Jack Humbert
8 years ago
commit
dc7d0c7b74
@ -0,0 +1,104 @@ |
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/*
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Copyright 2016 Luiz Ribeiro <luizribeiro@gmail.com> |
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|
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/ |
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#include <avr/io.h> |
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#include <util/twi.h> |
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#include "i2c.h" |
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void i2c_set_bitrate(uint16_t bitrate_khz) { |
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uint8_t bitrate_div = ((F_CPU / 1000l) / bitrate_khz); |
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if (bitrate_div >= 16) { |
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bitrate_div = (bitrate_div - 16) / 2; |
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} |
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TWBR = bitrate_div; |
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} |
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void i2c_init(void) { |
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// set pull-up resistors on I2C bus pins
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PORTC |= 0b11; |
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i2c_set_bitrate(400); |
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// enable TWI (two-wire interface)
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TWCR |= (1 << TWEN); |
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// enable TWI interrupt and slave address ACK
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TWCR |= (1 << TWIE); |
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TWCR |= (1 << TWEA); |
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} |
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uint8_t i2c_start(uint8_t address) { |
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// reset TWI control register
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TWCR = 0; |
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// begin transmission and wait for it to end
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TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN); |
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while (!(TWCR & (1<<TWINT))); |
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// check if the start condition was successfully transmitted
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if ((TWSR & 0xF8) != TW_START) { |
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return 1; |
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} |
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// transmit address and wait
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TWDR = address; |
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TWCR = (1<<TWINT) | (1<<TWEN); |
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while (!(TWCR & (1<<TWINT))); |
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// check if the device has acknowledged the READ / WRITE mode
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uint8_t twst = TW_STATUS & 0xF8; |
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if ((twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK)) { |
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return 1; |
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} |
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return 0; |
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} |
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void i2c_stop(void) { |
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TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO); |
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} |
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uint8_t i2c_write(uint8_t data) { |
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TWDR = data; |
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// transmit data and wait
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TWCR = (1<<TWINT) | (1<<TWEN); |
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while (!(TWCR & (1<<TWINT))); |
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if ((TWSR & 0xF8) != TW_MT_DATA_ACK) { |
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return 1; |
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} |
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return 0; |
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} |
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uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length) { |
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if (i2c_start(address)) { |
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return 1; |
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} |
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for (uint16_t i = 0; i < length; i++) { |
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if (i2c_write(data[i])) { |
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return 1; |
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} |
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} |
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i2c_stop(); |
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return 0; |
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} |
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@ -0,0 +1,25 @@ |
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/*
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Copyright 2016 Luiz Ribeiro <luizribeiro@gmail.com> |
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|
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/ |
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#ifndef __I2C_H__ |
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#define __I2C_H__ |
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void i2c_init(void); |
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void i2c_set_bitrate(uint16_t bitrate_khz); |
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uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length); |
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#endif |
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@ -0,0 +1,45 @@ |
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/*
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Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com> |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/ |
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#include "ps2avrGB.h" |
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#include "rgblight.h" |
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#include <avr/pgmspace.h> |
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#include "action_layer.h" |
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#include "i2c.h" |
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#include "quantum.h" |
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extern rgblight_config_t rgblight_config; |
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void rgblight_set(void) { |
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if (!rgblight_config.enable) { |
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for (uint8_t i = 0; i < RGBLED_NUM; i++) { |
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led[i].r = 0; |
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led[i].g = 0; |
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led[i].b = 0; |
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} |
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} |
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i2c_init(); |
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i2c_send(0xb0, (uint8_t*)led, 3 * RGBLED_NUM); |
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} |
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__attribute__ ((weak)) |
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void matrix_scan_user(void) { |
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rgblight_task(); |
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} |
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@ -0,0 +1,45 @@ |
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/*
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* light weight WS2812 lib include |
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* |
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* Version 2.3 - Nev 29th 2015 |
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* Author: Tim (cpldcpu@gmail.com) |
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* |
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* Please do not change this file! All configuration is handled in "ws2812_config.h" |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/ |
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#ifndef RGBLIGHT_TYPES |
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#define RGBLIGHT_TYPES |
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#include <avr/io.h> |
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#ifdef RGBW |
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#define LED_TYPE struct cRGBW |
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#else |
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#define LED_TYPE struct cRGB |
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#endif |
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/*
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* Structure of the LED array |
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* |
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* cRGB: RGB for WS2812S/B/C/D, SK6812, SK6812Mini, SK6812WWA, APA104, APA106 |
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* cRGBW: RGBW for SK6812RGBW |
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*/ |
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struct cRGB { uint8_t g; uint8_t r; uint8_t b; }; |
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struct cRGBW { uint8_t g; uint8_t r; uint8_t b; uint8_t w;}; |
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#endif |
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