Files
aqhomecontrol/avr/modules/rtc/ds3231/recv.asm
2026-03-15 20:20:06 +01:00

58 lines
1.5 KiB
NASM

; ***************************************************************************
; copyright : (C) 2026 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. *
; ***************************************************************************
; ***************************************************************************
; defs
; ***************************************************************************
; code
.cseg
Ds3231_OnPacketReceived:
adiw xh:xl, NETMSG_OFFS_CMD ; command
ld r16, X
sbiw xh:xl, NETMSG_OFFS_CMD
cpi r16, NETMSG_CMD_TIME_REQSET
breq Ds3231_OnPacketReceived_set
clc ; unexpected msg
ret
Ds3231_OnPacketReceived_set:
ldi zl, LOW(ds3231RecvBuffer)
ldi zh, HIGH(ds3231RecvBuffer)
bigcall netMsgTimeRead ; r22=sender, r23=command, r25:r24=msg id
push r22
push r15
in r15, SREG
cli
clr r16
ldi r17, 7
ldi zl, LOW(ds3231RecvBuffer)
ldi zh, HIGH(ds3231RecvBuffer)
rcall ds3231SendData ; (r16, r17, r18, r19, r20, r22, Z)
out SREG, r15
pop r15
pop r22
lds r16, ds3231Flags
sbr r16, (1<<DS3231_FLAGS_VALID_BIT)
sts ds3231Flags, r16
#ifdef MODULES_NETWORK
rcall Ds3231RespondToSetTime
#endif
sec
ret
; @end