#include "ultibo/gpio.h"
#include "ultibo/i2c.h"
#include "ultibo/touch.h"

Data Structures
struct	_GOODIX_TOUCH

Macros
#define	GOODIX_TOUCH_DESCRIPTION "Goodix Touch Controller"
	Description of Goodix Touch device.
#define	GOODIX_MAX_HEIGHT 4096
#define	GOODIX_MAX_WIDTH 4096
#define	GOODIX_INT_TRIGGER 1
#define	GOODIX_CONTACT_SIZE 8
#define	GOODIX_MAX_CONTACT_SIZE 9
#define	GOODIX_MAX_CONTACTS 10
#define	GOODIX_MAX_KEYS 7
#define	GOODIX_CONFIG_MIN_LENGTH 186
#define	GOODIX_CONFIG_911_LENGTH 186
#define	GOODIX_CONFIG_967_LENGTH 228
#define	GOODIX_CONFIG_GT9X_LENGTH 240
#define	GOODIX_CONFIG_MAX_LENGTH 240
#define	GOODIX_I2C_RATE 400000
	Default I2C clock rate.
#define	GOODIX_CONFIG_TIMEOUT 3000
	Timeout to wait for firmware ready.
#define	GOODIX_REG_COMMAND 0x8040
#define	GOODIX_CMD_SCREEN_OFF 0x05
#define	GOODIX_READ_COOR_ADDR 0x814E
#define	GOODIX_GT1X_REG_CONFIG_DATA 0x8050
#define	GOODIX_GT9X_REG_CONFIG_DATA 0x8047
#define	GOODIX_REG_ID 0x8140
#define	GOODIX_BUFFER_STATUS_READY (1 << 7)
#define	GOODIX_HAVE_KEY (1 << 4)
#define	GOODIX_BUFFER_STATUS_TIMEOUT 20
#define	GOODIX_ID_MAX_LEN 4
#define	GOODIX_RESOLUTION_OFFSET 1
#define	GOODIX_MAX_CONTACTS_OFFSET 5
#define	GOODIX_TRIGGER_OFFSET 6

Typedefs
typedef struct _GOODIX_TOUCH	GOODIX_TOUCH
typedef uint8_t	GOODIX_POINT_DATA[2+GOODIX_MAX_CONTACT_SIZE *GOODIX_MAX_CONTACTS]

Functions
void STDCALL	goodix_init (void)
TOUCH_DEVICE *STDCALL	goodix_touch_create (I2C_DEVICE i2c, uint16_t address, uint32_t width, uint32_t height, GPIO_INFO irq, GPIO_INFO *rst)
	Create, register and start a new Goodix Touch device connected to the specified I2C device.
uint32_t STDCALL	goodix_touch_destroy (TOUCH_DEVICE *touch)
	Stop, deregister and destroy a Goodix Touch device created by this driver.

Macro Definition Documentation

◆ GOODIX_TOUCH_DESCRIPTION

#define GOODIX_TOUCH_DESCRIPTION "Goodix Touch Controller"

Description of Goodix Touch device.

Goodix specific constants

◆ GOODIX_MAX_HEIGHT

#define GOODIX_MAX_HEIGHT 4096

◆ GOODIX_MAX_WIDTH

#define GOODIX_MAX_WIDTH 4096

◆ GOODIX_INT_TRIGGER

#define GOODIX_INT_TRIGGER 1

◆ GOODIX_CONTACT_SIZE

#define GOODIX_CONTACT_SIZE 8

◆ GOODIX_MAX_CONTACT_SIZE

#define GOODIX_MAX_CONTACT_SIZE 9

◆ GOODIX_MAX_CONTACTS

#define GOODIX_MAX_CONTACTS 10

◆ GOODIX_MAX_KEYS

#define GOODIX_MAX_KEYS 7

◆ GOODIX_CONFIG_MIN_LENGTH

#define GOODIX_CONFIG_MIN_LENGTH 186

◆ GOODIX_CONFIG_911_LENGTH

#define GOODIX_CONFIG_911_LENGTH 186

◆ GOODIX_CONFIG_967_LENGTH

#define GOODIX_CONFIG_967_LENGTH 228

◆ GOODIX_CONFIG_GT9X_LENGTH

#define GOODIX_CONFIG_GT9X_LENGTH 240

◆ GOODIX_CONFIG_MAX_LENGTH

#define GOODIX_CONFIG_MAX_LENGTH 240

◆ GOODIX_I2C_RATE

#define GOODIX_I2C_RATE 400000

Default I2C clock rate.

Goodix I2C constants

◆ GOODIX_CONFIG_TIMEOUT

#define GOODIX_CONFIG_TIMEOUT 3000

Timeout to wait for firmware ready.

◆ GOODIX_REG_COMMAND

#define GOODIX_REG_COMMAND 0x8040

Goodix register constants

◆ GOODIX_CMD_SCREEN_OFF

#define GOODIX_CMD_SCREEN_OFF 0x05

◆ GOODIX_READ_COOR_ADDR

#define GOODIX_READ_COOR_ADDR 0x814E

◆ GOODIX_GT1X_REG_CONFIG_DATA

#define GOODIX_GT1X_REG_CONFIG_DATA 0x8050

◆ GOODIX_GT9X_REG_CONFIG_DATA

#define GOODIX_GT9X_REG_CONFIG_DATA 0x8047

◆ GOODIX_REG_ID

#define GOODIX_REG_ID 0x8140

◆ GOODIX_BUFFER_STATUS_READY

#define GOODIX_BUFFER_STATUS_READY (1 << 7)

◆ GOODIX_HAVE_KEY

#define GOODIX_HAVE_KEY (1 << 4)

◆ GOODIX_BUFFER_STATUS_TIMEOUT

#define GOODIX_BUFFER_STATUS_TIMEOUT 20

◆ GOODIX_ID_MAX_LEN

#define GOODIX_ID_MAX_LEN 4

◆ GOODIX_RESOLUTION_OFFSET

#define GOODIX_RESOLUTION_OFFSET 1

◆ GOODIX_MAX_CONTACTS_OFFSET

#define GOODIX_MAX_CONTACTS_OFFSET 5

◆ GOODIX_TRIGGER_OFFSET

#define GOODIX_TRIGGER_OFFSET 6

Typedef Documentation

◆ GOODIX_TOUCH

typedef struct _GOODIX_TOUCH GOODIX_TOUCH

Goodix specific types

◆ GOODIX_POINT_DATA

typedef uint8_t GOODIX_POINT_DATA[2+GOODIX_MAX_CONTACT_SIZE *GOODIX_MAX_CONTACTS]

Function Documentation

◆ goodix_init()

void STDCALL goodix_init ( void )

Initialization Functions

◆ goodix_touch_create()

TOUCH_DEVICE *STDCALL goodix_touch_create	(	I2C_DEVICE *	i2c,
		uint16_t	address,
		uint32_t	width,
		uint32_t	height,
		GPIO_INFO *	irq,
		GPIO_INFO *	rst )

Create, register and start a new Goodix Touch device connected to the specified I2C device.

Goodix Functions

Parameters

I2C	The I2C device this Goodix Touch device is connected to
Address	The I2C address for this Goodix Touch device
Width	The width of the screen in pixels (When set at TOUCH_ROTATION_0)
Height	The height of the screen in pixels (When set at TOUCH_ROTATION_0)
IRQ	The GPIO information for the IRQ line (Optional)

Returns: Pointer to the new Touch device or nil on failure

◆ goodix_touch_destroy()

uint32_t STDCALL goodix_touch_destroy ( TOUCH_DEVICE * touch )

Stop, deregister and destroy a Goodix Touch device created by this driver.