Contiki-NG
cc2420-arch.c
1 /*
2  * Copyright (c) 2006, Swedish Institute of Computer Science
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the Institute nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  */
30 
31 #include "contiki.h"
32 #include "contiki-net.h"
33 
34 #include "dev/spi-legacy.h"
35 #include "cc2420.h"
36 #include "isr_compat.h"
37 
38 #ifdef CC2420_CONF_SFD_TIMESTAMPS
39 #define CONF_SFD_TIMESTAMPS CC2420_CONF_SFD_TIMESTAMPS
40 #endif /* CC2420_CONF_SFD_TIMESTAMPS */
41 
42 #ifndef CONF_SFD_TIMESTAMPS
43 #define CONF_SFD_TIMESTAMPS 0
44 #endif /* CONF_SFD_TIMESTAMPS */
45 
46 #ifdef CONF_SFD_TIMESTAMPS
47 #include "cc2420-arch-sfd.h"
48 #endif
49 
50 /*---------------------------------------------------------------------------*/
51 ISR(CC2420_IRQ, cc2420_port1_interrupt)
52 {
53  if(cc2420_interrupt()) {
54  LPM4_EXIT;
55  }
56 }
57 /*---------------------------------------------------------------------------*/
58 void
59 cc2420_arch_init(void)
60 {
61  spi_init();
62 
63  /* all input by default, set these as output */
64  CC2420_CSN_PORT(DIR) |= BV(CC2420_CSN_PIN);
65  CC2420_VREG_PORT(DIR) |= BV(CC2420_VREG_PIN);
66  CC2420_RESET_PORT(DIR) |= BV(CC2420_RESET_PIN);
67 
68 #if CONF_SFD_TIMESTAMPS
69  cc2420_arch_sfd_init();
70 #endif
71 
72  CC2420_SPI_DISABLE(); /* Unselect radio. */
73 }
74 /*---------------------------------------------------------------------------*/
CC2420 driver header file
int cc2420_interrupt(void)
Interrupt function, called from the simple-cc2420-arch driver.
Definition: cc2420.c:880
Basic SPI macros