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uart.h
1 /*
2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <joerg@FreeBSD.ORG> wrote this file. As long as you retain this notice you
5 * can do whatever you want with this stuff. If we meet some day, and you think
6 * this stuff is worth it, you can buy me a beer in return. Joerg Wunsch
7 * ----------------------------------------------------------------------------
8 *
9 * Stdio demo, UART declarations
10 *
11 * $Id: uart.h 1008 2005-12-28 21:38:59Z joerg_wunsch $
12 */
13
14 /*
15 * Perform UART startup initialization.
16 */
17 void uart_init(void);
18
19 /*
20 * Send one character to the UART.
21 */
22 int uart_putchar(char c, FILE *stream);
23
24 /*
25 * Size of internal line buffer used by uart_getchar().
26 */
27 #define RX_BUFSIZE 80
28
29 /*
30 * Receive one character from the UART. The actual reception is
31 * line-buffered, and one character is returned from the buffer at
32 * each invokation.
33 */
34 int uart_getchar(FILE *stream);

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