1 /* Teensyduino Core Library
2 * http://www.pjrc.com/teensy/
3 * Copyright (c) 2013 PJRC.COM, LLC.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * 1. The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
16 * 2. If the Software is incorporated into a build system that allows
17 * selection among a list of target devices, then similar target
18 * devices manufactured by PJRC.COM must be included in the list of
19 * target devices and selectable in the same manner.
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
25 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
26 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
27 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34 #if defined(USB_HID) || defined(USB_MIDI) || defined(USB_RAWHID) || defined(USB_FLIGHTSIM)
40 // C language implementation
44 int usb_seremu_getchar(void);
45 int usb_seremu_peekchar(void);
46 int usb_seremu_available(void);
47 void usb_seremu_flush_input(void);
48 int usb_seremu_putchar(uint8_t c);
49 int usb_seremu_write(const void *buffer, uint32_t size);
50 int usb_seremu_write_buffer_free(void);
51 void usb_seremu_flush_output(void);
52 void usb_seremu_flush_callback(void);
53 extern volatile uint8_t usb_seremu_transmit_flush_timer;
54 extern volatile uint8_t usb_configuration;
62 class usb_seremu_class : public Stream
65 void begin(long) { /* TODO: call a function that tries to wait for enumeration */ };
66 void end() { /* TODO: flush output and shut down USB port */ };
67 virtual int available() { return usb_seremu_available(); }
68 virtual int read() { return usb_seremu_getchar(); }
69 virtual int peek() { return usb_seremu_peekchar(); }
70 virtual void flush() { usb_seremu_flush_output(); }
71 virtual size_t write(uint8_t c) { return usb_seremu_putchar(c); }
72 virtual size_t write(const uint8_t *buffer, size_t size) { return usb_seremu_write(buffer, size); }
73 size_t write(unsigned long n) { return write((uint8_t)n); }
74 size_t write(long n) { return write((uint8_t)n); }
75 size_t write(unsigned int n) { return write((uint8_t)n); }
76 size_t write(int n) { return write((uint8_t)n); }
77 int availableForWrite() { return usb_seremu_write_buffer_free(); }
79 void send_now(void) { usb_seremu_flush_output(); };
80 uint32_t baud(void) { return 9600; }
81 uint8_t stopbits(void) { return 1; }
82 uint8_t paritytype(void) { return 0; }
83 uint8_t numbits(void) { return 8; }
84 uint8_t dtr(void) { return 1; }
85 uint8_t rts(void) { return 1; }
86 operator bool() { return usb_configuration; }
88 extern usb_seremu_class Serial;
89 extern void serialEvent(void);
94 #else // F_CPU < 20 MHz
96 // Allow Arduino programs using Serial to compile, but Serial will do nothing.
99 class usb_seremu_class : public Stream
102 void begin(long) { };
104 virtual int available() { return 0; }
105 virtual int read() { return -1; }
106 virtual int peek() { return -1; }
107 virtual void flush() { }
108 virtual size_t write(uint8_t c) { return 1; }
109 virtual size_t write(const uint8_t *buffer, size_t size) { return size; }
110 size_t write(unsigned long n) { return 1; }
111 size_t write(long n) { return 1; }
112 size_t write(unsigned int n) { return 1; }
113 size_t write(int n) { return 1; }
114 int availableForWrite() { return 0; }
116 void send_now(void) { }
117 uint32_t baud(void) { return 0; }
118 uint8_t stopbits(void) { return 1; }
119 uint8_t paritytype(void) { return 0; }
120 uint8_t numbits(void) { return 8; }
121 uint8_t dtr(void) { return 1; }
122 uint8_t rts(void) { return 1; }
123 operator bool() { return true; }
126 extern usb_seremu_class Serial;
127 extern void serialEvent(void);
128 #endif // __cplusplus
131 #endif // F_CPU >= 20 MHz
135 #endif // USBseremu_h_