rgblight support for ps2avrGB

build_keyboard.mk

@@ -198,7 +198,9 @@ endif
 
 ifeq ($(strip $(RGBLIGHT_ENABLE)), yes)
     OPT_DEFS += -DRGBLIGHT_ENABLE
-    SRC += $(QUANTUM_DIR)/light_ws2812.c
+ifneq ($(strip $(DISABLE_WS2812)), yes)
+        SRC += $(QUANTUM_DIR)/light_ws2812.c
+endif
     SRC += $(QUANTUM_DIR)/rgblight.c
     CIE1931_CURVE = yes
     LED_BREATHING_TABLE = yes

keyboards/ps2avrGB/config.h

@@ -29,6 +29,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MATRIX_ROWS 8
 #define MATRIX_COLS 15
 
+#define RGBLED_NUM 16
+#define RGBLIGHT_ANIMATIONS
+
 #define NO_UART 1
 #define BOOTLOADHID_BOOTLOADER 1
 

keyboards/ps2avrGB/i2c.c

@@ -0,0 +1,104 @@
+/*
+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;
+}

keyboards/ps2avrGB/i2c.h

@@ -0,0 +1,25 @@
+/*
+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

keyboards/ps2avrGB/keymaps/default/keymap.c

@@ -16,6 +16,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "ps2avrGB.h"
+#include "action_layer.h"
+#include "rgblight.h"
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     KC_KEYMAP(
@@ -28,5 +30,69 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     )
 };
 
-const uint16_t PROGMEM fn_actions[] = {
+enum function_id {
+    RGBLED_TOGGLE,
+    RGBLED_STEP_MODE,
+    RGBLED_INCREASE_HUE,
+    RGBLED_DECREASE_HUE,
+    RGBLED_INCREASE_SAT,
+    RGBLED_DECREASE_SAT,
+    RGBLED_INCREASE_VAL,
+    RGBLED_DECREASE_VAL,
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+    [0] = ACTION_FUNCTION(RGBLED_TOGGLE),
+    [1] = ACTION_FUNCTION(RGBLED_STEP_MODE),
+    [2] = ACTION_FUNCTION(RGBLED_INCREASE_HUE),
+    [3] = ACTION_FUNCTION(RGBLED_DECREASE_HUE),
+    [4] = ACTION_FUNCTION(RGBLED_INCREASE_SAT),
+    [5] = ACTION_FUNCTION(RGBLED_DECREASE_SAT),
+    [6] = ACTION_FUNCTION(RGBLED_INCREASE_VAL),
+    [7] = ACTION_FUNCTION(RGBLED_DECREASE_VAL),
+};
+
+void action_function(keyrecord_t *record, uint8_t id, uint8_t opt) {
+    switch (id) {
+        case RGBLED_TOGGLE:
+            if (record->event.pressed) {
+                rgblight_toggle();
+            }
+            break;
+        case RGBLED_STEP_MODE:
+            if (record->event.pressed) {
+                rgblight_step();
+            }
+            break;
+        case RGBLED_INCREASE_HUE:
+            if (record->event.pressed) {
+                rgblight_increase_hue();
+            }
+            break;
+        case RGBLED_DECREASE_HUE:
+            if (record->event.pressed) {
+                rgblight_decrease_hue();
+            }
+            break;
+        case RGBLED_INCREASE_SAT:
+            if (record->event.pressed) {
+                rgblight_increase_sat();
+            }
+            break;
+        case RGBLED_DECREASE_SAT:
+            if (record->event.pressed) {
+                rgblight_decrease_sat();
+            }
+            break;
+        case RGBLED_INCREASE_VAL:
+            if (record->event.pressed) {
+                rgblight_increase_val();
+            }
+            break;
+        case RGBLED_DECREASE_VAL:
+            if (record->event.pressed) {
+                rgblight_decrease_val();
+            }
+            break;
+    }
 };

keyboards/ps2avrGB/matrix.c

@@ -93,6 +93,8 @@ uint8_t matrix_scan(void) {
         }
     }
 
+    matrix_scan_user();
+
     return 1;
 }
 

keyboards/ps2avrGB/ps2avrGB.c

@@ -0,0 +1,50 @@
+/*
+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 "ps2avrGB.h"
+#include "rgblight.h"
+
+#include <avr/pgmspace.h>
+
+#include "action_layer.h"
+#include "i2c.h"
+#include "quantum.h"
+
+extern rgblight_config_t rgblight_config;
+
+void rgblight_set(void) {
+    uint8_t data[3 * RGBLED_NUM];
+    for (uint8_t i = 0; i < RGBLED_NUM; i++) {
+        if (rgblight_config.enable) {
+            data[3 * i] = led[i].g;
+            data[3 * i + 1] = led[i].r;
+            data[3 * i + 2] = led[i].b;
+        } else {
+            data[3 * i] = 0;
+            data[3 * i + 1] = 0;
+            data[3 * i + 2] = 0;
+        }
+    }
+
+    i2c_init();
+    i2c_send(0xb0, data, 48);
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+    rgblight_task();
+}

keyboards/ps2avrGB/rules.mk

@@ -20,7 +20,6 @@ PROTOCOL = VUSB
 # unsupported features for now
 NO_UART = yes
 NO_SUSPEND_POWER_DOWN = yes
-BACKLIGHT_ENABLE = no
 
 # processor frequency
 F_CPU = 12000000
@@ -31,13 +30,16 @@ MOUSEKEY_ENABLE = yes
 EXTRAKEY_ENABLE = yes
 CONSOLE_ENABLE = yes
 COMMAND_ENABLE = yes
+BACKLIGHT_ENABLE = no
+RGBLIGHT_ENABLE = yes
+DISABLE_WS2812 = yes
 
 OPT_DEFS = -DDEBUG_LEVEL=0
 OPT_DEFS += -DBOOTLOADER_SIZE=2048
 
 # custom matrix setup
 CUSTOM_MATRIX = yes
-SRC = matrix.c
+SRC = matrix.c i2c.c
 
 # programming options
 PROGRAM_CMD = ./keyboards/ps2avrGB/program $(TARGET).hex