screen.c File Reference

#include <kernel/log/screen.h>
#include <kernel/drivers/com.h>
#include <kernel/init/boot_info.h>
#include <kernel/log/glyphs.h>
#include <kernel/log/panic.h>
#include <kernel/sync/lock.h>
#include <string.h>
#include <sys/math.h>

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Functions
static screen_line_t *	screen_get_line (size_t y)
static void	screen_invalidate (const screen_pos_t *pos)
static void	screen_put (char chr)
static void	screen_flush (void)
void	screen_init (void)
	Initialize and enable the screen logging.
static void	screen_scroll (void)
static void	screen_advance_cursor (char chr)
void	screen_hide (void)
	Hide the screen logging.
void	screen_show (void)
	Show the screen logging.
uint64_t	screen_get_width (void)
	Get screen width in characters.
uint64_t	screen_get_height (void)
	Get screen height in characters.
void	screen_write (const char *string, uint64_t length)
	Write a string to the screen.

Variables
static bool	hidden = false
static boot_gop_t	gop = {0}
static screen_pos_t	cursor = {0, 0}
static uint32_t	width
static uint32_t	height
static uint64_t	offset
static screen_pos_t	invalidStart
static screen_pos_t	invalidEnd
static screen_line_t	lines [CONFIG_SCREEN_MAX_LINES]
static lock_t	lock = LOCK_CREATE()

Function Documentation

screen_get_line()

static screen_line_t * screen_get_line ( size_t  y )

static

Definition at line 26 of file screen.c.

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screen_invalidate()

static void screen_invalidate ( const screen_pos_t *  pos )

static

Definition at line 32 of file screen.c.

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screen_put()

static void screen_put ( char  chr )

static

Definition at line 51 of file screen.c.

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screen_flush()

static void screen_flush ( void  )

static

Definition at line 74 of file screen.c.

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screen_scroll()

static void screen_scroll ( void  )

static

Definition at line 114 of file screen.c.

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screen_advance_cursor()

static void screen_advance_cursor ( char  chr )

static

Definition at line 161 of file screen.c.

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Variable Documentation

hidden

bool hidden = false

static

Definition at line 12 of file screen.c.

gop

boot_gop_t gop = {0}

static

Definition at line 14 of file screen.c.

cursor

screen_pos_t cursor = {0, 0}

static

Definition at line 15 of file screen.c.

width

uint32_t width

static

Definition at line 17 of file screen.c.

height

uint32_t height

static

Definition at line 18 of file screen.c.

offset

uint64_t offset

static

Definition at line 19 of file screen.c.

invalidStart

screen_pos_t invalidStart

static

Definition at line 20 of file screen.c.

invalidEnd

screen_pos_t invalidEnd

static

Definition at line 21 of file screen.c.

lines

screen_line_t lines[CONFIG_SCREEN_MAX_LINES]

static

Definition at line 22 of file screen.c.

lock

lock_t lock = LOCK_CREATE()

static

Definition at line 24 of file screen.c.