function Documentation