; ***************************************************************************
; copyright   : (C) 2025 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
;                     LED0   PB0  2     13  PA0  COM-CLK0
;                     LED1   PB1  3     12  PA1  COM-CLK1
;                   /RESET   PB3  4     11  PA2  COM-DATA0
;                            PB2  5     10  PA3  COM-DATA1
;                            PA7  6      9  PA4
;                  TWI-SDA   PA6  7      8  PA5  TWI-SCL
;                                 --------
;
; ***************************************************************************



.equ BOOTLOADER_ADDR = 0xd00

.equ FIRMWARE_VARIANT_BOOT        = 0
.equ FIRMWARE_VARIANT_TEMP_WINDOW = 1

.equ DEVICEINFO_ID       = 'R'
.equ DEVICEINFO_VERSION  = 6
.equ DEVICEINFO_REVISION = 0



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

.equ LED_SIMPLE_ONTIME  = 1     ; shorter
.equ LED_SIMPLE_OFFTIME = 50    ; longer
.equ LED_SIMPLE_DDR     = DDRB
.equ LED_SIMPLE_PORT    = PORTB
.equ LED_SIMPLE_PORTIN  = PINB
.equ LED_SIMPLE_PINNUM  = PORTB0



; ---------------------------------------------------------------------------
; 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_IRQ_ADDR_CLK   = PCMSK0
.equ COM_IRQ_GIFR_CLK   = PCIF0
.equ COM_IRQ_GIMSK_CLK  = PCIE0

.equ COM_DATA_DDR       = DDRA
.equ COM_DATA_INPUT     = PINA
.equ COM_DATA_OUTPUT    = PORTA
.equ COM_DATA_PIN       = PORTA2

.equ COM_CLK_DDR       = DDRA
.equ COM_CLK_INPUT     = PINA
.equ COM_CLK_OUTPUT    = PORTA
.equ COM_CLK_PIN       = PORTA0

.equ COM_LED_DDR       = DDRB
.equ COM_LED_INPUT     = PINB
.equ COM_LED_OUTPUT    = PORTB
.equ COM_LED_PIN       = PORTB0


.equ COM_IRQ_ADDR_M_CLK = GIMSK
.equ COM_IRQ_BIT_M_CLK  = PCIE0
.equ COM_IRQ_ADDR_F_CLK = GIFR
.equ COM_IRQ_BIT_F_CLK  = PCIE0

.equ COM_PORTS         = 2

.equ COM_MASK_CLK0     = (1<<PINA0)
.equ COM_MASK_DATA0    = (1<<PINA2)
.equ COM_MASK_IRQ0     = (1<<PCINT0)

.equ COM_MASK_CLK1     = (1<<PINA1)
.equ COM_MASK_DATA1    = (1<<PINA3)
.equ COM_MASK_IRQ1     = (1<<PCINT1)



; ---------------------------------------------------------------------------
; TWI master module

;.equ TWI_BIT_LENGTH = 10000 ; 100000 and 200000 works for display: 10000, 100000, 200000
.equ TWI_BIT_LENGTH = 1 ; 10, 100, 500, 100000 and 200000 works for display: 10000, 100000, 200000

.equ TWI_DDR_SCL          = DDRA
.equ TWI_PORT_SCL         = PORTA
.equ TWI_PIN_SCL          = PINA
.equ TWI_PINNUM_SCL       = PORTA4

.equ TWI_DDR_SDA          = DDRA
.equ TWI_PORT_SDA         = PORTA
.equ TWI_PIN_SDA          = PINA
.equ TWI_PINNUM_SDA       = PORTA6



; ---------------------------------------------------------------------------
; SI 7021

.equ SI7021_ADDR          = 0x40



; ---------------------------------------------------------------------------
; SGB 30

.equ SGP30_ADDR           = 0x58



; ---------------------------------------------------------------------------
; SGB 40

.equ SGP40_ADDR           = 0x59


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

.equ OWI_DDR     = DDRB
.equ OWI_PORTOUT = PORTB
.equ OWI_PORTIN  = PINB
.equ OWI_PINNUM  = PORTB2



; ---------------------------------------------------------------------------
; Motion Sensor
;

.equ MOTION_DDR       = DDRB
.equ MOTION_INPUT     = PINB
.equ MOTION_OUTPUT    = PORTB
.equ MOTION_PIN       = PORTB1



; ---------------------------------------------------------------------------
; CCS 811
;

.equ CCS811_ADDR = 0x5a ; or 0x5b



; ---------------------------------------------------------------------------
; Brightness


.equ BRIGHTNESS_ADC_PORT    = PORTA ; adc0
.equ BRIGHTNESS_ADC_DDR     = DDRA
.equ BRIGHTNESS_ADC_PIN     = PORTA0
.equ BRIGHTNESS_ADC_MUX     = 0