zenermerps/lvgl_esp32_drivers
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

added the implementation of CST816 touch sensor

Browse source
This commit is contained in:
Bassam 2022-08-07 00:31:06 +03:00
parent 26fe6e7703
commit ed2860239f
7 changed files with 247 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
CMakeLists.txt
View file

@ -73,6 +73,8 @@ if(CONFIG_LV_TOUCH_CONTROLLER)
list(APPEND SOURCES "lvgl_touch/ra8875_touch.c")
elseif(CONFIG_LV_TOUCH_CONTROLLER_GT911)
list(APPEND SOURCES "lvgl_touch/gt911.c")
elseif(CONFIG_LV_TOUCH_CONTROLLER_CST816)
list(APPEND SOURCES "lvgl_touch/CST816.c")
endif()
if(CONFIG_LV_TOUCH_DRIVER_PROTOCOL_SPI)
@ -86,7 +88,7 @@ endif()
idf_component_register(SRCS ${SOURCES}
INCLUDE_DIRS ${LVGL_INCLUDE_DIRS}
REQUIRES lvgl)
REQUIRES lvgl band_audio_hal)
target_compile_definitions(${COMPONENT_LIB} PUBLIC "-DLV_LVGL_H_INCLUDE_SIMPLE")

6
lvgl_helpers.h
View file

@ -34,6 +34,12 @@ extern "C" {
* color format being used, for RGB565 each pixel needs 2 bytes.
* When using the mono theme, the display pixels can be represented in one bit,
* so the buffer size can be divided by 8, e.g. see SSD1306 display size. */
//[BJ] Source: https://github.com/lvgl/lvgl_esp32_drivers/issues/202
# define LV_HOR_RES_MAX 320
# define LV_VER_RES_MAX 240
# define SPI_HOST_MAX 3
#if defined (CONFIG_CUSTOM_DISPLAY_BUFFER_SIZE)
#define DISP_BUF_SIZE CONFIG_CUSTOM_DISPLAY_BUFFER_BYTES
#else

132
lvgl_touch/CST816.c Normal file
View file

@ -0,0 +1,132 @@
/*
* Copyright © 2022 Band Industries Inc.
* Permission is hereby granted, free of charge, to any person obtaining a copy of this
* software and associated documentation files (the “Software”), to deal in the Software
* without restriction, including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
* to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <esp_log.h>
#ifdef LV_LVGL_H_INCLUDE_SIMPLE
#include <lvgl.h>
#else
#include <lvgl/lvgl.h>
#endif
#include "CST816.h"
#include "lvgl_i2c/i2c_manager.h"
#include "band_es8388.h"
#define TAG "CST816"
cst816_status_t cst816_status;
//[BJ] TODO: Below functions are ADF specific, if I am to contribute to main repo this needs to be resolved!
static esp_err_t _cst816_i2c_read(uint8_t slave_addr, uint8_t register_addr, uint8_t *data_buf, uint8_t len) {
return band_i2c_read(slave_addr, register_addr, data_buf, len);
//return lvgl_i2c_read(CONFIG_LV_I2C_TOUCH_PORT, slave_addr, register_addr | I2C_REG_16, data_buf, len);
}
static esp_err_t _cst816_i2c_write8(uint8_t slave_addr, uint8_t register_addr, uint8_t data) {
//uint8_t buffer = data;
return band_i2c_write(slave_addr, register_addr, &data, 1);
//return lvgl_i2c_write(CONFIG_LV_I2C_TOUCH_PORT, slave_addr, register_addr | I2C_REG_16, &buffer, 1);
}
/**
* @brief Initialize for cst816 communication via I2C
* @param dev_addr: Device address on communication Bus (I2C slave address of cst816).
* @retval None
*/
void cst816_init(uint8_t dev_addr) {
if (!cst816_status.inited)
{
cst816_status.i2c_dev_addr = dev_addr;
uint8_t version;
uint8_t versionInfo[3];
esp_err_t ret;
ESP_LOGI(TAG, "Initializing cst816 %d", dev_addr);
if ((ret = _cst816_i2c_read(dev_addr, 0x15, &version, 1) != ESP_OK))
{
ESP_LOGE(TAG, "Error reading version from device: %s",
esp_err_to_name(ret)); // Only show error the first time
return;
}
if ((ret = _cst816_i2c_read(dev_addr, 0xA7, versionInfo, 3) != ESP_OK))
{
ESP_LOGE(TAG, "Error reading versionInfo from device: %s",
esp_err_to_name(ret)); // Only show error the first time
return;
}
ESP_LOGI(TAG, "CST816 version %d, versionInfo: %d.%d.%d", version, versionInfo[0], versionInfo[1], versionInfo[2]);
cst816_status.inited = true;
}
}
/**
* @brief Get the touch screen X and Y positions values. Ignores multi touch
* @param drv:
* @param data: Store data here
* @retval Always false
*/
#define SWAPXY 1
#define INVERTX 1
#define INVERTY 0
bool cst816_read(lv_indev_drv_t *drv, lv_indev_data_t *data) {
uint8_t data_raw[8];
_cst816_i2c_read(cst816_status.i2c_dev_addr, 0x01, data_raw, 6);
uint8_t gestureID = data_raw[0];
uint8_t points = data_raw[1];
uint8_t event = data_raw[2] >> 6;
uint16_t point_x = 0;
uint16_t point_y = 0;
if(points == 0)
{
data->state = LV_INDEV_STATE_RELEASED;
return false;
}
data->state = LV_INDEV_STATE_PRESSED;
point_x = (data_raw[3] | ((data_raw[2] & 0x0F) << 8));
point_y = (data_raw[5] | ((data_raw[4] & 0x0F) << 8));
#if CONFIG_LV_SWAPXY_CST816
int temp;
temp = point_y;
point_y = point_x;
point_x = temp;
#endif
#if CONFIG_LV_INVERT_X_CST816
point_x = CONFIG_LV_TOUCH_X_MAX_CST816 - point_x;
#endif
#if CONFIG_LV_INVERT_Y_CST816
point_y = CONFIG_LV_TOUCH_Y_MAX_CST816 - point_y;
#endif
data->point.x = point_x;
data->point.y = point_y;
ESP_LOGI(TAG, "gestureID %d, points %d, event %d X=%u Y=%u", gestureID, points, event, data->point.x, data->point.y);
return false;
}

64
lvgl_touch/CST816.h Normal file
View file

@ -0,0 +1,64 @@
#ifndef __CST816_H
/*
* Copyright © 2022 Band Industries Inc.
* Permission is hereby granted, free of charge, to any person obtaining a copy of this
* software and associated documentation files (the “Software”), to deal in the Software
* without restriction, including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
* to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#define __CST816_H
#include <stdint.h>
#include <stdbool.h>
#ifdef LV_LVGL_H_INCLUDE_SIMPLE
#include "lvgl.h"
#else
#include "lvgl/lvgl.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define CST816_I2C_SLAVE_ADDR 0x15<<1
#define CST816_PRODUCT_ID_LEN 4
typedef struct {
bool inited;
uint8_t i2c_dev_addr;
} cst816_status_t;
/**
* @brief Initialize for cst816 communication via I2C
* @param dev_addr: Device address on communication Bus (I2C slave address of CST816).
* @retval None
*/
void cst816_init(uint8_t dev_addr);
/**
* @brief Get the touch screen X and Y positions values. Ignores multi touch
* @param drv:
* @param data: Store data here
* @retval Always false
*/
bool cst816_read(lv_indev_drv_t *drv, lv_indev_data_t *data);
#ifdef __cplusplus
}
#endif
#endif /* __CST816_H */

36
lvgl_touch/Kconfig
View file

@ -10,6 +10,7 @@ menu "LVGL Touch controller"
default 5 if LV_TOUCH_CONTROLLER_FT81X
default 6 if LV_TOUCH_CONTROLLER_RA8875
default 7 if LV_TOUCH_CONTROLLER_GT911
default 8 if LV_TOUCH_CONTROLLER_CST816
choice
prompt "Select a touch panel controller model."
@ -40,6 +41,9 @@ menu "LVGL Touch controller"
config LV_TOUCH_CONTROLLER_GT911
select LV_I2C_TOUCH
bool "GT911"
config LV_TOUCH_CONTROLLER_CST816
select LV_I2C_TOUCH
bool "CST816"
endchoice
config LV_TOUCH_DRIVER_PROTOCOL_SPI
@ -441,6 +445,38 @@ menu "LVGL Touch controller"
endmenu
menu "Touchpanel Configuration (CST816)"
depends on LV_TOUCH_CONTROLLER_CST816
config LV_TOUCH_X_MAX_CST816
int
prompt "Maximum X coordinate ADC value"
range 0 1023
default 320
config LV_TOUCH_Y_MAX_CST816
int
prompt "Maximum Y coordinate ADC value"
range 0 1023
default 240
config LV_SWAPXY_CST816
bool
prompt "Swap X with Y coordinate."
default y
config LV_INVERT_X_CST816
bool
prompt "Invert X coordinate value."
default y
config LV_INVERT_Y_CST816
bool
prompt "Invert Y coordinate value."
default n
endmenu
menu "Touchpanel Configuration (GT911)"
depends on LV_TOUCH_CONTROLLER_GT911

4
lvgl_touch/touch_driver.c
View file

@ -22,6 +22,8 @@ void touch_driver_init(void)
ra8875_touch_init();
#elif defined (CONFIG_LV_TOUCH_CONTROLLER_GT911)
gt911_init(GT911_I2C_SLAVE_ADDR);
#elif defined (CONFIG_LV_TOUCH_CONTROLLER_CST816)
cst816_init(CST816_I2C_SLAVE_ADDR);
#endif
}
@ -47,6 +49,8 @@ bool touch_driver_read(lv_indev_drv_t *drv, lv_indev_data_t *data)
res = ra8875_touch_read(drv, data);
#elif defined (CONFIG_LV_TOUCH_CONTROLLER_GT911)
res = gt911_read(drv, data);
#elif defined (CONFIG_LV_TOUCH_CONTROLLER_CST816)
res = cst816_read(drv, data);
#endif
#if LVGL_VERSION_MAJOR >= 8

2
lvgl_touch/touch_driver.h
View file

@ -34,6 +34,8 @@ extern "C" {
#include "ra8875_touch.h"
#elif defined (CONFIG_LV_TOUCH_CONTROLLER_GT911)
#include "gt911.h"
#elif defined (CONFIG_LV_TOUCH_CONTROLLER_CST816)
#include "CST816.h"
#endif
/*********************