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1fb05c221d
When some interrupt(s) happened but the one(s) wait_for_interrupt was waiting for weren't among them, it printed the list of interrupts even if they were all in "ignore". This made sequences like RX_START followed by TRX_END unnecessarily noisy. Now, wait_for_interrupt only prints the pending interrupts if at least one of them is not in "ignore".
88 lines
1.8 KiB
C
88 lines
1.8 KiB
C
/*
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* lib/misctxrx.c - Miscellaenous transceiver helper functions
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*
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* Written 2010-2011 by Werner Almesberger
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* Copyright 2010-2011 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 <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <signal.h>
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#include "at86rf230.h"
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#include "atrf.h"
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#include "misctxrx.h"
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static volatile int run = 1;
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static void die(int sig)
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{
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run = 0;
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}
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uint8_t wait_for_interrupt(struct atrf_dsc *dsc, uint8_t wait_for,
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uint8_t ignore, int sleep_us, int timeout)
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{
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uint8_t irq = 0, show;
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void (*old_sig)(int);
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run = 1;
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old_sig = signal(SIGINT, die);
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while (run) {
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while (run && !atrf_interrupt(dsc)) {
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usleep(sleep_us);
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if (timeout && !--timeout) {
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irq = 0;
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goto out;
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}
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}
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irq = atrf_reg_read(dsc, REG_IRQ_STATUS);
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if (atrf_error(dsc))
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exit(1);
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if (!irq)
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continue;
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show = irq & ~ignore;
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if (!show) {
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if (irq & wait_for)
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break;
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continue;
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}
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fprintf(stderr, "IRQ (0x%02x):", irq);
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if (irq & IRQ_PLL_LOCK)
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fprintf(stderr, " PLL_LOCK");
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if (irq & IRQ_PLL_UNLOCK)
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fprintf(stderr, " PLL_UNLOCK");
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if (irq & IRQ_RX_START)
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fprintf(stderr, " RX_START");
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if (irq & IRQ_TRX_END)
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fprintf(stderr, " TRX_END");
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if (irq & IRQ_CCA_ED_DONE)
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fprintf(stderr, " CCA_ED_DONE");
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if (irq & IRQ_AMI)
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fprintf(stderr, " AMI");
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if (irq & IRQ_TRX_UR)
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fprintf(stderr, " TRX_UR");
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if (irq & IRQ_BAT_LOW)
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fprintf(stderr, " BAT_LOW");
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fprintf(stderr, "\n");
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if (irq & wait_for)
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break;
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}
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out:
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signal(SIGINT, old_sig);
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if (!run)
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raise(SIGINT);
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return irq;
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}
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