/* hexdump.c */
extern void hexdump(void *_d, int len);
/* main.c */
extern volatile int request_search;
extern int main(void);
/* ring.c */
extern void ring_init(ring_t *r, uint8_t *buf, size_t len);
extern int ring_write_byte(ring_t *r, uint8_t c);
extern int ring_read_byte(ring_t *r, uint8_t *c);
extern int ring_write(ring_t *r, uint8_t *buf, size_t len);
extern int ring_empty(ring_t *r);
/* ticker.c */
extern volatile uint32_t ticks;
extern uint32_t clock_scale;
extern void delay_us(uint32_t d);
extern void sys_tick_handler(void);
extern void delay_ms(uint32_t d);
extern void ticker_init(void);
/* usart.c */
extern ring_t rx1_ring;
extern ring_t tx1_ring;
extern unsigned locked;
extern void usart_ticker(void);
extern void usart1_isr(void);
extern int _write(int file, char *ptr, int len);
extern void usart1_queue(uint8_t d);
extern void usart1_queue_buf(void *buf, size_t len);
extern void usart1_drain(void);
extern void usart_init(void);
/* watchdog.c */
extern void watchdog_init(void);
extern void sausages(void);
/* led.c */
extern void led_init(void);
extern void led1_set(void);
extern void led1_clear(void);
extern void led_tick(void);
/* 1wire.c */
extern int onewire_reset(void);
extern void onewire_one(void);
extern void onewire_zero(void);
extern int onewire_read(void);
extern void onewire_write_byte(uint8_t v);
extern uint8_t onewire_read_byte(void);
extern void onewire_read_bytes(uint8_t *buf, int n);
extern void onewire_write_bytes(const uint8_t *buf, int n);
extern int onewire_select(const Onewire_addr *a);
extern int onewire_reset_and_select(const Onewire_addr *a);
extern int onewire_wait_complete(unsigned timeout);
extern int onewire_check_crc(uint8_t *buf, int n, uint8_t v);
extern int onewire_search(void);
extern void onewire_init(void);
/* inputs.c */
extern int input_get(unsigned r);
extern void inputs_init(void);
/* outputs.c */
extern void output_set(unsigned r);
extern void output_clear(unsigned r);
extern void outputs_set(unsigned v);
extern void output_write(unsigned r, unsigned v);
extern void outputs_init(void);
/* logic.c */
extern volatile int temp[8];
extern int low_limit[8];
extern int high_limit[8];
extern int valve_state[8];
extern void mqtt_dispatch(char *type, char *who, char *what, char *msg);
extern void logic_tick(void);
extern void logic_slow_tick(void);
extern void logic_dispatch(void);
extern void logic_init(void);
/* ds18b20.c */
extern unsigned extract_leu16(uint8_t *d);
extern int extract_les16(uint8_t *d);
extern int ds18b20_read_sp(const Onewire_addr *a, uint8_t *buf, unsigned len);
extern int ds18b20_write_sp(const Onewire_addr *a, uint8_t *buf, unsigned len);
extern int ds18b20_convert(const Onewire_addr *a, unsigned timeout);
extern int ds18b20_set_12(const Onewire_addr *a);
extern int ds18b20_read(const Onewire_addr *a, int *temp);
extern int ds18b20_set_12_convert(const Onewire_addr *a);
extern int ds18b20_set_12_convert_and_read(const Onewire_addr *a, int *temp);