[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 compatibilityplanck_ez_wdg
zvecr
6 years ago
committed by
Drashna Jaelre
parent
9b393700d2
commit
91b18e263f
@ -1,213 +0,0 @@ |
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/**
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* Backlighting code for PS2AVRGB boards (ATMEGA32A) |
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* Kenneth A. (github.com/krusli | krusli.me) |
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*/ |
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#include "backlight.h" |
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#include "quantum.h" |
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#include <avr/pgmspace.h> |
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#include <avr/interrupt.h> |
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#include "backlight_custom.h" |
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#include "breathing_custom.h" |
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// DEBUG
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#include <stdlib.h> |
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#include <stdio.h> |
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// Port D: digital pins of the AVR chipset
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#define NUMLOCK_PORT (1 << 0) // D0
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#define CAPSLOCK_PORT (1 << 1) // D1
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#define BACKLIGHT_PORT (1 << 4) // D4
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#define SCROLLLOCK_PORT (1 << 6) // D6
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#define TIMER_CLK_DIV64 0x03 ///< Timer clocked at F_CPU/64
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#define TIMER1PRESCALE TIMER_CLK_DIV64 ///< timer 1 prescaler default
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#define TIMER_PRESCALE_MASK 0x07 ///< Timer Prescaler Bit-Mask
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#define PWM_MAX 0xFF |
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#define TIMER_TOP 255 // 8 bit PWM
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extern backlight_config_t backlight_config; |
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/**
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* References |
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* Port Registers: https://www.arduino.cc/en/Reference/PortManipulation
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* TCCR1A: https://electronics.stackexchange.com/questions/92350/what-is-the-difference-between-tccr1a-and-tccr1b
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* Timers: http://www.avrbeginners.net/architecture/timers/timers.html
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* 16-bit timer setup: http://sculland.com/ATmega168/Interrupts-And-Timers/16-Bit-Timer-Setup/
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* PS2AVRGB firmware: https://github.com/showjean/ps2avrU/tree/master/firmware
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*/ |
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// @Override
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// turn LEDs on and off depending on USB caps/num/scroll lock states.
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__attribute__ ((weak)) |
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void led_set_user(uint8_t usb_led) { |
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if (usb_led & (1 << USB_LED_NUM_LOCK)) { |
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// turn on
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DDRD |= NUMLOCK_PORT; |
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PORTD |= NUMLOCK_PORT; |
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} else { |
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// turn off
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DDRD &= ~NUMLOCK_PORT; |
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PORTD &= ~NUMLOCK_PORT; |
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} |
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if (usb_led & (1 << USB_LED_CAPS_LOCK)) { |
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DDRD |= CAPSLOCK_PORT; |
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PORTD |= CAPSLOCK_PORT; |
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} else { |
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DDRD &= ~CAPSLOCK_PORT; |
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PORTD &= ~CAPSLOCK_PORT; |
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} |
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if (usb_led & (1 << USB_LED_SCROLL_LOCK)) { |
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DDRD |= SCROLLLOCK_PORT; |
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PORTD |= SCROLLLOCK_PORT; |
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} else { |
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DDRD &= ~SCROLLLOCK_PORT; |
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PORTD &= ~SCROLLLOCK_PORT; |
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} |
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} |
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#ifdef BACKLIGHT_ENABLE |
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// sets up Timer 1 for 8-bit PWM
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void timer1PWMSetup(void) { // NOTE ONLY CALL THIS ONCE
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// default 8 bit mode
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TCCR1A &= ~(1 << 1); // cbi(TCCR1A,PWM11); <- set PWM11 bit to HIGH
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TCCR1A |= (1 << 0); // sbi(TCCR1A,PWM10); <- set PWM10 bit to LOW
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// clear output compare value A
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// outb(OCR1AH, 0);
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// outb(OCR1AL, 0);
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// clear output comparator registers for B
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OCR1BH = 0; // outb(OCR1BH, 0);
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OCR1BL = 0; // outb(OCR1BL, 0);
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} |
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bool is_init = false; |
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void timer1Init(void) { |
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// timer1SetPrescaler(TIMER1PRESCALE)
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// set to DIV/64
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(TCCR1B) = ((TCCR1B) & ~TIMER_PRESCALE_MASK) | TIMER1PRESCALE; |
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// reset TCNT1
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TCNT1H = 0; // outb(TCNT1H, 0);
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TCNT1L = 0; // outb(TCNT1L, 0);
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// TOIE1: Timer Overflow Interrupt Enable (Timer 1);
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TIMSK |= _BV(TOIE1); // sbi(TIMSK, TOIE1);
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is_init = true; |
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} |
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void timer1UnInit(void) { |
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// set prescaler back to NONE
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(TCCR1B) = ((TCCR1B) & ~TIMER_PRESCALE_MASK) | 0x00; // TIMERRTC_CLK_STOP
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// disable timer overflow interrupt
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TIMSK &= ~_BV(TOIE1); // overflow bit?
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setPWM(0); |
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is_init = false; |
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} |
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// handle TCNT1 overflow
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//! Interrupt handler for tcnt1 overflow interrupt
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ISR(TIMER1_OVF_vect, ISR_NOBLOCK) |
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{ |
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// sei();
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// handle breathing here
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#ifdef BACKLIGHT_BREATHING |
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if (is_breathing()) { |
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custom_breathing_handler(); |
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} |
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#endif |
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// TODO call user defined function
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} |
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// enable timer 1 PWM
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// timer1PWMBOn()
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void timer1PWMBEnable(void) { |
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// turn on channel B (OC1B) PWM output
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// set OC1B as non-inverted PWM
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TCCR1A |= _BV(COM1B1); |
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TCCR1A &= ~_BV(COM1B0); |
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} |
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// disable timer 1 PWM
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// timer1PWMBOff()
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void timer1PWMBDisable(void) { |
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TCCR1A &= ~_BV(COM1B1); |
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TCCR1A &= ~_BV(COM1B0); |
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} |
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void enableBacklight(void) { |
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DDRD |= BACKLIGHT_PORT; // set digital pin 4 as output
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PORTD |= BACKLIGHT_PORT; // set digital pin 4 to high
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} |
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void disableBacklight(void) { |
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// DDRD &= ~BACKLIGHT_PORT; // set digital pin 4 as input
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PORTD &= ~BACKLIGHT_PORT; // set digital pin 4 to low
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} |
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void startPWM(void) { |
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timer1Init(); |
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timer1PWMBEnable(); |
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enableBacklight(); |
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} |
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void stopPWM(void) { |
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timer1UnInit(); |
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disableBacklight(); |
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timer1PWMBDisable(); |
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} |
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void b_led_init_ports(void) { |
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/* turn backlight on/off depending on user preference */ |
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#if BACKLIGHT_ON_STATE == 0 |
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// DDRx register: sets the direction of Port D
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// DDRD &= ~BACKLIGHT_PORT; // set digital pin 4 as input
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PORTD &= ~BACKLIGHT_PORT; // set digital pin 4 to low
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#else |
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DDRD |= BACKLIGHT_PORT; // set digital pin 4 as output
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PORTD |= BACKLIGHT_PORT; // set digital pin 4 to high
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#endif |
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timer1PWMSetup(); |
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startPWM(); |
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#ifdef BACKLIGHT_BREATHING |
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breathing_enable(); |
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#endif |
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} |
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void b_led_set(uint8_t level) { |
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if (level > BACKLIGHT_LEVELS) { |
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level = BACKLIGHT_LEVELS; |
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} |
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setPWM((int)(TIMER_TOP * (float) level / BACKLIGHT_LEVELS)); |
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} |
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// called every matrix scan
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void b_led_task(void) { |
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// do nothing for now
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} |
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void setPWM(uint16_t xValue) { |
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if (xValue > TIMER_TOP) { |
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xValue = TIMER_TOP; |
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} |
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OCR1B = xValue; // timer1PWMBSet(xValue);
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} |
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#endif // BACKLIGHT_ENABLE
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@ -1,15 +0,0 @@ |
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/**
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* Backlighting code for PS2AVRGB boards (ATMEGA32A) |
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* Kenneth A. (github.com/krusli | krusli.me) |
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*/ |
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#ifndef BACKLIGHT_CUSTOM_H |
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#define BACKLIGHT_CUSTOM_H |
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#include <avr/pgmspace.h> |
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void b_led_init_ports(void); |
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void b_led_set(uint8_t level); |
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void b_led_task(void); |
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void setPWM(uint16_t xValue); |
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#endif // BACKLIGHT_CUSTOM_H
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@ -1,140 +0,0 @@ |
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/**
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* Breathing effect code for PS2AVRGB boards (ATMEGA32A) |
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* Works in conjunction with `backlight.c`. |
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* |
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* Code adapted from `quantum.c` to register with the existing TIMER1 overflow |
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* handler in `backlight.c` instead of setting up its own timer. |
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* Kenneth A. (github.com/krusli | krusli.me) |
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*/ |
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#ifdef BACKLIGHT_ENABLE |
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#ifdef BACKLIGHT_BREATHING |
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#include "backlight_custom.h" |
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#ifndef BREATHING_PERIOD |
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#define BREATHING_PERIOD 6 |
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#endif |
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#define breathing_min() do {breathing_counter = 0;} while (0) |
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#define breathing_max() do {breathing_counter = breathing_period * 244 / 2;} while (0) |
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// TODO make this share code with quantum.c
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#define BREATHING_NO_HALT 0 |
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#define BREATHING_HALT_OFF 1 |
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#define BREATHING_HALT_ON 2 |
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#define BREATHING_STEPS 128 |
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static uint8_t breathing_period = BREATHING_PERIOD; |
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static uint8_t breathing_halt = BREATHING_NO_HALT; |
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static uint16_t breathing_counter = 0; |
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static bool breathing = false; |
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bool is_breathing(void) { |
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return breathing; |
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} |
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// See http://jared.geek.nz/2013/feb/linear-led-pwm
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static uint16_t cie_lightness(uint16_t v) { |
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if (v <= 5243) // if below 8% of max
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return v / 9; // same as dividing by 900%
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else { |
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uint32_t y = (((uint32_t) v + 10486) << 8) / (10486 + 0xFFFFUL); // add 16% of max and compare
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// to get a useful result with integer division, we shift left in the expression above
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// and revert what we've done again after squaring.
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y = y * y * y >> 8; |
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if (y > 0xFFFFUL) // prevent overflow
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return 0xFFFFU; |
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else |
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return (uint16_t) y; |
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} |
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} |
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void breathing_enable(void) { |
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breathing = true; |
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breathing_counter = 0; |
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breathing_halt = BREATHING_NO_HALT; |
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// interrupt already registered
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} |
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void breathing_pulse(void) { |
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if (get_backlight_level() == 0) |
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breathing_min(); |
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else |
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breathing_max(); |
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breathing_halt = BREATHING_HALT_ON; |
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// breathing_interrupt_enable();
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breathing = true; |
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} |
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void breathing_disable(void) { |
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breathing = false; |
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// backlight_set(get_backlight_level());
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b_led_set(get_backlight_level()); // custom implementation of backlight_set()
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} |
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void breathing_self_disable(void) |
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{ |
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if (get_backlight_level() == 0) |
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breathing_halt = BREATHING_HALT_OFF; |
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else |
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breathing_halt = BREATHING_HALT_ON; |
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} |
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void breathing_toggle(void) { |
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if (is_breathing()) |
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breathing_disable(); |
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else |
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breathing_enable(); |
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} |
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void breathing_period_set(uint8_t value) |
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{ |
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if (!value) |
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value = 1; |
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breathing_period = value; |
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} |
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void breathing_period_default(void) { |
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breathing_period_set(BREATHING_PERIOD); |
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} |
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void breathing_period_inc(void) |
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{ |
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breathing_period_set(breathing_period+1); |
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} |
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void breathing_period_dec(void) |
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{ |
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breathing_period_set(breathing_period-1); |
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} |
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/* To generate breathing curve in python:
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* from math import sin, pi; [int(sin(x/128.0*pi)**4*255) for x in range(128)] |
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*/ |
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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}; |
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// Use this before the cie_lightness function.
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static inline uint16_t scale_backlight(uint16_t v) { |
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return v / BACKLIGHT_LEVELS * get_backlight_level(); |
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} |
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void custom_breathing_handler(void) { |
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uint16_t interval = (uint16_t) breathing_period * 244 / BREATHING_STEPS; |
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// resetting after one period to prevent ugly reset at overflow.
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breathing_counter = (breathing_counter + 1) % (breathing_period * 244); |
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uint8_t index = breathing_counter / interval % BREATHING_STEPS; |
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if (((breathing_halt == BREATHING_HALT_ON) && (index == BREATHING_STEPS / 2)) || |
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((breathing_halt == BREATHING_HALT_OFF) && (index == BREATHING_STEPS - 1))) |
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{ |
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// breathing_interrupt_disable();
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} |
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setPWM(cie_lightness(scale_backlight((uint16_t) pgm_read_byte(&breathing_table[index]) * 0x0101U))); |
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} |
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#endif // BACKLIGHT_BREATHING
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#endif // BACKLIGHT_ENABLE
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@ -1,51 +1,55 @@ |
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/*
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/*
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Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com> |
Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com> |
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This program is free software: you can redistribute it and/or modify |
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 |
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 |
the Free Software Foundation, either version 2 of the License, or |
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(at your option) any later version. |
(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/ |
*/ |
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#include "config_common.h" |
#pragma once |
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|
|
||||||
#ifndef CONFIG_H |
#include "config_common.h" |
||||||
#define CONFIG_H |
|
||||||
|
|
||||||
#define VENDOR_ID 0x20A0 |
#define VENDOR_ID 0x20A0 |
||||||
#define PRODUCT_ID 0x422D |
#define PRODUCT_ID 0x422D |
||||||
// TODO: share these strings with usbconfig.h
|
// TODO: share these strings with usbconfig.h
|
||||||
// Edit usbconfig.h to change these.
|
// Edit usbconfig.h to change these.
|
||||||
#define MANUFACTURER winkeyless.kr |
#define MANUFACTURER Kprepublic |
||||||
#define PRODUCT jj40 |
#define PRODUCT jj40 |
||||||
|
|
||||||
/* matrix size */ |
/* matrix size */ |
||||||
#define MATRIX_ROWS 8 |
#define MATRIX_ROWS 4 |
||||||
#define MATRIX_COLS 15 |
#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 */ |
/* COL2ROW or ROW2COL */ |
||||||
#define DIODE_DIRECTION COL2ROW |
#define DIODE_DIRECTION COL2ROW |
||||||
|
|
||||||
|
#define BACKLIGHT_PIN D4 |
||||||
#define BACKLIGHT_LEVELS 12 |
#define BACKLIGHT_LEVELS 12 |
||||||
// #define BACKLIGHT_BREATHING // works, but BL_TOGG might not work
|
// #define BACKLIGHT_BREATHING // Requires #4324 to enable hardware pwm for atmega32a
|
||||||
|
|
||||||
#define TAPPING_TOGGLE 3 |
|
||||||
|
|
||||||
#define NO_UART 1 |
|
||||||
|
|
||||||
/* RGB underglow */ |
/* RGB underglow */ |
||||||
// The RGB_DI_PIN value seems to be shared between all PS2AVRGB boards.
|
// NOTE: for PS2AVRGB boards, underglow commands are sent via I2C to 0xB0.
|
||||||
// The same pin is used on the JJ40, at least.
|
|
||||||
#define RGBLED_NUM 5 |
#define RGBLED_NUM 5 |
||||||
#define RGB_DI_PIN E2 // NOTE: for PS2AVRGB boards, underglow commands are sent via I2C to 0xB0.
|
|
||||||
#define RGBLIGHT_ANIMATIONS |
#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