; ***************************************************************************
; 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.   *
; ***************************************************************************

; ***************************************************************************
;
;                                 AtTiny84
;                                 --------
;                            VCC  1     14  GND
;                     OWI    PB0  2     13  PA0
;     LED_Mode (0 for SPI)   PB1  3     12  PA1  COM-DATA
;                            PB3  4     11  PA2         
;                            PB2  5     10  PA3  LED
;                  COM_CLK   PA7  6      9  PA4  LED_CLK
;                  LED_DATA  PA6  7      8  PA5
;                                 --------
;
; ***************************************************************************



.equ BOOTLOADER_ADDR = 0xd00


.equ FIRMWARE_VARIANT_BOOT        = 0
.equ FIRMWARE_VARIANT_LEDSTRIPS   = 1

.equ DEVICEINFO_ID       = 'N'
.equ DEVICEINFO_VERSION  = 30
.equ DEVICEINFO_REVISION = 0


; ---------------------------------------------------------------------------
; LED module

.equ LED_SIMPLE_ONTIME  = 1
.equ LED_SIMPLE_OFFTIME = 50
.equ LED_SIMPLE_DDR     = DDRA
.equ LED_SIMPLE_PORT    = PORTA
.equ LED_SIMPLE_PORTIN  = PINA
.equ LED_SIMPLE_PINNUM  = PORTA3



; ---------------------------------------------------------------------------
; COM module

.equ COM_BIT_LENGTH      = 52000 ; 104000ns=9600, 52000ns=19200, 26000ns=38400
.equ COM_HALFBIT_LENGTH  = 26000 ; see https://de.wikipedia.org/wiki/Universal_Asynchronous_Receiver_Transmitter

.equ COM_DATA_DDR       = DDRA
.equ COM_DATA_INPUT     = PINA
.equ COM_DATA_OUTPUT    = PORTA
.equ COM_DATA_PIN       = PORTA1

.equ COM_CLK_DDR       = DDRA
.equ COM_CLK_INPUT     = PINA
.equ COM_CLK_OUTPUT    = PORTA
.equ COM_CLK_PIN       = PORTA7

.equ COM_IRQ_ADDR_CLK   = PCMSK0
.equ COM_IRQ_BIT_CLK    = PCINT7       ; bit 7 in PCMSK0 (PCINT7)
.equ COM_IRQ_GIFR_CLK   = PCIF0
.equ COM_IRQ_GIMSK_CLK  = PCIE0



; ---------------------------------------------------------------------------
; 1-Wire Master
;

.equ OWI_DDR     = DDRB
.equ OWI_PORTOUT = PORTB
.equ OWI_PORTIN  = PINB
.equ OWI_PINNUM  = PORTB0



; ---------------------------------------------------------------------------
; LED mode pin

.equ LED_MODE_DDR     = DDRB
.equ LED_MODE_PORTOUT = PORTB
.equ LED_MODE_PORTIN  = PINB
.equ LED_MODE_PINNUM  = PORTB1


; ---------------------------------------------------------------------------
; SK6812

.equ SK6812_DDR    = DDRA
.equ SK6812_PORT   = PORTA
.equ SK6812_PINNUM = PORTA6