avr: split code in multiple files and routines.

avr/modules/flash/flash_ready.asm

@@ -0,0 +1,67 @@
+; ***************************************************************************
+; 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
+
+
+
+; ---------------------------------------------------------------------------
+; Write a FLASH_READY packet.
+;
+; IN:
+; - X  : buffer to write to
+; OUT:
+; - nothing
+; MODIFIED REGS: R16, Z (R17, R18, R19, R20)
+
+flashWriteFlashReady:
+  ldi r16, 0xff
+  st X+, r16 ; dest address (unused)
+  ldi r16, 12 ; msg code+src address+ten payload bytes
+  st X+, r16 ; msg len
+  ldi r16, CPRO_CMD_FLASH_READY
+  st X+, r16 ; msg code
+  ldi r16, COM2_MAINTENANCE_ADDR
+  st X+, r16 ; src address (not used)
+  ; payload
+  lds r16, flashUid
+  st X+, r16
+  lds r16, flashUid+1
+  st X+, r16
+  lds r16, flashUid+2
+  st X+, r16
+  lds r16, flashUid+3
+  st X+, r16
+  ldi zl, low(firmwareType*2)
+  ldi zh, HIGH(firmwareType*2)
+  lpm r16, Z+
+  st X+, r16     ; firmwareType (low)
+  lpm r16, Z+
+  st X+, r16     ; firmwareType (high)
+  lpm r16, Z+ 
+  st X+, r16     ; firmwareVersion (low)
+  lpm r16, Z+ 
+  st X+, r16     ; firmwareVersion (high)
+  ldi r16, LOW(PAGESIZE*2)
+  st X+, r16
+  ldi r16, HIGH(PAGESIZE*2)
+  st X, r16
+  sbiw xh:xl, 13
+  rcall com2CalcAndAddChecksumByte ; (R16, R17, R18, R19, R20, X)
+  sbiw xh:xl, 14
+  ret
+
+
+