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rt-thread-official/bsp/lpc54608-LPCXpresso/drivers/drv_ft5406.c

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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2017-08-08 Yang the first version
*/
#include <rtthread.h>
#include <rtdevice.h>
#include <finsh.h>
#ifdef RT_USING_RTGUI
#include <rtgui/event.h>
#include <rtgui/rtgui_server.h>
#endif
#include "board.h"
#include "fsl_iocon.h"
#include "fsl_gpio.h"
#include "fsl_i2c.h"
#include "fsl_gint.h"
#define LCD_WIDTH 480
#define LCD_HEIGHT 272
#define BSP_TOUCH_SAMPLE_HZ 30
#define I2CBUS_NAME "i2c2"
#if 0
#define FTDEBUG rt_kprintf
#else
#define FTDEBUG(...)
#endif
#define TOUCH_SLP_TIME (RT_TICK_PER_SECOND * 5)
#define FT5206_TS_ADDR 0x38
#define TP_MAX_TOUCH_POINT 2
enum ft5x0x_ts_regs
{
FT5X0X_REG_THGROUP = 0x80,
FT5X0X_REG_THPEAK = 0x81,
FT5X0X_REG_THCAL = 0x82,
FT5X0X_REG_THWATER = 0x83,
FT5X0X_REG_THTEMP = 0x84,
FT5X0X_REG_THDIFF = 0x85,
FT5X0X_REG_CTRL = 0x86,
FT5X0X_REG_TIMEENTERMONITOR = 0x87,
FT5X0X_REG_PERIODACTIVE = 0x88,
FT5X0X_REG_PERIODMONITOR = 0x89,
FT5X0X_REG_HEIGHT_B = 0x8a,
FT5X0X_REG_MAX_FRAME = 0x8b,
FT5X0X_REG_DIST_MOVE = 0x8c,
FT5X0X_REG_DIST_POINT = 0x8d,
FT5X0X_REG_FEG_FRAME = 0x8e,
FT5X0X_REG_SINGLE_CLICK_OFFSET = 0x8f,
FT5X0X_REG_DOUBLE_CLICK_TIME_MIN = 0x90,
FT5X0X_REG_SINGLE_CLICK_TIME = 0x91,
FT5X0X_REG_LEFT_RIGHT_OFFSET = 0x92,
FT5X0X_REG_UP_DOWN_OFFSET = 0x93,
FT5X0X_REG_DISTANCE_LEFT_RIGHT = 0x94,
FT5X0X_REG_DISTANCE_UP_DOWN = 0x95,
FT5X0X_REG_ZOOM_DIS_SQR = 0x96,
FT5X0X_REG_RADIAN_VALUE = 0x97,
FT5X0X_REG_MAX_X_HIGH = 0x98,
FT5X0X_REG_MAX_X_LOW = 0x99,
FT5X0X_REG_MAX_Y_HIGH = 0x9a,
FT5X0X_REG_MAX_Y_LOW = 0x9b,
FT5X0X_REG_K_X_HIGH = 0x9c,
FT5X0X_REG_K_X_LOW = 0x9d,
FT5X0X_REG_K_Y_HIGH = 0x9e,
FT5X0X_REG_K_Y_LOW = 0x9f,
FT5X0X_REG_AUTO_CLB_MODE = 0xa0,
FT5X0X_REG_LIB_VERSION_H = 0xa1,
FT5X0X_REG_LIB_VERSION_L = 0xa2,
FT5X0X_REG_CIPHER = 0xa3,
FT5X0X_REG_G_MODE = 0xa4,
FT5X0X_REG_PMODE = 0xa5, /* Power Consume Mode */
FT5X0X_REG_FIRMID = 0xa6,
FT5X0X_REG_STATE = 0xa7,
FT5X0X_REG_VENDID = 0xa8,
FT5X0X_REG_ERR = 0xa9,
FT5X0X_REG_CLB = 0xaa,
};
#define CTRL_NOAUTO_MONITOR 0x00
#define CTRL_AUTO_MONITOR 0x01
#define PMODE_ACTIVE 0x00
#define PMODE_MONITOR 0x01
#define PMODE_STANDBY 0x02
#define PMODE_HIBERNATE 0x03
#define G_MODE_POLLING 0x00
#define G_MODE_TRIGGER 0x01
typedef enum _touch_event
{
kTouch_Down = 0, /*!< The state changed to touched. */
kTouch_Up = 1, /*!< The state changed to not touched. */
kTouch_Contact = 2, /*!< There is a continuous touch being detected. */
kTouch_Reserved = 3 /*!< No touch information available. */
} touch_event_t;
typedef struct _touch_point
{
touch_event_t TOUCH_EVENT; /*!< Indicates the state or event of the touch point. */
uint8_t TOUCH_ID; /*!< Id of the touch point. This numeric value stays constant between down and up event. */
uint16_t TOUCH_X; /*!< X coordinate of the touch point */
uint16_t TOUCH_Y; /*!< Y coordinate of the touch point */
} touch_point_t;
typedef struct _ft5406_touch_point
{
uint8_t XH;
uint8_t XL;
uint8_t YH;
uint8_t YL;
uint8_t RESERVED[2];
} ft5406_touch_point_t;
typedef struct _ft5406_touch_data
{
uint8_t GEST_ID;
uint8_t TD_STATUS;
ft5406_touch_point_t TOUCH;
} ft5406_touch_data_t;
#define TOUCH_POINT_GET_EVENT(T) ((touch_event_t)((T).XH >> 6))
#define TOUCH_POINT_GET_ID(T) ((T).YH >> 4)
#define TOUCH_POINT_GET_X(T) ((((T).XH & 0x0f) << 8) | (T).XL)
#define TOUCH_POINT_GET_Y(T) ((((T).YH & 0x0f) << 8) | (T).YL)
static struct rt_i2c_bus_device *_i2c_bus;
static struct rt_semaphore _tp_sem;
static int _ft5406_read(unsigned char cmd,
void *buf,
size_t len)
{
struct rt_i2c_msg msgs[2];
msgs[0].addr = FT5206_TS_ADDR;
msgs[0].flags = RT_I2C_WR;
msgs[0].buf = &cmd;
msgs[0].len = sizeof(cmd);
msgs[1].addr = FT5206_TS_ADDR;
msgs[1].flags = RT_I2C_RD;
msgs[1].buf = buf;
msgs[1].len = len;
if (rt_i2c_transfer(_i2c_bus, msgs, 2) == 2)
return len;
else
return -1;
}
static int ft5406_read_touch(touch_point_t *dp)
{
ft5406_touch_data_t touch_data;
_ft5406_read(0, &touch_data, sizeof(ft5406_touch_data_t));
dp->TOUCH_X = TOUCH_POINT_GET_Y(touch_data.TOUCH);
dp->TOUCH_Y = TOUCH_POINT_GET_X(touch_data.TOUCH);
FTDEBUG(" ==> status : %d (%d, %d)\n", touch_data.TD_STATUS, dp->TOUCH_X, dp->TOUCH_Y);
if (touch_data.TD_STATUS != 0)
return 0;
else
return -1;
}
static void _touch_session()
{
touch_point_t tpd;
#ifdef RT_USING_RTGUI
struct rtgui_event_mouse emouse;
#endif
ft5406_read_touch(&tpd);
#ifdef RT_USING_RTGUI
emouse.parent.sender = RT_NULL;
emouse.wid = RT_NULL;
emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
emouse.button = RTGUI_MOUSE_BUTTON_LEFT | RTGUI_MOUSE_BUTTON_DOWN;
emouse.x = tpd.TOUCH_X;
emouse.y = tpd.TOUCH_Y;
emouse.ts = rt_tick_get();
emouse.id = emouse.ts;
if (emouse.id == 0) emouse.id = 1;
rtgui_server_post_event(&emouse.parent, sizeof(emouse));
#endif
do
{
rt_thread_delay(RT_TICK_PER_SECOND / BSP_TOUCH_SAMPLE_HZ);
if (ft5406_read_touch(&tpd) != 0)
break;
#ifdef RT_USING_RTGUI
emouse.parent.type = RTGUI_EVENT_MOUSE_MOTION;
emouse.x = tpd.TOUCH_X;
emouse.y = tpd.TOUCH_Y;
emouse.ts = rt_tick_get();
rtgui_server_post_event(&emouse.parent, sizeof(emouse));
#endif
}
while (1);
#ifdef RT_USING_RTGUI
/* Always send touch up event. */
emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
emouse.button = RTGUI_MOUSE_BUTTON_LEFT | RTGUI_MOUSE_BUTTON_UP;
emouse.x = tpd.TOUCH_X;
emouse.y = tpd.TOUCH_Y;
emouse.ts = rt_tick_get();
rtgui_server_post_event(&emouse.parent, sizeof(emouse));
#endif
//} while (rt_sem_take(&_tp_sem, TOUCH_SLP_TIME) == RT_EOK);
}
void touch_down(void)
{
rt_sem_release(&_tp_sem);
}
static void _touch(void *p)
{
int io_s;
gpio_pin_config_t pin_config =
{
kGPIO_DigitalInput, 0,
};
CLOCK_EnableClock(kCLOCK_Gpio4);
/* Enable touch panel controller */
GPIO_PinInit(GPIO, 4, 0, &pin_config);
while(1)
{
rt_thread_delay(RT_TICK_PER_SECOND / 60);
io_s = GPIO_ReadPinInput(GPIO, 4, 0);
if (io_s == 0)
{
_touch_session();
}
else
continue;
}
}
int ft5406_hw_init(void)
{
rt_thread_t tid;
rt_device_t dev;
dev = rt_device_find(I2CBUS_NAME);
if (!dev) return -1;
if (rt_device_open(dev, RT_DEVICE_OFLAG_RDWR) != RT_EOK)
return -1;
FTDEBUG("ft5406 set i2c bus to %s\n", I2CBUS_NAME);
_i2c_bus = (struct rt_i2c_bus_device *)dev;
{
gpio_pin_config_t pin_config =
{
kGPIO_DigitalOutput, 0,
};
CLOCK_EnableClock(kCLOCK_Gpio2);
/* Enable touch panel controller */
GPIO_PinInit(GPIO, 2, 27, &pin_config);
GPIO_WritePinOutput(GPIO, 2, 27, 1);
rt_thread_delay(50);
GPIO_WritePinOutput(GPIO, 2, 27, 0);
rt_thread_delay(50);
GPIO_WritePinOutput(GPIO, 2, 27, 1);
}
rt_sem_init(&_tp_sem, "touch", 0, RT_IPC_FLAG_FIFO);
tid = rt_thread_create("touch", _touch, RT_NULL,
2048, 10, 20);
if (!tid)
{
rt_device_close(dev);
return -1;
}
rt_thread_startup(tid);
return 0;
}
INIT_APP_EXPORT(ft5406_hw_init);
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