355 lines
9.8 KiB
C
355 lines
9.8 KiB
C
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/*
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* File : drv_ft5406.c
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* FT5406 touch driver
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* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2017-08-08 Yang the first version
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <finsh.h>
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#include <rtgui/event.h>
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#include <rtgui/rtgui_server.h>
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#include "board.h"
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#include "fsl_gpio.h"
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#include "fsl_lpi2c.h"
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#define BSP_TOUCH_SAMPLE_HZ 30
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#define I2CBUS_NAME "i2c1"
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#if 0
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#define FTDEBUG rt_kprintf
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#else
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#define FTDEBUG(...)
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#endif
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#define TOUCH_SLP_TIME (RT_TICK_PER_SECOND * 5)
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#define FT5206_TS_ADDR 0x38
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#define TP_MAX_TOUCH_POINT 2
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enum ft5x0x_ts_regs
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{
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FT5X0X_REG_THGROUP = 0x80,
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FT5X0X_REG_THPEAK = 0x81,
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FT5X0X_REG_THCAL = 0x82,
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FT5X0X_REG_THWATER = 0x83,
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FT5X0X_REG_THTEMP = 0x84,
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FT5X0X_REG_THDIFF = 0x85,
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FT5X0X_REG_CTRL = 0x86,
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FT5X0X_REG_TIMEENTERMONITOR = 0x87,
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FT5X0X_REG_PERIODACTIVE = 0x88,
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FT5X0X_REG_PERIODMONITOR = 0x89,
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FT5X0X_REG_HEIGHT_B = 0x8a,
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FT5X0X_REG_MAX_FRAME = 0x8b,
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FT5X0X_REG_DIST_MOVE = 0x8c,
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FT5X0X_REG_DIST_POINT = 0x8d,
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FT5X0X_REG_FEG_FRAME = 0x8e,
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FT5X0X_REG_SINGLE_CLICK_OFFSET = 0x8f,
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FT5X0X_REG_DOUBLE_CLICK_TIME_MIN = 0x90,
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FT5X0X_REG_SINGLE_CLICK_TIME = 0x91,
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FT5X0X_REG_LEFT_RIGHT_OFFSET = 0x92,
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FT5X0X_REG_UP_DOWN_OFFSET = 0x93,
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FT5X0X_REG_DISTANCE_LEFT_RIGHT = 0x94,
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FT5X0X_REG_DISTANCE_UP_DOWN = 0x95,
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FT5X0X_REG_ZOOM_DIS_SQR = 0x96,
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FT5X0X_REG_RADIAN_VALUE = 0x97,
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FT5X0X_REG_MAX_X_HIGH = 0x98,
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FT5X0X_REG_MAX_X_LOW = 0x99,
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FT5X0X_REG_MAX_Y_HIGH = 0x9a,
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FT5X0X_REG_MAX_Y_LOW = 0x9b,
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FT5X0X_REG_K_X_HIGH = 0x9c,
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FT5X0X_REG_K_X_LOW = 0x9d,
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FT5X0X_REG_K_Y_HIGH = 0x9e,
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FT5X0X_REG_K_Y_LOW = 0x9f,
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FT5X0X_REG_AUTO_CLB_MODE = 0xa0,
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FT5X0X_REG_LIB_VERSION_H = 0xa1,
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FT5X0X_REG_LIB_VERSION_L = 0xa2,
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FT5X0X_REG_CIPHER = 0xa3,
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FT5X0X_REG_G_MODE = 0xa4,
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FT5X0X_REG_PMODE = 0xa5, /* Power Consume Mode */
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FT5X0X_REG_FIRMID = 0xa6,
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FT5X0X_REG_STATE = 0xa7,
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FT5X0X_REG_VENDID = 0xa8,
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FT5X0X_REG_ERR = 0xa9,
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FT5X0X_REG_CLB = 0xaa,
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};
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#define CTRL_NOAUTO_MONITOR 0x00
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#define CTRL_AUTO_MONITOR 0x01
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#define PMODE_ACTIVE 0x00
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#define PMODE_MONITOR 0x01
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#define PMODE_STANDBY 0x02
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#define PMODE_HIBERNATE 0x03
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#define G_MODE_POLLING 0x00
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#define G_MODE_TRIGGER 0x01
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typedef enum _touch_event
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{
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kTouch_Down = 0, /*!< The state changed to touched. */
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kTouch_Up = 1, /*!< The state changed to not touched. */
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kTouch_Contact = 2, /*!< There is a continuous touch being detected. */
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kTouch_Reserved = 3 /*!< No touch information available. */
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} touch_event_t;
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typedef struct _touch_point
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{
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touch_event_t TOUCH_EVENT; /*!< Indicates the state or event of the touch point. */
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uint8_t TOUCH_ID; /*!< Id of the touch point. This numeric value stays constant between down and up event. */
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uint16_t TOUCH_X; /*!< X coordinate of the touch point */
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uint16_t TOUCH_Y; /*!< Y coordinate of the touch point */
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} touch_point_t;
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typedef struct _ft5406_touch_point
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{
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uint8_t XH;
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uint8_t XL;
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uint8_t YH;
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uint8_t YL;
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uint8_t RESERVED[2];
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} ft5406_touch_point_t;
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typedef struct _ft5406_touch_data
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{
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uint8_t DEVIDE_MODE;
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uint8_t GEST_ID;
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uint8_t TD_STATUS;
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ft5406_touch_point_t TOUCH;
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} ft5406_touch_data_t;
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#define TOUCH_POINT_GET_EVENT(T) ((touch_event_t)((T).XH >> 6))
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#define TOUCH_POINT_GET_ID(T) ((T).YH >> 4)
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#define TOUCH_POINT_GET_X(T) ((((T).XH & 0x0f) << 8) | (T).XL)
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#define TOUCH_POINT_GET_Y(T) ((((T).YH & 0x0f) << 8) | (T).YL)
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static struct rt_i2c_bus_device *_i2c_bus;
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static struct rt_semaphore _tp_sem;
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static int _ft5406_read(unsigned char cmd,
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void *buf,
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size_t len)
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{
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struct rt_i2c_msg msgs[2];
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msgs[0].addr = FT5206_TS_ADDR;
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msgs[0].flags = RT_I2C_WR;
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msgs[0].buf = &cmd;
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msgs[0].len = sizeof(cmd);
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msgs[1].addr = FT5206_TS_ADDR;
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msgs[1].flags = RT_I2C_RD;
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msgs[1].buf = buf;
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msgs[1].len = len;
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if (rt_i2c_transfer(_i2c_bus, msgs, 2) == 2)
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return len;
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else
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return -1;
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}
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static int ft5406_read_touch(touch_point_t *dp)
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{
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ft5406_touch_data_t touch_data;
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_ft5406_read(0, &touch_data, sizeof(ft5406_touch_data_t));
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FTDEBUG("GEST_ID: %02x, TD_STATUS: %02x\n", touch_data.GEST_ID, touch_data.TD_STATUS);
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FTDEBUG("XH: %02x, XL: %02x, XH: %02x, XH: %02x, XH: %02x, RESERVED[0]: %02x, RESERVED[1]: %02x\n",
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touch_data.TOUCH.XH, touch_data.TOUCH.XL,
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touch_data.TOUCH.YH, touch_data.TOUCH.YL,
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touch_data.TOUCH.RESERVED[0], touch_data.TOUCH.RESERVED[1]);
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dp->TOUCH_X = TOUCH_POINT_GET_Y(touch_data.TOUCH);
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dp->TOUCH_Y = TOUCH_POINT_GET_X(touch_data.TOUCH);
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FTDEBUG(" ==> status : %d (%d, %d)\n", touch_data.TD_STATUS, dp->TOUCH_X, dp->TOUCH_Y);
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if (touch_data.TD_STATUS != 0)
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return 0;
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else
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return -1;
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}
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static void _touch_session()
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{
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touch_point_t tpd;
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#ifdef RT_USING_RTGUI
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struct rtgui_event_mouse emouse;
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#endif
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ft5406_read_touch(&tpd);
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#ifdef RT_USING_RTGUI
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emouse.parent.sender = RT_NULL;
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emouse.wid = RT_NULL;
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emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
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emouse.button = RTGUI_MOUSE_BUTTON_LEFT | RTGUI_MOUSE_BUTTON_DOWN;
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emouse.x = tpd.TOUCH_X;
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emouse.y = tpd.TOUCH_Y;
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emouse.ts = rt_tick_get();
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emouse.id = emouse.ts;
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if (emouse.id == 0) emouse.id = 1;
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rtgui_server_post_event(&emouse.parent, sizeof(emouse));
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#endif
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do
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{
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rt_thread_delay(RT_TICK_PER_SECOND / BSP_TOUCH_SAMPLE_HZ);
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if (ft5406_read_touch(&tpd) != 0)
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break;
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#ifdef RT_USING_RTGUI
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emouse.parent.type = RTGUI_EVENT_MOUSE_MOTION;
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emouse.x = tpd.TOUCH_X;
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emouse.y = tpd.TOUCH_Y;
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emouse.ts = rt_tick_get();
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rtgui_server_post_event(&emouse.parent, sizeof(emouse));
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#endif
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}
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while (1);
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#ifdef RT_USING_RTGUI
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/* Always send touch up event. */
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emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
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emouse.button = RTGUI_MOUSE_BUTTON_LEFT | RTGUI_MOUSE_BUTTON_UP;
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emouse.x = tpd.TOUCH_X;
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emouse.y = tpd.TOUCH_Y;
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emouse.ts = rt_tick_get();
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rtgui_server_post_event(&emouse.parent, sizeof(emouse));
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#endif
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//} while (rt_sem_take(&_tp_sem, TOUCH_SLP_TIME) == RT_EOK);
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}
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void touch_down(void)
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{
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rt_sem_release(&_tp_sem);
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}
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static void _touch(void *p)
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{
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int io_s;
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gpio_pin_config_t pin_config =
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{
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kGPIO_DigitalInput, 0,
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};
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IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_11_GPIO1_IO11, 0U);
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/* Enable touch panel controller */
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GPIO_PinInit(GPIO1, 11, &pin_config);
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while(1)
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{
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rt_thread_delay(RT_TICK_PER_SECOND / 60);
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io_s = GPIO_ReadPinInput(GPIO1, 11);
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if (io_s == 0)
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{
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_touch_session();
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}
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else
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continue;
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}
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}
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static rt_device_t _i2c_find(const char *name)
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{
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rt_device_t dev;
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dev = rt_device_find(name);
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if (!dev)
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{
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rt_kprintf("search device failed: %s\n", name);
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return RT_NULL;
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}
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if (rt_device_open(dev, RT_DEVICE_OFLAG_RDWR) != RT_EOK)
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{
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rt_kprintf("open device failed: %s\n", name);
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return RT_NULL;
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}
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rt_kprintf("open i2c bus: %s\n", name);
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return dev;
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}
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static void ft5406_hw_reset(void)
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{
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gpio_pin_config_t pin_config =
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{
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kGPIO_DigitalOutput, 0,
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};
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CLOCK_EnableClock(kCLOCK_Gpio1);
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IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_02_GPIO1_IO02, 0U);
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IOMUXC_SetPinConfig(IOMUXC_GPIO_AD_B0_02_GPIO1_IO02, 0x10B0u);
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/* Enable touch panel controller */
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GPIO_PinInit(GPIO1, 2, &pin_config);
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GPIO_WritePinOutput(GPIO1, 2, 1);
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rt_thread_delay(RT_TICK_PER_SECOND / 20);
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GPIO_WritePinOutput(GPIO1, 2, 0);
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rt_thread_delay(RT_TICK_PER_SECOND / 20);
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GPIO_WritePinOutput(GPIO1, 2, 1);
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}
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int ft5406_hw_init(void)
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{
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rt_thread_t tid;
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rt_device_t dev = _i2c_find(I2CBUS_NAME);
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if (dev == RT_NULL)
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{
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FTDEBUG("search i2c device faild: %s\n", I2CBUS_NAME);
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return -1;
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}
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else
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{
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FTDEBUG("ft5406 set i2c bus to %s\n", I2CBUS_NAME);
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_i2c_bus = (struct rt_i2c_bus_device *)dev;
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}
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ft5406_hw_reset();
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rt_sem_init(&_tp_sem, "touch", 0, RT_IPC_FLAG_FIFO);
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tid = rt_thread_create("touch", _touch, RT_NULL, 2048, 10, 20);
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if (!tid)
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{
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rt_device_close(dev);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
rt_thread_startup(tid);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
INIT_APP_EXPORT(ft5406_hw_init);
|