#ifndef USBserial_h_
#define USBserial_h_
#include "usb_desc.h"
#if (defined(CDC_STATUS_INTERFACE) && defined(CDC_DATA_INTERFACE)) || defined(USB_DISABLED)
#include <inttypes.h>
#if F_CPU >= 20000000 && !defined(USB_DISABLED)
#ifdef __cplusplus
extern "C" {
#endif
int usb_serial_getchar(void);
int usb_serial_peekchar(void);
int usb_serial_available(void);
int usb_serial_read(void *buffer, uint32_t size);
void usb_serial_flush_input(void);
int usb_serial_putchar(uint8_t c);
int usb_serial_write(const void *buffer, uint32_t size);
int usb_serial_write_buffer_free(void);
void usb_serial_flush_output(void);
extern uint32_t usb_cdc_line_coding[2];
extern volatile uint32_t usb_cdc_line_rtsdtr_millis;
extern volatile uint32_t systick_millis_count;
extern volatile uint8_t usb_cdc_line_rtsdtr;
extern volatile uint8_t usb_cdc_transmit_flush_timer;
extern volatile uint8_t usb_configuration;
#ifdef __cplusplus
}
#endif
#define USB_SERIAL_DTR 0x01
#define USB_SERIAL_RTS 0x02
#ifdef __cplusplus
#include "Stream.h"
class usb_serial_class : public Stream
{
public:
void begin(long) { };
void end() { };
virtual int available() { return usb_serial_available(); }
virtual int read() { return usb_serial_getchar(); }
virtual int peek() { return usb_serial_peekchar(); }
virtual void flush() { usb_serial_flush_output(); } virtual void clear(void) { usb_serial_flush_input(); }
virtual size_t write(uint8_t c) { return usb_serial_putchar(c); }
virtual size_t write(const uint8_t *buffer, size_t size) { return usb_serial_write(buffer, size); }
size_t write(unsigned long n) { return write((uint8_t)n); }
size_t write(long n) { return write((uint8_t)n); }
size_t write(unsigned int n) { return write((uint8_t)n); }
size_t write(int n) { return write((uint8_t)n); }
int availableForWrite() { return usb_serial_write_buffer_free(); }
using Print::write;
void send_now(void) { usb_serial_flush_output(); }
uint32_t baud(void) { return usb_cdc_line_coding[0]; }
uint8_t stopbits(void) { uint8_t b = usb_cdc_line_coding[1]; if (!b) b = 1; return b; }
uint8_t paritytype(void) { return usb_cdc_line_coding[1] >> 8; } uint8_t numbits(void) { return usb_cdc_line_coding[1] >> 16; }
uint8_t dtr(void) { return (usb_cdc_line_rtsdtr & USB_SERIAL_DTR) ? 1 : 0; }
uint8_t rts(void) { return (usb_cdc_line_rtsdtr & USB_SERIAL_RTS) ? 1 : 0; }
operator bool() { return usb_configuration &&
(usb_cdc_line_rtsdtr & (USB_SERIAL_DTR | USB_SERIAL_RTS)) &&
((uint32_t)(systick_millis_count - usb_cdc_line_rtsdtr_millis) >= 25);
}
size_t readBytes(char *buffer, size_t length) {
size_t count=0;
unsigned long startMillis = millis();
do {
count += usb_serial_read(buffer + count, length - count);
if (count >= length) return count;
} while(millis() - startMillis < _timeout);
setReadError();
return count;
}
};
extern usb_serial_class Serial;
extern void serialEvent(void);
#endif
#else
#ifdef __cplusplus
#include "Stream.h"
class usb_serial_class : public Stream
{
public:
void begin(long) { };
void end() { };
virtual int available() { return 0; }
virtual int read() { return -1; }
virtual int peek() { return -1; }
virtual void flush() { }
virtual void clear() { }
virtual size_t write(uint8_t c) { return 1; }
virtual size_t write(const uint8_t *buffer, size_t size) { return size; }
size_t write(unsigned long n) { return 1; }
size_t write(long n) { return 1; }
size_t write(unsigned int n) { return 1; }
size_t write(int n) { return 1; }
int availableForWrite() { return 0; }
using Print::write;
void send_now(void) { }
uint32_t baud(void) { return 0; }
uint8_t stopbits(void) { return 1; }
uint8_t paritytype(void) { return 0; }
uint8_t numbits(void) { return 8; }
uint8_t dtr(void) { return 1; }
uint8_t rts(void) { return 1; }
operator bool() { return true; }
};
extern usb_serial_class Serial;
extern void serialEvent(void);
#endif
#endif
#endif
#endif