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/* 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, int (**complete)(usbd_device *usbd_dev, struct usb_setup_data *req));
/* main.c */
extern int main(void);
/* usb.c */
extern const struct usb_device_descriptor dev;
extern const struct usb_interface ifaces[];
extern const struct usb_config_descriptor config;
extern usbd_device *usbd_dev;
extern int usb_is_suspended;
extern int usb_running;
extern void usb_tick(void);
extern int usb_wakeup_host(void);
extern int class_control_request(usbd_device *usbd_dev, struct usb_setup_data *req, uint8_t **buf, uint16_t *len, int (**complete)(usbd_device *usbd_dev, struct usb_setup_data *req));
extern void usb_set_config(usbd_device *usbd_dev, uint16_t wValue);
extern uint8_t usbd_control_buffer[128];
extern void usb_init(void);
extern void usb_run(void);
/* led.c */
extern void led_init(void);
extern void led_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 int timed_out(uint32_t then, unsigned int ms);
extern void ticker_init(void);
/* i2c.c */
/* lcd.c */
/* cdcacm.c */
extern const struct usb_interface_descriptor comm_iface[];
extern const struct usb_interface_descriptor data_iface[];
extern int cdcacm_control_request(usbd_device *usbd_dev, struct usb_setup_data *req, uint8_t **buf, uint16_t *len, int (**complete)(usbd_device *usbd_dev, struct usb_setup_data *req));
extern void cdcacm_data_tx(void *buf, size_t len);
extern void cdcacm_data_rx_cb(usbd_device *usbd_dev, uint8_t ep);
/* usart.c */
extern ring_t rx1_ring;
extern ring_t tx1_ring;
extern ring_t rx2_ring;
extern ring_t tx2_ring;
extern void usart1_isr(void);
extern void usart2_isr(void);
extern int _write(int file, char *ptr, int len);
extern int usart1_tx(void *ptr, int len);
extern int usart2_tx(void *buf, size_t len);
extern void usart1_queue(uint8_t d);
extern void usart2_queue(uint8_t d);
extern void usart2_drain(void);
extern void usart1_drain(void);
extern void usart_init(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);
/* serial.c */
extern void serial_poll(void);
/* gpio.c */
extern int hook;
extern void exti9_5_isr(void);
extern void exti15_10_isr(void);
extern void toggle_fake_hook(void);
extern void gpio_tick(void);
extern void gpio_init(void);
/* console.c */
extern int console_tx(void *buf, size_t len);
/* ringer.c */
extern int ringing;
extern void ringer_tick(void);
extern void ringer_off(void);
extern void ringer_ring(int l);
extern void ringer_disable(void);
extern void ringer_enable(void);
extern void ringer_init(void);
/* modem.c */
extern int in_call;
extern int dialtone;
extern void modem_send(void);
extern void modem_cmd(char *buf);
extern void modem_dial(char *buf);
extern void modem_tone_off(void);
extern void modem_tone(int i);
extern void modem_tone_nu(void);
extern void modem_line(void);
extern void modem_byte(uint8_t b);
extern void answer_call(void);
extern void terminate_call(void);
extern void dialtone_on(void);
extern void dialtone_off(void);
extern void modem_tick(void);
extern void modem_init(void);
/* dialstr.c */
extern void dialstr_clear(void);
extern void dialstr_digit(char digit);
extern void dialstr_dial(void);
extern void dialstr_tick(void);
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