139 lines
3.0 KiB
C
139 lines
3.0 KiB
C
#include <mc1322x.h>
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#include <board.h>
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#include <stdio.h>
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#include "tests.h"
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#include "config.h"
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/* This program communicates with itself and determines the packet */
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/* error rate (PER) under a variety of powers and packet sizes */
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/* Each test the packets are sent and received as fast as possible */
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/* The program first scans on channel 11 and attempts to open a test */
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/* session with a node. After opening a session, the nodes begin the */
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/* test sequence */
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/* how long to wait between session requests */
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#define SESSION_REQ_TIMEOUT 10000 /* phony seconds */
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enum STATES {
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SCANNING,
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MAX_STATE
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};
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typedef uint32_t ptype_t;
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enum PACKET_TYPE {
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PACKET_SESS_REQ,
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MAX_PACKET_TYPE
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};
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/* get protocol level packet type */
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/* this is not 802.15.4 packet type */
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ptype_t get_packet_type(packet_t * p __attribute__((unused))) {
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return MAX_PACKET_TYPE;
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}
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typedef uint32_t session_id_t;
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/* phony get_time */
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uint32_t get_time(void) {
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static volatile int32_t cur_time = 0;
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cur_time++;
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return cur_time;
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}
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#define random_short_addr() (*MACA_RANDOM & ones(sizeof(short_addr_t)*8))
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void build_session_req(volatile packet_t *p) {
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static uint8_t count = 0;
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p->length = 4; p->offset = 0;
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p->data[0] = 0xff;
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p->data[1] = 0x01;
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p->data[2] = 0x02;
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p->data[3] = count++;
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return;
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}
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void session_req(short_addr_t addr __attribute__((unused))) {
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static volatile int time = 0;
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volatile packet_t *p;
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if((get_time() - time) > SESSION_REQ_TIMEOUT) {
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time = get_time();
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if((p = get_free_packet())) {
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build_session_req(p);
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tx_packet(p);
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}
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}
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return;
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}
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session_id_t open_session(short_addr_t addr __attribute((unused))) { return 0; }
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void main(void) {
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uint32_t state;
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volatile packet_t *p;
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session_id_t sesid;
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ptype_t type;
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short_addr_t addr, my_addr;
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/* trim the reference osc. to 24MHz */
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pack_XTAL_CNTL(CTUNE_4PF, CTUNE, FTUNE, IBIAS);
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uart_init(INC, MOD, SAMP);
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vreg_init();
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maca_init();
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set_power(0x0f); /* 0dbm */
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set_channel(0); /* channel 11 */
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/* generate a random short address */
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my_addr = random_short_addr();
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/* sets up tx_on, should be a board specific item */
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*GPIO_FUNC_SEL2 = (0x01 << ((44-16*2)*2));
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*GPIO_PAD_DIR0 = *GPIO_PAD_DIR0 | (1<<(44-32));
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print_welcome("Packet error test");
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state = SCANNING;
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while(1) {
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switch(state) {
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case SCANNING:
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if((p = rx_packet())) {
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/* extract what we need and free the packet */
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printf("Recv: ");
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print_packet(p);
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type = get_packet_type((packet_t *) p);
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addr = p->addr;
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free_packet(p);
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/* pick a new address if someone else is using ours */
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if(addr == my_addr) {
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my_addr = random_short_addr();
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printf("DUP addr received, changing to new addr 0x%x02\n\r",my_addr);
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}
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/* if we have a packet */
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/* check if it's a session request beacon */
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if(type == PACKET_SESS_REQ) {
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/* try to start a session */
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sesid = open_session(p->addr);
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}
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} else {
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session_req(my_addr);
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}
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break;
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default:
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break;
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}
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}
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}
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