6502-OS/programs/ps2_keyboard_simple_handler.h65

;;********************************************************************************
;; @file
;; @brief Simple PS/2 keyboard handler
;; @ingroup libs
;; @details:
;;	This module processes keyboard scancodes from the ps2_keyboard driver.
;;  It requires a PS/2 keyboard that supports scancode set 3.
;;
;;  @section what What it does
;;   - swallow break (release) scancodes
;;
;;  This handler is designed for debug purposes.
;;
;;  @section usage How to use it
;;	 Call `kb::init` and check if it was successful (`Z = 1`).
;;   In your program loop, check if kb::scancode is 0. If it is not, a key has been pressed.
;;   
;;   @subsection change_behaviour Changing the keyboard behaviour
;;    You can change the typematic rate and delay (see PS/2 keyboard command `0xF3`) 
;;    and the typematic behavior (make, make/release, typematic) for all keys.
;;    
;;	  You may also send the echo (`0xEE`) and identify (`0xF2`) commands to the keyboard.
;;********************************************************************************
.ifndef INCLUDE_KEYBOARD_SIMPLE
INCLUDE_KEYBOARD_SIMPLE = 1

.include "ps2_keyboard.h65"


;;********************************************************************************
;; @brief Simple Keyboard Handler
;;********************************************************************************
.scope skb
Import skb, init, scancode

K_BREAK			= $F0
.endscope
.endif  ; guard