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/* led.c */
extern void led_init(void);
extern void led1_set(int v);
extern void led2_set(int v);
extern void led3_set(int v);
extern void led_clear(void);
extern void led_set(void);
extern void led_blink(unsigned ms);
extern void led_tick(void);
extern void led_slow_tick(void);
/* ticker.c */
extern volatile uint32_t ticks;
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);
/* ring.c */
extern void ring_init(volatile ring_t *r, uint8_t *buf, size_t len);
extern int ring_write_byte(volatile ring_t *r, uint8_t c);
extern int ring_read_byte(volatile ring_t *r, uint8_t *c);
extern int ring_write(volatile ring_t *r, uint8_t *buf, size_t len, int blocking);
extern int ring_empty(volatile ring_t *r);
/* usart.c */
extern volatile ring_t rx2_ring;
extern volatile ring_t tx2_ring;
extern volatile ring_t rx1_ring;
extern volatile ring_t tx1_ring;
extern void usart2_isr(void);
extern void usart2_queue(uint8_t d);
extern void usart2_drain(void);
extern int usart2_write(char *ptr, int len, int blocking);
extern void usart1_isr(void);
extern void usart1_queue(uint8_t d);
extern void usart1_drain(void);
extern int usart1_write(char *ptr, int len, int blocking);
extern void usart_rings_init(void);
extern void usart_init(void);
/* stdio.c */
extern int _open(const char *name, int flags, int mode);
extern int _close(int file);
extern int _write(int file, char *buf, int nbytes);
extern int _read(int file, char *buf, int nbytes);
extern int _fstat(int file, struct stat *st);
extern int _lseek(int file, int offset, int whence);
extern int isatty(int file);
extern void stdio_drain(void);
/* lwip_glue.c */
extern struct netif if0;
extern uint32_t sys_now(void);
extern void dispatch_lwip(void);
extern void start_lwip(void);
/* steth.c */
extern void steth_calculate_mac(void);
extern void eth_isr(void);
extern void steth_isr(void);
extern err_t steth_lwip_init(struct netif *netif);
extern void steth_init(void);
extern void steth_slow_tick(void);
/* msf.c */
extern uint64_t msf_last_happy;
extern void exti1_isr(void);
extern void msf_dispatch(void);
extern void msf_init(void);
/* abs.c */
extern uint64_t abs_extend(uint32_t now);
extern void abs_meh(void);
extern uint64_t abs_get(void);
extern void abs_slow_tick(void);
/* pll.c */
extern int64_t pll_freq;
extern uint64_t pll_last_update;
extern int pll_valid;
extern int pll_ready;
extern void pll_meh(void);
extern uint64_t make_happy(uint64_t abs, int64_t shift);
extern void pll_dispatch(uint64_t happy, uint64_t edge, const char *src);
extern void pll_set_offset(EPOCH epoch, uint64_t abs);
extern EPOCH _pll_decompose(uint64_t abs);
extern EPOCH pll_decompose_diff(int64_t diff);
extern EPOCH pll_decompose(uint64_t abs);
/* main.c */
extern int time_known;
extern int main(void);
/* time_fn.c */
extern UTC time_epoch_to_utc(EPOCH epoch);
extern EPOCH time_utc_to_epoch(UTC u);
extern void utc_to_str(char *dst, UTC u);
extern void time_print_utc(const char *p, UTC u, const char *t);
extern void time_print_epoch(const char *p, EPOCH e, const char *t);
extern double time_utc_to_tjd(UTC u);
extern double time_utc_to_ra(UTC u);
extern ST time_ra_to_st(double ra);
extern ST time_utc_to_lst(UTC u, double lon);
/* ntp.c */
extern void ntp_init(void);
/* dcf77.c */
extern uint64_t dcf77_last_happy;
extern void exti2_isr(void);
extern void dcf77_dispatch(void);
extern void dcf77_init(void);
/* util.c */
extern int check_parity(uint8_t *d, unsigned s, unsigned e, uint8_t p);
extern unsigned bcd(uint8_t *d, unsigned s, unsigned e);
extern unsigned le_bcd(uint8_t *d, unsigned s, unsigned e);
/* stats.c */
/* gps.c */
extern uint64_t gps_last_happy;
extern void exti9_5_isr(void);
extern double gps_lat;
extern double gps_lon;
extern int gps_utc_diff;
extern int gps_wday;
extern void gps_dispatch(void);
extern int gps_init(void);
extern int gps_almanac(void);
extern void gps_dump_almanac(void);
extern int gps_bs(void);
extern void gps_reset(void);
/* hexdump.c */
extern void hexdump(void *_d, int len);
/* bits.c */
extern void dump_bits(char *wot, uint8_t *bits);
/* max7219.c */
extern unsigned fix_dots;
extern unsigned fix_dots_even;
extern void max7219_report_fix(char fix, char fix2);
extern void max7219_report_svin(int valid, int active);
extern void max7219_dispatch(void);
extern void max7219_init(int on, int brightness);
/* report.c */
extern void report_time(const char *src, EPOCH e, uint64_t abs, const char *info);
/* sysclk.c */
extern void sysclk_event(void);
extern uint64_t sysclk_extend(uint32_t now);
extern void sysclk_dispatch(void);
/* cdcacm.c */
extern ring_t cdcacm_rx_ring;
extern ring_t cdcacm_tx_ring;
extern const struct usb_interface_descriptor comm_iface;
extern const struct usb_interface_descriptor data_iface;
extern void cdcacm_tick(void);
extern int cdcacm_write(char *ptr, int len, int blocking);
extern void cdcacm_set_config(usbd_device *usbd_dev, uint16_t wValue);
extern void cdcacm_rings_init(void);
/* usb.c */
extern uint8_t usbd_control_buffer[128];
extern usbd_device *usb_device;
extern void otg_fs_isr(void);
extern void usb_init(void);
/* dfu.c */
extern const struct usb_dfu_descriptor dfu_function;
extern const struct usb_interface_descriptor dfu_iface;
extern int dfu_control_request(usbd_device *usbd_dev, struct usb_setup_data *req, uint8_t **buf, uint16_t *len, usbd_control_complete_callback *complete);
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