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LVGL prepare for Touch Screen calibration

This commit is contained in:
Stephan Hadinger 2022-01-10 13:48:40 +01:00
parent 9d5fd97b2f
commit 9b0a5b89fe
10 changed files with 84 additions and 21 deletions
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26
lib/libesp32_lvgl/Adafruit_LvGL_Glue-shadinger/Adafruit_LvGL_Glue.cpp
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@ -1,5 +1,6 @@
#include "Adafruit_LvGL_Glue.h"
#include <lvgl.h>
#include "lv_berry.h"
// ARCHITECTURE-SPECIFIC TIMER STUFF ---------------------------------------
@ -12,29 +13,22 @@ static void lv_tick_handler(void) { lv_tick_inc(lv_tick_interval_ms); }
// TOUCHSCREEN STUFF -------------------------------------------------------
// STMPE610 calibration for raw touch data
#define TS_MINX 100
#define TS_MAXX 3800
#define TS_MINY 100
#define TS_MAXY 3750
// Same, for ADC touchscreen
#define ADC_XMIN 325
#define ADC_XMAX 750
#define ADC_YMIN 240
#define ADC_YMAX 840
uint32_t Touch_Status(uint32_t sel);
uint32_t Touch_Status(int32_t sel);
static void touchscreen_read(lv_indev_drv_t *indev_drv, lv_indev_data_t *data) {
//lv_coord_t last_x = 0, last_y = 0;
//static uint8_t release_count = 0;
data->point.x = Touch_Status(1); // Last-pressed coordinates
data->point.y = Touch_Status(2);
data->state = Touch_Status(0) ? LV_INDEV_STATE_PRESSED : LV_INDEV_STATE_RELEASED;
data->continue_reading = false; /*No buffering now so no more data read*/
// keep data for TS calibration
lv_ts_calibration.state = data->state;
if (data->state == LV_INDEV_STATE_PRESSED) { // if not pressed, the data may be invalid
lv_ts_calibration.x = data->point.x;
lv_ts_calibration.y = data->point.y;
lv_ts_calibration.raw_x = Touch_Status(-1);
lv_ts_calibration.raw_y = Touch_Status(-2);
}
}
// OTHER LITTLEVGL VITALS --------------------------------------------------

4
lib/libesp32_lvgl/lv_berry/generate/be_lvgl_module.c
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@ -8,11 +8,14 @@
#include "lvgl.h"
#include "be_mapping.h"
#include "lv_berry.h"
#include "lv_theme_openhasp.h"
extern int lv0_member(bvm *vm); // resolve virtual members
extern int lv0_load_font(bvm *vm);
extern lv_ts_calibration_t * lv_get_ts_calibration(void);
static int lv_get_hor_res(void) {
return lv_disp_get_hor_res(lv_disp_get_default());
@ -62,6 +65,7 @@ const be_ntv_func_def_t lv_func[] = {
{ "event_set_ext_draw_size", (void*) &lv_event_set_ext_draw_size, "", "(lv.lv_event)i" },
{ "flex_init", (void*) &lv_flex_init, "", "" },
{ "get_hor_res", (void*) &lv_get_hor_res, "i", "" },
{ "get_ts_calibration", (void*) &lv_get_ts_calibration, "lv.lv_ts_calibration", "" },
{ "get_ver_res", (void*) &lv_get_ver_res, "i", "" },
{ "grid_fr", (void*) &lv_grid_fr, "i", "i" },
{ "grid_init", (void*) &lv_grid_init, "", "" },

1
lib/libesp32_lvgl/lv_berry/mapping/lv_funcs.h
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@ -4,6 +4,7 @@
// Custom Tasmota functions
void lv_img_set_tasmota_logo(lv_obj_t * img);
lv_ts_calibration_t * lv_get_ts_calibration(void);
// ======================================================================
// Artificial

15
lib/libesp32_lvgl/lv_berry/src/be_lvgl_ctypes_definitions.c
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@ -463,6 +463,18 @@ const be_ctypes_structure_t be_lv_event = {
{ "user_data", 12, 0, 0, ctypes_ptr32, 0 },
}};
const be_ctypes_structure_t be_lv_ts_calibration = {
12, /* size in bytes */
5, /* number of elements */
be_ctypes_instance_mappings,
(const be_ctypes_structure_item_t[5]) {
{ "raw_x", 0, 0, 0, ctypes_i16, 0 },
{ "raw_y", 2, 0, 0, ctypes_i16, 0 },
{ "state", 8, 0, 0, ctypes_i32, 0 },
{ "x", 4, 0, 0, ctypes_i16, 0 },
{ "y", 6, 0, 0, ctypes_i16, 0 },
}};
static const char * be_ctypes_instance_mappings[] = {
"lv_color",
NULL
@ -496,6 +508,7 @@ static be_define_ctypes_class(lv_meter_scale, &be_lv_meter_scale, &be_class_ctyp
static be_define_ctypes_class(lv_obj_class, &be_lv_obj_class, &be_class_ctypes, "lv_obj_class");
static be_define_ctypes_class(lv_point, &be_lv_point, &be_class_ctypes, "lv_point");
static be_define_ctypes_class(lv_sqrt_res, &be_lv_sqrt_res, &be_class_ctypes, "lv_sqrt_res");
static be_define_ctypes_class(lv_ts_calibration, &be_lv_ts_calibration, &be_class_ctypes, "lv_ts_calibration");
void be_load_ctypes_lvgl_definitions_lib(bvm *vm) {
ctypes_register_class(vm, &be_class_lv_area, &be_lv_area);
@ -526,6 +539,7 @@ void be_load_ctypes_lvgl_definitions_lib(bvm *vm) {
ctypes_register_class(vm, &be_class_lv_obj_class, &be_lv_obj_class);
ctypes_register_class(vm, &be_class_lv_point, &be_lv_point);
ctypes_register_class(vm, &be_class_lv_sqrt_res, &be_lv_sqrt_res);
ctypes_register_class(vm, &be_class_lv_ts_calibration, &be_lv_ts_calibration);
}
be_ctypes_class_by_name_t be_ctypes_lvgl_classes[] = {
@ -557,6 +571,7 @@ be_ctypes_class_by_name_t be_ctypes_lvgl_classes[] = {
{ "lv_obj_class", &be_class_lv_obj_class },
{ "lv_point", &be_class_lv_point },
{ "lv_sqrt_res", &be_class_lv_sqrt_res },
{ "lv_ts_calibration", &be_class_lv_ts_calibration },
};
const size_t be_ctypes_lvgl_classes_size = sizeof(be_ctypes_lvgl_classes)/sizeof(be_ctypes_lvgl_classes[0]);

12
lib/libesp32_lvgl/lv_berry/src/embedded/lvgl_ctypes.be
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@ -393,6 +393,18 @@ lv_event = [ # valid LVGL8
]
lv_event = ctypes.structure(lv_event, "lv_event")
#######################################################################
# Special structure used to calibrate resistive touchscreens
#######################################################################
lv_ts_calibration = [ # valid LVGL8
[lv_coord, "raw_x"],
[lv_coord, "raw_y"],
[lv_coord, "x"],
[lv_coord, "y"],
[int32_t, "state"],
]
lv_ts_calibration = ctypes.structure(lv_ts_calibration, "lv_ts_calibration")
#
ctypes.print_classes("lvgl")

13
lib/libesp32_lvgl/lv_berry/src/lv_berry.c
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@ -228,6 +228,19 @@ int lv0_load_font(bvm *vm) {
be_raise(vm, "type_error", NULL);
}
/*********************************************************************************************\
* Get Touch Screen calibration information
\*********************************************************************************************/
lv_ts_calibration_t lv_ts_calibration = {
0, 0,
0, 0,
LV_INDEV_STATE_RELEASED
};
lv_ts_calibration_t * lv_get_ts_calibration(void) {
return &lv_ts_calibration;
}
/*********************************************************************************************\
* LVGL top level virtual members
*

11
lib/libesp32_lvgl/lv_berry/src/lv_berry.h
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@ -27,6 +27,17 @@ extern void be_load_lvgl_classes(bvm *vm);
// TODO temporary fix
extern void lv_img_set_tasmota_logo(lv_obj_t * img);
// used for ToushScreen calibration
typedef struct lv_ts_calibration_t {
lv_coord_t raw_x;
lv_coord_t raw_y;
lv_coord_t x;
lv_coord_t y;
lv_indev_state_t state;
} lv_ts_calibration_t;
extern lv_ts_calibration_t lv_ts_calibration;
#ifdef __cplusplus
}
#endif

4
lib/libesp32_lvgl/lv_berry/tools/convert.py
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@ -134,6 +134,7 @@ return_types = {
"lv_theme_t *": "lv_theme",
"lv_disp_t *": "lv_disp",
"lv_indev_t *": "lv_indev",
"lv_ts_calibration_t *": "lv_ts_calibration",
#"lv_disp_t*": "lv_disp",
#"lv_style_list_t*": "",
@ -671,11 +672,14 @@ print("""/********************************************************************
#include "lvgl.h"
#include "be_mapping.h"
#include "lv_berry.h"
#include "lv_theme_openhasp.h"
extern int lv0_member(bvm *vm); // resolve virtual members
extern int lv0_load_font(bvm *vm);
extern lv_ts_calibration_t * lv_get_ts_calibration(void);
static int lv_get_hor_res(void) {
return lv_disp_get_hor_res(lv_disp_get_default());

1
lib/libesp32_lvgl/lv_berry/tools/preprocessor.py
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@ -86,6 +86,7 @@ print("""
// Custom Tasmota functions
void lv_img_set_tasmota_logo(lv_obj_t * img);
lv_ts_calibration_t * lv_get_ts_calibration(void);
// ======================================================================
// Artificial

18
tasmota/xdrv_55_touch.ino
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@ -31,6 +31,8 @@
bool FT5206_found = false;
bool XPT2046_found = false;
int16_t raw_touch_xp;
int16_t raw_touch_yp;
int16_t touch_xp;
int16_t touch_yp;
bool touched;
@ -43,7 +45,7 @@ bool touched;
VButton *buttons[MAX_TOUCH_BUTTONS];
#endif
uint32_t Touch_Status(uint32_t sel) {
uint32_t Touch_Status(int32_t sel) {
if (FT5206_found || XPT2046_found) {
switch (sel) {
case 0:
@ -52,6 +54,10 @@ uint32_t Touch_Status(uint32_t sel) {
return touch_xp;
case 2:
return touch_yp;
case -1: // before calibration
return raw_touch_xp;
case -2:
return raw_touch_yp;
}
return 0;
} else {
@ -141,8 +147,9 @@ void Touch_Check(void(*rotconvert)(int16_t *x, int16_t *y)) {
}
#endif // USE_XPT2046
raw_touch_xp = touch_xp;
raw_touch_yp = touch_yp;
if (touched) {
AddLog(LOG_LEVEL_DEBUG_MORE, "TS : touched x=%i y=%i", touch_xp, touch_yp);
#ifdef USE_TOUCH_BUTTONS
#ifdef USE_M5STACK_CORE2
// handle 3 built in touch buttons
@ -165,6 +172,7 @@ void Touch_Check(void(*rotconvert)(int16_t *x, int16_t *y)) {
#endif // USE_TOUCH_BUTTONS
rotconvert(&touch_xp, &touch_yp);
AddLog(LOG_LEVEL_DEBUG_MORE, "TS : touched x=%i y=%i (raw x=%i y=%i)", touch_xp, touch_yp, raw_touch_xp, raw_touch_yp);
#ifdef USE_TOUCH_BUTTONS
CheckTouchButtons(touched, touch_xp, touch_yp);
@ -290,8 +298,8 @@ void CheckTouchButtons(bool touched, int16_t touch_x, int16_t touch_y) {
}
}
}
touch_xp = 0;
touch_yp = 0;
raw_touch_xp = touch_xp = 0;
raw_touch_yp = touch_yp = 0;
}
}
#endif // USE_TOUCH_BUTTONS
@ -321,7 +329,7 @@ bool Xdrv55(uint8_t function) {
#else // #if defined(USE_FT5206) || defined(USE_XPT2046) || defined(USE_LILYGO47) || defined(USE_TOUCH_BUTTONS)
// dummy for LVGL without a touch controller
uint32_t Touch_Status(uint32_t sel) {
uint32_t Touch_Status(int32_t sel) {
return 0;
}