remove custom i2c and led driver

6 files changed, 69 insertions, 285 deletions

diff --git a/keyboards/winkeyless/bface/backlight_ps2avrGB.c b/keyboards/winkeyless/bface/backlight_ps2avrGB.c
deleted file mode 100644
index c0f642840..000000000
--- a/keyboards/winkeyless/bface/backlight_ps2avrGB.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/* Copyright 2017 Sebastian Kaim
- *
- * 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/>.
- */
-
-#ifdef BACKLIGHT_ENABLE
-
-#include "backlight_ps2avrGB.h"
-#define sbi(reg,bit)	reg |= (_BV(bit))
-#define cbi(reg,bit)	reg &= (~_BV(bit))
-#define PWM10	WGM10
-#define PWM11	WGM11
-#define COM1x1 COM1B1
-#define OCR1x  OCR1B
-
-void backlight_init_ports(void)
-{
-#if BACKLIGHT_ON_STATE == 0
-	backlight_off();
-#else
-	backlight_on();
-#endif
-
-	// setup pwm
-	// this bitmagic is sourced from the original firmware
-	/*TCCR1B = ((TCCR1B & ~0x07) | 0x03);
-	TCNT1H = 0;
-	TCNT1L = 0;
-	sbi(TIMSK, TOIE1);
-	OCR1BH = 0;
-	OCR1BL = 0;
-	cbi(TCCR1A,PWM11);
-	sbi(TCCR1A,PWM10);
-	sbi(TCCR1A,COM1B1);
-	cbi(TCCR1A,COM1B0);*/
-	ICR1 = 0xFFFF;
-
-    TCCR1A = _BV(COM1x1) | _BV(WGM11); // = 0b00001010;
-    TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
-
-	backlight_init();
-}
-
-void backlight_set(uint8_t level)
-{
-	if( level == 0 ) {
-		backlight_off();
-	}
-	else {
-		backlight_on();
-		/*uint8_t pwm = get_pwm_for_brightness(level);
-		set_backlight_pwm(pwm);
-		TCCR1A |= _BV(COM1x1);
-		OCR1x = (level >= 2) ? 0xFFFF : 0x00FF;*/
-	}
-}
-
-#define PWM_MAX 0xFF
-uint8_t get_pwm_for_brightness(uint8_t level)
-{
-	// we need to cast up here to allow multiplication with 0xFF. We could also use floats, but this is probably a lot faster.
-	uint16_t brightness = (uint16_t)level * (uint16_t)PWM_MAX / (uint16_t)BACKLIGHT_LEVELS;
-	return (uint8_t)brightness;
-}
-
-void backlight_on(void)
-{
-	//_SFR_IO8(0x12) |= _BV(0x4);
-	LED_PIN |= BACKLIGHT_PORT_NUM;
-}
-
-void backlight_off(void)
-{
-	//_SFR_IO8(0x12) &= ~_BV(0x4);
-	LED_PIN &= ~BACKLIGHT_PORT_NUM;
-}
-
-void set_backlight_pwm(uint8_t level) {
-	// this does not work (yet)
-	//OCR1B = level;
-}
-
-#endif // BACKLIGHT_ENABLE
diff --git a/keyboards/winkeyless/bface/backlight_ps2avrGB.h b/keyboards/winkeyless/bface/backlight_ps2avrGB.h
deleted file mode 100644
index d5ca90399..000000000
--- a/keyboards/winkeyless/bface/backlight_ps2avrGB.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/* Copyright 2017 Sebastian Kaim
- *
- * 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/>.
- */
-
-
-#if defined(__AVR__)
-#include <avr/pgmspace.h>
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#endif
-#include <stddef.h>
-#include <stdlib.h>
-#include "backlight.h"
-
-#ifndef PS2AVRGB_BACKLIGHT_H
-#define PS2AVRGB_BACKLIGHT_H
-
-uint8_t get_pwm_for_brightness(uint8_t level);
-void set_backlight_pwm(uint8_t level);
-void backlight_on(void);
-void backlight_off(void);
-
-#endif
diff --git a/keyboards/winkeyless/bface/bface.c b/keyboards/winkeyless/bface/bface.c
index 8422a4a40..1c83be4b8 100644
--- a/keyboards/winkeyless/bface/bface.c
+++ b/keyboards/winkeyless/bface/bface.c
@@ -1,30 +1,23 @@
-/*
-Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
-Copyright 2018 Sebastian Kaim <sebb@sebb767.de>
-
-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 "bface.h"
+/* Copyright 2019 MechMerlin
+ *
+ * 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 "rgblight.h"
-
-#include <avr/pgmspace.h>
-
-#include "action_layer.h"
-#include "i2c.h"
+#include "i2c_master.h"
 #include "quantum.h"
 
+#ifdef RGBLIGHT_ENABLE
 extern rgblight_config_t rgblight_config;
 
 void rgblight_set(void) {
@@ -37,10 +30,59 @@ void rgblight_set(void) {
     }
 
     i2c_init();
-    i2c_send(0xb0, (uint8_t*)led, 3 * RGBLED_NUM);
+    i2c_transmit(0xb0, (uint8_t*)led, 3 * RGBLED_NUM, 100);
+}
+#endif
+
+void matrix_init_kb(void) {
+#ifdef RGBLIGHT_ENABLE
+    if (rgblight_config.enable) {
+        i2c_init();
+        i2c_transmit(0xb0, (uint8_t*)led, 3 * RGBLED_NUM, 100);
+    }
+#endif
+    // call user level keymaps, if any
+    matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+#ifdef RGBLIGHT_ENABLE
+    rgblight_task();
+#endif
+    matrix_scan_user();
+    /* Nothing else for now. */
 }
 
 __attribute__ ((weak))
 void matrix_scan_user(void) {
-    rgblight_task();
+}
+
+void backlight_init_ports(void) {
+    // initialize pins D0, D1, D4 and D6 as output
+    setPinOutput(D0);
+    setPinOutput(D1);
+    setPinOutput(D4);
+    setPinOutput(D6);
+
+    // turn backlight LEDs on
+    writePinHigh(D0);
+    writePinHigh(D1);
+    writePinHigh(D4);
+    writePinHigh(D6);
+}
+
+void backlight_set(uint8_t level) {
+	if (level == 0) {
+        // turn backlight LEDs off
+        writePinLow(D0);
+        writePinLow(D1);
+        writePinLow(D4);
+        writePinLow(D6);
+	} else {
+        // turn backlight LEDs on
+        writePinHigh(D0);
+        writePinHigh(D1);
+        writePinHigh(D4);
+        writePinHigh(D6);
+	}
 }
diff --git a/keyboards/winkeyless/bface/i2c.c b/keyboards/winkeyless/bface/i2c.c
deleted file mode 100644
index c27f3e3d1..000000000
--- a/keyboards/winkeyless/bface/i2c.c
+++ /dev/null
@@ -1,104 +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/>.
-*/
-
-#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/keyboards/winkeyless/bface/i2c.h b/keyboards/winkeyless/bface/i2c.h
deleted file mode 100644
index 27c9d3d05..000000000
--- a/keyboards/winkeyless/bface/i2c.h
+++ /dev/null
@@ -1,25 +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/>.
-*/
-
-#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/keyboards/winkeyless/bface/rules.mk b/keyboards/winkeyless/bface/rules.mk
index 49b012e52..b6d172f26 100644
--- a/keyboards/winkeyless/bface/rules.mk
+++ b/keyboards/winkeyless/bface/rules.mk
@@ -40,7 +40,7 @@ OPT_DEFS = -DDEBUG_LEVEL=0
 OPT_DEFS += -DBOOTLOADER_SIZE=2048
 
 # custom matrix setup
-SRC = i2c.c backlight_ps2avrGB.c
+SRC = i2c_master.c
 
 # programming options
 PROGRAM_CMD = ./util/atmega32a_program.py $(TARGET).hex