diff --git a/tmk_core/common/avr/gpio.h b/tmk_core/common/avr/gpio.h
index 231556c29c..e9be68491d 100644
--- a/tmk_core/common/avr/gpio.h
+++ b/tmk_core/common/avr/gpio.h
@@ -20,6 +20,8 @@
 
 typedef uint8_t pin_t;
 
+/* Operation of GPIO by pin. */
+
 #define setPinInput(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF))
 #define setPinInputHigh(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) |= _BV((pin)&0xF))
 #define setPinInputLow(pin) _Static_assert(0, "AVR processors cannot implement an input as pull low")
@@ -32,3 +34,16 @@ typedef uint8_t pin_t;
 #define readPin(pin) ((bool)(PINx_ADDRESS(pin) & _BV((pin)&0xF)))
 
 #define togglePin(pin) (PORTx_ADDRESS(pin) ^= _BV((pin)&0xF))
+
+/* Operation of GPIO by port. */
+
+typedef uint8_t port_data_t;
+
+#define readPort(port) PINx_ADDRESS(port)
+
+#define setPortBitInput(port, bit) (DDRx_ADDRESS(port) &= ~_BV((bit)&0xF), PORTx_ADDRESS(port) &= ~_BV((bit)&0xF))
+#define setPortBitInputHigh(port, bit) (DDRx_ADDRESS(port) &= ~_BV((bit)&0xF), PORTx_ADDRESS(port) |= _BV((bit)&0xF))
+#define setPortBitOutput(port, bit) (DDRx_ADDRESS(port) |= _BV((bit)&0xF))
+
+#define writePortBitLow(port, bit) (PORTx_ADDRESS(port) &= ~_BV((bit)&0xF))
+#define writePortBitHigh(port, bit) (PORTx_ADDRESS(port) |= _BV((bit)&0xF))
diff --git a/tmk_core/common/chibios/gpio.h b/tmk_core/common/chibios/gpio.h
index 5d0e142abc..4d057f1cab 100644
--- a/tmk_core/common/chibios/gpio.h
+++ b/tmk_core/common/chibios/gpio.h
@@ -20,6 +20,8 @@
 
 typedef ioline_t pin_t;
 
+/* Operation of GPIO by pin. */
+
 #define setPinInput(pin) palSetLineMode(pin, PAL_MODE_INPUT)
 #define setPinInputHigh(pin) palSetLineMode(pin, PAL_MODE_INPUT_PULLUP)
 #define setPinInputLow(pin) palSetLineMode(pin, PAL_MODE_INPUT_PULLDOWN)
@@ -32,3 +34,17 @@ typedef ioline_t pin_t;
 #define readPin(pin) palReadLine(pin)
 
 #define togglePin(pin) palToggleLine(pin)
+
+/* Operation of GPIO by port. */
+
+typedef uint16_t port_data_t;
+
+#define readPort(pin) palReadPort(PAL_PORT(pin))
+
+#define setPortBitInput(pin, bit) palSetPadMode(PAL_PORT(pin), bit, PAL_MODE_INPUT)
+#define setPortBitInputHigh(pin, bit) palSetPadMode(PAL_PORT(pin), bit, PAL_MODE_INPUT_PULLUP)
+#define setPortBitInputLow(pin, bit) palSetPadMode(PAL_PORT(pin), bit, PAL_MODE_INPUT_PULLDOWN)
+#define setPortBitOutput(pin, bit) palSetPadMode(PAL_PORT(pin), bit, PAL_MODE_OUTPUT_PUSHPULL)
+
+#define writePortBitLow(pin, bit) palClearLine(PAL_LINE(PAL_PORT(pin), bit))
+#define writePortBitHigh(pin, bit) palSetLine(PAL_LINE(PAL_PORT(pin), bit))