avr: added module ds1307.

2026-04-27 00:39:02 +02:00
parent 14edff1369
commit accc7d41a2
9 changed files with 438 additions and 0 deletions
--- a/avr/modules/rtc/ds1307/send.asm
+++ b/avr/modules/rtc/ds1307/send.asm
@@ -0,0 +1,116 @@
+; ***************************************************************************
+; 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
+
+
+; ---------------------------------------------------------------------------
+; @routine Ds1307_AnnounceTime
+;
+; @return CFLAG on success, cleared on error
+; @clobbers R16, R17, R18, R19, R20, R21, R23, R24, R25, X, Y, Z
+
+Ds1307_AnnounceTime:
+  ldi r22, 0xff
+  ldi r23, NETMSG_CMD_TIME_ANNOUNCE
+  clr r24
+  clr r25
+  rjmp ds1307SendTime
+; @end
+
+
+
+; ---------------------------------------------------------------------------
+; @routine Ds1307RespondToSetTime
+;
+; @return CFLAG on success, cleared on error
+; @param r22     dest address
+; @param r25:r24 msg id/ref msg id
+
+Ds1307RespondToSetTime:
+  ldi r23, NETMSG_CMD_TIME_RSPSET
+  rjmp ds1307SendTime
+
+
+
+
+; ---------------------------------------------------------------------------
+; @routine ds1307SendTime
+;
+; @return CFLAG on success, cleared on error
+; @param r22     dest address
+; @param r23     command
+; @param r25:r24 msg id/ref msg id
+
+ds1307SendTime:
+  lds r16, ds1307Flags
+  clc
+  sbrs r16, DS1307_FLAGS_VALID_BIT
+    rjmp Ds1307_SendTime_ret
+
+  ; allocate network buffer
+  rcall NET_Buffer_Alloc                 ; (R16, R17, X)
+  brcc Ds1307_SendTime_ret
+
+  push r16                               ; buffer number
+    mov r16, r22
+    adiw xh:xl, 1
+    ldi yl, LOW(netInterfaceData)
+    ldi yh, HIGH(netInterfaceData)
+    ldi zl, LOW(ds1307RecvBuffer)
+    ldi zh, HIGH(ds1307RecvBuffer)
+    bigcall netMsgTimeWrite
+    sbiw xh:xl, 1
+  pop r16                                ; buffer number
+  rcall NET_Interface_AddOrReleaseOutMsg ; (R16, R17, R18, X)
+Ds1307_SendTime_ret:
+  ret
+; @end
+
+
+#if 0
+; ---------------------------------------------------------------------------
+; @routine ds1307SendDebug
+;
+; @return CFLAG on success, cleared on error
+
+ds1307SendDebug:
+  ; allocate network buffer
+  rcall NET_Buffer_Alloc                 ; (R16, R17, X)
+  brcc ds1307SendDebug_ret
+
+  push r16                               ; buffer number
+    mov r16, r22
+    adiw xh:xl, 1
+    ldi yl, LOW(netInterfaceData)
+    ldi yh, HIGH(netInterfaceData)
+
+    ldi r20, ds1307DataEnd-ds1307DataBegin
+    ldi zl, LOW(ds1307DataBegin)
+    ldi zh, HIGH(ds1307DataBegin)
+    bigcall NETMSG_Debug_Write2
+    sbiw xh:xl, 1
+  pop r16                                ; buffer number
+  rcall NET_Interface_AddOrReleaseOutMsg ; (R16, R17, R18, X)
+ds1307SendDebug_ret:
+  ret
+; @end
+#endif
+
+
+