ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/services/mgui/lvgl/lv_drivers/indev/evdev.c b/marvell/services/mgui/lvgl/lv_drivers/indev/evdev.c
new file mode 100644
index 0000000..df3cbd6
--- /dev/null
+++ b/marvell/services/mgui/lvgl/lv_drivers/indev/evdev.c
@@ -0,0 +1,219 @@
+/**
+ * @file evdev.c
+ *
+ */
+
+/*********************
+ * INCLUDES
+ *********************/
+#include "evdev.h"
+#if USE_EVDEV != 0
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <linux/input.h>
+
+/*********************
+ * DEFINES
+ *********************/
+
+/**********************
+ * TYPEDEFS
+ **********************/
+
+/**********************
+ * STATIC PROTOTYPES
+ **********************/
+int map(int x, int in_min, int in_max, int out_min, int out_max);
+
+/**********************
+ * STATIC VARIABLES
+ **********************/
+int evdev_fd;
+int evdev_root_x;
+int evdev_root_y;
+int evdev_button;
+
+int evdev_key_val;
+
+/**********************
+ * MACROS
+ **********************/
+
+/**********************
+ * GLOBAL FUNCTIONS
+ **********************/
+
+/**
+ * Initialize the evdev interface
+ */
+void evdev_init(void)
+{
+ evdev_fd = open(EVDEV_NAME, O_RDWR | O_NOCTTY | O_NDELAY);
+ if(evdev_fd == -1) {
+ perror("unable open evdev interface:");
+ return;
+ }
+
+ fcntl(evdev_fd, F_SETFL, O_ASYNC | O_NONBLOCK);
+
+ evdev_root_x = 0;
+ evdev_root_y = 0;
+ evdev_key_val = 0;
+ evdev_button = LV_INDEV_STATE_REL;
+}
+/**
+ * reconfigure the device file for evdev
+ * @param dev_name set the evdev device filename
+ * @return true: the device file set complete
+ * false: the device file doesn't exist current system
+ */
+bool evdev_set_file(char* dev_name)
+{
+ if(evdev_fd != -1) {
+ close(evdev_fd);
+ }
+ evdev_fd = open(dev_name, O_RDWR | O_NOCTTY | O_NDELAY);
+
+ if(evdev_fd == -1) {
+ perror("unable open evdev interface:");
+ return false;
+ }
+
+ fcntl(evdev_fd, F_SETFL, O_ASYNC | O_NONBLOCK);
+
+ evdev_root_x = 0;
+ evdev_root_y = 0;
+ evdev_key_val = 0;
+ evdev_button = LV_INDEV_STATE_REL;
+
+ return true;
+}
+/**
+ * Get the current position and state of the evdev
+ * @param data store the evdev data here
+ * @return false: because the points are not buffered, so no more data to be read
+ */
+bool evdev_read(lv_indev_drv_t * drv, lv_indev_data_t * data)
+{
+ struct input_event in;
+
+ while(read(evdev_fd, &in, sizeof(struct input_event)) > 0) {
+ if(in.type == EV_REL) {
+ if(in.code == REL_X)
+ #if EVDEV_SWAP_AXES
+ evdev_root_y += in.value;
+ #else
+ evdev_root_x += in.value;
+ #endif
+ else if(in.code == REL_Y)
+ #if EVDEV_SWAP_AXES
+ evdev_root_x += in.value;
+ #else
+ evdev_root_y += in.value;
+ #endif
+ } else if(in.type == EV_ABS) {
+ if(in.code == ABS_X)
+ #if EVDEV_SWAP_AXES
+ evdev_root_y = in.value;
+ #else
+ evdev_root_x = in.value;
+ #endif
+ else if(in.code == ABS_Y)
+ #if EVDEV_SWAP_AXES
+ evdev_root_x = in.value;
+ #else
+ evdev_root_y = in.value;
+ #endif
+ else if(in.code == ABS_MT_POSITION_X)
+ #if EVDEV_SWAP_AXES
+ evdev_root_y = in.value;
+ #else
+ evdev_root_x = in.value;
+ #endif
+ else if(in.code == ABS_MT_POSITION_Y)
+ #if EVDEV_SWAP_AXES
+ evdev_root_x = in.value;
+ #else
+ evdev_root_y = in.value;
+ #endif
+ } else if(in.type == EV_KEY) {
+ if(in.code == BTN_MOUSE || in.code == BTN_TOUCH) {
+ if(in.value == 0)
+ evdev_button = LV_INDEV_STATE_REL;
+ else if(in.value == 1)
+ evdev_button = LV_INDEV_STATE_PR;
+ } else if(drv->type == LV_INDEV_TYPE_KEYPAD) {
+ data->state = (in.value) ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL;
+ switch(in.code) {
+ case KEY_BACKSPACE:
+ data->key = LV_KEY_BACKSPACE;
+ break;
+ case KEY_ENTER:
+ data->key = LV_KEY_ENTER;
+ break;
+ case KEY_UP:
+ data->key = LV_KEY_UP;
+ break;
+ case KEY_LEFT:
+ data->key = LV_KEY_PREV;
+ break;
+ case KEY_RIGHT:
+ data->key = LV_KEY_NEXT;
+ break;
+ case KEY_DOWN:
+ data->key = LV_KEY_DOWN;
+ break;
+ default:
+ data->key = 0;
+ break;
+ }
+ evdev_key_val = data->key;
+ evdev_button = data->state;
+ return false;
+ }
+ }
+ }
+
+ if(drv->type == LV_INDEV_TYPE_KEYPAD) {
+ /* No data retrieved */
+ data->key = evdev_key_val;
+ data->state = evdev_button;
+ return false;
+ }
+ if(drv->type != LV_INDEV_TYPE_POINTER)
+ return false;
+ /*Store the collected data*/
+
+#if EVDEV_CALIBRATE
+ data->point.x = map(evdev_root_x, EVDEV_HOR_MIN, EVDEV_HOR_MAX, 0, lv_disp_get_hor_res(drv->disp));
+ data->point.y = map(evdev_root_y, EVDEV_VER_MIN, EVDEV_VER_MAX, 0, lv_disp_get_ver_res(drv->disp));
+#else
+ data->point.x = evdev_root_x;
+ data->point.y = evdev_root_y;
+#endif
+
+ data->state = evdev_button;
+
+ if(data->point.x < 0)
+ data->point.x = 0;
+ if(data->point.y < 0)
+ data->point.y = 0;
+ if(data->point.x >= lv_disp_get_hor_res(drv->disp))
+ data->point.x = lv_disp_get_hor_res(drv->disp) - 1;
+ if(data->point.y >= lv_disp_get_ver_res(drv->disp))
+ data->point.y = lv_disp_get_ver_res(drv->disp) - 1;
+
+ return false;
+}
+
+/**********************
+ * STATIC FUNCTIONS
+ **********************/
+int map(int x, int in_min, int in_max, int out_min, int out_max)
+{
+ return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
+}
+
+#endif