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



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

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

.equ COM_DDR_DATA DDRA
.equ COM_PORT_DATA PORTA
.equ COM_PIN_DATA PINA
.equ COM_PINMASK_DATA (1<<PORTA1)
.equ COM_PINNUM_DATA PORTA1

.equ COM_DDR_ATTN DDRA
.equ COM_PORT_ATTN PORTA
.equ COM_PIN_ATTN PINA
.equ COM_PINMASK_ATTN (1<<PORTA7)
.equ COM_PINNUM_ATTN PORTA7

.equ COM_IRQ_ADDR_ATTN PCMSK0
.equ COM_IRQ_MASK_ATTN (1<<7)  ; bit 7 in PCMSK0
.equ COM_IRQ_GIFR_ATTN (1 << PCIF0)



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

.cseg
.org 000000

; ***************************************************************************
; Reset and interrupt vectors

	rjmp main ; Reset vector
	reti ; EXT_INT0
	reti ; 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 "ringbuffer.asm"
.include "timer.asm"
.include "led.asm"
.include "com.asm"
.include "utils.asm"



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

.dseg

ledA3Sram:   .byte LED_SRAM_SIZE
wanA7A1Sram: .byte COM_SRAM_SIZE



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

.cseg

ledA3Flash:   .db DDRA+0x20, PORTA+0x20, PINA+0x20, (1<<PORTA3)
comA7A1Flash: .db 1, 0                                          ; id, flags
              .db DDRA+0x20, PORTA+0x20, PINA+0x20, (1<<PORTA1) ; port info for DATA line
              .db DDRA+0x20, PORTA+0x20, PINA+0x20, (1<<PORTA7) ; port info for ATTN line
              .db 0, 0x80                                       ; ATTN: PCINT irq type, irq mask (e.g. for PCMSK0)
blinkPattern:  .db 5, 5, 5, 5, 5, 10, 0xff, 0xff   ; 3 short blinks, 1s pause, restart





main:
  ; setup stack
  .ifdef SPH               ; if SPH is defined
    ldi r16, High(RAMEND)
    out SPH, r16           ; init MSB stack pointer
  .endif
  ldi r16, Low(RAMEND)
  out SPL, r16             ; init LSB stack pointer
  
  rcall initModules
  sei ; Enable interrupts

  ldi xl, LOW(blinkPattern)  ; debug: set blink pattern
  ldi xh, HIGH(blinkPattern)
  ldi zl, LOW(ledA3Flash)
  ldi zh, HIGH(ledA3Flash)
  ldi yl, LOW(ledA3Sram)
  ldi yh, HIGH(ledA3Sram)
  rcall Led_SetPattern
  
main_loop:
    rcall runModulesUntilIdle
;    sbi DDRA, PORTA2 ; debug
;    sbi PINA, PORTA2 ; debug (toggle)
;    cbi PORTA, PORTA2 ; debug (on)
;    sbi PORTA, PORTA2 ; debug (off)
  
    ; only modify SE, SM1 and SM0
    in r16, MCUCR
    ldi r17, (1<<SE) | (1<<SM1) | (1<<SM0)
    neg r17
    and r16, r17
    ori r16, (1<<SE)           ; sleep mode "idle", enable
    out MCUCR, r16
    sleep                      ; sleep, wait for interrupt
  rjmp main_loop




; ***************************************************************************
; initModules
;
; Call init functions of the used modules. Add your routine calls here.
;
; IN:
; - nothing
; OUT:
; - nothing
; USED: depending on called routines

initModules:
  rcall Timer_Init

  ldi zl, LOW(ledA3Flash)
  ldi zh, HIGH(ledA3Flash)
  ldi yl, LOW(ledA3Sram)
  ldi yh, HIGH(ledA3Sram)
  rcall Led_Init
  ret



; ***************************************************************************
; runModulesUntilIdle
;
; Call run functions of the used modules. Add your routine calls here.
;
; IN:
; - nothing
; OUT:
; - nothing
; USED: depending on called routines

runModulesUntilIdle:

runModulesUntilIdle_Timer:       ; repeat this block for every run function
    rcall Timer_Run              ;
  brcs runModulesUntilIdle_Timer ;

  ret



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

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

  ; add more calls here
  
  ret



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

onEverySecond:
  ret