IEEE 802.15.4 subsystem
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1 | /* |
2 | * fw/spi.h - ATmega8 family SPI I/O |
3 | * |
4 | * Written 2011, 2013 by Werner Almesberger |
5 | * Copyright 2011, 2013 Werner Almesberger |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | */ |
12 | |
13 | #ifndef SPI_H |
14 | #define SPI_H |
15 | |
16 | #include <stdint.h> |
17 | |
18 | |
19 | void spi_begin(void); |
20 | uint8_t spi_io(uint8_t v); |
21 | void spi_end(void); |
22 | void spi_off(void); |
23 | void spi_init(void); |
24 | |
25 | #define spi_send(v) (void) spi_io(v) |
26 | #define spi_recv(v) spi_io(0) |
27 | |
28 | void spi_recv_block(uint8_t *buf, uint8_t n); |
29 | |
30 | #endif /* !SPI_H */ |
31 |