init lvgl code

LVGL.Simulator/lv_drivers/indev/FT5406EE8.c

@@ -0,0 +1,179 @@
+/**
+ * @file FT5406EE8.c
+ *
+ */
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "FT5406EE8.h"
+#if USE_FT5406EE8
+
+#include <stddef.h>
+#include <stdbool.h>
+#include LV_DRV_INDEV_INCLUDE
+#include LV_DRV_DELAY_INCLUDE
+
+/*********************
+ *      DEFINES
+ *********************/
+
+#define I2C_WR_BIT    0x00
+#define I2C_RD_BIT    0x01
+
+/*DEVICE MODES*/
+#define OPERAT_MD   0x00
+#define TEST_MD     0x04
+#define SYS_INF_MD  0x01
+
+/*OPERATING MODE*/
+#define DEVICE_MODE 0x00
+#define GEST_ID     0x01
+#define TD_STATUS   0x02
+
+#define FT5406EE8_FINGER_MAX 10
+
+/*Register addresses*/
+#define FT5406EE8_REG_DEVICE_MODE 0x00
+#define FT5406EE8_REG_GEST_ID     0x01
+#define FT5406EE8_REG_TD_STATUS   0x02
+#define FT5406EE8_REG_YH          0x03
+#define FT5406EE8_REG_YL          0x04
+#define FT5406EE8_REG_XH          0x05
+#define FT5406EE8_REG_XL          0x06
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+
+static bool ft5406ee8_get_touch_num(void);
+static bool ft5406ee8_read_finger1(int16_t * x,  int16_t * y);
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+/**
+ *
+ */
+void ft5406ee8_init(void)
+{
+
+}
+
+/**
+ * Get the current position and state of the touchpad
+ * @param data store the read data here
+ * @return false: because no ore data to be read
+ */
+bool ft5406ee8_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data)
+{
+    static int16_t x_last;
+    static int16_t y_last;
+    int16_t x;
+    int16_t y;
+    bool valid = true;
+
+    valid = ft5406ee8_get_touch_num();
+    if(valid == true) {
+        valid = ft5406ee8_read_finger1(&x, &y);
+    }
+
+    if(valid == true) {
+        x = (uint32_t)((uint32_t)x * 320) / 2048;
+        y = (uint32_t)((uint32_t)y * 240) / 2048;
+
+
+        x_last = x;
+        y_last = y;
+    } else {
+        x = x_last;
+        y = y_last;
+    }
+
+    data->point.x = x;
+    data->point.y = y;
+    data->state = valid == false ? LV_INDEV_STATE_REL : LV_INDEV_STATE_PR;
+    return false;
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+static bool ft5406ee8_get_touch_num(void)
+{
+    bool ok = true;
+    uint8_t t_num = 0;
+
+    LV_DRV_INDEV_I2C_START;
+    LV_DRV_INDEV_I2C_WR((FT5406EE8_I2C_ADR << 1) | I2C_WR_BIT);
+    LV_DRV_INDEV_I2C_WR(FT5406EE8_REG_TD_STATUS)
+    LV_DRV_INDEV_I2C_RESTART;
+    LV_DRV_INDEV_I2C_WR((FT5406EE8_I2C_ADR << 1) | I2C_RD_BIT);
+    t_num = LV_DRV_INDEV_I2C_READ(0);
+
+    /* Error if not touched or too much finger */
+    if(t_num > FT5406EE8_FINGER_MAX || t_num == 0) {
+        ok = false;
+    }
+
+    return ok;
+}
+
+/**
+ * Read the x and y coordinated
+ * @param x store the x coordinate here
+ * @param y store the y coordinate here
+ * @return false: not valid point; true: valid point
+ */
+static bool ft5406ee8_read_finger1(int16_t * x, int16_t * y)
+{
+    uint8_t temp_xH = 0;
+    uint8_t temp_xL = 0;
+    uint8_t temp_yH = 0;
+    uint8_t temp_yL = 0;
+
+    /*Read Y High and low byte*/
+    LV_DRV_INDEV_I2C_START;
+    LV_DRV_INDEV_I2C_WR((FT5406EE8_I2C_ADR << 1) | I2C_WR_BIT);
+    LV_DRV_INDEV_I2C_WR(FT5406EE8_REG_YH)
+    LV_DRV_INDEV_I2C_RESTART;
+    LV_DRV_INDEV_I2C_WR((FT5406EE8_I2C_ADR << 1) | I2C_RD_BIT);
+    temp_yH = LV_DRV_INDEV_I2C_READ(1);
+    temp_yL = LV_DRV_INDEV_I2C_READ(1);
+
+    /*The upper two bit must be 2 on valid press*/
+    if(((temp_yH >> 6) & 0xFF) != 2) {
+        (void) LV_DRV_INDEV_I2C_READ(0);   /*Dummy read to close read sequence*/
+        *x = 0;
+        *y = 0;
+        return false;
+    }
+
+    /*Read X High and low byte*/
+    temp_xH = LV_DRV_INDEV_I2C_READ(1);
+    temp_xL = LV_DRV_INDEV_I2C_READ(0);
+
+    /*Save the result*/
+    *x = (temp_xH & 0x0F) << 8;
+    *x += temp_xL;
+    *y = (temp_yH & 0x0F) << 8;
+    *y += temp_yL;
+
+    return true;
+}
+
+#endif