2 * Copyright (c) 2015, Olivier MATZ <zer0@droids-corp.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the University of California, Berkeley nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef UGC_AVR_UART_H_
29 #define UGC_AVR_UART_H_
33 typedef volatile uint8_t *uart_reg_t;
37 uart_reg_t reg_udr; /* &UDR0 */
38 uart_reg_t reg_ucsra; /* &UCSR0A */
39 uart_reg_t reg_ucsrb; /* &UCSR0B */
40 uart_reg_t reg_ucsrc; /* &UCSR0C */
41 uart_reg_t reg_ubrrl; /* &UBRR0L */
42 uart_reg_t reg_ubrrh; /* &UBRR0H */
44 uint32_t bit_udre:3; /* UDRE0 */
45 uint32_t bit_rxc:3; /* RXC0 */
46 uint32_t bit_udrie:3; /* UDRIE0 */
47 uint32_t bit_txen:3; /* RXEN0 */
48 uint32_t bit_rxen:3; /* TXEN0 */
49 uint32_t bit_rxcie:3; /* RXCIE0 */
50 uint32_t bit_u2x:3; /* U2X0 */
53 const struct ucg_uart_driver_ops avr_uart_ops;
55 #endif /* UGC_AVR_UART_H_ */