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8108aaccd1
The hang was caused by the RF subsystem getting into trouble. The interrupts still cause some issues, so we don't enable them yet. A system reset (ant-cl -R) will clean up everything nicely.
100 lines
1.9 KiB
C
100 lines
1.9 KiB
C
/*
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* fw/diag.c - Diagnostic request
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*
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* Written 2012 by Werner Almesberger
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* Copyright 2012 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include <string.h>
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#include <avr/interrupt.h>
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#define F_CPU 8000000UL
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#include <util/delay.h>
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#include "hash.h"
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#include "proto.h"
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#include "rf.h"
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#include "dispatch.h"
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#include "secret.h"
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#include "image.h"
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#include "sweep.h"
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#include "accel.h"
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static uint8_t tmp[2];
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static bool failed;
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static void do_diag(void)
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{
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uint8_t pkg[3+2*DIAG_SAMPLES] = { DIAG_ACK, 4, 0, };
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uint8_t *p = pkg+3;
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uint16_t v;
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uint8_t i;
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cli();
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set_line(localize_line(tmp[0], tmp[1]));
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_delay_ms(50);
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for (i = 0; i != DIAG_SAMPLES; i++) {
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v = measure_ref();
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*p++ = v;
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*p++ = v >> 8;
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}
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set_line(localize_line(0, 0));
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/*
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* @@@ for some reason we get a difference of 100 mV between passes
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* if we enable interrupts here
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*
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* sei();
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*/
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rf_send(pkg, sizeof(pkg));
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}
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static bool diag_more(uint8_t seq, uint8_t limit, const uint8_t *payload)
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{
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switch (limit-seq) {
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default:
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hash_merge(payload, PAYLOAD);
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break;
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case 1:
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hash_end();
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failed = !hash_eq(payload, PAYLOAD, 0);
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break;
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case 0:
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if (!hash_eq(payload, PAYLOAD, PAYLOAD))
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failed = 1;
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if (!failed)
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do_diag();
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/* do_diag sends the ACK, not the dispatcher */
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return 0;
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}
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return 1;
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}
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static bool diag_first(uint8_t limit, const uint8_t *payload)
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{
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hash_init();
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hash_merge_progmem(image_secret, sizeof(image_secret));
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hash_merge(payload, PAYLOAD);
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memcpy(&tmp, payload, sizeof(tmp));
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failed = 0;
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return 1;
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}
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struct handler diag_handler = {
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.type = DIAG,
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.first = diag_first,
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.more = diag_more,
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};
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