Relocate pca9555 driver to core (#6563)

* Move pca9555 files to central location

* Get pca9555 boards compiling

* Slight alignment of rules.mk

3 files changed, 9 insertions, 140 deletions

diff --git a/keyboards/moon/pca9555.c b/keyboards/moon/pca9555.c
deleted file mode 100644
index b0e542d8de..0000000000
--- a/keyboards/moon/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 <http://www.gnu.org/licenses/>.
- */
-#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/moon/pca9555.h b/keyboards/moon/pca9555.h
deleted file mode 100644
index ebb97e2f30..0000000000
--- a/keyboards/moon/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 <http://www.gnu.org/licenses/>.
- */
-#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/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