include/linux/atmel_maxtouch.h - kernel/msm.git - Git at Google

 /*
  *  Atmel maXTouch header file
  *
  *  Copyright (c) 2010 Atmel Corporation
  *  Copyright (C) 2010 Ulf Samuelsson (ulf@atmel.com)
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
  *  published by the Free Software Foundation.
  *  See the file "COPYING" in the main directory of this archive
  *  for more details.
  *
  */

 #define	MXT224_I2C_ADDR1				0x4A
 #define	MXT224_I2C_ADDR2				0x4B
 #define	MXT1386_I2C_ADDR1				0x4C
 #define	MXT1386_I2C_ADDR2				0x4D
 #define	MXT1386_I2C_ADDR3				0x5A
 #define	MXT1386_I2C_ADDR4				0x5B

 /*
  * Select this address from above depending on what maXTouch
  * chip you have and how it's address pins are configured;
  * see datasheet.
  */

 #define MXT_I2C_ADDRESS                                 MXT224_I2C_ADDR2

 #define MXT_BL_ADDRESS                                  0x25

 #define	MXT224_FAMILYID				        0x80
 #define MXT1386_FAMILYID                                0xA0

 #define	MXT224_CAL_VARIANTID				0x01
 #define MXT224_UNCAL_VARIANTID                          0x00
 #define MXT1386_CAL_VARIANTID                           0x00

 #define MXT_MAX_REPORTED_WIDTH                          255
 #define MXT_MAX_REPORTED_PRESSURE                       255
 #define MXT_MAX_TOUCH_SIZE                              255
 #define MXT_MAX_NUM_TOUCHES                             10

 /* Fixed addresses inside maXTouch device */
 #define	MXT_ADDR_INFO_BLOCK				0
 #define	MXT_ADDR_OBJECT_TABLE				7
 #define MXT_ID_BLOCK_SIZE                               7
 #define	MXT_OBJECT_TABLE_ELEMENT_SIZE			6

 /* Object types */
 #define	MXT_DEBUG_DELTAS_T2				2
 #define	MXT_DEBUG_REFERENCES_T3				3
 #define	MXT_GEN_MESSAGEPROCESSOR_T5			5
 #define	MXT_GEN_COMMANDPROCESSOR_T6			6
 #define	MXT_GEN_POWERCONFIG_T7				7
 #define	MXT_GEN_ACQUIRECONFIG_T8			8
 #define	MXT_TOUCH_MULTITOUCHSCREEN_T9			9
 #define MXT_TOUCH_SINGLETOUCHSCREEN_T10                 10
 #define MXT_TOUCH_XSLIDER_T11                           11
 #define MXT_TOUCH_YSLIDER_T12                           12
 #define MXT_TOUCH_XWHEEL_T13                            13
 #define MXT_TOUCH_YWHEEL_T14                            14
 #define	MXT_TOUCH_KEYARRAY_T15				15
 #define	MXT_SPT_GPIOPWM_T19				19
 #define	MXT_PROCI_GRIPFACESUPPRESSION_T20		20
 #define	MXT_PROCG_NOISESUPPRESSION_T22			22
 #define	MXT_TOUCH_PROXIMITY_T23				23
 #define	MXT_PROCI_ONETOUCHGESTUREPROCESSOR_T24		24
 #define	MXT_SPT_SELFTEST_T25				25
 #define MXT_DEBUG_CTERANGE_T26				26
 #define	MXT_PROCI_TWOTOUCHGESTUREPROCESSOR_T27		27
 #define	MXT_SPT_CTECONFIG_T28				28
 #define	MXT_TOUCH_KEYSET_T31				31
 #define	MXT_TOUCH_XSLIDERSET_T32			32
 #define	MXT_DEBUG_DIAGNOSTIC_T37			37
 #define	MXT_USER_INFO_T38				38


 /*
  * If a message is read from mXT when there's no new messages available,
  * the report ID of the message will be 0xFF.
  */
 #define	MXT_END_OF_MESSAGES				0xFF


 /* GEN_COMMANDPROCESSOR_T6 Register offsets from T6 base address */
 #define	MXT_ADR_T6_RESET				0x00
 #define	MXT_ADR_T6_BACKUPNV				0x01
 #define	MXT_ADR_T6_CALIBRATE				0x02
 #define	MXT_ADR_T6_REPORTALL				0x03
 #define	MXT_ADR_T6_RESERVED				0x04
 #define	MXT_ADR_T6_DIAGNOSTIC				0x05

 /* T6 Debug Diagnostics Commands */
 #define	MXT_CMD_T6_PAGE_UP          0x01
 #define	MXT_CMD_T6_PAGE_DOWN        0x02
 #define	MXT_CMD_T6_DELTAS_MODE      0x10
 #define	MXT_CMD_T6_REFERENCES_MODE  0x11
 #define	MXT_CMD_T6_CTE_MODE         0x31

 /* T6 Backup Command */
 #define MXT_CMD_T6_BACKUP           0x55

 /* SPT_DEBUG_DIAGNOSTIC_T37 Register offsets from T37 base address */
 #define MXT_ADR_T37_PAGE                                0x01
 #define	MXT_ADR_T37_DATA				0x02


 /************************************************************************
  * MESSAGE OBJECTS ADDRESS FIELDS
  *
  ************************************************************************/
 #define MXT_MSG_REPORTID                                0x00


 /* MXT_GEN_MESSAGEPROCESSOR_T5 Message address definitions		*/
 #define	MXT_MSG_T5_REPORTID				0x00
 #define	MXT_MSG_T5_MESSAGE				0x01
 #define	MXT_MSG_T5_CHECKSUM				0x08

 /* MXT_GEN_COMMANDPROCESSOR_T6 Message address definitions		*/
 #define	MXT_MSG_T6_STATUS				0x01
 #define		MXT_MSGB_T6_COMSERR		0x04
 #define		MXT_MSGB_T6_CFGERR		0x08
 #define		MXT_MSGB_T6_CAL			0x10
 #define		MXT_MSGB_T6_SIGERR		0x20
 #define		MXT_MSGB_T6_OFL			0x40
 #define		MXT_MSGB_T6_RESET		0x80
 /* Three bytes */
 #define	MXT_MSG_T6_CHECKSUM				0x02

 /* MXT_GEN_POWERCONFIG_T7 NO Message address definitions		*/
 /* MXT_GEN_ACQUIRECONFIG_T8 Message address definitions			*/
 /* MXT_TOUCH_MULTITOUCHSCREEN_T9 Message address definitions		*/

 #define	MXT_MSG_T9_STATUS				0x01
 /* Status bit field */
 #define		MXT_MSGB_T9_SUPPRESS		0x02
 #define		MXT_MSGB_T9_AMP			0x04
 #define		MXT_MSGB_T9_VECTOR		0x08
 #define		MXT_MSGB_T9_MOVE		0x10
 #define		MXT_MSGB_T9_RELEASE		0x20
 #define		MXT_MSGB_T9_PRESS		0x40
 #define		MXT_MSGB_T9_DETECT		0x80

 #define	MXT_MSG_T9_XPOSMSB				0x02
 #define	MXT_MSG_T9_YPOSMSB				0x03
 #define	MXT_MSG_T9_XYPOSLSB				0x04
 #define	MXT_MSG_T9_TCHAREA				0x05
 #define	MXT_MSG_T9_TCHAMPLITUDE				0x06
 #define	MXT_MSG_T9_TCHVECTOR				0x07


 /* MXT_SPT_GPIOPWM_T19 Message address definitions			*/
 #define	MXT_MSG_T19_STATUS				0x01

 /* MXT_PROCI_GRIPFACESUPPRESSION_T20 Message address definitions	*/
 #define	MXT_MSG_T20_STATUS				0x01
 #define		MXT_MSGB_T20_FACE_SUPPRESS	0x01
 /* MXT_PROCG_NOISESUPPRESSION_T22 Message address definitions		*/
 #define	MXT_MSG_T22_STATUS				0x01
 #define		MXT_MSGB_T22_FHCHG		0x01
 #define		MXT_MSGB_T22_GCAFERR		0x04
 #define		MXT_MSGB_T22_FHERR		0x08
 #define	MXT_MSG_T22_GCAFDEPTH				0x02

 /* MXT_TOUCH_PROXIMITY_T23 Message address definitions			*/
 #define	MXT_MSG_T23_STATUS				0x01
 #define		MXT_MSGB_T23_FALL		0x20
 #define		MXT_MSGB_T23_RISE		0x40
 #define		MXT_MSGB_T23_DETECT		0x80
 /* 16 bit */
 #define	MXT_MSG_T23_PROXDELTA				0x02

 /* MXT_PROCI_ONETOUCHGESTUREPROCESSOR_T24 Message address definitions	*/
 #define	MXT_MSG_T24_STATUS				0x01
 #define	MXT_MSG_T24_XPOSMSB				0x02
 #define	MXT_MSG_T24_YPOSMSB				0x03
 #define	MXT_MSG_T24_XYPOSLSB				0x04
 #define	MXT_MSG_T24_DIR					0x05
 /* 16 bit */
 #define	MXT_MSG_T24_DIST				0x06

 /* MXT_SPT_SELFTEST_T25 Message address definitions			*/
 #define	MXT_MSG_T25_STATUS				0x01
 /* 5 Bytes */
 #define		MXT_MSGR_T25_OK			0xFE
 #define		MXT_MSGR_T25_INVALID_TEST	0xFD
 #define		MXT_MSGR_T25_PIN_FAULT		0x11
 #define		MXT_MSGR_T25_SIGNAL_LIMIT_FAULT	0x17
 #define		MXT_MSGR_T25_GAIN_ERROR		0x20
 #define	MXT_MSG_T25_INFO				0x02

 /* MXT_PROCI_TWOTOUCHGESTUREPROCESSOR_T27 Message address definitions	*/
 #define	MXT_MSG_T27_STATUS			0x01
 #define		MXT_MSGB_T27_ROTATEDIR		0x10
 #define		MXT_MSGB_T27_PINCH		0x20
 #define		MXT_MSGB_T27_ROTATE		0x40
 #define		MXT_MSGB_T27_STRETCH		0x80
 #define	MXT_MSG_T27_XPOSMSB			0x02
 #define	MXT_MSG_T27_YPOSMSB			0x03
 #define	MXT_MSG_T27_XYPOSLSB			0x04
 #define	MXT_MSG_T27_ANGLE			0x05

 /* 16 bit */
 #define	MXT_MSG_T27_SEPARATION				0x06

 /* MXT_SPT_CTECONFIG_T28 Message address definitions			*/
 #define	MXT_MSG_T28_STATUS				0x01
 #define	MXT_MSGB_T28_CHKERR		0x01


 /* One Touch Events */
 #define	MXT_GESTURE_RESERVED		0x00
 #define	MXT_GESTURE_PRESS		0x01
 #define	MXT_GESTURE_RELEASE		0x02
 #define	MXT_GESTURE_TAP			0x03
 #define	MXT_GESTURE_DOUBLE_TAP		0x04
 #define	MXT_GESTURE_FLICK		0x05
 #define	MXT_GESTURE_DRAG		0x06
 #define	MXT_GESTURE_SHORT_PRESS		0x07
 #define	MXT_GESTURE_LONG_PRESS		0x08
 #define	MXT_GESTURE_REPEAT_PRESS	0x09
 #define	MXT_GESTURE_TAP_AND_PRESS	0x0a
 #define	MXT_GESTURE_THROW		0x0b

 /* Two-touch events */
 #define MXT_GESTURE_STRETCH             (1 << 7)
 #define MXT_GESTURE_ROTATE              (1 << 6)
 #define MXT_GESTURE_PINCH               (1 << 5)
 #define MXT_GESTURE_ROTATEDIR           (1 << 4)


 /* Bootloader states */
 #define WAITING_BOOTLOAD_COMMAND   0xC0
 #define WAITING_FRAME_DATA         0x80
 #define APP_CRC_FAIL               0x40
 #define FRAME_CRC_CHECK            0x02
 #define FRAME_CRC_PASS             0x04
 #define FRAME_CRC_FAIL             0x03

 #define MXT_MAX_FRAME_SIZE         276

 /* Debug levels */
 #define DEBUG_INFO     1
 #define DEBUG_VERBOSE  2
 #define DEBUG_MESSAGES 5
 #define DEBUG_RAW      8
 #define DEBUG_TRACE   10

 /* IOCTL commands */
 /* TODO: get correct numbers! */
 #define MXT_SET_ADDRESS_IOCTL ('x' + 1)  /* Sets the internal address pointer */
 #define MXT_RESET_IOCTL       ('x' + 2)  /* Resets the device */
 #define MXT_CALIBRATE_IOCTL   ('x' + 3)  /* Calibrates the device */
 /* Backups the current state of registers to NVM */
 #define MXT_BACKUP_IOCTL      ('x' + 4)
 /*
  * Only non-touch messages can be read from the message buffer
  * (/dev/maXTouch_messages)
  */
 #define MXT_NONTOUCH_MSG_IOCTL ('x' + 5)
 /* All messages can be read from the message buffer */
 #define MXT_ALL_MSG_IOCTL ('x' + 6)


 /* Message buffer size. This is a ring buffer, and when full, the oldest entry
    will be overwritten. */
 #define MXT_MESSAGE_BUFFER_SIZE  128

 /* Routines for memory access within a 16 bit address space */

 /* TODO: - won't compile if functions aren't defined*/
 /* Bootloader specific function prototypes. */

 #if 0
 static int mxt_read_byte_bl(struct i2c_client *client, u8 *value);
 static int mxt_read_block_bl(struct i2c_client *client, u16 length, u8 *value);
 static int mxt_write_byte_bl(struct i2c_client *client, u8 value);
 static int mxt_write_block_bl(struct i2c_client *client, u16 length, u8 *value);
 #endif

 /**
  * struct maxtouch_platform_data - includes platform specific informatio
  * related to Atmel maXTouch touchscreen controller.
  *
  * @numtouch:           Number of simultaneous touches supported
  * @init_platform_hw(): Initialization function, which can for example
  *                      trigger a hardware reset by toggling a GPIO pin
  * @exit_platform_hw(): Function to run when the driver is unloaded.
  * @valid_interrupt():  Function that checks the validity of the interrupt -
  *                      function that check the validity of a interrupt (by
  *                      reading the changeline interrupt pin and checking that
  *                      it really is low for example).
  * @max_x:              Reported X range
  * @max_y:              Reported Y range
  */

 struct maxtouch_platform_data {
 	u8    numtouch;	/* Number of touches to report	*/
 	int   (*init_platform_hw)(struct i2c_client *client);
 	int   (*exit_platform_hw)(struct i2c_client *client);
 	int   display_res_x;
 	int   display_res_y;
 	int   min_x;
 	int   min_y;
 	int   max_x;    /* The default reported X range   */
 	int   max_y;    /* The default reported Y range   */
 	u8    (*valid_interrupt) (void);
 	u8    (*read_chg) (void);
 	bool wakeup;
 	int (*power_on)(bool on);
 };

 void	mxt_hw_reset(void);
	/*
	* Atmel maXTouch header file
	*
	* Copyright (c) 2010 Atmel Corporation
	* Copyright (C) 2010 Ulf Samuelsson (ulf@atmel.com)
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	* See the file "COPYING" in the main directory of this archive
	* for more details.
	*
	*/

	#define MXT224_I2C_ADDR1 0x4A
	#define MXT224_I2C_ADDR2 0x4B
	#define MXT1386_I2C_ADDR1 0x4C
	#define MXT1386_I2C_ADDR2 0x4D
	#define MXT1386_I2C_ADDR3 0x5A
	#define MXT1386_I2C_ADDR4 0x5B

	/*
	* Select this address from above depending on what maXTouch
	* chip you have and how it's address pins are configured;
	* see datasheet.
	*/

	#define MXT_I2C_ADDRESS MXT224_I2C_ADDR2

	#define MXT_BL_ADDRESS 0x25

	#define MXT224_FAMILYID 0x80
	#define MXT1386_FAMILYID 0xA0

	#define MXT224_CAL_VARIANTID 0x01
	#define MXT224_UNCAL_VARIANTID 0x00
	#define MXT1386_CAL_VARIANTID 0x00

	#define MXT_MAX_REPORTED_WIDTH 255
	#define MXT_MAX_REPORTED_PRESSURE 255
	#define MXT_MAX_TOUCH_SIZE 255
	#define MXT_MAX_NUM_TOUCHES 10

	/* Fixed addresses inside maXTouch device */
	#define MXT_ADDR_INFO_BLOCK 0
	#define MXT_ADDR_OBJECT_TABLE 7
	#define MXT_ID_BLOCK_SIZE 7
	#define MXT_OBJECT_TABLE_ELEMENT_SIZE 6

	/* Object types */
	#define MXT_DEBUG_DELTAS_T2 2
	#define MXT_DEBUG_REFERENCES_T3 3
	#define MXT_GEN_MESSAGEPROCESSOR_T5 5
	#define MXT_GEN_COMMANDPROCESSOR_T6 6
	#define MXT_GEN_POWERCONFIG_T7 7
	#define MXT_GEN_ACQUIRECONFIG_T8 8
	#define MXT_TOUCH_MULTITOUCHSCREEN_T9 9
	#define MXT_TOUCH_SINGLETOUCHSCREEN_T10 10
	#define MXT_TOUCH_XSLIDER_T11 11
	#define MXT_TOUCH_YSLIDER_T12 12
	#define MXT_TOUCH_XWHEEL_T13 13
	#define MXT_TOUCH_YWHEEL_T14 14
	#define MXT_TOUCH_KEYARRAY_T15 15
	#define MXT_SPT_GPIOPWM_T19 19
	#define MXT_PROCI_GRIPFACESUPPRESSION_T20 20
	#define MXT_PROCG_NOISESUPPRESSION_T22 22
	#define MXT_TOUCH_PROXIMITY_T23 23
	#define MXT_PROCI_ONETOUCHGESTUREPROCESSOR_T24 24
	#define MXT_SPT_SELFTEST_T25 25
	#define MXT_DEBUG_CTERANGE_T26 26
	#define MXT_PROCI_TWOTOUCHGESTUREPROCESSOR_T27 27
	#define MXT_SPT_CTECONFIG_T28 28
	#define MXT_TOUCH_KEYSET_T31 31
	#define MXT_TOUCH_XSLIDERSET_T32 32
	#define MXT_DEBUG_DIAGNOSTIC_T37 37
	#define MXT_USER_INFO_T38 38


	/*
	* If a message is read from mXT when there's no new messages available,
	* the report ID of the message will be 0xFF.
	*/
	#define MXT_END_OF_MESSAGES 0xFF


	/* GEN_COMMANDPROCESSOR_T6 Register offsets from T6 base address */
	#define MXT_ADR_T6_RESET 0x00
	#define MXT_ADR_T6_BACKUPNV 0x01
	#define MXT_ADR_T6_CALIBRATE 0x02
	#define MXT_ADR_T6_REPORTALL 0x03
	#define MXT_ADR_T6_RESERVED 0x04
	#define MXT_ADR_T6_DIAGNOSTIC 0x05

	/* T6 Debug Diagnostics Commands */
	#define MXT_CMD_T6_PAGE_UP 0x01
	#define MXT_CMD_T6_PAGE_DOWN 0x02
	#define MXT_CMD_T6_DELTAS_MODE 0x10
	#define MXT_CMD_T6_REFERENCES_MODE 0x11
	#define MXT_CMD_T6_CTE_MODE 0x31

	/* T6 Backup Command */
	#define MXT_CMD_T6_BACKUP 0x55

	/* SPT_DEBUG_DIAGNOSTIC_T37 Register offsets from T37 base address */
	#define MXT_ADR_T37_PAGE 0x01
	#define MXT_ADR_T37_DATA 0x02



	/************************************************************************
	* MESSAGE OBJECTS ADDRESS FIELDS
	*
	************************************************************************/
	#define MXT_MSG_REPORTID 0x00


	/* MXT_GEN_MESSAGEPROCESSOR_T5 Message address definitions */
	#define MXT_MSG_T5_REPORTID 0x00
	#define MXT_MSG_T5_MESSAGE 0x01
	#define MXT_MSG_T5_CHECKSUM 0x08

	/* MXT_GEN_COMMANDPROCESSOR_T6 Message address definitions */
	#define MXT_MSG_T6_STATUS 0x01
	#define MXT_MSGB_T6_COMSERR 0x04
	#define MXT_MSGB_T6_CFGERR 0x08
	#define MXT_MSGB_T6_CAL 0x10
	#define MXT_MSGB_T6_SIGERR 0x20
	#define MXT_MSGB_T6_OFL 0x40
	#define MXT_MSGB_T6_RESET 0x80
	/* Three bytes */
	#define MXT_MSG_T6_CHECKSUM 0x02

	/* MXT_GEN_POWERCONFIG_T7 NO Message address definitions */
	/* MXT_GEN_ACQUIRECONFIG_T8 Message address definitions */
	/* MXT_TOUCH_MULTITOUCHSCREEN_T9 Message address definitions */

	#define MXT_MSG_T9_STATUS 0x01
	/* Status bit field */
	#define MXT_MSGB_T9_SUPPRESS 0x02
	#define MXT_MSGB_T9_AMP 0x04
	#define MXT_MSGB_T9_VECTOR 0x08
	#define MXT_MSGB_T9_MOVE 0x10
	#define MXT_MSGB_T9_RELEASE 0x20
	#define MXT_MSGB_T9_PRESS 0x40
	#define MXT_MSGB_T9_DETECT 0x80

	#define MXT_MSG_T9_XPOSMSB 0x02
	#define MXT_MSG_T9_YPOSMSB 0x03
	#define MXT_MSG_T9_XYPOSLSB 0x04
	#define MXT_MSG_T9_TCHAREA 0x05
	#define MXT_MSG_T9_TCHAMPLITUDE 0x06
	#define MXT_MSG_T9_TCHVECTOR 0x07


	/* MXT_SPT_GPIOPWM_T19 Message address definitions */
	#define MXT_MSG_T19_STATUS 0x01

	/* MXT_PROCI_GRIPFACESUPPRESSION_T20 Message address definitions */
	#define MXT_MSG_T20_STATUS 0x01
	#define MXT_MSGB_T20_FACE_SUPPRESS 0x01
	/* MXT_PROCG_NOISESUPPRESSION_T22 Message address definitions */
	#define MXT_MSG_T22_STATUS 0x01
	#define MXT_MSGB_T22_FHCHG 0x01
	#define MXT_MSGB_T22_GCAFERR 0x04
	#define MXT_MSGB_T22_FHERR 0x08
	#define MXT_MSG_T22_GCAFDEPTH 0x02

	/* MXT_TOUCH_PROXIMITY_T23 Message address definitions */
	#define MXT_MSG_T23_STATUS 0x01
	#define MXT_MSGB_T23_FALL 0x20
	#define MXT_MSGB_T23_RISE 0x40
	#define MXT_MSGB_T23_DETECT 0x80
	/* 16 bit */
	#define MXT_MSG_T23_PROXDELTA 0x02

	/* MXT_PROCI_ONETOUCHGESTUREPROCESSOR_T24 Message address definitions */
	#define MXT_MSG_T24_STATUS 0x01
	#define MXT_MSG_T24_XPOSMSB 0x02
	#define MXT_MSG_T24_YPOSMSB 0x03
	#define MXT_MSG_T24_XYPOSLSB 0x04
	#define MXT_MSG_T24_DIR 0x05
	/* 16 bit */
	#define MXT_MSG_T24_DIST 0x06

	/* MXT_SPT_SELFTEST_T25 Message address definitions */
	#define MXT_MSG_T25_STATUS 0x01
	/* 5 Bytes */
	#define MXT_MSGR_T25_OK 0xFE
	#define MXT_MSGR_T25_INVALID_TEST 0xFD
	#define MXT_MSGR_T25_PIN_FAULT 0x11
	#define MXT_MSGR_T25_SIGNAL_LIMIT_FAULT 0x17
	#define MXT_MSGR_T25_GAIN_ERROR 0x20
	#define MXT_MSG_T25_INFO 0x02

	/* MXT_PROCI_TWOTOUCHGESTUREPROCESSOR_T27 Message address definitions */
	#define MXT_MSG_T27_STATUS 0x01
	#define MXT_MSGB_T27_ROTATEDIR 0x10
	#define MXT_MSGB_T27_PINCH 0x20
	#define MXT_MSGB_T27_ROTATE 0x40
	#define MXT_MSGB_T27_STRETCH 0x80
	#define MXT_MSG_T27_XPOSMSB 0x02
	#define MXT_MSG_T27_YPOSMSB 0x03
	#define MXT_MSG_T27_XYPOSLSB 0x04
	#define MXT_MSG_T27_ANGLE 0x05

	/* 16 bit */
	#define MXT_MSG_T27_SEPARATION 0x06

	/* MXT_SPT_CTECONFIG_T28 Message address definitions */
	#define MXT_MSG_T28_STATUS 0x01
	#define MXT_MSGB_T28_CHKERR 0x01


	/* One Touch Events */
	#define MXT_GESTURE_RESERVED 0x00
	#define MXT_GESTURE_PRESS 0x01
	#define MXT_GESTURE_RELEASE 0x02
	#define MXT_GESTURE_TAP 0x03
	#define MXT_GESTURE_DOUBLE_TAP 0x04
	#define MXT_GESTURE_FLICK 0x05
	#define MXT_GESTURE_DRAG 0x06
	#define MXT_GESTURE_SHORT_PRESS 0x07
	#define MXT_GESTURE_LONG_PRESS 0x08
	#define MXT_GESTURE_REPEAT_PRESS 0x09
	#define MXT_GESTURE_TAP_AND_PRESS 0x0a
	#define MXT_GESTURE_THROW 0x0b

	/* Two-touch events */
	#define MXT_GESTURE_STRETCH (1 << 7)
	#define MXT_GESTURE_ROTATE (1 << 6)
	#define MXT_GESTURE_PINCH (1 << 5)
	#define MXT_GESTURE_ROTATEDIR (1 << 4)



	/* Bootloader states */
	#define WAITING_BOOTLOAD_COMMAND 0xC0
	#define WAITING_FRAME_DATA 0x80
	#define APP_CRC_FAIL 0x40
	#define FRAME_CRC_CHECK 0x02
	#define FRAME_CRC_PASS 0x04
	#define FRAME_CRC_FAIL 0x03

	#define MXT_MAX_FRAME_SIZE 276

	/* Debug levels */
	#define DEBUG_INFO 1
	#define DEBUG_VERBOSE 2
	#define DEBUG_MESSAGES 5
	#define DEBUG_RAW 8
	#define DEBUG_TRACE 10

	/* IOCTL commands */
	/* TODO: get correct numbers! */
	#define MXT_SET_ADDRESS_IOCTL ('x' + 1) /* Sets the internal address pointer */
	#define MXT_RESET_IOCTL ('x' + 2) /* Resets the device */
	#define MXT_CALIBRATE_IOCTL ('x' + 3) /* Calibrates the device */
	/* Backups the current state of registers to NVM */
	#define MXT_BACKUP_IOCTL ('x' + 4)
	/*
	* Only non-touch messages can be read from the message buffer
	* (/dev/maXTouch_messages)
	*/
	#define MXT_NONTOUCH_MSG_IOCTL ('x' + 5)
	/* All messages can be read from the message buffer */
	#define MXT_ALL_MSG_IOCTL ('x' + 6)


	/* Message buffer size. This is a ring buffer, and when full, the oldest entry
	will be overwritten. */
	#define MXT_MESSAGE_BUFFER_SIZE 128

	/* Routines for memory access within a 16 bit address space */

	/* TODO: - won't compile if functions aren't defined*/
	/* Bootloader specific function prototypes. */

	#if 0
	static int mxt_read_byte_bl(struct i2c_client client, u8 value);
	static int mxt_read_block_bl(struct i2c_client client, u16 length, u8 value);
	static int mxt_write_byte_bl(struct i2c_client *client, u8 value);
	static int mxt_write_block_bl(struct i2c_client client, u16 length, u8 value);
	#endif

	/**
	* struct maxtouch_platform_data - includes platform specific informatio
	* related to Atmel maXTouch touchscreen controller.
	*
	* @numtouch: Number of simultaneous touches supported
	* @init_platform_hw(): Initialization function, which can for example
	* trigger a hardware reset by toggling a GPIO pin
	* @exit_platform_hw(): Function to run when the driver is unloaded.
	* @valid_interrupt(): Function that checks the validity of the interrupt -
	* function that check the validity of a interrupt (by
	* reading the changeline interrupt pin and checking that
	* it really is low for example).
	* @max_x: Reported X range
	* @max_y: Reported Y range
	*/

	struct maxtouch_platform_data {
	u8 numtouch; /* Number of touches to report */
	int (init_platform_hw)(struct i2c_client client);
	int (exit_platform_hw)(struct i2c_client client);
	int display_res_x;
	int display_res_y;
	int min_x;
	int min_y;
	int max_x; /* The default reported X range */
	int max_y; /* The default reported Y range */
	u8 (*valid_interrupt) (void);
	u8 (*read_chg) (void);
	bool wakeup;
	int (*power_on)(bool on);
	};

	void mxt_hw_reset(void);