commit 6bfc51062a40bef580e79c55a6b5060a696d722f Author: imi415 Date: Sat Jan 23 16:32:13 2021 +0000 Initial commit with driver and LittleVGL. diff --git a/.gitmodules b/.gitmodules new file mode 100644 index 0000000..e9a81d4 --- /dev/null +++ b/.gitmodules @@ -0,0 +1,3 @@ +[submodule "lib/LittleVGL"] + path = lib/LittleVGL + url = https://github.com/lvgl/lvgl.git diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..ed2deca --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,136 @@ +cmake_minimum_required(VERSION 3.12) + +project(lcd_jlx C) + +set(CMAKE_C_STANDARD 11) + +set(SOURCES + main.c + st75256_impl.c + user_tasks.c + tasks/task_lvgl.c + lib/st75256_lcd/st75256_lcd.c + lib/LittleVGL/src/lv_themes/lv_theme.c + lib/LittleVGL/src/lv_themes/lv_theme_empty.c + lib/LittleVGL/src/lv_themes/lv_theme_material.c + lib/LittleVGL/src/lv_themes/lv_theme_mono.c + lib/LittleVGL/src/lv_themes/lv_theme_template.c + lib/LittleVGL/src/lv_core/lv_indev.c + lib/LittleVGL/src/lv_core/lv_refr.c + lib/LittleVGL/src/lv_core/lv_style.c + lib/LittleVGL/src/lv_core/lv_obj.c + lib/LittleVGL/src/lv_core/lv_disp.c + lib/LittleVGL/src/lv_core/lv_group.c + lib/LittleVGL/src/lv_gpu/lv_gpu_nxp_pxp_osa.c + lib/LittleVGL/src/lv_gpu/lv_gpu_stm32_dma2d.c + lib/LittleVGL/src/lv_gpu/lv_gpu_nxp_pxp.c + lib/LittleVGL/src/lv_gpu/lv_gpu_nxp_vglite.c + lib/LittleVGL/src/lv_misc/lv_gc.c + lib/LittleVGL/src/lv_misc/lv_log.c + lib/LittleVGL/src/lv_misc/lv_printf.c + lib/LittleVGL/src/lv_misc/lv_bidi.c + lib/LittleVGL/src/lv_misc/lv_ll.c + lib/LittleVGL/src/lv_misc/lv_mem.c + lib/LittleVGL/src/lv_misc/lv_templ.c + lib/LittleVGL/src/lv_misc/lv_fs.c + lib/LittleVGL/src/lv_misc/lv_txt_ap.c + lib/LittleVGL/src/lv_misc/lv_txt.c + lib/LittleVGL/src/lv_misc/lv_task.c + lib/LittleVGL/src/lv_misc/lv_async.c + lib/LittleVGL/src/lv_misc/lv_math.c + lib/LittleVGL/src/lv_misc/lv_utils.c + lib/LittleVGL/src/lv_misc/lv_area.c + lib/LittleVGL/src/lv_misc/lv_debug.c + lib/LittleVGL/src/lv_misc/lv_anim.c + lib/LittleVGL/src/lv_misc/lv_color.c + lib/LittleVGL/src/lv_widgets/lv_objx_templ.c + lib/LittleVGL/src/lv_widgets/lv_table.c + lib/LittleVGL/src/lv_widgets/lv_btnmatrix.c + lib/LittleVGL/src/lv_widgets/lv_imgbtn.c + lib/LittleVGL/src/lv_widgets/lv_page.c + lib/LittleVGL/src/lv_widgets/lv_slider.c + lib/LittleVGL/src/lv_widgets/lv_cont.c + lib/LittleVGL/src/lv_widgets/lv_spinner.c + lib/LittleVGL/src/lv_widgets/lv_keyboard.c + lib/LittleVGL/src/lv_widgets/lv_list.c + lib/LittleVGL/src/lv_widgets/lv_label.c + lib/LittleVGL/src/lv_widgets/lv_bar.c + lib/LittleVGL/src/lv_widgets/lv_img.c + lib/LittleVGL/src/lv_widgets/lv_textarea.c + lib/LittleVGL/src/lv_widgets/lv_roller.c + lib/LittleVGL/src/lv_widgets/lv_chart.c + lib/LittleVGL/src/lv_widgets/lv_calendar.c + lib/LittleVGL/src/lv_widgets/lv_checkbox.c + lib/LittleVGL/src/lv_widgets/lv_linemeter.c + lib/LittleVGL/src/lv_widgets/lv_cpicker.c + lib/LittleVGL/src/lv_widgets/lv_tabview.c + lib/LittleVGL/src/lv_widgets/lv_led.c + lib/LittleVGL/src/lv_widgets/lv_switch.c + lib/LittleVGL/src/lv_widgets/lv_canvas.c + lib/LittleVGL/src/lv_widgets/lv_line.c + lib/LittleVGL/src/lv_widgets/lv_objmask.c + lib/LittleVGL/src/lv_widgets/lv_tileview.c + lib/LittleVGL/src/lv_widgets/lv_win.c + lib/LittleVGL/src/lv_widgets/lv_arc.c + lib/LittleVGL/src/lv_widgets/lv_btn.c + lib/LittleVGL/src/lv_widgets/lv_gauge.c + lib/LittleVGL/src/lv_widgets/lv_dropdown.c + lib/LittleVGL/src/lv_widgets/lv_msgbox.c + lib/LittleVGL/src/lv_widgets/lv_spinbox.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_34.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_38.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_32.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_26.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_22.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_24.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_46.c + lib/LittleVGL/src/lv_font/lv_font_dejavu_16_persian_hebrew.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_18.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_8.c + lib/LittleVGL/src/lv_font/lv_font_loader.c + lib/LittleVGL/src/lv_font/lv_font_simsun_16_cjk.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_30.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_36.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_48.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_12_subpx.c + lib/LittleVGL/src/lv_font/lv_font.c + lib/LittleVGL/src/lv_font/lv_font_unscii_8.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_42.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_40.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_12.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_10.c + lib/LittleVGL/src/lv_font/lv_font_fmt_txt.c + lib/LittleVGL/src/lv_font/lv_font_unscii_16.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_28.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_14.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_28_compressed.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_44.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_16.c + lib/LittleVGL/src/lv_font/lv_font_montserrat_20.c + lib/LittleVGL/src/lv_draw/lv_draw_triangle.c + lib/LittleVGL/src/lv_draw/lv_draw_img.c + lib/LittleVGL/src/lv_draw/lv_img_buf.c + lib/LittleVGL/src/lv_draw/lv_draw_arc.c + lib/LittleVGL/src/lv_draw/lv_draw_mask.c + lib/LittleVGL/src/lv_draw/lv_img_decoder.c + lib/LittleVGL/src/lv_draw/lv_draw_rect.c + lib/LittleVGL/src/lv_draw/lv_draw_line.c + lib/LittleVGL/src/lv_draw/lv_draw_blend.c + lib/LittleVGL/src/lv_draw/lv_draw_label.c + lib/LittleVGL/src/lv_draw/lv_img_cache.c + lib/LittleVGL/src/lv_hal/lv_hal_disp.c + lib/LittleVGL/src/lv_hal/lv_hal_indev.c + lib/LittleVGL/src/lv_hal/lv_hal_tick.c +) + +include_directories( + include + lib/st75256_lcd + lib/LittleVGL +) + +add_definitions(-DLV_CONF_SIMPLE -D_GNU_SOURCE) + +add_executable(lcd_jlx ${SOURCES}) + +target_link_libraries(lcd_jlx gpiod pthread) \ No newline at end of file diff --git a/include/config.h b/include/config.h new file mode 100644 index 0000000..b9e9973 --- /dev/null +++ b/include/config.h @@ -0,0 +1,24 @@ +#ifndef __CONFIG_H +#define __CONFIG_H + +#ifndef CONFIG_SPIDEV_FILENAME +#define CONFIG_SPIDEV_FILENAME "/dev/spidev0.0" +#endif + +#ifndef CONFIG_GPIO_CONSUMER +#define CONFIG_GPIO_CONSUMER "jlx_lcd" +#endif + +#ifndef CONFIG_GPIO_CHIP +#define CONFIG_GPIO_CHIP "/dev/gpiochip0" +#endif + +#ifndef CONFIG_RES_PIN +#define CONFIG_RES_PIN 27 +#endif + +#ifndef CONFIG_DC_PIN +#define CONFIG_DC_PIN 25 +#endif + +#endif \ No newline at end of file diff --git a/include/lv_conf.h b/include/lv_conf.h new file mode 100644 index 0000000..bb07c89 --- /dev/null +++ b/include/lv_conf.h @@ -0,0 +1,762 @@ +/** + * @file lv_conf.h + * Configuration file for v7.9.1 + */ + +/* + * COPY THIS FILE AS `lv_conf.h` NEXT TO the `lvgl` FOLDER + */ + +#if 1 /*Set it to "1" to enable content*/ + +#ifndef LV_CONF_H +#define LV_CONF_H +/* clang-format off */ + +#include + +/*==================== + Graphical settings + *====================*/ + +/* Maximal horizontal and vertical resolution to support by the library.*/ +#define LV_HOR_RES_MAX (256) +#define LV_VER_RES_MAX (128) + +/* Color depth: + * - 1: 1 byte per pixel + * - 8: RGB332 + * - 16: RGB565 + * - 32: ARGB8888 + */ +#define LV_COLOR_DEPTH 1 + +/* Swap the 2 bytes of RGB565 color. + * Useful if the display has a 8 bit interface (e.g. SPI)*/ +#define LV_COLOR_16_SWAP 0 + +/* 1: Enable screen transparency. + * Useful for OSD or other overlapping GUIs. + * Requires `LV_COLOR_DEPTH = 32` colors and the screen's style should be modified: `style.body.opa = ...`*/ +#define LV_COLOR_SCREEN_TRANSP 0 + +/*Images pixels with this color will not be drawn (with chroma keying)*/ +#define LV_COLOR_TRANSP LV_COLOR_LIME /*LV_COLOR_LIME: pure green*/ + +/* Enable anti-aliasing (lines, and radiuses will be smoothed) */ +#define LV_ANTIALIAS 1 + +/* Default display refresh period. + * Can be changed in the display driver (`lv_disp_drv_t`).*/ +#define LV_DISP_DEF_REFR_PERIOD 30 /*[ms]*/ + +/* Dot Per Inch: used to initialize default sizes. + * E.g. a button with width = LV_DPI / 2 -> half inch wide + * (Not so important, you can adjust it to modify default sizes and spaces)*/ +#define LV_DPI 130 /*[px]*/ + +/* The the real width of the display changes some default values: + * default object sizes, layout of examples, etc. + * According to the width of the display (hor. res. / dpi) + * the displays fall in 4 categories. + * The 4th is extra large which has no upper limit so not listed here + * The upper limit of the categories are set below in 0.1 inch unit. + */ +#define LV_DISP_SMALL_LIMIT 30 +#define LV_DISP_MEDIUM_LIMIT 50 +#define LV_DISP_LARGE_LIMIT 70 + +/* Type of coordinates. Should be `int16_t` (or `int32_t` for extreme cases) */ +typedef int16_t lv_coord_t; + +/*========================= + Memory manager settings + *=========================*/ + +/* LittelvGL's internal memory manager's settings. + * The graphical objects and other related data are stored here. */ + +/* 1: use custom malloc/free, 0: use the built-in `lv_mem_alloc` and `lv_mem_free` */ +#define LV_MEM_CUSTOM 1 +#if LV_MEM_CUSTOM == 0 +/* Size of the memory used by `lv_mem_alloc` in bytes (>= 2kB)*/ +# define LV_MEM_SIZE (32U * 1024U) + +/* Compiler prefix for a big array declaration */ +# define LV_MEM_ATTR + +/* Set an address for the memory pool instead of allocating it as an array. + * Can be in external SRAM too. */ +# define LV_MEM_ADR 0 + +/* Automatically defrag. on free. Defrag. means joining the adjacent free cells. */ +# define LV_MEM_AUTO_DEFRAG 1 +#else /*LV_MEM_CUSTOM*/ +# define LV_MEM_CUSTOM_INCLUDE /*Header for the dynamic memory function*/ +# define LV_MEM_CUSTOM_ALLOC malloc /*Wrapper to malloc*/ +# define LV_MEM_CUSTOM_FREE free /*Wrapper to free*/ +#endif /*LV_MEM_CUSTOM*/ + +/* Use the standard memcpy and memset instead of LVGL's own functions. + * The standard functions might or might not be faster depending on their implementation. */ +#define LV_MEMCPY_MEMSET_STD 1 + +/* Garbage Collector settings + * Used if lvgl is binded to higher level language and the memory is managed by that language */ +#define LV_ENABLE_GC 0 +#if LV_ENABLE_GC != 0 +# define LV_GC_INCLUDE "gc.h" /*Include Garbage Collector related things*/ +# define LV_MEM_CUSTOM_REALLOC your_realloc /*Wrapper to realloc*/ +# define LV_MEM_CUSTOM_GET_SIZE your_mem_get_size /*Wrapper to lv_mem_get_size*/ +#endif /* LV_ENABLE_GC */ + +/*======================= + Input device settings + *=======================*/ + +/* Input device default settings. + * Can be changed in the Input device driver (`lv_indev_drv_t`)*/ + +/* Input device read period in milliseconds */ +#define LV_INDEV_DEF_READ_PERIOD 30 + +/* Drag threshold in pixels */ +#define LV_INDEV_DEF_DRAG_LIMIT 10 + +/* Drag throw slow-down in [%]. Greater value -> faster slow-down */ +#define LV_INDEV_DEF_DRAG_THROW 10 + +/* Long press time in milliseconds. + * Time to send `LV_EVENT_LONG_PRESSED`) */ +#define LV_INDEV_DEF_LONG_PRESS_TIME 400 + +/* Repeated trigger period in long press [ms] + * Time between `LV_EVENT_LONG_PRESSED_REPEAT */ +#define LV_INDEV_DEF_LONG_PRESS_REP_TIME 100 + +/* Gesture threshold in pixels */ +#define LV_INDEV_DEF_GESTURE_LIMIT 50 + +/* Gesture min velocity at release before swipe (pixels)*/ +#define LV_INDEV_DEF_GESTURE_MIN_VELOCITY 3 + +/*================== + * Feature usage + *==================*/ + +/*1: Enable the Animations */ +#define LV_USE_ANIMATION 1 +#if LV_USE_ANIMATION + +/*Declare the type of the user data of animations (can be e.g. `void *`, `int`, `struct`)*/ +typedef void * lv_anim_user_data_t; + +#endif + +/* 1: Enable shadow drawing on rectangles*/ +#define LV_USE_SHADOW 1 +#if LV_USE_SHADOW +/* Allow buffering some shadow calculation + * LV_SHADOW_CACHE_SIZE is the max. shadow size to buffer, + * where shadow size is `shadow_width + radius` + * Caching has LV_SHADOW_CACHE_SIZE^2 RAM cost*/ +#define LV_SHADOW_CACHE_SIZE 0 +#endif + +/*1: enable outline drawing on rectangles*/ +#define LV_USE_OUTLINE 1 + +/*1: enable pattern drawing on rectangles*/ +#define LV_USE_PATTERN 1 + +/*1: enable value string drawing on rectangles*/ +#define LV_USE_VALUE_STR 1 + +/* 1: Use other blend modes than normal (`LV_BLEND_MODE_...`)*/ +#define LV_USE_BLEND_MODES 1 + +/* 1: Use the `opa_scale` style property to set the opacity of an object and its children at once*/ +#define LV_USE_OPA_SCALE 1 + +/* 1: Use image zoom and rotation*/ +#define LV_USE_IMG_TRANSFORM 1 + +/* 1: Enable object groups (for keyboard/encoder navigation) */ +#define LV_USE_GROUP 1 +#if LV_USE_GROUP +typedef void * lv_group_user_data_t; +#endif /*LV_USE_GROUP*/ + +/* 1: Enable GPU interface*/ +#define LV_USE_GPU 1 /*Only enables `gpu_fill_cb` and `gpu_blend_cb` in the disp. drv- */ +#define LV_USE_GPU_STM32_DMA2D 0 +/*If enabling LV_USE_GPU_STM32_DMA2D, LV_GPU_DMA2D_CMSIS_INCLUDE must be defined to include path of CMSIS header of target processor +e.g. "stm32f769xx.h" or "stm32f429xx.h" */ +#define LV_GPU_DMA2D_CMSIS_INCLUDE + +/*1: Use PXP for CPU off-load on NXP RTxxx platforms */ +#define LV_USE_GPU_NXP_PXP 0 + +/*1: Add default bare metal and FreeRTOS interrupt handling routines for PXP (lv_gpu_nxp_pxp_osa.c) + * and call lv_gpu_nxp_pxp_init() automatically during lv_init(). Note that symbol FSL_RTOS_FREE_RTOS + * has to be defined in order to use FreeRTOS OSA, otherwise bare-metal implementation is selected. + *0: lv_gpu_nxp_pxp_init() has to be called manually before lv_init() + * */ +#define LV_USE_GPU_NXP_PXP_AUTO_INIT 0 + +/*1: Use VG-Lite for CPU offload on NXP RTxxx platforms */ +#define LV_USE_GPU_NXP_VG_LITE 0 + +/* 1: Enable file system (might be required for images */ +#define LV_USE_FILESYSTEM 1 +#if LV_USE_FILESYSTEM +/*Declare the type of the user data of file system drivers (can be e.g. `void *`, `int`, `struct`)*/ +typedef void * lv_fs_drv_user_data_t; +#endif + +/*1: Add a `user_data` to drivers and objects*/ +#define LV_USE_USER_DATA 0 + +/*1: Show CPU usage and FPS count in the right bottom corner*/ +#define LV_USE_PERF_MONITOR 0 + +/*1: Use the functions and types from the older API if possible */ +#define LV_USE_API_EXTENSION_V6 1 +#define LV_USE_API_EXTENSION_V7 1 + +/*======================== + * Image decoder and cache + *========================*/ + +/* 1: Enable indexed (palette) images */ +#define LV_IMG_CF_INDEXED 1 + +/* 1: Enable alpha indexed images */ +#define LV_IMG_CF_ALPHA 1 + +/* Default image cache size. Image caching keeps the images opened. + * If only the built-in image formats are used there is no real advantage of caching. + * (I.e. no new image decoder is added) + * With complex image decoders (e.g. PNG or JPG) caching can save the continuous open/decode of images. + * However the opened images might consume additional RAM. + * Set it to 0 to disable caching */ +#define LV_IMG_CACHE_DEF_SIZE 1 + +/*Declare the type of the user data of image decoder (can be e.g. `void *`, `int`, `struct`)*/ +typedef void * lv_img_decoder_user_data_t; + +/*===================== + * Compiler settings + *====================*/ + +/* For big endian systems set to 1 */ +#define LV_BIG_ENDIAN_SYSTEM 0 + +/* Define a custom attribute to `lv_tick_inc` function */ +#define LV_ATTRIBUTE_TICK_INC + +/* Define a custom attribute to `lv_task_handler` function */ +#define LV_ATTRIBUTE_TASK_HANDLER + +/* Define a custom attribute to `lv_disp_flush_ready` function */ +#define LV_ATTRIBUTE_FLUSH_READY + +/* Required alignment size for buffers */ +#define LV_ATTRIBUTE_MEM_ALIGN_SIZE + +/* With size optimization (-Os) the compiler might not align data to + * 4 or 8 byte boundary. Some HW may need even 32 or 64 bytes. + * This alignment will be explicitly applied where needed. + * LV_ATTRIBUTE_MEM_ALIGN_SIZE should be used to specify required align size. + * E.g. __attribute__((aligned(LV_ATTRIBUTE_MEM_ALIGN_SIZE))) */ +#define LV_ATTRIBUTE_MEM_ALIGN + +/* Attribute to mark large constant arrays for example + * font's bitmaps */ +#define LV_ATTRIBUTE_LARGE_CONST + +/* Prefix performance critical functions to place them into a faster memory (e.g RAM) + * Uses 15-20 kB extra memory */ +#define LV_ATTRIBUTE_FAST_MEM + +/* Export integer constant to binding. + * This macro is used with constants in the form of LV_ that + * should also appear on lvgl binding API such as Micropython + * + * The default value just prevents a GCC warning. + */ +#define LV_EXPORT_CONST_INT(int_value) struct _silence_gcc_warning + +/* Prefix variables that are used in GPU accelerated operations, often these need to be + * placed in RAM sections that are DMA accessible */ +#define LV_ATTRIBUTE_DMA + +/*=================== + * HAL settings + *==================*/ + +/* 1: use a custom tick source. + * It removes the need to manually update the tick with `lv_tick_inc`) */ +#define LV_TICK_CUSTOM 0 +#if LV_TICK_CUSTOM == 1 +#define LV_TICK_CUSTOM_INCLUDE "Arduino.h" /*Header for the system time function*/ +#define LV_TICK_CUSTOM_SYS_TIME_EXPR (millis()) /*Expression evaluating to current system time in ms*/ +#endif /*LV_TICK_CUSTOM*/ + +typedef void * lv_disp_drv_user_data_t; /*Type of user data in the display driver*/ +typedef void * lv_indev_drv_user_data_t; /*Type of user data in the input device driver*/ + +/*================ + * Log settings + *===============*/ + +/*1: Enable the log module*/ +#define LV_USE_LOG 0 +#if LV_USE_LOG +/* How important log should be added: + * LV_LOG_LEVEL_TRACE A lot of logs to give detailed information + * LV_LOG_LEVEL_INFO Log important events + * LV_LOG_LEVEL_WARN Log if something unwanted happened but didn't cause a problem + * LV_LOG_LEVEL_ERROR Only critical issue, when the system may fail + * LV_LOG_LEVEL_NONE Do not log anything + */ +# define LV_LOG_LEVEL LV_LOG_LEVEL_WARN + +/* 1: Print the log with 'printf'; + * 0: user need to register a callback with `lv_log_register_print_cb`*/ +# define LV_LOG_PRINTF 0 +#endif /*LV_USE_LOG*/ + +/*================= + * Debug settings + *================*/ + +/* If Debug is enabled LittelvGL validates the parameters of the functions. + * If an invalid parameter is found an error log message is printed and + * the MCU halts at the error. (`LV_USE_LOG` should be enabled) + * If you are debugging the MCU you can pause + * the debugger to see exactly where the issue is. + * + * The behavior of asserts can be overwritten by redefining them here. + * E.g. #define LV_ASSERT_MEM(p) + */ +#define LV_USE_DEBUG 1 +#if LV_USE_DEBUG + +/*Check if the parameter is NULL. (Quite fast) */ +#define LV_USE_ASSERT_NULL 1 + +/*Checks is the memory is successfully allocated or no. (Quite fast)*/ +#define LV_USE_ASSERT_MEM 1 + +/*Check the integrity of `lv_mem` after critical operations. (Slow)*/ +#define LV_USE_ASSERT_MEM_INTEGRITY 0 + +/* Check the strings. + * Search for NULL, very long strings, invalid characters, and unnatural repetitions. (Slow) + * If disabled `LV_USE_ASSERT_NULL` will be performed instead (if it's enabled) */ +#define LV_USE_ASSERT_STR 0 + +/* Check NULL, the object's type and existence (e.g. not deleted). (Quite slow) + * If disabled `LV_USE_ASSERT_NULL` will be performed instead (if it's enabled) */ +#define LV_USE_ASSERT_OBJ 0 + +/*Check if the styles are properly initialized. (Fast)*/ +#define LV_USE_ASSERT_STYLE 0 + +#endif /*LV_USE_DEBUG*/ + +/*================== + * FONT USAGE + *===================*/ + +/* The built-in fonts contains the ASCII range and some Symbols with 4 bit-per-pixel. + * The symbols are available via `LV_SYMBOL_...` defines + * More info about fonts: https://docs.lvgl.io/v7/en/html/overview/font.html + * To create a new font go to: https://lvgl.com/ttf-font-to-c-array + */ + +/* Montserrat fonts with bpp = 4 + * https://fonts.google.com/specimen/Montserrat */ +#define LV_FONT_MONTSERRAT_8 0 +#define LV_FONT_MONTSERRAT_10 0 +#define LV_FONT_MONTSERRAT_12 0 +#define LV_FONT_MONTSERRAT_14 1 +#define LV_FONT_MONTSERRAT_16 0 +#define LV_FONT_MONTSERRAT_18 0 +#define LV_FONT_MONTSERRAT_20 0 +#define LV_FONT_MONTSERRAT_22 0 +#define LV_FONT_MONTSERRAT_24 0 +#define LV_FONT_MONTSERRAT_26 0 +#define LV_FONT_MONTSERRAT_28 0 +#define LV_FONT_MONTSERRAT_30 0 +#define LV_FONT_MONTSERRAT_32 0 +#define LV_FONT_MONTSERRAT_34 0 +#define LV_FONT_MONTSERRAT_36 0 +#define LV_FONT_MONTSERRAT_38 0 +#define LV_FONT_MONTSERRAT_40 0 +#define LV_FONT_MONTSERRAT_42 0 +#define LV_FONT_MONTSERRAT_44 0 +#define LV_FONT_MONTSERRAT_46 0 +#define LV_FONT_MONTSERRAT_48 0 + +/* Demonstrate special features */ +#define LV_FONT_MONTSERRAT_12_SUBPX 0 +#define LV_FONT_MONTSERRAT_28_COMPRESSED 0 /*bpp = 3*/ +#define LV_FONT_DEJAVU_16_PERSIAN_HEBREW 0 /*Hebrew, Arabic, PErisan letters and all their forms*/ +#define LV_FONT_SIMSUN_16_CJK 0 /*1000 most common CJK radicals*/ + +/*Pixel perfect monospace font + * http://pelulamu.net/unscii/ */ +#define LV_FONT_UNSCII_8 0 +#define LV_FONT_UNSCII_16 0 + +/* Optionally declare your custom fonts here. + * You can use these fonts as default font too + * and they will be available globally. E.g. + * #define LV_FONT_CUSTOM_DECLARE LV_FONT_DECLARE(my_font_1) \ + * LV_FONT_DECLARE(my_font_2) + */ +#define LV_FONT_CUSTOM_DECLARE + +/* Enable it if you have fonts with a lot of characters. + * The limit depends on the font size, font face and bpp + * but with > 10,000 characters if you see issues probably you need to enable it.*/ +#define LV_FONT_FMT_TXT_LARGE 0 + +/* Enables/disables support for compressed fonts. If it's disabled, compressed + * glyphs cannot be processed by the library and won't be rendered. + */ +#define LV_USE_FONT_COMPRESSED 1 + +/* Enable subpixel rendering */ +#define LV_USE_FONT_SUBPX 1 +#if LV_USE_FONT_SUBPX +/* Set the pixel order of the display. + * Important only if "subpx fonts" are used. + * With "normal" font it doesn't matter. + */ +#define LV_FONT_SUBPX_BGR 0 +#endif + +/*Declare the type of the user data of fonts (can be e.g. `void *`, `int`, `struct`)*/ +typedef void * lv_font_user_data_t; + +/*================ + * THEME USAGE + *================*/ + +/*Always enable at least on theme*/ + +/* No theme, you can apply your styles as you need + * No flags. Set LV_THEME_DEFAULT_FLAG 0 */ +#define LV_USE_THEME_EMPTY 1 + +/*Simple to the create your theme based on it + * No flags. Set LV_THEME_DEFAULT_FLAG 0 */ +#define LV_USE_THEME_TEMPLATE 1 + +/* A fast and impressive theme. + * Flags: + * LV_THEME_MATERIAL_FLAG_LIGHT: light theme + * LV_THEME_MATERIAL_FLAG_DARK: dark theme + * LV_THEME_MATERIAL_FLAG_NO_TRANSITION: disable transitions (state change animations) + * LV_THEME_MATERIAL_FLAG_NO_FOCUS: disable indication of focused state) + * */ +#define LV_USE_THEME_MATERIAL 1 + +/* Mono-color theme for monochrome displays. + * If LV_THEME_DEFAULT_COLOR_PRIMARY is LV_COLOR_BLACK the + * texts and borders will be black and the background will be + * white. Else the colors are inverted. + * No flags. Set LV_THEME_DEFAULT_FLAG 0 */ +#define LV_USE_THEME_MONO 1 + +#define LV_THEME_DEFAULT_INCLUDE /*Include a header for the init. function*/ +#define LV_THEME_DEFAULT_INIT lv_theme_material_init +#define LV_THEME_DEFAULT_COLOR_PRIMARY lv_color_hex(0x01a2b1) +#define LV_THEME_DEFAULT_COLOR_SECONDARY lv_color_hex(0x44d1b6) +#define LV_THEME_DEFAULT_FLAG LV_THEME_MATERIAL_FLAG_LIGHT +#define LV_THEME_DEFAULT_FONT_SMALL &lv_font_montserrat_14 +#define LV_THEME_DEFAULT_FONT_NORMAL &lv_font_montserrat_14 +#define LV_THEME_DEFAULT_FONT_SUBTITLE &lv_font_montserrat_14 +#define LV_THEME_DEFAULT_FONT_TITLE &lv_font_montserrat_14 + +/*================= + * Text settings + *=================*/ + +/* Select a character encoding for strings. + * Your IDE or editor should have the same character encoding + * - LV_TXT_ENC_UTF8 + * - LV_TXT_ENC_ASCII + * */ +#define LV_TXT_ENC LV_TXT_ENC_UTF8 + + /*Can break (wrap) texts on these chars*/ +#define LV_TXT_BREAK_CHARS " ,.;:-_" + +/* If a word is at least this long, will break wherever "prettiest" + * To disable, set to a value <= 0 */ +#define LV_TXT_LINE_BREAK_LONG_LEN 0 + +/* Minimum number of characters in a long word to put on a line before a break. + * Depends on LV_TXT_LINE_BREAK_LONG_LEN. */ +#define LV_TXT_LINE_BREAK_LONG_PRE_MIN_LEN 3 + +/* Minimum number of characters in a long word to put on a line after a break. + * Depends on LV_TXT_LINE_BREAK_LONG_LEN. */ +#define LV_TXT_LINE_BREAK_LONG_POST_MIN_LEN 3 + +/* The control character to use for signalling text recoloring. */ +#define LV_TXT_COLOR_CMD "#" + +/* Support bidirectional texts. + * Allows mixing Left-to-Right and Right-to-Left texts. + * The direction will be processed according to the Unicode Bidirectional Algorithm: + * https://www.w3.org/International/articles/inline-bidi-markup/uba-basics*/ +#define LV_USE_BIDI 0 +#if LV_USE_BIDI +/* Set the default direction. Supported values: + * `LV_BIDI_DIR_LTR` Left-to-Right + * `LV_BIDI_DIR_RTL` Right-to-Left + * `LV_BIDI_DIR_AUTO` detect texts base direction */ +#define LV_BIDI_BASE_DIR_DEF LV_BIDI_DIR_AUTO +#endif + +/* Enable Arabic/Persian processing + * In these languages characters should be replaced with + * an other form based on their position in the text */ +#define LV_USE_ARABIC_PERSIAN_CHARS 0 + +/*Change the built in (v)snprintf functions*/ +#define LV_SPRINTF_CUSTOM 0 +#if LV_SPRINTF_CUSTOM +# define LV_SPRINTF_INCLUDE +# define lv_snprintf snprintf +# define lv_vsnprintf vsnprintf +#else /*!LV_SPRINTF_CUSTOM*/ +# define LV_SPRINTF_DISABLE_FLOAT 1 +#endif /*LV_SPRINTF_CUSTOM*/ + +/*=================== + * LV_OBJ SETTINGS + *==================*/ + +#if LV_USE_USER_DATA +/*Declare the type of the user data of object (can be e.g. `void *`, `int`, `struct`)*/ +typedef void * lv_obj_user_data_t; +/*Provide a function to free user data*/ +#define LV_USE_USER_DATA_FREE 0 +#if LV_USE_USER_DATA_FREE +# define LV_USER_DATA_FREE_INCLUDE "something.h" /*Header for user data free function*/ +/* Function prototype : void user_data_free(lv_obj_t * obj); */ +# define LV_USER_DATA_FREE (user_data_free) /*Invoking for user data free function*/ +#endif +#endif + +/*1: enable `lv_obj_realign()` based on `lv_obj_align()` parameters*/ +#define LV_USE_OBJ_REALIGN 1 + +/* Enable to make the object clickable on a larger area. + * LV_EXT_CLICK_AREA_OFF or 0: Disable this feature + * LV_EXT_CLICK_AREA_TINY: The extra area can be adjusted horizontally and vertically (0..255 px) + * LV_EXT_CLICK_AREA_FULL: The extra area can be adjusted in all 4 directions (-32k..+32k px) + */ +#define LV_USE_EXT_CLICK_AREA LV_EXT_CLICK_AREA_TINY + +/*================== + * LV OBJ X USAGE + *================*/ +/* + * Documentation of the object types: https://docs.lvgl.com/#Object-types + */ + +/*Arc (dependencies: -)*/ +#define LV_USE_ARC 1 + +/*Bar (dependencies: -)*/ +#define LV_USE_BAR 1 + +/*Button (dependencies: lv_cont*/ +#define LV_USE_BTN 1 + +/*Button matrix (dependencies: -)*/ +#define LV_USE_BTNMATRIX 1 + +/*Calendar (dependencies: -)*/ +#define LV_USE_CALENDAR 1 +#if LV_USE_CALENDAR +# define LV_CALENDAR_WEEK_STARTS_MONDAY 0 +#endif + +/*Canvas (dependencies: lv_img)*/ +#define LV_USE_CANVAS 1 + +/*Check box (dependencies: lv_btn, lv_label)*/ +#define LV_USE_CHECKBOX 1 + +/*Chart (dependencies: -)*/ +#define LV_USE_CHART 1 +#if LV_USE_CHART +# define LV_CHART_AXIS_TICK_LABEL_MAX_LEN 256 +#endif + +/*Container (dependencies: -*/ +#define LV_USE_CONT 1 + +/*Color picker (dependencies: -*/ +#define LV_USE_CPICKER 1 + +/*Drop down list (dependencies: lv_page, lv_label, lv_symbol_def.h)*/ +#define LV_USE_DROPDOWN 1 +#if LV_USE_DROPDOWN != 0 +/*Open and close default animation time [ms] (0: no animation)*/ +# define LV_DROPDOWN_DEF_ANIM_TIME 200 +#endif + +/*Gauge (dependencies:lv_bar, lv_linemeter)*/ +#define LV_USE_GAUGE 1 + +/*Image (dependencies: lv_label*/ +#define LV_USE_IMG 1 + +/*Image Button (dependencies: lv_btn*/ +#define LV_USE_IMGBTN 1 +#if LV_USE_IMGBTN +/*1: The imgbtn requires left, mid and right parts and the width can be set freely*/ +# define LV_IMGBTN_TILED 0 +#endif + +/*Keyboard (dependencies: lv_btnm)*/ +#define LV_USE_KEYBOARD 1 + +/*Label (dependencies: -*/ +#define LV_USE_LABEL 1 +#if LV_USE_LABEL != 0 +/*Hor, or ver. scroll speed [px/sec] in 'LV_LABEL_LONG_ROLL/ROLL_CIRC' mode*/ +# define LV_LABEL_DEF_SCROLL_SPEED 25 + +/* Waiting period at beginning/end of animation cycle */ +# define LV_LABEL_WAIT_CHAR_COUNT 3 + +/*Enable selecting text of the label */ +# define LV_LABEL_TEXT_SEL 0 + +/*Store extra some info in labels (12 bytes) to speed up drawing of very long texts*/ +# define LV_LABEL_LONG_TXT_HINT 0 +#endif + +/*LED (dependencies: -)*/ +#define LV_USE_LED 1 +#if LV_USE_LED +# define LV_LED_BRIGHT_MIN 120 /*Minimal brightness*/ +# define LV_LED_BRIGHT_MAX 255 /*Maximal brightness*/ +#endif + +/*Line (dependencies: -*/ +#define LV_USE_LINE 1 + +/*List (dependencies: lv_page, lv_btn, lv_label, (lv_img optionally for icons ))*/ +#define LV_USE_LIST 1 +#if LV_USE_LIST != 0 +/*Default animation time of focusing to a list element [ms] (0: no animation) */ +# define LV_LIST_DEF_ANIM_TIME 100 +#endif + +/*Line meter (dependencies: *;)*/ +#define LV_USE_LINEMETER 1 +#if LV_USE_LINEMETER +/* Draw line more precisely at cost of performance. + * Useful if there are lot of lines any minor are visible + * 0: No extra precision + * 1: Some extra precision + * 2: Best precision + */ +# define LV_LINEMETER_PRECISE 1 +#endif + +/*Mask (dependencies: -)*/ +#define LV_USE_OBJMASK 1 + +/*Message box (dependencies: lv_rect, lv_btnm, lv_label)*/ +#define LV_USE_MSGBOX 1 + +/*Page (dependencies: lv_cont)*/ +#define LV_USE_PAGE 1 +#if LV_USE_PAGE != 0 +/*Focus default animation time [ms] (0: no animation)*/ +# define LV_PAGE_DEF_ANIM_TIME 400 +#endif + +/*Preload (dependencies: lv_arc, lv_anim)*/ +#define LV_USE_SPINNER 1 +#if LV_USE_SPINNER != 0 +# define LV_SPINNER_DEF_ARC_LENGTH 60 /*[deg]*/ +# define LV_SPINNER_DEF_SPIN_TIME 1000 /*[ms]*/ +# define LV_SPINNER_DEF_ANIM LV_SPINNER_TYPE_SPINNING_ARC +#endif + +/*Roller (dependencies: lv_ddlist)*/ +#define LV_USE_ROLLER 1 +#if LV_USE_ROLLER != 0 +/*Focus animation time [ms] (0: no animation)*/ +# define LV_ROLLER_DEF_ANIM_TIME 200 + +/*Number of extra "pages" when the roller is infinite*/ +# define LV_ROLLER_INF_PAGES 7 +#endif + +/*Slider (dependencies: lv_bar)*/ +#define LV_USE_SLIDER 1 + +/*Spinbox (dependencies: lv_ta)*/ +#define LV_USE_SPINBOX 1 + +/*Switch (dependencies: lv_slider)*/ +#define LV_USE_SWITCH 1 + +/*Text area (dependencies: lv_label, lv_page)*/ +#define LV_USE_TEXTAREA 1 +#if LV_USE_TEXTAREA != 0 +# define LV_TEXTAREA_DEF_CURSOR_BLINK_TIME 400 /*ms*/ +# define LV_TEXTAREA_DEF_PWD_SHOW_TIME 1500 /*ms*/ +#endif + +/*Table (dependencies: lv_label)*/ +#define LV_USE_TABLE 1 +#if LV_USE_TABLE +# define LV_TABLE_COL_MAX 12 +# define LV_TABLE_CELL_STYLE_CNT 4 +#endif + +/*Tab (dependencies: lv_page, lv_btnm)*/ +#define LV_USE_TABVIEW 1 +# if LV_USE_TABVIEW != 0 +/*Time of slide animation [ms] (0: no animation)*/ +# define LV_TABVIEW_DEF_ANIM_TIME 300 +#endif + +/*Tileview (dependencies: lv_page) */ +#define LV_USE_TILEVIEW 1 +#if LV_USE_TILEVIEW +/*Time of slide animation [ms] (0: no animation)*/ +# define LV_TILEVIEW_DEF_ANIM_TIME 300 +#endif + +/*Window (dependencies: lv_cont, lv_btn, lv_label, lv_img, lv_page)*/ +#define LV_USE_WIN 1 + +/*================== + * Non-user section + *==================*/ + +#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS) /* Disable warnings for Visual Studio*/ +# define _CRT_SECURE_NO_WARNINGS +#endif + +/*--END OF LV_CONF_H--*/ + +#endif /*LV_CONF_H*/ + +#endif /*End of "Content enable"*/ diff --git a/include/st75256_impl.h b/include/st75256_impl.h new file mode 100644 index 0000000..85815a1 --- /dev/null +++ b/include/st75256_impl.h @@ -0,0 +1,32 @@ +#ifndef __lcd_impl_IMPL_H +#define __lcd_impl_IMPL_H + +// SPIDEV +#include +#include +#include +#include +#include + +// LIBGPIOD +#include + +// USER +#include "st75256_lcd.h" +#include "config.h" + +typedef struct { + int spi_fd; + struct gpiod_chip *gpio_chip; + struct gpiod_line *gpio_line_res; + struct gpiod_line *gpio_line_dc; +} _st75256_impl_t; + +_st75256_impl_t *_lcd_impl_init(void); +int _lcd_impl_deinit(_st75256_impl_t *handle); +st75256_ret_t _lcd_impl_write_cmd(void *handle, uint8_t *cmd, uint8_t len); +st75256_ret_t _lcd_impl_write_data(void *handle, uint8_t *data, uint16_t len); +st75256_ret_t _lcd_impl_reset(void *handle); +st75256_ret_t _lcd_impl_delay(void *handle, uint32_t usec); + +#endif \ No newline at end of file diff --git a/include/user_tasks.h b/include/user_tasks.h new file mode 100644 index 0000000..95008a8 --- /dev/null +++ b/include/user_tasks.h @@ -0,0 +1,17 @@ +#ifndef __USER_TASKS_H +#define __USER_TASKS_H + +#include + +void user_tasks_init(void); +void user_tasks_loop(void); +void user_tasks_deinit(void); + +int lvgl_task_init(void); +int lvgl_task_deinit(void); +extern pthread_t lvgl_tick_thread_handle; +void *lvgl_tick_thread(void *arguments); +extern pthread_t lvgl_task_thread_handle; +void *lvgl_task_thread(void *arguments); + +#endif \ No newline at end of file diff --git a/lib/LittleVGL b/lib/LittleVGL new file mode 160000 index 0000000..0aefab3 --- /dev/null +++ b/lib/LittleVGL @@ -0,0 +1 @@ +Subproject commit 0aefab358b1c43f1dbb03cb65160f395032dc00d diff --git a/lib/st75256_lcd/st75256_lcd.c b/lib/st75256_lcd/st75256_lcd.c new file mode 100644 index 0000000..86ae3cf --- /dev/null +++ b/lib/st75256_lcd/st75256_lcd.c @@ -0,0 +1,72 @@ +#include "st75256_lcd.h" + +uint8_t jlx_25664_init_sequence[] = { + 0x00, 0x30, + 0x00, 0x94, + 0x00, 0x31, + 0x01, 0xD7, 0x9F, + 0x03, 0x32, 0x00, 0x01, 0x03, + 0x10, 0x20, 0x01, 0x03, 0x05, 0x07, 0x09, 0x0B, 0x0D, 0x10, 0x11, 0x13, 0x15, 0x17, 0x19, 0x1B, 0x1D, 0x1F, + 0x00, 0x30, + 0x02, 0x75, 0x00, 0x14, + 0x02, 0x15, 0x00, 0xFF, + 0x02, 0xBC, 0x00, 0xA6, + 0x03, 0xCA, 0x00, 0x9F, 0x20, + 0x01, 0xF0, 0x10, + 0x02, 0x81, 0x36, 0x04, + 0x01, 0x20, 0x0B +}; + +st75256_ret_t _st75256_hardware_reset(st75256_t *lcd) { + ST75256_ERROR_CHECK(lcd->cb.reset_cb(lcd->user_data)); + return ST75256_OK; +} + +st75256_ret_t _st75256_init_seq(st75256_t *lcd) { + uint16_t i = 0; + + while(i < sizeof(ST75256_PANEL_SELECTION)) { + ST75256_ERROR_CHECK(lcd->cb.write_cmd_cb(lcd->user_data, &ST75256_PANEL_SELECTION[i + 1], ST75256_PANEL_SELECTION[i] + 1)); + i += ST75256_PANEL_SELECTION[i] + 2; + } + + return ST75256_OK; +} + +st75256_ret_t _st75256_display_on(st75256_t *lcd) { + uint8_t cmd = 0xAF; + ST75256_ERROR_CHECK(lcd->cb.write_cmd_cb(lcd->user_data, &cmd, 0x01)); +} + +st75256_ret_t st75256_init(st75256_t *lcd) { + ST75256_ERROR_CHECK(_st75256_hardware_reset(lcd)); + ST75256_ERROR_CHECK(_st75256_init_seq(lcd)); + ST75256_ERROR_CHECK(lcd->cb.delay_cb(lcd->user_data, 200)); + ST75256_ERROR_CHECK(_st75256_display_on(lcd)); + + return ST75256_OK; +} + +st75256_ret_t st75256_set_contrast(st75256_t *lcd, uint16_t contrast) { + uint8_t cmd[3] = { 0x81, contrast & 0x3F, (contrast >> 6U) & 0x07 }; + ST75256_ERROR_CHECK(lcd->cb.write_cmd_cb(lcd->user_data, cmd, 0x03)); + + return ST75256_OK; +} + +st75256_ret_t st75256_set_mode(st75256_t *lcd, st75256_mode_t mode) { + uint8_t cmd[2] = { 0xF0, 0x10 }; + if(mode == ST75256_GREY) { + cmd[1] |= 0x01; + } + + ST75256_ERROR_CHECK(lcd->cb.write_cmd_cb(lcd->user_data, cmd, 0x02)); + + lcd->mode = mode; + + return ST75256_OK; +} + +st75256_ret_t st75256_cursor(st75256_t *lcd, uint8_t x_start, uint8_t x_end, uint8_t y_start, uint8_t y_end) { + +} \ No newline at end of file diff --git a/lib/st75256_lcd/st75256_lcd.h b/lib/st75256_lcd/st75256_lcd.h new file mode 100644 index 0000000..9d07eed --- /dev/null +++ b/lib/st75256_lcd/st75256_lcd.h @@ -0,0 +1,37 @@ +#ifndef __ST75256_LCD_H +#define __ST75256_LCD_H + +#include + +#define ST75256_PANEL_SELECTION jlx_25664_init_sequence + +typedef enum { + ST75256_OK, + ST75256_ERROR +} st75256_ret_t; + +typedef enum { + ST75256_MONO, + ST75256_GREY +} st75256_mode_t; + +typedef struct { + st75256_ret_t (*write_cmd_cb)(void *handle, uint8_t *cmd, uint8_t len); + st75256_ret_t (*write_data_cb)(void *handle, uint8_t *data, uint16_t len); + st75256_ret_t (*reset_cb)(void *handle); + st75256_ret_t (*delay_cb)(void *handle, uint32_t usec); +} st75256_cb_t; + +typedef struct { + void *user_data; + st75256_cb_t cb; + st75256_mode_t mode; +} st75256_t; + +#define ST75256_ERROR_CHECK(x) if(x != ST75256_OK) return ST75256_OK + +st75256_ret_t st75256_init(st75256_t *lcd); +st75256_ret_t st75256_set_contrast(st75256_t *lcd, uint16_t contrast); +st75256_ret_t st75256_set_mode(st75256_t *lcd, st75256_mode_t mode); + +#endif \ No newline at end of file diff --git a/lvgl_impl.c b/lvgl_impl.c new file mode 100644 index 0000000..e69de29 diff --git a/main.c b/main.c new file mode 100644 index 0000000..9db7e84 --- /dev/null +++ b/main.c @@ -0,0 +1,31 @@ +#include + +#include "st75256_lcd.h" +#include "st75256_impl.h" +#include "user_tasks.h" + +st75256_t g_lcd = { + .user_data = NULL, + .cb = { + .write_cmd_cb = _lcd_impl_write_cmd, + .write_data_cb = _lcd_impl_write_data, + .reset_cb = _lcd_impl_reset, + .delay_cb = _lcd_impl_delay + } +}; + +int main() { + g_lcd.user_data = _lcd_impl_init(); + if(g_lcd.user_data == NULL) return -1; + + st75256_init(&g_lcd); + st75256_set_contrast(&g_lcd, 305); + st75256_set_mode(&g_lcd, ST75256_GREY); + + user_tasks_init(); + user_tasks_loop(); + user_tasks_deinit(); + + printf("Hello World!!\n"); + return 0; +} \ No newline at end of file diff --git a/st75256_impl.c b/st75256_impl.c new file mode 100644 index 0000000..3d93e2f --- /dev/null +++ b/st75256_impl.c @@ -0,0 +1,139 @@ +#include "st75256_impl.h" + +_st75256_impl_t *_lcd_impl_init(void) { + int spi_fd = open(CONFIG_SPIDEV_FILENAME, O_RDWR); + if(spi_fd < 0) return NULL; + + uint32_t spi_mode = 0; // Nothing to be set in default mode. + + int ret = ioctl(spi_fd, SPI_IOC_WR_MODE32, &spi_mode); + if(ret == -1) goto spi_err_out; + + ret = ioctl(spi_fd, SPI_IOC_RD_MODE32, &spi_mode); + if(ret == -1) goto spi_err_out; + + uint32_t spi_word_len = 8; + + ret= ioctl(spi_fd, SPI_IOC_WR_BITS_PER_WORD, &spi_word_len); + if(ret == -1) goto spi_err_out; + + ret = ioctl(spi_fd, SPI_IOC_RD_BITS_PER_WORD, &spi_word_len); + if(ret == -1) goto spi_err_out; + + uint32_t spi_speed = 10000000; // 10MHz + + ret = ioctl(spi_fd, SPI_IOC_WR_MAX_SPEED_HZ, &spi_speed); + if(ret == -1) goto spi_err_out; + + ret = ioctl(spi_fd, SPI_IOC_RD_MAX_SPEED_HZ, &spi_speed); + if(ret == -1) goto spi_err_out; + + _st75256_impl_t *impl = malloc(sizeof(_st75256_impl_t)); + if(impl == NULL) goto spi_err_out; + + impl->spi_fd = spi_fd; + + impl->gpio_chip = gpiod_chip_open(CONFIG_GPIO_CHIP); + if(impl->gpio_chip == NULL) goto impl_err_out; + + impl->gpio_line_res = gpiod_chip_get_line(impl->gpio_chip, CONFIG_RES_PIN); + if(impl->gpio_line_res == NULL) goto gpiod_err_out; + + impl->gpio_line_dc = gpiod_chip_get_line(impl->gpio_chip, CONFIG_DC_PIN); + if(impl->gpio_line_dc == NULL) goto gpiod_err_out; + + ret = gpiod_line_request_output(impl->gpio_line_dc, CONFIG_GPIO_CONSUMER, 1); + if(ret != 0) goto gpiod_err_out; + + ret = gpiod_line_request_output(impl->gpio_line_res, CONFIG_GPIO_CONSUMER, 1); + if(ret != 0) goto gpiod_err_out; + + return impl; + +gpiod_err_out: + gpiod_chip_close(impl->gpio_chip); + +impl_err_out: + free(impl); + +spi_err_out: + close(spi_fd); + return NULL; +} + +int _lcd_impl_deinit(_st75256_impl_t *handle) { + close(handle->spi_fd); + gpiod_chip_close(handle->gpio_chip); + free(handle); + return 0; +} + +st75256_ret_t _lcd_impl_write_cmd(void *handle, uint8_t *cmd, uint8_t len) { + _st75256_impl_t *impl = handle; + + int ret = gpiod_line_set_value(impl->gpio_line_dc, 0); + if(ret) return ST75256_ERROR; + + struct spi_ioc_transfer cmd_tr = { + .tx_buf = (unsigned long)cmd, + .rx_buf = (unsigned long)NULL, + .len = 1, + .bits_per_word = 8 + }; + + ret = ioctl(impl->spi_fd, SPI_IOC_MESSAGE(1), &cmd_tr); + if(ret < 1) return ST75256_ERROR; + + if(len > 1) { + ret = gpiod_line_set_value(impl->gpio_line_dc, 1); // Set DC pin + if(ret) return ST75256_ERROR; + cmd_tr.tx_buf = (unsigned long)&cmd[1]; //2nd transfer + cmd_tr.len = len - 1; + + ret = ioctl(impl->spi_fd, SPI_IOC_MESSAGE(1), &cmd_tr); + if(ret < len - 1) return ST75256_ERROR; + } + + return ST75256_OK; +} + +st75256_ret_t _lcd_impl_write_data(void *handle, uint8_t *data, uint16_t len) { + _st75256_impl_t *impl = handle; + + int ret = gpiod_line_set_value(impl->gpio_line_dc, 1); + + struct spi_ioc_transfer data_tr = { + .tx_buf = (unsigned long)data, + .rx_buf = (unsigned long)NULL, + .len = len, + .bits_per_word = 8 + }; + + ret = ioctl(impl->spi_fd, SPI_IOC_MESSAGE(1), &data_tr); + if(ret < len) return ST75256_ERROR; + + return ST75256_OK; +} + +st75256_ret_t _lcd_impl_reset(void *handle) { + _st75256_impl_t *impl = handle; + + usleep(10 * 1000); + + int ret = gpiod_line_set_value(impl->gpio_line_res, 0); + if(ret) return ST75256_ERROR; + + usleep(10 * 1000); + + ret = gpiod_line_set_value(impl->gpio_line_res, 1); + if(ret) return ST75256_ERROR; + + usleep(10 * 1000); + + return ST75256_OK; +} + +st75256_ret_t _lcd_impl_delay(void *handle, uint32_t usec) { + usleep(usec); + return ST75256_OK; +} \ No newline at end of file diff --git a/tasks/task_lvgl.c b/tasks/task_lvgl.c new file mode 100644 index 0000000..9cb6bcf --- /dev/null +++ b/tasks/task_lvgl.c @@ -0,0 +1,47 @@ + +#include +#include + +#include "lvgl.h" + +#include "user_tasks.h" + +extern uint8_t g_running; + +pthread_mutex_t g_lvgl_mutex = PTHREAD_MUTEX_INITIALIZER; + +int lvgl_task_init(void) { + int ret; + lv_init(); + ret = pthread_create(&lvgl_tick_thread_handle, NULL, lvgl_tick_thread, NULL); + if(ret) return ret; + ret = pthread_create(&lvgl_task_thread_handle, NULL, lvgl_task_thread, NULL); + if(ret) return ret; + ret = pthread_setname_np(lvgl_task_thread_handle, "LV_TASK"); + ret = pthread_setname_np(lvgl_tick_thread_handle, "LV_TICK"); +} + +int lvgl_task_deinit(void) { + pthread_join(lvgl_task_thread_handle, NULL); + pthread_join(lvgl_tick_thread_handle, NULL); +} + +pthread_t lvgl_tick_thread_handle; +void *lvgl_tick_thread(void *arguments) { + while(g_running) { + usleep(30 * 1000); + pthread_mutex_lock(&g_lvgl_mutex); + lv_tick_inc(30); + pthread_mutex_unlock(&g_lvgl_mutex); + } +} + +pthread_t lvgl_task_thread_handle; +void *lvgl_task_thread(void *arguments) { + while(g_running) { + usleep(10 * 1000); + pthread_mutex_lock(&g_lvgl_mutex); + lv_task_handler(); + pthread_mutex_unlock(&g_lvgl_mutex); + } +} \ No newline at end of file diff --git a/user_tasks.c b/user_tasks.c new file mode 100644 index 0000000..414654d --- /dev/null +++ b/user_tasks.c @@ -0,0 +1,32 @@ +#include +#include +#include + +#include "user_tasks.h" + +uint8_t g_running = 1; + +void _user_signal_handler(int signo) { + if(signo == SIGINT) { + g_running = 0; + } +} + +void user_tasks_init(void) { + + if(signal(SIGINT, _user_signal_handler) == SIG_ERR) { + return; + } + + lvgl_task_init(); +} + +void user_tasks_loop(void) { + while(g_running) { + sleep(1); + } +} + +void user_tasks_deinit(void) { + lvgl_task_deinit(); +} \ No newline at end of file