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https://github.com/AsahiLinux/u-boot
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3154725949
- move common code to vidconsole_internal.h and console_core.c - unite probe functions - get rid of code duplications in switch across bpp values - extract common pixel fill logic in two functions one per horizontal and vertical filling - rearrange statements in put_xy* methods in unified way - replace types - uint*_t to u* Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (c) 2015 Google, Inc
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* (C) Copyright 2015
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* Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
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* (C) Copyright 2023 Dzmitry Sankouski <dsankouski@gmail.com>
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*/
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#include <video_font.h> /* Get font data, width and height */
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#define VIDEO_FONT_BYTE_WIDTH ((VIDEO_FONT_WIDTH / 8) + (VIDEO_FONT_WIDTH % 8 > 0))
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#define FLIPPED_DIRECTION 1
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#define NORMAL_DIRECTION 0
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/**
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* Checks if bits per pixel supported.
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*
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* @param bpix framebuffer bits per pixel.
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*
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* @returns 0, if supported, or else -ENOSYS.
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*/
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int check_bpix_support(int bpix);
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/**
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* Fill 1 pixel in framebuffer, and go to next one.
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*
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* @param dstp a pointer to pointer to framebuffer.
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* @param value value to write to framebuffer.
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* @param pbytes framebuffer bytes per pixel.
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* @param step framebuffer pointer increment. Usually is equal to pbytes,
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* and may be negative to control filling direction.
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*/
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void fill_pixel_and_goto_next(void **dstp, u32 value, int pbytes, int step);
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/**
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* Fills 1 character in framebuffer vertically. Vertically means we're filling char font data rows
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* across the lines.
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*
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* @param pfont a pointer to character font data.
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* @param line a pointer to pointer to framebuffer. It's a point for upper left char corner
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* @param vid_priv driver private data.
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* @param direction controls character orientation. Can be normal or flipped.
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* When normal: When flipped:
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*|-----------------------------------------------|
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*| line stepping | |
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*| | | stepping -> |
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*| * | | * * * |
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*| * * v | * |
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*| * | * |
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*| * | * * ^ |
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*| * * * | * | |
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*| | | |
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*| stepping -> | line stepping |
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*|---!!we're starting from upper left char corner|
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*|-----------------------------------------------|
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*
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* @returns 0, if success, or else error code.
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*/
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int fill_char_vertically(uchar *pfont, void **line, struct video_priv *vid_priv,
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bool direction);
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/**
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* Fills 1 character in framebuffer horizontally.
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* Horizontally means we're filling char font data columns across the lines.
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*
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* @param pfont a pointer to character font data.
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* @param line a pointer to pointer to framebuffer. It's a point for upper left char corner
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* @param vid_priv driver private data.
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* @param direction controls character orientation. Can be normal or flipped.
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* When normal: When flipped:
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*|-----------------------------------------------|
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*| * | line stepping |
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*| ^ * * * * * | | |
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*| | * * | v * * |
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*| | | * * * * * |
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*| line stepping | * |
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*| | |
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*| stepping -> | <- stepping |
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*|---!!we're starting from upper left char corner|
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*|-----------------------------------------------|
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*
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* @returns 0, if success, or else error code.
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*/
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int fill_char_horizontally(uchar *pfont, void **line, struct video_priv *vid_priv,
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bool direction);
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/**
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* console probe function.
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*
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* @param dev a pointer to device.
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*
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* @returns 0, if success, or else error code.
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*/
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int console_probe(struct udevice *dev);
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