Update ps2avrgb template to use standard matrix/i2c code (#4957)

* Update ps2avrgb template to use standard matrix/i2c code

* Default to an 8x11 matrix in the ps2avrgb template

7 files changed, 99 insertions, 270 deletions

diff --git a/quantum/template/avr/template.c b/quantum/template/avr/template.c
index 1e4ce26cd..86dc69abc 100644
--- a/quantum/template/avr/template.c
+++ b/quantum/template/avr/template.c
@@ -15,29 +15,37 @@
  */
 #include "%KEYBOARD%.h"
 
+// Optional override functions below.
+// You can leave any or all of these undefined.
+// These are only required if you want to perform custom actions.
+
+/*
+
 void matrix_init_kb(void) {
-        // put your keyboard start-up code here
-        // runs once when the firmware starts up
+  // put your keyboard start-up code here
+  // runs once when the firmware starts up
 
-        matrix_init_user();
+  matrix_init_user();
 }
 
 void matrix_scan_kb(void) {
-        // put your looping keyboard code here
-        // runs every cycle (a lot)
+  // put your looping keyboard code here
+  // runs every cycle (a lot)
 
-        matrix_scan_user();
+  matrix_scan_user();
 }
 
 bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
-        // put your per-action keyboard code here
-        // runs for every action, just before processing by the firmware
+  // put your per-action keyboard code here
+  // runs for every action, just before processing by the firmware
 
-        return process_record_user(keycode, record);
+  return process_record_user(keycode, record);
 }
 
 void led_set_kb(uint8_t usb_led) {
-        // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+  // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
 
-        led_set_user(usb_led);
+  led_set_user(usb_led);
 }
+
+*/
diff --git a/quantum/template/ps2avrgb/config.h b/quantum/template/ps2avrgb/config.h
index 01cdf932e..8d9a993cf 100644
--- a/quantum/template/ps2avrgb/config.h
+++ b/quantum/template/ps2avrgb/config.h
@@ -21,17 +21,20 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define VENDOR_ID       0x20A0
 #define PRODUCT_ID      0x422D
+#define DEVICE_VER      0x0001
 #define MANUFACTURER    You
 #define PRODUCT         %KEYBOARD%
+#define DESCRIPTION     A custom keyboard
 
 #define RGBLED_NUM 16
 
-#define MATRIX_ROWS 2
-#define MATRIX_COLS 3
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 11
 
-#define MATRIX_ROW_PINS { D0, D5 }
-#define MATRIX_COL_PINS { F1, F0, B0 }
-#define UNUSED_PINS
+#define MATRIX_ROW_PINS { B0, B1, B2, B3, B4, B5, B6, B7 }
+#define MATRIX_COL_PINS { A0, A1, A2, A3, A4, A5, A6, A7, C7, C6, C5 }
+// #define MATRIX_COL_PINS { A0, A1, A2, A3, A4, A5, A6, A7, C7, C6, C5, C4, C3, C2, C1, C0, D7 }
+#define UNUSED_PINS     {}
 
 #define DIODE_DIRECTION COL2ROW
 #define DEBOUNCING_DELAY 5
diff --git a/quantum/template/ps2avrgb/i2c.c b/quantum/template/ps2avrgb/i2c.c
deleted file mode 100644
index e8c4455ad..000000000
--- a/quantum/template/ps2avrgb/i2c.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
-Copyright 2016 Luiz Ribeiro <luizribeiro@gmail.com>
-
-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/>.
-*/
-
-// Please do not modify this file
-
-#include <avr/io.h>
-#include <util/twi.h>
-
-#include "i2c.h"
-
-void i2c_set_bitrate(uint16_t bitrate_khz) {
-    uint8_t bitrate_div = ((F_CPU / 1000l) / bitrate_khz);
-    if (bitrate_div >= 16) {
-        bitrate_div = (bitrate_div - 16) / 2;
-    }
-    TWBR = bitrate_div;
-}
-
-void i2c_init(void) {
-    // set pull-up resistors on I2C bus pins
-    PORTC |= 0b11;
-
-    i2c_set_bitrate(400);
-
-    // enable TWI (two-wire interface)
-    TWCR |= (1 << TWEN);
-
-    // enable TWI interrupt and slave address ACK
-    TWCR |= (1 << TWIE);
-    TWCR |= (1 << TWEA);
-}
-
-uint8_t i2c_start(uint8_t address) {
-    // reset TWI control register
-    TWCR = 0;
-
-    // begin transmission and wait for it to end
-    TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
-    while (!(TWCR & (1<<TWINT)));
-
-    // check if the start condition was successfully transmitted
-    if ((TWSR & 0xF8) != TW_START) {
-        return 1;
-    }
-
-    // transmit address and wait
-    TWDR = address;
-    TWCR = (1<<TWINT) | (1<<TWEN);
-    while (!(TWCR & (1<<TWINT)));
-
-    // check if the device has acknowledged the READ / WRITE mode
-    uint8_t twst = TW_STATUS & 0xF8;
-    if ((twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK)) {
-        return 1;
-    }
-
-    return 0;
-}
-
-void i2c_stop(void) {
-    TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
-}
-
-uint8_t i2c_write(uint8_t data) {
-    TWDR = data;
-
-    // transmit data and wait
-    TWCR = (1<<TWINT) | (1<<TWEN);
-    while (!(TWCR & (1<<TWINT)));
-
-    if ((TWSR & 0xF8) != TW_MT_DATA_ACK) {
-        return 1;
-    }
-
-    return 0;
-}
-
-uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length) {
-    if (i2c_start(address)) {
-        return 1;
-    }
-
-    for (uint16_t i = 0; i < length; i++) {
-        if (i2c_write(data[i])) {
-            return 1;
-        }
-    }
-
-    i2c_stop();
-
-    return 0;
-}
diff --git a/quantum/template/ps2avrgb/i2c.h b/quantum/template/ps2avrgb/i2c.h
deleted file mode 100644
index 7ce50cdb5..000000000
--- a/quantum/template/ps2avrgb/i2c.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
-Copyright 2016 Luiz Ribeiro <luizribeiro@gmail.com>
-
-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/>.
-*/
-
-// Please do not modify this file
-
-#ifndef __I2C_H__
-#define __I2C_H__
-
-void i2c_init(void);
-void i2c_set_bitrate(uint16_t bitrate_khz);
-uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length);
-
-#endif
diff --git a/quantum/template/ps2avrgb/matrix.c b/quantum/template/ps2avrgb/matrix.c
deleted file mode 100644
index 245813dfd..000000000
--- a/quantum/template/ps2avrgb/matrix.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
-Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
-
-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 <avr/io.h>
-#include <util/delay.h>
-
-#include "matrix.h"
-
-#ifndef DEBOUNCE
-#   define DEBOUNCE     5
-#endif
-
-static uint8_t debouncing = DEBOUNCE;
-
-static matrix_row_t matrix[MATRIX_ROWS];
-static matrix_row_t matrix_debouncing[MATRIX_ROWS];
-
-void matrix_set_row_status(uint8_t row);
-uint8_t bit_reverse(uint8_t x);
-
-void matrix_init(void) {
-    // all outputs for rows high
-    DDRB = 0xFF;
-    PORTB = 0xFF;
-    // all inputs for columns
-    DDRA = 0x00;
-    DDRC &= ~(0x111111<<2);
-    DDRD &= ~(1<<PIND7);
-    // all columns are pulled-up
-    PORTA = 0xFF;
-    PORTC |= (0b111111<<2);
-    PORTD |= (1<<PIND7);
-
-    // initialize matrix state: all keys off
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        matrix[row] = 0x00;
-        matrix_debouncing[row] = 0x00;
-    }
-
-    matrix_init_quantum();
-}
-
-uint8_t matrix_scan(void) {
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        matrix_set_row_status(row);
-        _delay_us(5);
-
-        matrix_row_t cols = (
-            // cols 0..7, PORTA 0 -> 7
-            (~PINA) & 0xFF
-        ) | (
-            // cols 8..13, PORTC 7 -> 0
-            bit_reverse((~PINC) & 0xFF) << 8
-        ) | (
-            // col 14, PORTD 7
-            ((~PIND) & (1 << PIND7)) << 7
-        );
-
-        if (matrix_debouncing[row] != cols) {
-            matrix_debouncing[row] = cols;
-            debouncing = DEBOUNCE;
-        }
-    }
-
-    if (debouncing) {
-        if (--debouncing) {
-            _delay_ms(1);
-        } else {
-            for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-                matrix[i] = matrix_debouncing[i];
-            }
-        }
-    }
-
-    matrix_scan_quantum();
-
-    return 1;
-}
-
-// declarations
-void matrix_set_row_status(uint8_t row) {
-    DDRB = (1 << row);
-    PORTB = ~(1 << row);
-}
-
-uint8_t bit_reverse(uint8_t x) {
-    x = ((x >> 1) & 0x55) | ((x << 1) & 0xaa);
-    x = ((x >> 2) & 0x33) | ((x << 2) & 0xcc);
-    x = ((x >> 4) & 0x0f) | ((x << 4) & 0xf0);
-    return x;
-}
-
-inline matrix_row_t matrix_get_row(uint8_t row) {
-    return matrix[row];
-}
-
-void matrix_print(void) {
-}
diff --git a/quantum/template/ps2avrgb/rules.mk b/quantum/template/ps2avrgb/rules.mk
index bcd7dff99..191a13844 100644
--- a/quantum/template/ps2avrgb/rules.mk
+++ b/quantum/template/ps2avrgb/rules.mk
@@ -42,9 +42,7 @@ RGBLIGHT_CUSTOM_DRIVER = yes
 
 OPT_DEFS = -DDEBUG_LEVEL=0
 
-# custom matrix setup
-CUSTOM_MATRIX = yes
-SRC = matrix.c i2c.c
+SRC += i2c_master.c
 
 # programming options
 PROGRAM_CMD = ./util/atmega32a_program.py $(TARGET).hex
diff --git a/quantum/template/ps2avrgb/template.c b/quantum/template/ps2avrgb/template.c
index 08156c562..3f920de48 100644
--- a/quantum/template/ps2avrgb/template.c
+++ b/quantum/template/ps2avrgb/template.c
@@ -13,13 +13,78 @@
  * 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 "%KEYBOARD%.h"
 
-#include <avr/pgmspace.h>
-#include "action_layer.h"
-#include "i2c.h"
-#include "quantum.h"
+#ifdef RGBLIGHT_ENABLE
+
+#include <string.h>
+#include "i2c_master.h"
+#include "rgblight.h"
+
+extern rgblight_config_t rgblight_config;
+
+void matrix_init_kb(void) {
+  i2c_init();
+  // call user level keymaps, if any
+  matrix_init_user();
+}
+
+// custom RGB driver
+void rgblight_set(void) {
+  if (!rgblight_config.enable) {
+    memset(led, 0, 3 * RGBLED_NUM);
+  }
+
+  i2c_transmit(0xb0, (uint8_t*)led, 3 * RGBLED_NUM, 100);
+}
+
+bool rgb_init = false;
+
+void matrix_scan_kb(void) {
+  // if LEDs were previously on before poweroff, turn them back on
+  if (rgb_init == false && rgblight_config.enable) {
+    i2c_transmit(0xb0, (uint8_t*)led, 3 * RGBLED_NUM, 100);
+    rgb_init = true;
+  }
+
+  rgblight_task();
+  matrix_scan_user();
+}
+
+#endif
 
-__attribute__ ((weak))
-void matrix_scan_user(void) {
+// Optional override functions below.
+// You can leave any or all of these undefined.
+// These are only required if you want to perform custom actions.
+
+/*
+
+void matrix_init_kb(void) {
+  // put your keyboard start-up code here
+  // runs once when the firmware starts up
+
+  matrix_init_user();
 }
+
+void matrix_scan_kb(void) {
+  // put your looping keyboard code here
+  // runs every cycle (a lot)
+
+  matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+  // put your per-action keyboard code here
+  // runs for every action, just before processing by the firmware
+
+  return process_record_user(keycode, record);
+}
+
+void led_set_kb(uint8_t usb_led) {
+  // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+
+  led_set_user(usb_led);
+}
+
+*/