mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-24 21:54:01 +00:00
185f812c41
Sphinx expects Return: and not @return to indicate a return value.
find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
192 lines
6.7 KiB
C
192 lines
6.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2017
|
|
* Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
|
|
*/
|
|
|
|
#ifndef _VIDEO_OSD_H_
|
|
#define _VIDEO_OSD_H_
|
|
|
|
struct video_osd_info {
|
|
/* The width of the OSD display in columns */
|
|
uint width;
|
|
/* The height of the OSD display in rows */
|
|
uint height;
|
|
/* The major version of the OSD device */
|
|
uint major_version;
|
|
/* The minor version of the OSD device */
|
|
uint minor_version;
|
|
};
|
|
|
|
/**
|
|
* struct video_osd_ops - driver operations for OSD uclass
|
|
*
|
|
* The OSD uclass implements support for text-oriented on-screen displays,
|
|
* which are taken to be devices that independently display a graphical
|
|
* text-based overlay over the video output of an associated display.
|
|
*
|
|
* The functions defined by the uclass support writing text to the display in
|
|
* either a generic form (by specifying a string, a driver-specific color value
|
|
* for the text, and screen coordinates in rows and columns) or a
|
|
* driver-specific form (by specifying "raw" driver-specific data to display at
|
|
* a given coordinate).
|
|
*
|
|
* Functions to read device information and set the size of the virtual OSD
|
|
* screen (in rows and columns) are also supported.
|
|
*
|
|
* Drivers should support these operations unless otherwise noted. These
|
|
* operations are intended to be used by uclass code, not directly from
|
|
* other code.
|
|
*/
|
|
struct video_osd_ops {
|
|
/**
|
|
* get_info() - Get information about a OSD instance
|
|
*
|
|
* A OSD instance may keep some internal data about itself. This
|
|
* function can be used to access this data.
|
|
*
|
|
* @dev: OSD instance to query.
|
|
* @info: Pointer to a structure that takes the information read
|
|
* from the OSD instance.
|
|
* @return 0 if OK, -ve on error.
|
|
*/
|
|
int (*get_info)(struct udevice *dev, struct video_osd_info *info);
|
|
|
|
/**
|
|
* set_mem() - Write driver-specific text data to OSD screen
|
|
*
|
|
* The passed data are device-specific, and it's up to the driver how
|
|
* to interpret them. How the count parameter is interpreted is also
|
|
* driver-specific; most likely the given data will be written to the
|
|
* OSD count times back-to-back, which is e.g. convenient for filling
|
|
* areas of the OSD with a single character.
|
|
*
|
|
* For example a invocation of
|
|
*
|
|
* video_osd_set_mem(dev, 0, 0, "A", 1, 10);
|
|
*
|
|
* will write the device-specific text data "A" to the positions (0, 0)
|
|
* to (9, 0) on the OSD.
|
|
*
|
|
* Device-specific text data may, e.g. be a special encoding of glyphs
|
|
* to display and color values in binary format.
|
|
*
|
|
* @dev: OSD instance to write to.
|
|
* @col: Horizontal character coordinate to write to.
|
|
* @row Vertical character coordinate to write to.
|
|
* @buf: Array containing device-specific data to write to the
|
|
* specified coordinate on the OSD screen.
|
|
* @buflen: Length of the data in the passed buffer (in byte).
|
|
* @count: Write count many repetitions of the given text data
|
|
* @return 0 if OK, -ve on error.
|
|
*/
|
|
int (*set_mem)(struct udevice *dev, uint col, uint row, u8 *buf,
|
|
size_t buflen, uint count);
|
|
|
|
/**
|
|
* set_size() - Set the position and dimension of the OSD's
|
|
* writeable window
|
|
*
|
|
* @dev: OSD instance to write to.
|
|
* @col The number of characters in the window's columns
|
|
* @row The number of characters in the window's rows
|
|
* @return 0 if OK, -ve on error.
|
|
*/
|
|
int (*set_size)(struct udevice *dev, uint col, uint row);
|
|
|
|
/**
|
|
* print() - Print a string in a given color to specified coordinates
|
|
* on the OSD
|
|
*
|
|
* @dev: OSD instance to write to.
|
|
* @col The x-coordinate of the position the string should be
|
|
* written to
|
|
* @row The y-coordinate of the position the string should be
|
|
* written to
|
|
* @color: The color in which the specified string should be
|
|
* printed; the interpretation of the value is
|
|
* driver-specific, and possible values should be defined
|
|
* e.g. in a driver include file.
|
|
* @text: The string data that should be printed on the OSD
|
|
* @return 0 if OK, -ve on error.
|
|
*/
|
|
int (*print)(struct udevice *dev, uint col, uint row, ulong color,
|
|
char *text);
|
|
};
|
|
|
|
#define video_osd_get_ops(dev) ((struct video_osd_ops *)(dev)->driver->ops)
|
|
|
|
/**
|
|
* video_osd_get_info() - Get information about a OSD instance
|
|
*
|
|
* A OSD instance may keep some internal data about itself. This function can
|
|
* be used to access this data.
|
|
*
|
|
* @dev: OSD instance to query.
|
|
* @info: Pointer to a structure that takes the information read from the
|
|
* OSD instance.
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int video_osd_get_info(struct udevice *dev, struct video_osd_info *info);
|
|
|
|
/**
|
|
* video_osd_set_mem() - Write text data to OSD memory
|
|
*
|
|
* The passed data are device-specific, and it's up to the driver how to
|
|
* interpret them. How the count parameter is interpreted is also
|
|
* driver-specific; most likely the given data will be written to the OSD count
|
|
* times back-to-back, which is e.g. convenient for filling areas of the OSD
|
|
* with a single character.
|
|
*
|
|
* For example a invocation of
|
|
*
|
|
* video_osd_set_mem(dev, 0, 0, "A", 1, 10);
|
|
*
|
|
* will write the device-specific text data "A" to the positions (0, 0) to (9,
|
|
* 0) on the OSD.
|
|
*
|
|
* Device-specific text data may, e.g. be a special encoding of glyphs to
|
|
* display and color values in binary format.
|
|
*
|
|
* @dev: OSD instance to write to.
|
|
* @col: Horizontal character coordinate to write to.
|
|
* @row Vertical character coordinate to write to.
|
|
* @buf: Array containing device-specific data to write to the specified
|
|
* coordinate on the OSD screen.
|
|
* @buflen: Length of the data in the passed buffer (in byte).
|
|
* @count: Write count many repetitions of the given text data
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int video_osd_set_mem(struct udevice *dev, uint col, uint row, u8 *buf,
|
|
size_t buflen, uint count);
|
|
|
|
/**
|
|
* video_osd_set_size() - Set the position and dimension of the OSD's
|
|
* writeable window
|
|
*
|
|
* @dev: OSD instance to write to.
|
|
* @col The number of characters in the window's columns
|
|
* @row The number of characters in the window's rows
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int video_osd_set_size(struct udevice *dev, uint col, uint row);
|
|
|
|
/**
|
|
* video_osd_print() - Print a string in a given color to specified coordinates
|
|
* on the OSD
|
|
*
|
|
* @dev: OSD instance to write to.
|
|
* @col The x-coordinate of the position the string should be written
|
|
* to
|
|
* @row The y-coordinate of the position the string should be written
|
|
* to
|
|
* @color: The color in which the specified string should be printed; the
|
|
* interpretation of the value is driver-specific, and possible
|
|
* values should be defined e.g. in a driver include file.
|
|
* @text: The string data that should be printed on the OSD
|
|
* Return: 0 if OK, -ve on error.
|
|
*/
|
|
int video_osd_print(struct udevice *dev, uint col, uint row, ulong color,
|
|
char *text);
|
|
|
|
#endif /* !_VIDEO_OSD_H_ */
|