From 3973d7b41d406f87a5b6a6d2a3b3e60e035c5f8d Mon Sep 17 00:00:00 2001
From: Erick Ahmed <engineering@erickahmed.com>
Date: Thu, 15 May 2025 22:40:52 +0200
Subject: [PATCH] Initialize pumps' digital pins

---
 firmware/atmega/include/pump.h |  8 ++++++++
 firmware/atmega/source/pump.c  | 26 ++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 firmware/atmega/include/pump.h
 create mode 100644 firmware/atmega/source/pump.c

diff --git a/firmware/atmega/include/pump.h b/firmware/atmega/include/pump.h
new file mode 100644
index 0000000..74e2dee
--- /dev/null
+++ b/firmware/atmega/include/pump.h
@@ -0,0 +1,8 @@
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include "config.h"
+
+void pumpsInit(void);
+void pumpsTrigger(uint8_t digital_pins, int16_t milliseconds);
diff --git a/firmware/atmega/source/pump.c b/firmware/atmega/source/pump.c
new file mode 100644
index 0000000..36829d3
--- /dev/null
+++ b/firmware/atmega/source/pump.c
@@ -0,0 +1,26 @@
+#include <stdint.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+void pumpsInit(void) {
+    // Set as input
+    DDRD &= ~((1 << PUMP_D7) |
+              (1 << PUMP_D6) |
+              (1 << PUMP_D5) |
+              (1 << PUMP_D4) |
+              (1 << PUMP_D3) |
+              0 | 0 | 0 ));
+    // Disable pullup
+    PORTD &= ~((1 << PUMP_D7) |
+               (1 << PUMP_D6) |
+               (1 << PUMP_D5) |
+               (1 << PUMP_D4) |
+               (1 << PUMP_D3) |
+               0 | 0 | 0 ));
+}
+
+void triggerPump(int8_t pump_pin, int16_t milliseconds) {
+    // turn on pump
+    // watchdog for n milliseconds
+    // turn of pump
+}