autoack-rx.c

00001 /*
00002  * Copyright (c) 2010, Mariano Alvira <mar@devl.org> and other contributors
00003  * to the MC1322x project (http://mc1322x.devl.org)
00004  * All rights reserved.
00005  *
00006  * Redistribution and use in source and binary forms, with or without
00007  * modification, are permitted provided that the following conditions
00008  * are met:
00009  * 1. Redistributions of source code must retain the above copyright
00010  *    notice, this list of conditions and the following disclaimer.
00011  * 2. Redistributions in binary form must reproduce the above copyright
00012  *    notice, this list of conditions and the following disclaimer in the
00013  *    documentation and/or other materials provided with the distribution.
00014  * 3. Neither the name of the Institute nor the names of its contributors
00015  *    may be used to endorse or promote products derived from this software
00016  *    without specific prior written permission.
00017  *
00018  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
00019  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00020  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00021  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
00022  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00023  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00024  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00025  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00026  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00027  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00028  * SUCH DAMAGE.
00029  *
00030  * This file is part of libmc1322x: see http://mc1322x.devl.org
00031  * for details. 
00032  *
00033  *
00034  */
00035 
00036 #include <mc1322x.h>
00037 #include <board.h>
00038 #include <stdio.h>
00039 
00040 #include "tests.h"
00041 #include "config.h"
00042 
00043 #define LED LED_GREEN
00044 
00045 void maca_rx_callback(volatile packet_t *p) {
00046         (void)p;
00047         gpio_data_set(1ULL<< LED);
00048         gpio_data_reset(1ULL<< LED);
00049 }
00050 
00051 void main(void) {
00052         volatile packet_t *p;
00053         volatile uint8_t t=20;
00054         uint8_t chan;
00055         char c;
00056 
00057         gpio_data(0);
00058         
00059         gpio_pad_dir_set( 1ULL << LED );
00060         /* read from the data register instead of the pad */
00061         /* this is needed because the led clamps the voltage low */
00062         gpio_data_sel( 1ULL << LED);
00063 
00064         /* trim the reference osc. to 24MHz */
00065         trim_xtal();
00066 
00067         uart_init(INC, MOD, SAMP);
00068 
00069         vreg_init();
00070 
00071         maca_init();
00072 
00073         /* sets up tx_on, should be a board specific item */
00074         *GPIO_FUNC_SEL2 = (0x01 << ((44-16*2)*2));
00075         gpio_pad_dir_set( 1ULL << 44 );
00076 
00077         set_power(0x0f); /* 0dbm */
00078         chan = 0;
00079         set_channel(chan); /* channel 11 */
00080 
00081         *MACA_MACPANID = 0xaaaa;
00082         *MACA_MAC16ADDR = 0x1111;
00083         *MACA_TXACKDELAY = 68; /* 68 puts the tx ack at about the correct spot */
00084         set_prm_mode(AUTOACK);
00085 
00086         print_welcome("rftest-rx");
00087         while(1) {              
00088 
00089                 /* call check_maca() periodically --- this works around */
00090                 /* a few lockup conditions */
00091                 check_maca();
00092 
00093                 if((p = rx_packet())) {
00094                         /* print and free the packet */
00095                         printf("autoack-rx --- ");
00096                         print_packet(p);
00097                         free_packet(p);
00098                 }
00099 
00100                 if(uart1_can_get()) {
00101                         c = uart1_getc();
00102                         if(c == 'z') t++;
00103                         if(c == 'x') t--;
00104                         *MACA_TXACKDELAY = t;
00105                         printf("tx ack delay: %d\n\r", t);
00106                 }
00107 
00108         }
00109 }

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