Revise console interface

src/gopheros/kernel/driver/video/console/console.go

@@ -1,48 +0,0 @@
-package console
-
-// Attr defines a color attribute.
-type Attr uint16
-
-// The set of attributes that can be passed to Write().
-const (
-	Black Attr = iota
-	Blue
-	Green
-	Cyan
-	Red
-	Magenta
-	Brown
-	LightGrey
-	Grey
-	LightBlue
-	LightGreen
-	LightCyan
-	LightRed
-	LightMagenta
-	LightBrown
-	White
-)
-
-// ScrollDir defines a scroll direction.
-type ScrollDir uint8
-
-// The supported list of scroll directions for the console Scroll() calls.
-const (
-	Up ScrollDir = iota
-	Down
-)
-
-// The Console interface is implemented by objects that can function as physical consoles.
-type Console interface {
-	// Dimensions returns the width and height of the console in characters.
-	Dimensions() (uint16, uint16)
-
-	// Clear clears the specified rectangular region
-	Clear(x, y, width, height uint16)
-
-	// Scroll a particular number of lines to the specified direction.
-	Scroll(dir ScrollDir, lines uint16)
-
-	// Write a char to the specified location.
-	Write(ch byte, attr Attr, x, y uint16)
-}