diff --git a/keyboards/moon/pca9555.c b/drivers/gpio/pca9555.c
similarity index 100%
rename from keyboards/moon/pca9555.c
rename to drivers/gpio/pca9555.c
diff --git a/keyboards/moon/pca9555.h b/drivers/gpio/pca9555.h
similarity index 100%
rename from keyboards/moon/pca9555.h
rename to drivers/gpio/pca9555.h
diff --git a/keyboards/moon/rules.mk b/keyboards/moon/rules.mk
index 699fc33957..c8b39e8b7a 100644
--- a/keyboards/moon/rules.mk
+++ b/keyboards/moon/rules.mk
@@ -1,6 +1,3 @@
-# Project specific files
-SRC += i2c_master.c pca9555.c matrix.c
-
# MCU name
MCU = atmega32u4
@@ -50,10 +47,6 @@ OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
# atmega32a bootloadHID
BOOTLOADER = atmel-dfu
-
-# Supported layouts
-LAYOUTS = tkl_ansi tkl_iso
-
# Build Options
# change yes to no to disable
#
@@ -74,4 +67,13 @@ BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
AUDIO_ENABLE = no # Audio output on port C6
FAUXCLICKY_ENABLE = no # Use buzzer to emulate clicky switches
HD44780_ENABLE = no # Enable support for HD44780 based LCDs (+400)
+
+# custom matrix setup
CUSTOM_MATRIX = yes
+
+VPATH += drivers/gpio
+SRC += pca9555.c matrix.c
+QUANTUM_LIB_SRC += i2c_master.c
+
+# Supported layouts
+LAYOUTS = tkl_ansi tkl_iso
diff --git a/keyboards/xd84/pca9555.c b/keyboards/xd84/pca9555.c
deleted file mode 100644
index b0e542d8de..0000000000
--- a/keyboards/xd84/pca9555.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/* Copyright 2019
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see .
- */
-#include "i2c_master.h"
-#include "pca9555.h"
-
-#include "debug.h"
-
-#define SLAVE_TO_ADDR(n) (n << 1)
-#define TIMEOUT 100
-
-enum {
- CMD_INPUT_0 = 0,
- CMD_INPUT_1,
- CMD_OUTPUT_0,
- CMD_OUTPUT_1,
- CMD_INVERSION_0,
- CMD_INVERSION_1,
- CMD_CONFIG_0,
- CMD_CONFIG_1,
-};
-
-void pca9555_init(uint8_t slave_addr) {
- static uint8_t s_init = 0;
- if (!s_init) {
- i2c_init();
-
- s_init = 1;
- }
-
- // TODO: could check device connected
- // i2c_start(SLAVE_TO_ADDR(slave) | I2C_WRITE);
- // i2c_stop();
-}
-
-void pca9555_set_config(uint8_t slave_addr, uint8_t port, uint8_t conf) {
- uint8_t addr = SLAVE_TO_ADDR(slave_addr);
- uint8_t cmd = port ? CMD_CONFIG_1 : CMD_CONFIG_0;
-
- i2c_status_t ret = i2c_writeReg(addr, cmd, &conf, sizeof(conf), TIMEOUT);
- if (ret != I2C_STATUS_SUCCESS) {
- print("pca9555_set_config::FAILED\n");
- }
-}
-
-void pca9555_set_output(uint8_t slave_addr, uint8_t port, uint8_t conf) {
- uint8_t addr = SLAVE_TO_ADDR(slave_addr);
- uint8_t cmd = port ? CMD_OUTPUT_1 : CMD_OUTPUT_0;
-
- i2c_status_t ret = i2c_writeReg(addr, cmd, &conf, sizeof(conf), TIMEOUT);
- if (ret != I2C_STATUS_SUCCESS) {
- print("pca9555_set_output::FAILED\n");
- }
-}
-
-uint8_t pca9555_readPins(uint8_t slave_addr, uint8_t port) {
- uint8_t addr = SLAVE_TO_ADDR(slave_addr);
- uint8_t cmd = port ? CMD_INPUT_1 : CMD_INPUT_0;
-
- uint8_t data = 0;
- i2c_status_t ret = i2c_readReg(addr, cmd, &data, sizeof(data), TIMEOUT);
- if (ret != I2C_STATUS_SUCCESS) {
- print("pca9555_readPins::FAILED\n");
- }
- return data;
-}
diff --git a/keyboards/xd84/pca9555.h b/keyboards/xd84/pca9555.h
deleted file mode 100644
index ebb97e2f30..0000000000
--- a/keyboards/xd84/pca9555.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/* Copyright 2019
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see .
- */
-#pragma once
-
-/*
- PCA9555
- ,----------.
- SDA --| SDA P00 |-- P00
- SCL --| SCL P01 |-- P01
- INT --| INT P02 |-- P02
- | P03 |-- P03
- A0 --| A0 P04 |-- P04
- A1 --| A1 P05 |-- P05
- A2 --| A2 P06 |-- P06
- | P07 |-- P07
- | |
- | P10 |-- P10
- | P11 |-- P11
- | P12 |-- P12
- | P13 |-- P13
- | P14 |-- P14
- | P15 |-- P15
- | P16 |-- P16
- | P17 |-- P17
- `----------'
-*/
-
-#define PCA9555_PORT0 0
-#define PCA9555_PORT1 1
-
-#define ALL_OUTPUT 0
-#define ALL_INPUT 0xFF
-#define ALL_LOW 0
-#define ALL_HIGH 0xFF
-
-void pca9555_init(uint8_t slave_addr);
-
-void pca9555_set_config(uint8_t slave_addr, uint8_t port, uint8_t conf);
-
-void pca9555_set_output(uint8_t slave_addr, uint8_t port, uint8_t conf);
-
-uint8_t pca9555_readPins(uint8_t slave_addr, uint8_t port);
diff --git a/keyboards/xd84/rules.mk b/keyboards/xd84/rules.mk
index e0982e0401..9166452262 100644
--- a/keyboards/xd84/rules.mk
+++ b/keyboards/xd84/rules.mk
@@ -77,11 +77,13 @@ UNICODE_ENABLE = no # Unicode
BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
AUDIO_ENABLE = no # Audio output on port C6
FAUXCLICKY_ENABLE = no # Use buzzer to emulate clicky switches
-HD44780_ENABLE = no # Enable support for HD44780 based LCDs (+400)
+HD44780_ENABLE = no # Enable support for HD44780 based LCDs (+400)
LINK_TIME_OPTIMIZATION_ENABLE = yes
# custom matrix setup
CUSTOM_MATRIX = yes
+
+VPATH += drivers/gpio
SRC += custom_matrix_helper.c pca9555.c matrix.c
QUANTUM_LIB_SRC += i2c_master.c
diff --git a/keyboards/xd96/pca9555.c b/keyboards/xd96/pca9555.c
deleted file mode 100644
index b0e542d8de..0000000000
--- a/keyboards/xd96/pca9555.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/* Copyright 2019
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see .
- */
-#include "i2c_master.h"
-#include "pca9555.h"
-
-#include "debug.h"
-
-#define SLAVE_TO_ADDR(n) (n << 1)
-#define TIMEOUT 100
-
-enum {
- CMD_INPUT_0 = 0,
- CMD_INPUT_1,
- CMD_OUTPUT_0,
- CMD_OUTPUT_1,
- CMD_INVERSION_0,
- CMD_INVERSION_1,
- CMD_CONFIG_0,
- CMD_CONFIG_1,
-};
-
-void pca9555_init(uint8_t slave_addr) {
- static uint8_t s_init = 0;
- if (!s_init) {
- i2c_init();
-
- s_init = 1;
- }
-
- // TODO: could check device connected
- // i2c_start(SLAVE_TO_ADDR(slave) | I2C_WRITE);
- // i2c_stop();
-}
-
-void pca9555_set_config(uint8_t slave_addr, uint8_t port, uint8_t conf) {
- uint8_t addr = SLAVE_TO_ADDR(slave_addr);
- uint8_t cmd = port ? CMD_CONFIG_1 : CMD_CONFIG_0;
-
- i2c_status_t ret = i2c_writeReg(addr, cmd, &conf, sizeof(conf), TIMEOUT);
- if (ret != I2C_STATUS_SUCCESS) {
- print("pca9555_set_config::FAILED\n");
- }
-}
-
-void pca9555_set_output(uint8_t slave_addr, uint8_t port, uint8_t conf) {
- uint8_t addr = SLAVE_TO_ADDR(slave_addr);
- uint8_t cmd = port ? CMD_OUTPUT_1 : CMD_OUTPUT_0;
-
- i2c_status_t ret = i2c_writeReg(addr, cmd, &conf, sizeof(conf), TIMEOUT);
- if (ret != I2C_STATUS_SUCCESS) {
- print("pca9555_set_output::FAILED\n");
- }
-}
-
-uint8_t pca9555_readPins(uint8_t slave_addr, uint8_t port) {
- uint8_t addr = SLAVE_TO_ADDR(slave_addr);
- uint8_t cmd = port ? CMD_INPUT_1 : CMD_INPUT_0;
-
- uint8_t data = 0;
- i2c_status_t ret = i2c_readReg(addr, cmd, &data, sizeof(data), TIMEOUT);
- if (ret != I2C_STATUS_SUCCESS) {
- print("pca9555_readPins::FAILED\n");
- }
- return data;
-}
diff --git a/keyboards/xd96/pca9555.h b/keyboards/xd96/pca9555.h
deleted file mode 100644
index ebb97e2f30..0000000000
--- a/keyboards/xd96/pca9555.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/* Copyright 2019
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see .
- */
-#pragma once
-
-/*
- PCA9555
- ,----------.
- SDA --| SDA P00 |-- P00
- SCL --| SCL P01 |-- P01
- INT --| INT P02 |-- P02
- | P03 |-- P03
- A0 --| A0 P04 |-- P04
- A1 --| A1 P05 |-- P05
- A2 --| A2 P06 |-- P06
- | P07 |-- P07
- | |
- | P10 |-- P10
- | P11 |-- P11
- | P12 |-- P12
- | P13 |-- P13
- | P14 |-- P14
- | P15 |-- P15
- | P16 |-- P16
- | P17 |-- P17
- `----------'
-*/
-
-#define PCA9555_PORT0 0
-#define PCA9555_PORT1 1
-
-#define ALL_OUTPUT 0
-#define ALL_INPUT 0xFF
-#define ALL_LOW 0
-#define ALL_HIGH 0xFF
-
-void pca9555_init(uint8_t slave_addr);
-
-void pca9555_set_config(uint8_t slave_addr, uint8_t port, uint8_t conf);
-
-void pca9555_set_output(uint8_t slave_addr, uint8_t port, uint8_t conf);
-
-uint8_t pca9555_readPins(uint8_t slave_addr, uint8_t port);
diff --git a/keyboards/xd96/rules.mk b/keyboards/xd96/rules.mk
index 91736bd878..3a97fe5f98 100644
--- a/keyboards/xd96/rules.mk
+++ b/keyboards/xd96/rules.mk
@@ -77,10 +77,12 @@ UNICODE_ENABLE = no # Unicode
BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
AUDIO_ENABLE = no # Audio output on port C6
FAUXCLICKY_ENABLE = no # Use buzzer to emulate clicky switches
-HD44780_ENABLE = no # Enable support for HD44780 based LCDs (+400)
+HD44780_ENABLE = no # Enable support for HD44780 based LCDs (+400)
LINK_TIME_OPTIMIZATION_ENABLE = yes
# custom matrix setup
CUSTOM_MATRIX = yes
+
+VPATH += drivers/gpio
SRC += custom_matrix_helper.c pca9555.c matrix.c
QUANTUM_LIB_SRC += i2c_master.c