; ***************************************************************************
; Source file for temperature sensor node on AtTiny 84
;
; This is for the full system (i.e. not the boot loader).
;
; All definitions and changes should go into this file.
;
;
;                                 AtTiny84
;                                 --------
;                            VCC  1     14  GND
;                            PB0  2     13  PA0
;                            PB1  3     12  PA1  COM-DATA
;                  /RESET    PB3  4     11  PA2  OWI
;                  KEY1      PB2  5     10  PA3  LED
;                  COM_ATTN  PA7  6      9  PA4  TWI-SCL
;                  TWI-SDA   PA6  7      8  PA5
;                                 --------
;
; ***************************************************************************



.nolist
.include "include/tn84def.inc" ; Define device ATtiny84
.list

.include "defs.asm"



; ***************************************************************************
; defines

; ---------------------------------------------------------------------------
; generic

.equ clock=1000000 ; Define the clock frequency



; ---------------------------------------------------------------------------
; list of modules to use

#define MODULES_TIMER
#define MODULES_COM
#define MODULES_LED
#define MODULES_TWI_MASTER
#define MODULES_LCD
#define MODULES_SI7021


.equ VALUE_ID_TEMP1 = 0x01
.equ VALUE_ID_HUM1  = 0x02



; ---------------------------------------------------------------------------
; EEPROM positions


.equ EEPROM_OFFS_UUID    = 0    ; 4 bytes (occupy total of 8 bytes for extensibility)
.equ EEPROM_OFFS_COMADDR = 8    ; 1 byte


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

.equ COM_BIT_LENGTH      = 52000 ; 104000=9600, 52000=19200, 26000=38400

.equ COM_DDR_DATA        = DDRA
.equ COM_PORT_DATA       = PORTA
.equ COM_PIN_DATA        = PINA
.equ COM_PINNUM_DATA     = PORTA1

.equ COM_DDR_ATTN        = DDRA
.equ COM_PORT_ATTN       = PORTA
.equ COM_PIN_ATTN        = PINA
.equ COM_PINNUM_ATTN     = PORTA7

.equ COM_IRQ_ADDR_ATTN   = PCMSK0
.equ COM_IRQ_BIT_ATTN    = 7              ; bit 7 in PCMSK0
.equ COM_IRQ_GIFR_ATTN   = PCIF0
.equ COM_IRQ_GIMSK_ATTN  = PCIE0



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

.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



; ---------------------------------------------------------------------------
; LCD module

.equ LCD_TWI_ADDRESS      = 0x3c



; ---------------------------------------------------------------------------
; BMP 280

.equ BMP280_ADDR          = 0x76



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

.equ SI7021_ADDR          = 0x40





; ***************************************************************************
; code segment

.cseg
.org 000000



; ---------------------------------------------------------------------------
; Reset and interrupt vectors

	rjmp main ; Reset vector
	reti ; EXT_INT0
	rjmp comIsrPcint0 ; PCI0
	reti ; PCI1
	reti ; WATCHDOG
	reti ; ICP1
	reti ; OC1A
	reti ; OC1B
	reti ; OVF1
        rjmp timerIrqOC0A ; OC0A
	reti ; OC0B
	reti ; OVF0
	reti ; ACI
	reti ; ADCC
	reti ; ERDY
	reti ; USI_STR
	reti ; USI_OVF





; ---------------------------------------------------------------------------
; maintenance system starts here.

.org 0x50


realInterruptTable:
	rjmp main ; Reset vector
	reti ; EXT_INT0
	rjmp comIsrPcint0 ; PCI0
	reti ; PCI1
	reti ; WATCHDOG
	reti ; ICP1
	reti ; OC1A
	reti ; OC1B
	reti ; OVF1
        rjmp timerIrqOC0A ; OC0A
	reti ; OC0B
	reti ; OVF0
	reti ; ACI
	reti ; ADCC
	reti ; ERDY
	reti ; USI_STR
	reti ; USI_OVF


; ***************************************************************************
; includes

.include "utils.asm"
.include "timer.asm"
.include "led.asm"
.include "com.asm"
.include "comproto.asm"
.include "twimaster.asm"
.include "lcd.asm"
;.include "bmp280.asm"
.include "si7021.asm"



; ***************************************************************************
; data in SRAM

.dseg

ledA3Sram:   .byte LED_SRAM_SIZE




; ***************************************************************************
; data in EEPROM

.eseg




; ***************************************************************************
; data in FLASH

.cseg

ledA3Flash:    .db DDRA+0x20, PORTA+0x20, PINA+0x20, (1<<PORTA3)
blinkPattern:  .db 5, 5, 5, 5, 5, 10, 0xff, 0xff   ; 3 short blinks, 1s pause, restart
blinkPattern2: .db 10, 20, 0xff, 0xff   ; 1 long blink, 2s pause, restart


.include "main.asm"



; ---------------------------------------------------------------------------
; onSystemStart
;
; Called on first time run, i.e. on system start.
;
; IN:
; - nothing
; OUT:
; - nothing
; USED: depending on called routines

onSystemStart:


#ifdef MODULES_COM
  rcall Utils_SetupUid
;  brcc onSystemStart_l1
  ldi r16, 0xff
  rcall CPRO_EnqueueNeedAddress
onSystemStart_l1:
#endif

  ret



; ---------------------------------------------------------------------------
; onEvery100ms
;
; Called every 100ms. Add your routine calls here.
;
; IN:
; - nothing
; OUT:
; - nothing
; USED: depending on called routines

onEvery100ms:
#ifdef MODULES_LED
  ; ticker for LED module
  ldi zl, LOW(ledA3Flash)
  ldi zh, HIGH(ledA3Flash)
  ldi yl, LOW(ledA3Sram)
  ldi yh, HIGH(ledA3Sram)
  rcall Led_Tick
#endif

  ; add more calls here
  
  ret



; ---------------------------------------------------------------------------
; onEverySecond
;
; Called every second. Add your routine calls here.
;
; IN:
; - nothing
; OUT:
; - nothing
; USED: depending on called routines

onEverySecond:
;  rcall TWI_Master_ScanNext
  ret



; ---------------------------------------------------------------------------
; onEvery10s
;
; Called every 10 seconds. Add your routine calls here.
;
; IN:
; - nothing
; OUT:
; - nothing
; USED: depending on called routines

onEvery10s:
  rcall printSendStats
  ret



; ---------------------------------------------------------------------------
; onEvery30s
;
; Called every 10 seconds. Add your routine calls here.
;
; IN:
; - nothing
; OUT:
; - nothing
; USED: depending on called routines

onEvery30s:
#ifdef MODULES_SI7021
  rcall SI7021_PeriodicMeasurement
  rcall Main_SendValueMsg
#endif
  ret



; ---------------------------------------------------------------------------
; onEveryMinute
;
; Called every minute. Add your routine calls here.
;
; IN:
; - nothing
; OUT:
; - nothing
; USED: depending on called routines

onEveryMinute:
  in r15, SREG ; debug
  cli
  push r15

#ifdef MODULES_COM
    ldi r16, 219
    rcall CPRO_EnqueueComSendStats

    ;ldi r16, 219
    ;rcall CPRO_EnqueuePing
#endif

  pop r15
  out SREG, r15
  ret



; ---------------------------------------------------------------------------
; onPacketReceived:
;
; Called after a packet was received via COM module. Add your routine calls here.
;
; The packet will be removed from buffer in any case after return from this call.
; IN:
; - Y  : pointer to received buffer
; OUT:
; - CFLAG: set if handled, cleared otherwise
; USED: depending on called routines

onPacketReceived:
  clc               ; not handled
  ret