2020-12-17 06:02:55 +00:00
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/**
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* @file lvgl_i2c_config.h
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*/
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#ifndef LVGL_I2C_CONF_H
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#define LVGL_I2C_CONF_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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2020-12-21 17:10:35 +00:00
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#ifdef LV_LVGL_H_INCLUDE_SIMPLE
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2020-12-17 06:02:55 +00:00
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#include "lvgl.h"
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#else
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#include "lvgl/lvgl.h"
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#endif
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/*********************
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* DEFINES
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*********************/
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/* TODO: Define the I2C bus clock based on the selected display or touch
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* controllers. */
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/* Do both display and touch controllers uses I2C? */
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#if defined (CONFIG_LV_TOUCH_DRIVER_PROTOCOL_I2C) && \
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defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_I2C)
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#if defined (CONFIG_LV_DISPLAY_I2C_PORT_0) && \
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defined (CONFIG_LV_TOUCH_I2C_PORT_0)
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#define SHARED_I2C_PORT
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#define DISP_I2C_PORT I2C_NUM_0
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#endif
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#if defined (CONFIG_LV_DISPLAY_I2C_PORT_1) && \
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defined (CONFIG_LV_TOUCH_I2C_PORT_1)
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#define SHARED_I2C_PORT
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#define DISP_I2C_PORT I2C_NUM_1
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#endif
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#if !defined (SHARED_I2C_PORT)
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#endif
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#endif
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#if defined (SHARED_I2C_PORT)
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/* If the port is shared the display and touch controllers must use the same
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* SCL and SDA pins, otherwise let the user know with an error. */
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#if (CONFIG_LV_DISP_PIN_SDA != CONFIG_LV_TOUCH_I2C_SDA) || \
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(CONFIG_LV_DISP_PIN_SCL != CONFIG_LV_TOUCH_I2C_SCL)
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#error "To share I2C port you need to choose the same SDA and SCL pins on both display and touch configurations"
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#endif
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#define DISP_I2C_SDA CONFIG_LV_DISP_PIN_SDA
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#define DISP_I2C_SCL CONFIG_LV_DISP_PIN_SCL
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#define DISP_I2C_ORIENTATION TFT_ORIENTATION_LANDSCAPE
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/* Setting the I2C speed to the slowest one */
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#if DISP_I2C_SPEED_HZ < TOUCH_I2C_SPEED_HZ
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#define DISP_I2C_SPEED_HZ 400000 /* DISP_I2C_SPEED_HZ */
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#else
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#define DISP_I2C_SPEED_HZ 400000 /* DISP_I2C_SPEED_HZ */
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#endif
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#else
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/* lets check if the touch controller uses I2C... */
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#if defined (CONFIG_LV_TOUCH_DRIVER_PROTOCOL_I2C)
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#if defined (CONFIG_LV_TOUCH_I2C_PORT_0)
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#define TOUCH_I2C_PORT I2C_NUM_0
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#else
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#define TOUCH_I2C_PORT I2C_NUM_1
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#endif
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#define TOUCH_I2C_SDA CONFIG_LV_TOUCH_I2C_SDA
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#define TOUCH_I2C_SCL CONFIG_LV_TOUCH_I2C_SCL
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#define TOUCH_I2C_SPEED_HZ 400000
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#endif
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/* lets check if the display controller uses I2C... */
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#if defined (CONFIG_LV_TFT_DISPLAY_PROTOCOL_I2C)
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#if defined (CONFIG_LV_DISPLAY_I2C_PORT_0)
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#define DISP_I2C_PORT I2C_NUM_0
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#else
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#define DISP_I2C_PORT I2C_NUM_1
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#endif
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#define DISP_I2C_SDA CONFIG_LV_DISP_PIN_SDA
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#define DISP_I2C_SCL CONFIG_LV_DISP_PIN_SCL
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#define DISP_I2C_ORIENTATION TFT_ORIENTATION_LANDSCAPE
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#define DISP_I2C_SPEED_HZ 400000
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#endif
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#endif
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**********************
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* MACROS
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**********************/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*LVGL_I2C_CONF_H*/
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