205 lines
5.4 KiB
NASM
205 lines
5.4 KiB
NASM
; ***************************************************************************
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; copyright : (C) 2025 by Martin Preuss
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; email : martin@libchipcard.de
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;
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; ***************************************************************************
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; * This file is part of the project "AqHome". *
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; * Please see toplevel file COPYING of that project for license details. *
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; ***************************************************************************
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; ***************************************************************************
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; defines
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.equ VALSCHED_OFFS_TIMER = 0
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.equ VALSCHED_OFFS_FLAGS = 1
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.equ VALSCHED_DATA_SIZE = 2
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.equ VALSCHED_FLAGS_VALUE_BIT = 0
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.equ VALSCHED_FLAGS_TOSEND_BIT = 1
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.equ VALSCHED_FLAGS_REPEAT_BIT = 2
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.equ VALSCHED_FLAGS_REPEAT0_BIT = 6
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.equ VALSCHED_FLAGS_REPEAT1_BIT = 7
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.equ VALSCHED_REPORTTIME1 = 1 ; report after 100ms
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.equ VALSCHED_REPORTTIME2 = 11 ; report after 1100ms
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.equ VALSCHED_REPORTTIME3 = 22 ; report after 2200ms
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.equ VALSCHED_INTERVAL = 200 ; 20s interval
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; ***************************************************************************
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; code
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.cseg
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; ---------------------------------------------------------------------------
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; @routine ValueScheduler_Init @global
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;
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; @param Y pointer to instance data
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ValueScheduler_Init:
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clr r16
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std Y+VALSCHED_OFFS_FLAGS, r16
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dec r16
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std Y+VALSCHED_OFFS_TIMER, r16 ; init timer in hold state
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine ValueScheduler_Fini @global
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;
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; @param Y pointer to instance data
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ValueScheduler_Fini:
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ldi r16, 0xff
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std Y+VALSCHED_OFFS_TIMER, r16
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine ValueScheduler_Every100ms @global
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;
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; @param Y pointer to instance data
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; @clobbers r16, r17
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ValueScheduler_Every100ms:
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ldd r16, Y+VALSCHED_OFFS_TIMER
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inc r16
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breq ValueScheduler_Every100ms_end ; timer on hold
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std Y+VALSCHED_OFFS_TIMER, r16
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cpi r16, VALSCHED_REPORTTIME1
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breq ValueScheduler_Every100ms_setSendFlag
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cpi r16, VALSCHED_REPORTTIME2
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breq ValueScheduler_Every100ms_setSendFlag
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cpi r16, VALSCHED_REPORTTIME3
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breq ValueScheduler_Every100ms_setSendFlag
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cpi r16, VALSCHED_INTERVAL
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brne ValueScheduler_Every100ms_end
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; interval finished, check for repeat
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ldd r17, Y+VALSCHED_OFFS_FLAGS
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clr r16
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sbrs r16, VALSCHED_FLAGS_REPEAT_BIT
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dec r17 ; bit not set, stop counter after this interval
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std Y+VALSCHED_OFFS_TIMER, r17
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rjmp ValueScheduler_Every100ms_end
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ValueScheduler_Every100ms_setSendFlag:
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ldd r16, Y+VALSCHED_OFFS_FLAGS
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ori r16, (1<<VALSCHED_FLAGS_TOSEND_BIT)
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std Y+VALSCHED_OFFS_FLAGS, r16
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ValueScheduler_Every100ms_end:
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine ValueScheduler_CheckSend @global
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;
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; Check whether the value should be sent.
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;
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; @param Y pointer to instance data
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; @return CFLAG set if value should be sent, cleared otherwise
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; @clobbers r16
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ValueScheduler_CheckSend:
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ldd r16, Y+VALSCHED_OFFS_FLAGS
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andi r16, (1<<VALSCHED_FLAGS_TOSEND_BIT)
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breq ValueScheduler_CheckSend_end
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sec
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ValueScheduler_CheckSend_end:
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine ValueScheduler_MarkSent @global
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;
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; Tells this module that a value message has been sent.
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;
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; @param Y pointer to instance data
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; @clobbers r16
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ValueScheduler_MarkSent:
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ldd r16, Y+VALSCHED_OFFS_FLAGS
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andi r16, ~(1<<VALSCHED_FLAGS_TOSEND_BIT)
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std Y+VALSCHED_OFFS_FLAGS, r16
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine ValueScheduler_SetValue @global
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;
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; Reduces value to 1 bit.
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;
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; @param Y pointer to instance data
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; @param r16 value
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; @clobbers r17
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ValueScheduler_SetValue:
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mov r17, r16
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rcall ValueScheduler_GetValue
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cp r17, r16
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breq ValueScheduler_SetValue_end
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; value changed
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mov r16, r17
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tst r16
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breq ValueScheduler_SetValue_set0
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; set 1
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ldd r17, Y+VALSCHED_OFFS_FLAGS
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ori r17, (1<<VALSCHED_FLAGS_REPEAT_BIT) ; set repeat bit
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sbrs r17, VALSCHED_FLAGS_REPEAT1_BIT
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andi r17, ~(1<<VALSCHED_FLAGS_REPEAT_BIT) ; clear repeat bit if not wanted for "1"
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ori r17, (1<<VALSCHED_FLAGS_VALUE_BIT) ; 1: set value bit and repeat bit
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std Y+VALSCHED_OFFS_FLAGS, r17 ; store new byte
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rjmp ValueScheduler_SetValue_resetTimer
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ValueScheduler_SetValue_set0:
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ldd r17, Y+VALSCHED_OFFS_FLAGS
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ori r17, (1<<VALSCHED_FLAGS_REPEAT_BIT)
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sbrs r17, VALSCHED_FLAGS_REPEAT0_BIT
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andi r17, ~(1<<VALSCHED_FLAGS_REPEAT_BIT) ; clear repeat bit if not wanted for "0"
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andi r17, ~(1<<VALSCHED_FLAGS_VALUE_BIT) ; 0: clear value bit and repeat bit
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std Y+VALSCHED_OFFS_FLAGS, r17 ; store new byte
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ValueScheduler_SetValue_resetTimer:
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clr r17 ; reset timer
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std Y+VALSCHED_OFFS_TIMER, r17
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ValueScheduler_SetValue_end:
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine ValueScheduler_GetValue @global
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;
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; Return current value (reduced to 1 bit).
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;
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; @param Y pointer to instance data
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; @return R16 value (reduced to 1 bit!)
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; @clobbers none
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ValueScheduler_GetValue:
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ldd r16, Y+VALSCHED_OFFS_FLAGS
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lsr r16, VALSCHED_FLAGS_VALUE_BIT
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andi r16, 1
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ret
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; @end
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