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/*
*
**************************************************************************
** STMicroelectronics **
**************************************************************************
* *
* FTS Capacitive touch screen controller (FingerTipS) *
* *
**************************************************************************
**************************************************************************
*
*/
/*!
* \file fts.h
* \brief Contains all the definitions and structs used generally by the driver
*/
#ifndef _LINUX_FTS_H_
#define _LINUX_FTS_H_
#include <linux/device.h>
#include "fts_lib/fts_io.h"
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
#include <goog_touch_interface.h>
#endif
#define LOG_PREFIX "[FTS] "
#define LOGD(fmt, args...) \
pr_debug(LOG_PREFIX fmt, ##args)
#define LOGI(fmt, args...) \
pr_info(LOG_PREFIX fmt, ##args)
#define LOGW(fmt, args...) \
pr_warn(LOG_PREFIX fmt, ##args)
#define LOGE(fmt, args...) \
pr_err(LOG_PREFIX fmt, ##args)
#define FTS_TS_DRV_NAME "fst2"
#define FTS_TS_DRV_VERSION "6.0.3"
#define FTS_TS_DRV_VER 0x06000004
#define PINCTRL_STATE_ACTIVE "pmx_ts_active"
#define PINCTRL_STATE_SUSPEND "pmx_ts_suspend"
#define PINCTRL_STATE_RELEASE "pmx_ts_release"
#define MAX_PROBE_RETRY 3
#define MAX_FIFO_EVENT 32 /* /< max number of events that the FIFO can
* collect */
#define EVENT_DATA_SIZE (FIFO_EVENT_SIZE * MAX_FIFO_EVENT) /* /< event data
* buffer size */
/* **** PANEL SPECIFICATION **** */
#define X_AXIS_MAX 2207 /* /< Max X coordinate of the display */
#define X_AXIS_MIN 0 /* /< min X coordinate of the display */
#define Y_AXIS_MAX 1839 /* /< Max Y coordinate of the display */
#define Y_AXIS_MIN 0 /* /< min Y coordinate of the display */
#define PRESSURE_MIN 0 /* /< min value of pressure reported */
#define PRESSURE_MAX 127 /* /< Max value of pressure reported */
#define DISTANCE_MIN 0 /* /< min distance between the tool and the
* display */
#define DISTANCE_MAX 127 /* /< Max distance between the tool and the
* display */
#define TOUCH_ID_MAX 10 /* /< Max number of simoultaneous touches
* reported */
#define PEN_ID_MAX 4 /* /< Max number of simoultaneous pen
* touches reported */
#define ABS_MAJOR_MIN(scale) (PRESSURE_MIN * scale) /* /< MIN value of
* Major axis reported */
#define ABS_MINOR_MIN(scale) (PRESSURE_MIN * scale) /* /< MIN value of
* Minor axis reported */
#define ABS_MAJOR_MAX(scale) (PRESSURE_MAX * scale) /* /< MAX value of
* Major axis reported */
#define ABS_MINOR_MAX(scale) (PRESSURE_MAX * scale) /* /< MAX value of
* Minor axis reported */
/* **** END **** */
/* Touch Types */
#define TOUCH_TYPE_FINGER_HOVER 0x00 /* /< Finger hover */
#define TOUCH_TYPE_FINGER 0x01 /* /< Finger touch */
#define TOUCH_TYPE_GLOVE 0x02 /* /< Glove touch */
#define TOUCH_TYPE_LARGE 0x03 /* /< Large touch */
/*
* Forward declaration
*/
struct fts_ts_info;
/*
* Dispatch event handler
*/
typedef void (*event_dispatch_handler_t)
(struct fts_ts_info *info, unsigned char *data);
/**
* Struct which contains information about the HW platform and set up
*/
struct fts_hw_platform_data {
int (*power)(bool on);
int irq_gpio;
int reset_gpio;
struct drm_panel *panel;
u8 mm2px;
};
/**
* Struct contains FTS capacitive touch screen device information
*/
struct fts_ts_info {
struct device *dev; /* /< Pointer to the structure device */
#ifdef I2C_INTERFACE
struct i2c_client *client; /* /< I2C client structure */
#else
struct spi_device *client; /* /< SPI client structure */
#endif
struct fts_hw_platform_data *board; /* /< HW info retrieved from
* device tree */
struct regulator *vdd_reg; /* /< DVDD power regulator */
struct regulator *avdd_reg; /* /< AVDD power regulator */
struct pinctrl *ts_pinctrl; /* touch pin control state holder */
struct pinctrl_state *pinctrl_state_active; /* Active pin state*/
struct pinctrl_state *pinctrl_state_suspend; /* Suspend pin state*/
struct pinctrl_state *pinctrl_state_release; /* Release pin state*/
ktime_t timestamp; /* time that the event was first received from the
touch IC, acquired during hard interrupt, in CLOCK_MONOTONIC */
struct mutex fts_int_mutex;
bool irq_enabled; /* Interrupt state */
struct input_dev *input_dev; /* /< Input device structure */
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
struct goog_touch_interface *gti;
#endif
event_dispatch_handler_t *event_dispatch_table;
int resume_bit; /* /< Indicate if screen off/on */
unsigned int mode; /* /< Device operating mode (bitmask: msb
* indicate if active or lpm) */
unsigned long touch_id; /* /< Bitmask for touch id (mapped to input
* slots) */
bool sensor_sleep; /* /< if true suspend was called while if false
* resume was called */
#ifndef FW_UPDATE_ON_PROBE
struct delayed_work fwu_work; /* /< Delayed work thread for fw update
* process */
struct workqueue_struct *fwu_workqueue;/* /< Fw update work
* queue */
#endif
bool dma_mode;
unsigned char evt_data[EVENT_DATA_SIZE];
#if IS_ENABLED(CONFIG_GOOG_TOUCH_INTERFACE)
int16_t *mutual_data;
int mutual_data_size;
int16_t *self_data;
int self_data_size;
int16_t *fw_ms_data;
#endif
};
extern int fts_proc_init(struct fts_ts_info *info);
extern int fts_proc_remove(void);
int fts_system_reset(struct fts_ts_info *info, int poll_event);
int fts_set_interrupt(struct fts_ts_info *info, bool enable);
#endif
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