summaryrefslogtreecommitdiffstats
path: root/lock/server.c
diff options
context:
space:
mode:
authorSadeep Madurange <sadeep@asciimx.com>2025-09-07 17:04:34 +0800
committerSadeep Madurange <sadeep@asciimx.com>2025-09-07 17:04:34 +0800
commit276856de6c63bbbf3e56cc08dcca00ba10080b7e (patch)
treec68484bc312cc3a8abcea4fa9f4948a6f1f65cc6 /lock/server.c
parentf4b0b734a595919cf451ab9448b06274c8e609a4 (diff)
downloadsmart-home-276856de6c63bbbf3e56cc08dcca00ba10080b7e.tar.gz
Door lock with MOSFETs and and without RFM.HEADmaster
Diffstat (limited to 'lock/server.c')
-rw-r--r--lock/server.c191
1 files changed, 0 insertions, 191 deletions
diff --git a/lock/server.c b/lock/server.c
deleted file mode 100644
index 6d51c00..0000000
--- a/lock/server.c
+++ /dev/null
@@ -1,191 +0,0 @@
-/* Lock back, connected to the servo */
-
-#include <stdint.h>
-#include <string.h>
-
-#include <avr/wdt.h>
-#include <avr/sleep.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-
-#include "nrfm.h"
-#include "util.h"
-
-#define PWM_MIN 500
-#define PWM_MID 1500
-#define PWM_MAX 2500
-#define PWM_TOP 20000
-
-#define SERVO_PIN PB1
-#define LOCK_PIN PD3
-#define UNLOCK_PIN PD4
-
-#define RX_IRQ_PIN PC0
-#define RX_DDR DDRC
-#define RX_PIN PINC
-#define RX_ICR PCICR
-#define RX_IE PCIE1
-#define RX_INT PCINT8
-#define RX_MSK PCMSK1
-#define RX_INTVEC PCINT1_vect
-
-#define VCC_MIN 4000
-
-static char tab[] = {
- '0', '8', '3', '6', 'a', 'Z', '$', '4', 'v', 'R', '@',
- 'E', '1', 'o', '#', ')', '2', '5', 'q', ';', '.', 'I',
- 'c', '7', '9', '*', 'L', 'V', '&', 'k', 'K', '!', 'm',
- 'N', '(', 'O', 'Q', 'A', '>', 'T', 't', '?', 'S', 'h',
- 'w', '/', 'n', 'W', 'l', 'M', 'e', 'H', 'j', 'g', '[',
- 'P', 'f', ':', 'B', ']', 'Y', '^', 'F', '%', 'C', 'x'
-};
-
-static volatile uint8_t rxd = 0;
-static uint16_t tablen = sizeof(tab) / sizeof(tab[0]);
-
-static inline void keygen(char *buf, uint8_t n)
-{
- int i, imax;
- uint8_t sreg;
- uint16_t seed;
-
- sreg = SREG;
- cli();
- seed = TCNT1;
- SREG = sreg;
-
- for (i = 0, imax = n - 1; i < imax; i++, seed++)
- buf[i] = tab[(seed % tablen)];
- buf[imax] = '\0';
-}
-
-static inline void keydel(char *buf, uint8_t n)
-{
- int i;
-
- for (i = 0; i < n; i++)
- buf[i] = 0;
-}
-
-static inline void init_wdt(void)
-{
- cli();
- wdt_reset();
-
- WDTCSR |= (1 << WDCE) | ( 1 << WDE);
- WDTCSR = (1 << WDE) | (1 << WDP1); /* reset after 64ms */
-}
-
-static inline void init_rx(void)
-{
- RX_DDR &= ~(1 << RX_IRQ_PIN);
- RX_ICR |= (1 << RX_IE);
- RX_MSK |= (1 << RX_INT);
-}
-
-static inline void init_btns(void)
-{
- DDRD &= ~((1 << LOCK_PIN) | (1 << UNLOCK_PIN));
- PORTD |= ((1 << LOCK_PIN) | (1 << UNLOCK_PIN));
-
- EICRA = 0b00000000;
- EIMSK = (1 << INT1);
-
- PCICR |= (1 << PCIE2);
- PCMSK2 |= (1 << PCINT20);
-}
-
-static inline void init_servo(void)
-{
- ICR1 = PWM_TOP;
- TCCR1A |= (1 << WGM11) | (1 << COM1A1);
- TCCR1B |= (1 << WGM13) | (1 << CS11);
-
- DDRB |= (1 << SERVO_PIN);
-}
-
-static inline void lock(void)
-{
- OCR1A = PWM_MID;
- _delay_ms(100);
- OCR1A = PWM_TOP;
-}
-
-static inline void unlock(void)
-{
- OCR1A = PWM_MAX - 50;
- _delay_ms(100);
- OCR1A = PWM_TOP;
-}
-
-int main(void)
-{
- uint8_t rxaddr[ADDRLEN] = { 194, 178, 83 };
- uint8_t txaddr[ADDRLEN] = { 194, 178, 82 };
-
- char buf[WDLEN], key[WDLEN], msg[WDLEN];
-
- init_wdt();
- init_rx();
- init_btns();
- init_servo();
-
- led_init();
- radio_init(rxaddr);
-
- sei();
- radio_listen();
-
- for (;;) {
- if (rxd) {
- radio_recv(buf, WDLEN);
- rxd = 0;
- xor(KEY, buf, msg, WDLEN);
- if (memcmp(msg, SYN, WDLEN) == 0) {
- keygen(key, WDLEN);
- xor(KEY, key, buf, WDLEN);
- radio_sendto(txaddr, buf, WDLEN);
- } else {
- xor(key, buf, msg, WDLEN);
- if (memcmp(msg, LOCK, WDLEN) == 0) {
- lock();
- keydel(key, WDLEN);
- } else if (memcmp(msg, UNLOCK, WDLEN) == 0) {
- unlock();
- keydel(key, WDLEN);
- }
- }
- } else {
- radio_pwr_dwn();
- if (getvcc() < VCC_MIN)
- led_bat();
- sleep_bod_disable();
- set_sleep_mode(SLEEP_MODE_PWR_DOWN);
- sleep_mode();
- }
- }
- return 0;
-}
-
-ISR(RX_INTVEC)
-{
- if (!(RX_PIN & (1 << RX_IRQ_PIN)))
- rxd = 1;
-}
-
-ISR(INT1_vect)
-{
- if (is_btn_pressed(PIND, LOCK_PIN)) {
- lock();
- led_locked();
- }
-}
-
-ISR(PCINT2_vect)
-{
- if (is_btn_pressed(PIND, UNLOCK_PIN)) {
- unlock();
- led_unlocked();
- }
-}
-