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 // This header is NOT meant to be included when compiling
35 // user sketches in Arduino. The low-level functions
36 // provided by usb_dev.c are meant to be called only by
37 // code which provides higher-level interfaces to the user.
43 uint8_t usb_configured(void); // is the USB port configured
45 usb_packet_t *usb_rx(uint32_t endpoint);
46 uint32_t usb_tx_byte_count(uint32_t endpoint);
47 uint32_t usb_tx_packet_count(uint32_t endpoint);
48 void usb_tx(uint32_t endpoint, usb_packet_t *packet);
49 void usb_tx_isr(uint32_t endpoint, usb_packet_t *packet);
51 void usb_device_reload();
53 extern volatile uint8_t usb_configuration;
55 extern uint16_t usb_rx_byte_count_data[NUM_ENDPOINTS];
56 static inline uint32_t usb_rx_byte_count(uint32_t endpoint) __attribute__((always_inline));
57 static inline uint32_t usb_rx_byte_count(uint32_t endpoint)
60 if (endpoint >= NUM_ENDPOINTS) return 0;
61 return usb_rx_byte_count_data[endpoint];
64 #ifdef CDC_DATA_INTERFACE
65 extern uint32_t usb_cdc_line_coding[2];
66 extern volatile uint8_t usb_cdc_line_rtsdtr;
67 extern volatile uint8_t usb_cdc_transmit_flush_timer;
68 extern void usb_serial_flush_callback(void);
72 #ifdef KEYBOARD_INTERFACE
73 extern uint8_t keyboard_modifier_keys;
74 extern uint8_t keyboard_keys[6];
75 extern uint8_t keyboard_protocol;
76 extern uint8_t keyboard_idle_config;
77 extern uint8_t keyboard_idle_count;
78 extern volatile uint8_t keyboard_leds;