diff options
Diffstat (limited to 'drivers/video/vidconsole_internal.h')
-rw-r--r-- | drivers/video/vidconsole_internal.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/drivers/video/vidconsole_internal.h b/drivers/video/vidconsole_internal.h new file mode 100644 index 0000000000..c41edd4524 --- /dev/null +++ b/drivers/video/vidconsole_internal.h @@ -0,0 +1,120 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (c) 2015 Google, Inc + * (C) Copyright 2015 + * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com + * (C) Copyright 2023 Dzmitry Sankouski <dsankouski@gmail.com> + */ + +#define FLIPPED_DIRECTION 1 +#define NORMAL_DIRECTION 0 + +/** + * struct console_simple_priv - Private data for this driver + * + * @video_fontdata font graphical representation data + */ +struct console_simple_priv { + struct video_fontdata *fontdata; +}; + +/** + * Checks if bits per pixel supported. + * + * @param bpix framebuffer bits per pixel. + * + * @returns 0, if supported, or else -ENOSYS. + */ +int check_bpix_support(int bpix); + +/** + * Fill 1 pixel in framebuffer, and go to next one. + * + * @param dstp a pointer to pointer to framebuffer. + * @param value value to write to framebuffer. + * @param pbytes framebuffer bytes per pixel. + * @param step framebuffer pointer increment. Usually is equal to pbytes, + * and may be negative to control filling direction. + */ +void fill_pixel_and_goto_next(void **dstp, u32 value, int pbytes, int step); + +/** + * Fills 1 character in framebuffer vertically. Vertically means we're filling char font data rows + * across the lines. + * + * @param pfont a pointer to character font data. + * @param line a pointer to pointer to framebuffer. It's a point for upper left char corner + * @param vid_priv driver private data. + * @fontdata font graphical representation data + * @param direction controls character orientation. Can be normal or flipped. + * When normal: When flipped: + *|-----------------------------------------------| + *| line stepping | | + *| | | stepping -> | + *| * | | * * * | + *| * * v | * | + *| * | * | + *| * | * * ^ | + *| * * * | * | | + *| | | | + *| stepping -> | line stepping | + *|---!!we're starting from upper left char corner| + *|-----------------------------------------------| + * + * @returns 0, if success, or else error code. + */ +int fill_char_vertically(uchar *pfont, void **line, struct video_priv *vid_priv, + struct video_fontdata *fontdata, bool direction); + +/** + * Fills 1 character in framebuffer horizontally. + * Horizontally means we're filling char font data columns across the lines. + * + * @param pfont a pointer to character font data. + * @param line a pointer to pointer to framebuffer. It's a point for upper left char corner + * @param vid_priv driver private data. + * @fontdata font graphical representation data + * @param direction controls character orientation. Can be normal or flipped. + * When normal: When flipped: + *|-----------------------------------------------| + *| * | line stepping | + *| ^ * * * * * | | | + *| | * * | v * * | + *| | | * * * * * | + *| line stepping | * | + *| | | + *| stepping -> | <- stepping | + *|---!!we're starting from upper left char corner| + *|-----------------------------------------------| + * + * @returns 0, if success, or else error code. + */ +int fill_char_horizontally(uchar *pfont, void **line, struct video_priv *vid_priv, + struct video_fontdata *fontdata, bool direction); + +/** + * console probe function. + * + * @param dev a pointer to device. + * + * @returns 0, if success, or else error code. + */ +int console_probe(struct udevice *dev); + +/** + * Internal function to be used in as ops. + * See details in video_console.h get_font_size function + **/ +const char *console_simple_get_font_size(struct udevice *dev, uint *sizep); + +/** + * Internal function to be used in as ops. + * See details in video_console.h get_font function + **/ +int console_simple_get_font(struct udevice *dev, int seq, struct vidfont_info *info); + +/** + * Internal function to be used in as ops. + * See details in video_console.h select_font function + **/ +int console_simple_select_font(struct udevice *dev, const char *name, uint size); |