72 lines
2.1 KiB
NASM
72 lines
2.1 KiB
NASM
; ***************************************************************************
|
|
; copyright : (C) 2023 by Martin Preuss
|
|
; email : martin@libchipcard.de
|
|
;
|
|
; ***************************************************************************
|
|
; * This file is part of the project "AqHome". *
|
|
; * Please see toplevel file COPYING of that project for license details. *
|
|
; ***************************************************************************
|
|
|
|
|
|
|
|
|
|
; ***************************************************************************
|
|
; code
|
|
|
|
.cseg
|
|
|
|
|
|
; ---------------------------------------------------------------------------
|
|
; Enqueue a VALUE packet.
|
|
;
|
|
; IN:
|
|
; - R16: destination address
|
|
; - R17: value id
|
|
; - R19:R18: value
|
|
; - R21:R20: denom (e.g. 100, meaning value must be divided by 100)
|
|
; - R22: value type
|
|
; OUT:
|
|
; - CFLAG: set if okay, clear otherwise
|
|
; MODIFIED REGS: R6, R7, R8, R9, R10, R11, R12, R16, R17, X, Y (R3, R4, R15, R16, R17, R18, R19, R20, R21)
|
|
|
|
CPRO_EnqueueValue:
|
|
mov r6, r16
|
|
mov r7, r17
|
|
mov r8, r18
|
|
mov r9, r19
|
|
mov r10, r20
|
|
mov r11, r21
|
|
mov r12, r22
|
|
|
|
rcall COM_AllocBufferAndGetXY ; (r16, r17, r21)
|
|
brcc CPRO_EnqueueValue_error
|
|
|
|
push xh
|
|
push xl
|
|
mov r16, r6
|
|
ldi r17, CPRO_PAYLOAD_FLAGS_UID | (6<<CPRO_PAYLOAD_FLAGS_SHIFT_NUM)
|
|
ldi r18, CPRO_CMD_VALUE
|
|
rcall cproBeginMsgWithVariablePayload ; (R3, R4, R16, R17, R18, R19, R20, R21, X)
|
|
st X+, r7 ; 6: value id
|
|
st X+, r12 ; 7: value type
|
|
st X+, r8 ; 8: low value
|
|
st X+, r9 ; 9: high value
|
|
st X+, r10 ; 10: low denom
|
|
st X+, r11 ; 11: high denom
|
|
pop xl
|
|
pop xh
|
|
rcall comCalcAndAddChecksumByte ; (R16, R17, R18, R19, X)
|
|
|
|
; mark buffer as enqueued with PRIO "normal" (slightly limited number of retries)
|
|
ldi r20, COM_BUFFER_PRIO_NORMAL
|
|
rcall COM_EnqueuePacket ; (R15, R16)
|
|
brcc CPRO_EnqueueValue_error
|
|
sec
|
|
ret
|
|
CPRO_EnqueueValue_error:
|
|
clc
|
|
ret
|
|
|
|
|
|
|