u-boot/include/video_console.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
41  * struct vidconsole_priv - uclass-private data about a console device
43  * Drivers must set up @rows, @cols, @x_charsize, @y_charsize in their probe()
44  * method. Drivers may set up @xstart_frac if desired.
48  * @ycur:		Current Y position in pixels (0=top)
60  * @row_saved:		Saved Y position in pixels (0=top)
88  * struct vidconsole_ops - Video console operations
92  * of an entire line of text - typically 16 pixels).
96 	 * putc_xy() - write a single character to a position
99 	 * @x_frac:	Fractional pixel X position (0=left-most pixel) which
101 	 * @y:		Pixel Y position (0=top-most pixel)
104 	 * if all is OK, -EAGAIN if we ran out of space on this line, other -ve
110 	 * move_rows() - Move text rows from one place to another
113 	 * @rowdst:	Destination text row (0=top)
116 	 * @return 0 if OK, -ve on error
122 	 * set_row() - Set the colour of a text row
127 	 * @row:	Text row to adjust (0=top)
129 	 * @return 0 if OK, -ve on error
134 	 * entry_start() - Indicate that text entry is starting afresh
146 	 * backspace() - Handle erasing the last character
154 	 * If not implement, default behaviour will work for fixed-width
161 #define vidconsole_get_ops(dev)  ((struct vidconsole_ops *)(dev)->driver->ops)
164  * vidconsole_putc_xy() - write a single character to a position
167  * @x_frac:	Fractional pixel X position (0=left-most pixel) which
169  * @y:		Pixel Y position (0=top-most pixel)
172  * if all is OK, -EAGAIN if we ran out of space on this line, other -ve
178  * vidconsole_move_rows() - Move text rows from one place to another
181  * @rowdst:	Destination text row (0=top)
184  * @return 0 if OK, -ve on error
190  * vidconsole_set_row() - Set the colour of a text row
195  * @row:	Text row to adjust (0=top)
197  * @return 0 if OK, -ve on error
202  * vidconsole_put_char() - Output a character to the current console position
208  * The device always starts with the cursor at position 0,0 (top left). It
213  * @return 0 if OK, -ve on error
218  * vidconsole_position_cursor() - Move the text cursor
223  * @return 0 if OK, -ve on error
231  * vid_console_color() - convert a color code to a pixel's internal