#include <miniOS/types.h>

Include dependency graph for vt.h:

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Functions
void	vt_init (void)
	Clears the VGA framebuffer, resets cursor position to (0,0), sets default attribute (light gray on black), and initialises the ANSI escape parser state machine. Called once during kernel boot before any console output.
void	vt_clear (void)
	Fills all 80x25 VGA cells with space characters using the current default attribute, resets the cursor position to row 0 column 0, and updates the hardware cursor via VGA CRT registers.
void	vt_write_byte (char c)
	If inside an ANSI escape sequence, feeds `to` the CSI parser and applies the completed command (cursor movement, erase, SGR color). Otherwise:
void	vt_write (const char *buf, size_t len)
	Calls vt_write_byte() for each byte in [buf, buf+len). Efficient for bulk output from tty_write() or printk().
void	vt_set_cursor_visible (bool visible)
	Writes to VGA CRT registers VGA_CUR_START_REG (index 0x0A): sets VGA_CUR_DISABLE bit to hide, clears it and sets scanline range to show.
void	vt_get_winsize (uint16_t rows, uint16_t cols)
	Used by tty_ioctl TIOCGWINSZ to fill struct minios_winsize.ws_row/ws_col.
uint8_t	vt_current_attr (void)
	The attribute byte encodes foreground color (bits 3:0), background color (bits 6:4), and blink (bit 7) as set by the most recent SGR sequence.

Functions