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/* tims_keyboard.c */
extern int main(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, void (**complete)(usbd_device *usbd_dev, struct usb_setup_data *req));
/* keyboard.c */
extern const struct usb_endpoint_descriptor keyboard_endpoint;
extern const struct usb_interface_descriptor keyboard_iface;
extern void keyboard_get_descriptor(uint8_t **buf, uint16_t *len);
extern void keyboard_test(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 void usb_set_config(usbd_device *usbd_dev, uint16_t wValue);
extern void usb_init(void);
extern void usb_run(void);
/* consumer.c */
extern const struct usb_endpoint_descriptor consumer_endpoint;
extern const struct usb_interface_descriptor consumer_iface;
extern void consumer_get_descriptor(uint8_t **buf, uint16_t *len);
/* atkbd.c */
extern void exti0_isr(void);
extern void atkbd_set(int clk, int dat);
extern int atkbd_send(uint8_t d);
extern int atkbd_request_echo(void);
extern int atkbd_set_leds(uint8_t leds);
extern int atkbd_set_scanset(uint8_t scanset);
extern int atkbd_set_mb(void);
extern int atkbd_set_mbr(void);
extern void atkbd_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 ring_t rx1_ring;
extern ring_t tx1_ring;
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_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 _lseek(int file, int offset, int whence);
extern int isatty(int file);
extern void stdio_drain(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);
/* scancode.c */
extern void scancode_dispatch(int key, int updown);
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