[Keyboard] Refactor jj40 to current standards (#5574)
* Refactor jj40 in line with current ps2avrgb template * Disable bootmagic lite as it seems to not work on atmega32a/bootloadHID * Add backlight pwm bodge till #4324 lands * Increase planck keymap compatibilitypull/5589/head
zvecr
6 years ago
committed by
Drashna Jaelre
parent
9b393700d2
commit
91b18e263f
@ -1,213 +0,0 @@
|
||||
/**
|
||||
* Backlighting code for PS2AVRGB boards (ATMEGA32A)
|
||||
* Kenneth A. (github.com/krusli | krusli.me)
|
||||
*/
|
||||
|
||||
#include "backlight.h"
|
||||
#include "quantum.h"
|
||||
|
||||
#include <avr/pgmspace.h>
|
||||
#include <avr/interrupt.h>
|
||||
|
||||
#include "backlight_custom.h"
|
||||
#include "breathing_custom.h"
|
||||
|
||||
// DEBUG
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
|
||||
// Port D: digital pins of the AVR chipset
|
||||
#define NUMLOCK_PORT (1 << 0) // D0
|
||||
#define CAPSLOCK_PORT (1 << 1) // D1
|
||||
#define BACKLIGHT_PORT (1 << 4) // D4
|
||||
#define SCROLLLOCK_PORT (1 << 6) // D6
|
||||
|
||||
#define TIMER_CLK_DIV64 0x03 ///< Timer clocked at F_CPU/64
|
||||
#define TIMER1PRESCALE TIMER_CLK_DIV64 ///< timer 1 prescaler default
|
||||
|
||||
#define TIMER_PRESCALE_MASK 0x07 ///< Timer Prescaler Bit-Mask
|
||||
|
||||
#define PWM_MAX 0xFF
|
||||
#define TIMER_TOP 255 // 8 bit PWM
|
||||
|
||||
extern backlight_config_t backlight_config;
|
||||
|
||||
/**
|
||||
* References
|
||||
* Port Registers: https://www.arduino.cc/en/Reference/PortManipulation
|
||||
* TCCR1A: https://electronics.stackexchange.com/questions/92350/what-is-the-difference-between-tccr1a-and-tccr1b
|
||||
* Timers: http://www.avrbeginners.net/architecture/timers/timers.html
|
||||
* 16-bit timer setup: http://sculland.com/ATmega168/Interrupts-And-Timers/16-Bit-Timer-Setup/
|
||||
* PS2AVRGB firmware: https://github.com/showjean/ps2avrU/tree/master/firmware
|
||||
*/
|
||||
|
||||
// @Override
|
||||
// turn LEDs on and off depending on USB caps/num/scroll lock states.
|
||||
__attribute__ ((weak))
|
||||
void led_set_user(uint8_t usb_led) {
|
||||
if (usb_led & (1 << USB_LED_NUM_LOCK)) {
|
||||
// turn on
|
||||
DDRD |= NUMLOCK_PORT;
|
||||
PORTD |= NUMLOCK_PORT;
|
||||
} else {
|
||||
// turn off
|
||||
DDRD &= ~NUMLOCK_PORT;
|
||||
PORTD &= ~NUMLOCK_PORT;
|
||||
}
|
||||
|
||||
if (usb_led & (1 << USB_LED_CAPS_LOCK)) {
|
||||
DDRD |= CAPSLOCK_PORT;
|
||||
PORTD |= CAPSLOCK_PORT;
|
||||
} else {
|
||||
DDRD &= ~CAPSLOCK_PORT;
|
||||
PORTD &= ~CAPSLOCK_PORT;
|
||||
}
|
||||
|
||||
if (usb_led & (1 << USB_LED_SCROLL_LOCK)) {
|
||||
DDRD |= SCROLLLOCK_PORT;
|
||||
PORTD |= SCROLLLOCK_PORT;
|
||||
} else {
|
||||
DDRD &= ~SCROLLLOCK_PORT;
|
||||
PORTD &= ~SCROLLLOCK_PORT;
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef BACKLIGHT_ENABLE
|
||||
|
||||
// sets up Timer 1 for 8-bit PWM
|
||||
void timer1PWMSetup(void) { // NOTE ONLY CALL THIS ONCE
|
||||
// default 8 bit mode
|
||||
TCCR1A &= ~(1 << 1); // cbi(TCCR1A,PWM11); <- set PWM11 bit to HIGH
|
||||
TCCR1A |= (1 << 0); // sbi(TCCR1A,PWM10); <- set PWM10 bit to LOW
|
||||
|
||||
// clear output compare value A
|
||||
// outb(OCR1AH, 0);
|
||||
// outb(OCR1AL, 0);
|
||||
|
||||
// clear output comparator registers for B
|
||||
OCR1BH = 0; // outb(OCR1BH, 0);
|
||||
OCR1BL = 0; // outb(OCR1BL, 0);
|
||||
}
|
||||
|
||||
bool is_init = false;
|
||||
void timer1Init(void) {
|
||||
// timer1SetPrescaler(TIMER1PRESCALE)
|
||||
// set to DIV/64
|
||||
(TCCR1B) = ((TCCR1B) & ~TIMER_PRESCALE_MASK) | TIMER1PRESCALE;
|
||||
|
||||
// reset TCNT1
|
||||
TCNT1H = 0; // outb(TCNT1H, 0);
|
||||
TCNT1L = 0; // outb(TCNT1L, 0);
|
||||
|
||||
// TOIE1: Timer Overflow Interrupt Enable (Timer 1);
|
||||
TIMSK |= _BV(TOIE1); // sbi(TIMSK, TOIE1);
|
||||
|
||||
is_init = true;
|
||||
}
|
||||
|
||||
void timer1UnInit(void) {
|
||||
// set prescaler back to NONE
|
||||
(TCCR1B) = ((TCCR1B) & ~TIMER_PRESCALE_MASK) | 0x00; // TIMERRTC_CLK_STOP
|
||||
|
||||
// disable timer overflow interrupt
|
||||
TIMSK &= ~_BV(TOIE1); // overflow bit?
|
||||
|
||||
setPWM(0);
|
||||
|
||||
is_init = false;
|
||||
}
|
||||
|
||||
|
||||
// handle TCNT1 overflow
|
||||
//! Interrupt handler for tcnt1 overflow interrupt
|
||||
ISR(TIMER1_OVF_vect, ISR_NOBLOCK)
|
||||
{
|
||||
// sei();
|
||||
// handle breathing here
|
||||
#ifdef BACKLIGHT_BREATHING
|
||||
if (is_breathing()) {
|
||||
custom_breathing_handler();
|
||||
}
|
||||
#endif
|
||||
|
||||
// TODO call user defined function
|
||||
}
|
||||
|
||||
// enable timer 1 PWM
|
||||
// timer1PWMBOn()
|
||||
void timer1PWMBEnable(void) {
|
||||
// turn on channel B (OC1B) PWM output
|
||||
// set OC1B as non-inverted PWM
|
||||
TCCR1A |= _BV(COM1B1);
|
||||
TCCR1A &= ~_BV(COM1B0);
|
||||
}
|
||||
|
||||
// disable timer 1 PWM
|
||||
// timer1PWMBOff()
|
||||
void timer1PWMBDisable(void) {
|
||||
TCCR1A &= ~_BV(COM1B1);
|
||||
TCCR1A &= ~_BV(COM1B0);
|
||||
}
|
||||
|
||||
void enableBacklight(void) {
|
||||
DDRD |= BACKLIGHT_PORT; // set digital pin 4 as output
|
||||
PORTD |= BACKLIGHT_PORT; // set digital pin 4 to high
|
||||
}
|
||||
|
||||
void disableBacklight(void) {
|
||||
// DDRD &= ~BACKLIGHT_PORT; // set digital pin 4 as input
|
||||
PORTD &= ~BACKLIGHT_PORT; // set digital pin 4 to low
|
||||
}
|
||||
|
||||
void startPWM(void) {
|
||||
timer1Init();
|
||||
timer1PWMBEnable();
|
||||
enableBacklight();
|
||||
}
|
||||
|
||||
void stopPWM(void) {
|
||||
timer1UnInit();
|
||||
disableBacklight();
|
||||
timer1PWMBDisable();
|
||||
}
|
||||
|
||||
void b_led_init_ports(void) {
|
||||
/* turn backlight on/off depending on user preference */
|
||||
#if BACKLIGHT_ON_STATE == 0
|
||||
// DDRx register: sets the direction of Port D
|
||||
// DDRD &= ~BACKLIGHT_PORT; // set digital pin 4 as input
|
||||
PORTD &= ~BACKLIGHT_PORT; // set digital pin 4 to low
|
||||
#else
|
||||
DDRD |= BACKLIGHT_PORT; // set digital pin 4 as output
|
||||
PORTD |= BACKLIGHT_PORT; // set digital pin 4 to high
|
||||
#endif
|
||||
|
||||
timer1PWMSetup();
|
||||
startPWM();
|
||||
|
||||
#ifdef BACKLIGHT_BREATHING
|
||||
breathing_enable();
|
||||
#endif
|
||||
}
|
||||
|
||||
void b_led_set(uint8_t level) {
|
||||
if (level > BACKLIGHT_LEVELS) {
|
||||
level = BACKLIGHT_LEVELS;
|
||||
}
|
||||
|
||||
setPWM((int)(TIMER_TOP * (float) level / BACKLIGHT_LEVELS));
|
||||
}
|
||||
|
||||
// called every matrix scan
|
||||
void b_led_task(void) {
|
||||
// do nothing for now
|
||||
}
|
||||
|
||||
void setPWM(uint16_t xValue) {
|
||||
if (xValue > TIMER_TOP) {
|
||||
xValue = TIMER_TOP;
|
||||
}
|
||||
OCR1B = xValue; // timer1PWMBSet(xValue);
|
||||
}
|
||||
|
||||
#endif // BACKLIGHT_ENABLE
|
||||
@ -1,15 +0,0 @@
|
||||
/**
|
||||
* Backlighting code for PS2AVRGB boards (ATMEGA32A)
|
||||
* Kenneth A. (github.com/krusli | krusli.me)
|
||||
*/
|
||||
|
||||
#ifndef BACKLIGHT_CUSTOM_H
|
||||
#define BACKLIGHT_CUSTOM_H
|
||||
|
||||
#include <avr/pgmspace.h>
|
||||
void b_led_init_ports(void);
|
||||
void b_led_set(uint8_t level);
|
||||
void b_led_task(void);
|
||||
void setPWM(uint16_t xValue);
|
||||
|
||||
#endif // BACKLIGHT_CUSTOM_H
|
||||
@ -1,140 +0,0 @@
|
||||
/**
|
||||
* Breathing effect code for PS2AVRGB boards (ATMEGA32A)
|
||||
* Works in conjunction with `backlight.c`.
|
||||
*
|
||||
* Code adapted from `quantum.c` to register with the existing TIMER1 overflow
|
||||
* handler in `backlight.c` instead of setting up its own timer.
|
||||
* Kenneth A. (github.com/krusli | krusli.me)
|
||||
*/
|
||||
|
||||
#ifdef BACKLIGHT_ENABLE
|
||||
#ifdef BACKLIGHT_BREATHING
|
||||
|
||||
#include "backlight_custom.h"
|
||||
|
||||
#ifndef BREATHING_PERIOD
|
||||
#define BREATHING_PERIOD 6
|
||||
#endif
|
||||
|
||||
#define breathing_min() do {breathing_counter = 0;} while (0)
|
||||
#define breathing_max() do {breathing_counter = breathing_period * 244 / 2;} while (0)
|
||||
|
||||
// TODO make this share code with quantum.c
|
||||
|
||||
#define BREATHING_NO_HALT 0
|
||||
#define BREATHING_HALT_OFF 1
|
||||
#define BREATHING_HALT_ON 2
|
||||
#define BREATHING_STEPS 128
|
||||
|
||||
static uint8_t breathing_period = BREATHING_PERIOD;
|
||||
static uint8_t breathing_halt = BREATHING_NO_HALT;
|
||||
static uint16_t breathing_counter = 0;
|
||||
|
||||
static bool breathing = false;
|
||||
|
||||
bool is_breathing(void) {
|
||||
return breathing;
|
||||
}
|
||||
|
||||
// See http://jared.geek.nz/2013/feb/linear-led-pwm
|
||||
static uint16_t cie_lightness(uint16_t v) {
|
||||
if (v <= 5243) // if below 8% of max
|
||||
return v / 9; // same as dividing by 900%
|
||||
else {
|
||||
uint32_t y = (((uint32_t) v + 10486) << 8) / (10486 + 0xFFFFUL); // add 16% of max and compare
|
||||
// to get a useful result with integer division, we shift left in the expression above
|
||||
// and revert what we've done again after squaring.
|
||||
y = y * y * y >> 8;
|
||||
if (y > 0xFFFFUL) // prevent overflow
|
||||
return 0xFFFFU;
|
||||
else
|
||||
return (uint16_t) y;
|
||||
}
|
||||
}
|
||||
|
||||
void breathing_enable(void) {
|
||||
breathing = true;
|
||||
breathing_counter = 0;
|
||||
breathing_halt = BREATHING_NO_HALT;
|
||||
// interrupt already registered
|
||||
}
|
||||
|
||||
void breathing_pulse(void) {
|
||||
if (get_backlight_level() == 0)
|
||||
breathing_min();
|
||||
else
|
||||
breathing_max();
|
||||
breathing_halt = BREATHING_HALT_ON;
|
||||
// breathing_interrupt_enable();
|
||||
breathing = true;
|
||||
}
|
||||
|
||||
void breathing_disable(void) {
|
||||
breathing = false;
|
||||
// backlight_set(get_backlight_level());
|
||||
b_led_set(get_backlight_level()); // custom implementation of backlight_set()
|
||||
}
|
||||
|
||||
void breathing_self_disable(void)
|
||||
{
|
||||
if (get_backlight_level() == 0)
|
||||
breathing_halt = BREATHING_HALT_OFF;
|
||||
else
|
||||
breathing_halt = BREATHING_HALT_ON;
|
||||
}
|
||||
|
||||
void breathing_toggle(void) {
|
||||
if (is_breathing())
|
||||
breathing_disable();
|
||||
else
|
||||
breathing_enable();
|
||||
}
|
||||
|
||||
void breathing_period_set(uint8_t value)
|
||||
{
|
||||
if (!value)
|
||||
value = 1;
|
||||
breathing_period = value;
|
||||
}
|
||||
|
||||
void breathing_period_default(void) {
|
||||
breathing_period_set(BREATHING_PERIOD);
|
||||
}
|
||||
|
||||
void breathing_period_inc(void)
|
||||
{
|
||||
breathing_period_set(breathing_period+1);
|
||||
}
|
||||
|
||||
void breathing_period_dec(void)
|
||||
{
|
||||
breathing_period_set(breathing_period-1);
|
||||
}
|
||||
|
||||
/* To generate breathing curve in python:
|
||||
* from math import sin, pi; [int(sin(x/128.0*pi)**4*255) for x in range(128)]
|
||||
*/
|
||||
static const uint8_t breathing_table[BREATHING_STEPS] PROGMEM = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 28, 32, 36, 41, 46, 51, 57, 63, 70, 76, 83, 91, 98, 106, 113, 121, 129, 138, 146, 154, 162, 170, 178, 185, 193, 200, 207, 213, 220, 225, 231, 235, 240, 244, 247, 250, 252, 253, 254, 255, 254, 253, 252, 250, 247, 244, 240, 235, 231, 225, 220, 213, 207, 200, 193, 185, 178, 170, 162, 154, 146, 138, 129, 121, 113, 106, 98, 91, 83, 76, 70, 63, 57, 51, 46, 41, 36, 32, 28, 24, 20, 17, 15, 12, 10, 8, 6, 5, 4, 3, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
|
||||
|
||||
// Use this before the cie_lightness function.
|
||||
static inline uint16_t scale_backlight(uint16_t v) {
|
||||
return v / BACKLIGHT_LEVELS * get_backlight_level();
|
||||
}
|
||||
|
||||
void custom_breathing_handler(void) {
|
||||
uint16_t interval = (uint16_t) breathing_period * 244 / BREATHING_STEPS;
|
||||
// resetting after one period to prevent ugly reset at overflow.
|
||||
breathing_counter = (breathing_counter + 1) % (breathing_period * 244);
|
||||
uint8_t index = breathing_counter / interval % BREATHING_STEPS;
|
||||
|
||||
if (((breathing_halt == BREATHING_HALT_ON) && (index == BREATHING_STEPS / 2)) ||
|
||||
((breathing_halt == BREATHING_HALT_OFF) && (index == BREATHING_STEPS - 1)))
|
||||
{
|
||||
// breathing_interrupt_disable();
|
||||
}
|
||||
|
||||
setPWM(cie_lightness(scale_backlight((uint16_t) pgm_read_byte(&breathing_table[index]) * 0x0101U)));
|
||||
}
|
||||
|
||||
#endif // BACKLIGHT_BREATHING
|
||||
#endif // BACKLIGHT_ENABLE
|
||||
@ -1,51 +1,55 @@
|
||||
/*
|
||||
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 "config_common.h"
|
||||
#pragma once
|
||||
|
||||
#ifndef CONFIG_H
|
||||
#define CONFIG_H
|
||||
#include "config_common.h"
|
||||
|
||||
#define VENDOR_ID 0x20A0
|
||||
#define PRODUCT_ID 0x422D
|
||||
// TODO: share these strings with usbconfig.h
|
||||
// Edit usbconfig.h to change these.
|
||||
#define MANUFACTURER winkeyless.kr
|
||||
#define MANUFACTURER Kprepublic
|
||||
#define PRODUCT jj40
|
||||
|
||||
/* matrix size */
|
||||
#define MATRIX_ROWS 8
|
||||
#define MATRIX_COLS 15
|
||||
#define MATRIX_ROWS 4
|
||||
#define MATRIX_COLS 12
|
||||
#define MATRIX_ROW_PINS { B0, B1, B3, B4 }
|
||||
#define MATRIX_COL_PINS { C4, C5, C6, C7, A4, A5, A6, A7, A3, A2, A1, A0 }
|
||||
|
||||
/* COL2ROW or ROW2COL */
|
||||
#define DIODE_DIRECTION COL2ROW
|
||||
|
||||
#define BACKLIGHT_PIN D4
|
||||
#define BACKLIGHT_LEVELS 12
|
||||
// #define BACKLIGHT_BREATHING // works, but BL_TOGG might not work
|
||||
|
||||
#define TAPPING_TOGGLE 3
|
||||
|
||||
#define NO_UART 1
|
||||
// #define BACKLIGHT_BREATHING // Requires #4324 to enable hardware pwm for atmega32a
|
||||
|
||||
/* RGB underglow */
|
||||
// The RGB_DI_PIN value seems to be shared between all PS2AVRGB boards.
|
||||
// The same pin is used on the JJ40, at least.
|
||||
// NOTE: for PS2AVRGB boards, underglow commands are sent via I2C to 0xB0.
|
||||
#define RGBLED_NUM 5
|
||||
#define RGB_DI_PIN E2 // NOTE: for PS2AVRGB boards, underglow commands are sent via I2C to 0xB0.
|
||||
#define RGBLIGHT_ANIMATIONS
|
||||
|
||||
#endif
|
||||
/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
|
||||
#define DEBOUNCING_DELAY 5
|
||||
|
||||
#define NO_UART 1
|
||||
|
||||
/* key combination for magic key command */
|
||||
/* defined by default; to change, uncomment and set to the combination you want */
|
||||
// #define IS_COMMAND() (get_mods() == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)))
|
||||
|
||||
/* Bootmagic Lite key configuration */
|
||||
// #define BOOTMAGIC_LITE_ROW 0
|
||||
// #define BOOTMAGIC_LITE_COLUMN 0
|
||||
|
||||
@ -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;
|
||||
}
|
||||
@ -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
|
||||
@ -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) {
|
||||
}
|
||||
Loading…
Reference in new issue