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https://github.com/ivoszbg/uniLoader.git
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3b517ba95a
Implement 8 loglevels to use with printk: While at it, separate the font in a new "video" directory, which also makes space for a proper video probing implementation. Fill in the font from 32 to 256. Scale the font to render twice as big. Implement dynamic line length detection. Change a few things here and there to follow the linux kernel code style. Add a nice logo. Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2022, Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
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*/
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#include <stddef.h>
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#include <string.h>
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#include <lib/debug.h>
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#include <lib/simplefb.h>
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#include <lib/video/font.h>
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long int debug_linecount = 0;
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// Global log level that controls the verbosity
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static int global_loglevel = CONFIG_LOGLEVEL;
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void printk(int log_level, char *text)
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{
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if (log_level > global_loglevel)
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return;
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char *prefix;
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switch (log_level) {
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case KERN_EMERG:
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prefix = "[EMERG] ";
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break;
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case KERN_ALERT:
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prefix = "[ALERT] ";
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break;
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case KERN_CRIT:
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prefix = "[CRIT] ";
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break;
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case KERN_ERR:
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prefix = "[ERROR] ";
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break;
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case KERN_WARNING:
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prefix = "[WARN] ";
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break;
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case KERN_NOTICE:
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prefix = "[NOTICE] ";
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break;
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case KERN_INFO:
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prefix = "[INFO] ";
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break;
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case KERN_DEBUG:
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prefix = "[DEBUG] ";
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break;
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default:
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prefix = "[LOG] ";
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break;
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}
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#ifdef CONFIG_SIMPLE_FB
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// Actually the first line's Y pos. Scales in __simplefb_raw_print
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int y_pos = 5;
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int prefix_width = strlen(prefix) * SCALED_FONTW;
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__simplefb_raw_print((char*)CONFIG_FRAMEBUFFER_BASE, prefix, 0, y_pos,
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CONFIG_FRAMEBUFFER_WIDTH, CONFIG_FRAMEBUFFER_STRIDE);
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__simplefb_raw_print((char*)CONFIG_FRAMEBUFFER_BASE, text, prefix_width, y_pos,
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CONFIG_FRAMEBUFFER_WIDTH, CONFIG_FRAMEBUFFER_STRIDE);
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#endif
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}
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