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Moved VFD buttons to separate module

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This commit is contained in:
Gregor Riepl 2021-04-21 23:22:11 +02:00
parent ec2e7ae044
commit c5b29bdee2
4 changed files with 34 additions and 23 deletions
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2
display/firmware/Makefile
View file

@ -1,7 +1,7 @@
PRG = display
PROJ_ROOT = ../..
AVRCANLIB_PATH = $(PROJ_ROOT)/avr-can-lib
OBJ = main.o display.o \
OBJ = main.o display.o button.o \
$(AVRCANLIB_PATH)/src/at90can_buffer.o \
$(AVRCANLIB_PATH)/src/at90can.o \
$(AVRCANLIB_PATH)/src/at90can_disable_dyn_filter.o \

25
display/firmware/button.c Normal file
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@ -0,0 +1,25 @@
#include <avr/io.h>
#include "button.h"
void button_init() {
// PB2, PB3, PB4, PB5, PB6, PC0, PC1, PC4: input, no pullup (button0..7)
PORTB &= ~(_BV(PB2) | _BV(PB3) | _BV(PB4) | _BV(PB5) | _BV(PB6));
DDRB &= ~(_BV(PB2) | _BV(PB3) | _BV(PB4) | _BV(PB5) | _BV(PB6));
PORTC &= ~(_BV(PC0) | _BV(PC1) | _BV(PC4));
DDRC &= ~(_BV(PC0) | _BV(PC1) | _BV(PC4));
}
uint8_t button_get() {
uint8_t pinb = PINB;
uint8_t pinc = PINC;
uint8_t buttons = 0;
if (pinb & _BV(PB2)) buttons |= _BV(0);
if (pinb & _BV(PB3)) buttons |= _BV(1);
if (pinb & _BV(PB4)) buttons |= _BV(2);
if (pinb & _BV(PB5)) buttons |= _BV(3);
if (pinb & _BV(PB6)) buttons |= _BV(4);
if (pinc & _BV(PC0)) buttons |= _BV(5);
if (pinc & _BV(PC1)) buttons |= _BV(6);
if (pinc & _BV(PC4)) buttons |= _BV(7);
return buttons;
}

5
display/firmware/button.h Normal file
View file

@ -0,0 +1,5 @@
#include <stdint.h>
void button_init();
uint8_t button_get();

25
display/firmware/main.c
View file

@ -6,11 +6,11 @@
#include <can.h>
#include <messages.h>
#include "display.h"
#include "button.h"
static bool report_change = false;
static void init();
static uint8_t get_buttons();
static void send_status();
static void loop();
@ -40,11 +40,7 @@ static void loop();
static void init() {
// initialize buttons
// PB2, PB3, PB4, PB5, PB6, PC0, PC1, PC4: input, no pullup (button0..7)
PORTB &= ~(_BV(PB2) | _BV(PB3) | _BV(PB4) | _BV(PB5) | _BV(PB6));
DDRB &= ~(_BV(PB2) | _BV(PB3) | _BV(PB4) | _BV(PB5) | _BV(PB6));
PORTC &= ~(_BV(PC0) | _BV(PC1) | _BV(PC4));
DDRC &= ~(_BV(PC0) | _BV(PC1) | _BV(PC4));
button_init();
// initialize VFD
display_init();
@ -79,23 +75,8 @@ static void init() {
sei();
}
static uint8_t get_buttons() {
uint8_t pinb = PINB;
uint8_t pinc = PINC;
uint8_t buttons = 0;
if (pinb & _BV(PB2)) buttons |= _BV(0);
if (pinb & _BV(PB3)) buttons |= _BV(1);
if (pinb & _BV(PB4)) buttons |= _BV(2);
if (pinb & _BV(PB5)) buttons |= _BV(3);
if (pinb & _BV(PB6)) buttons |= _BV(4);
if (pinc & _BV(PC0)) buttons |= _BV(5);
if (pinc & _BV(PC1)) buttons |= _BV(6);
if (pinc & _BV(PC4)) buttons |= _BV(7);
return buttons;
}
static void send_status() {
uint8_t status = get_buttons();
uint8_t status = button_get();
if (can_check_free_buffer()) {
can_t msg = {