From 3d12b7066d27b591e0283e20ed066bc66e29fbe4 Mon Sep 17 00:00:00 2001
From: Selene ToyKeeper
Date: Fri, 10 Nov 2023 21:34:40 -0700
Subject: refactor checkpoint: splitting MCU-specific code into arch/$MCU.[ch]

Phew, that's a lot of changes!  And there's still a lot more to do...
---
 fsm/wdt.c | 78 +--------------------------------------------------------------
 1 file changed, 1 insertion(+), 77 deletions(-)

(limited to 'fsm/wdt.c')

diff --git a/fsm/wdt.c b/fsm/wdt.c
index 64f006e..1095d44 100644
--- a/fsm/wdt.c
+++ b/fsm/wdt.c
@@ -7,85 +7,9 @@
 #include <avr/interrupt.h>
 #include <avr/wdt.h>
 
-// *** Note for the AVRXMEGA3 (1-Series, eg 816 and 817), the WDT 
-// is not used for time-based interrupts.  A new peripheral, the 
-// Periodic Interrupt Timer ("PIT") is used for this purpose.
-
-void WDT_on()
-{
-    #if (ATTINY == 25) || (ATTINY == 45) || (ATTINY == 85)
-        // interrupt every 16ms
-        //cli();                          // Disable interrupts
-        wdt_reset();                    // Reset the WDT
-        WDTCR |= (1<<WDCE) | (1<<WDE);  // Start timed sequence
-        WDTCR = (1<<WDIE);              // Enable interrupt every 16ms
-        //sei();                          // Enable interrupts
-    #elif (ATTINY == 1634)
-        wdt_reset();                    // Reset the WDT
-        WDTCSR = (1<<WDIE);             // Enable interrupt every 16ms
-    #elif defined(AVRXMEGA3)  // ATTINY816, 817, etc
-        RTC.PITINTCTRL = RTC_PI_bm;   // enable the Periodic Interrupt
-        while (RTC.PITSTATUS > 0) {}  // make sure the register is ready to be updated
-        RTC.PITCTRLA = RTC_PERIOD_CYC512_gc | RTC_PITEN_bm; // Period = 16ms, enable the PI Timer
-    #else
-        #error Unrecognized MCU type
-    #endif
-}
-
-#ifdef TICK_DURING_STANDBY
-inline void WDT_slow()
-{
-    #if (ATTINY == 25) || (ATTINY == 45) || (ATTINY == 85)
-        // interrupt slower
-        //cli();                          // Disable interrupts
-        wdt_reset();                    // Reset the WDT
-        WDTCR |= (1<<WDCE) | (1<<WDE);  // Start timed sequence
-        WDTCR = (1<<WDIE) | STANDBY_TICK_SPEED; // Enable interrupt every so often
-        //sei();                          // Enable interrupts
-    #elif (ATTINY == 1634)
-        wdt_reset();                    // Reset the WDT
-        WDTCSR = (1<<WDIE) | STANDBY_TICK_SPEED;
-    #elif defined(AVRXMEGA3)  // ATTINY816, 817, etc
-        RTC.PITINTCTRL = RTC_PI_bm;   // enable the Periodic Interrupt
-        while (RTC.PITSTATUS > 0) {}  // make sure the register is ready to be updated
-        RTC.PITCTRLA = (1<<6) | (STANDBY_TICK_SPEED<<3) | RTC_PITEN_bm; // Set period, enable the PI Timer
-    #else
-        #error Unrecognized MCU type
-    #endif
-}
-#endif
-
-inline void WDT_off()
-{
-    #if (ATTINY == 25) || (ATTINY == 45) || (ATTINY == 85)
-        //cli();                          // Disable interrupts
-        wdt_reset();                    // Reset the WDT
-        MCUSR &= ~(1<<WDRF);            // Clear Watchdog reset flag
-        WDTCR |= (1<<WDCE) | (1<<WDE);  // Start timed sequence
-        WDTCR = 0x00;                   // Disable WDT
-        //sei();                          // Enable interrupts
-    #elif (ATTINY == 1634)
-        cli();                // needed because CCP, below
-        wdt_reset();          // Reset the WDT
-        MCUSR &= ~(1<<WDRF);  // clear watchdog reset flag
-        CCP = 0xD8;           // enable config changes
-        WDTCSR = 0;           // disable and clear all WDT settings
-        sei();
-    #elif defined(AVRXMEGA3)  // ATTINY816, 817, etc
-        while (RTC.PITSTATUS > 0) {}  // make sure the register is ready to be updated
-        RTC.PITCTRLA = 0; // Disable the PI Timer
-    #else
-        #error Unrecognized MCU type
-    #endif
-}
-
 // clock tick -- this runs every 16ms (62.5 fps)
-#ifdef AVRXMEGA3  // ATTINY816, 817, etc
-ISR(RTC_PIT_vect) {
-    RTC.PITINTFLAGS = RTC_PI_bm; // clear the PIT interrupt flag 
-#else
 ISR(WDT_vect) {
-#endif
+    mcu_wdt_vect_clear();
     irq_wdt = 1;  // WDT event happened
 }
 
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