79e6b0e0f6
As of today <zephyr/zephyr.h> is 100% equivalent to <zephyr/kernel.h>. This patch proposes to then include <zephyr/kernel.h> instead of <zephyr/zephyr.h> since it is more clear that you are including the Kernel APIs and (probably) nothing else. <zephyr/zephyr.h> sounds like a catch-all header that may be confusing. Most applications need to include a bunch of other things to compile, e.g. driver headers or subsystem headers like BT, logging, etc. The idea of a catch-all header in Zephyr is probably not feasible anyway. Reason is that Zephyr is not a library, like it could be for example `libpython`. Zephyr provides many utilities nowadays: a kernel, drivers, subsystems, etc and things will likely grow. A catch-all header would be massive, difficult to keep up-to-date. It is also likely that an application will only build a small subset. Note that subsystem-level headers may use a catch-all approach to make things easier, though. NOTE: This patch is **NOT** removing the header, just removing its usage in-tree. I'd advocate for its deprecation (add a #warning on it), but I understand many people will have concerns. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
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* Copyright (c) 2018 PHYTEC Messtechnik GmbH
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/device.h>
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#include <zephyr/display/cfb.h>
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#include <stdio.h>
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void main(void)
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{
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const struct device *dev;
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uint16_t rows;
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uint8_t ppt;
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uint8_t font_width;
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uint8_t font_height;
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dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_display));
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if (!device_is_ready(dev)) {
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printf("Device %s not ready\n", dev->name);
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return;
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}
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if (display_set_pixel_format(dev, PIXEL_FORMAT_MONO10) != 0) {
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printf("Failed to set required pixel format\n");
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return;
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}
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printf("Initialized %s\n", dev->name);
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if (cfb_framebuffer_init(dev)) {
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printf("Framebuffer initialization failed!\n");
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return;
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}
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cfb_framebuffer_clear(dev, true);
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display_blanking_off(dev);
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rows = cfb_get_display_parameter(dev, CFB_DISPLAY_ROWS);
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ppt = cfb_get_display_parameter(dev, CFB_DISPLAY_PPT);
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for (int idx = 0; idx < 42; idx++) {
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if (cfb_get_font_size(dev, idx, &font_width, &font_height)) {
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break;
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}
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cfb_framebuffer_set_font(dev, idx);
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printf("font width %d, font height %d\n",
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font_width, font_height);
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}
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printf("x_res %d, y_res %d, ppt %d, rows %d, cols %d\n",
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cfb_get_display_parameter(dev, CFB_DISPLAY_WIDTH),
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cfb_get_display_parameter(dev, CFB_DISPLAY_HEIGH),
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ppt,
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rows,
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cfb_get_display_parameter(dev, CFB_DISPLAY_COLS));
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while (1) {
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for (int i = 0; i < rows; i++) {
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cfb_framebuffer_clear(dev, false);
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if (cfb_print(dev,
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"0123456789mMgj!\"§$%&/()=",
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0, i * ppt)) {
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printf("Failed to print a string\n");
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continue;
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}
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cfb_framebuffer_finalize(dev);
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#if defined(CONFIG_ARCH_POSIX)
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k_sleep(K_MSEC(100));
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#endif
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}
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}
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}
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