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mirror of git://projects.qi-hardware.com/ben-wpan.git synced 2024-11-26 00:39:20 +02:00
ben-wpan/tools/atspi-rssi/atspi-rssi.c
Werner Almesberger 18eec557d0 Updated atusd driver for new hardware. Make use of the interrupt line.
- tools/lib/atusd.c (spi_send_partial, spi_send): removed the old spi_send
  and renamed spi_send_partial to spi_send
- tools/lib/atusd.c (atusd_cycle, spi_send, spi_recv, atusd_open): updated
  for removal of SLP_TR and split of MxSx into MOSI and MISO
- tools/lib/atusd.c (atusd_reset_rf, atusd_open): added delays to precharge
  the capacitors
- tools/lib/atusd.c (atusd_reset, spi_data_in, spi_data_out, spi_finish):
  removed functions for obsolete hardware features
- tools/lib/atusd.c (atusd_reg_read): removed calls to removed functions
- tools/lib/atusd.c (atusd_buf_write, atusd_buf_read, atusd_driver): new
  buffer read/write functions
- tools/atspi-txrx/atspi-txrx.c (init_txrx): set the internal osciallator
  trim only in the USB version. Switch to the external oscillator in the
  uSD version.
- tools/atspi-rssi/atspi-rssi.c (sweep), tools/atspi-txrx/atspi-txrx.c
  (set_channel): wait for the PLL to settle after setting the channel
- tools/include/atspi.h, tools/lib/atspi.c (atspi_interrupt),
  tools/lib/driver.h (struct atspi_driver), tools/lib/atusd.c
  (atusd_interrupt): new function to poll the interrupt line
- tools/atspi-txrx/atspi-txrx.c (receive): only read REG_IRQ_STATUS if
  there is a pending interrupt
- tools/atspi-id/atspi-id.c (usage): print "usage:" as well
- tools/Makefile (upload): upload the atspi tools to the Ben
2010-09-09 09:19:06 -03:00

90 lines
1.9 KiB
C

/*
* atspi-rssi/atspi-rssi.c - ben-wpan AT86RF230 spectrum scan
*
* Written 2010 by Werner Almesberger
* Copyright 2010 Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <stdlib.h>
#include <stdio.h>
#include <sys/time.h>
#include "at86rf230.h"
#include "atspi/ep0.h"
#include "atspi.h"
static struct timeval t0;
static void sweep(struct atspi_dsc *dsc)
{
int chan, rssi;
struct timeval t;
for (chan = 11; chan <= 26; chan++) {
atspi_reg_write(dsc, REG_PHY_CC_CCA, chan);
/* 150 us, according to AVR2001 section 3.5 */
usleep(1000);
/*
* No need to explicitly wait for the PPL lock - going USB-SPI
* is pretty slow, leaving the transceiver plenty of time.
*/
gettimeofday(&t, NULL);
rssi = atspi_reg_read(dsc, REG_PHY_RSSI) & RSSI_MASK;
t.tv_sec -= t0.tv_sec;
t.tv_usec -= t0.tv_usec;
printf("%d %f %d\n",
2405+(chan-11)*5,
(double) t.tv_sec+t.tv_usec/1000000.0,
-91+3*(rssi-1));
}
printf("\n");
}
static void usage(const char *name)
{
fprintf(stderr, "%s sweeps \n", name);
exit(1);
}
int main(int argc, const char **argv)
{
struct atspi_dsc *dsc;
unsigned long sweeps, i;
char *end;
if (argc != 2)
usage(*argv);
sweeps = strtoul(argv[1], &end, 0);
if (*end)
usage(*argv);
dsc = atspi_open();
if (!dsc)
return 1;
atspi_reg_write(dsc, REG_TRX_STATE, TRX_CMD_TRX_OFF);
/*
* No need to explicitly wait for things to stabilize - going USB-SPI
* is pretty slow, leaving the transceiver more than enough time.
*/
atspi_reg_write(dsc, REG_TRX_STATE, TRX_CMD_RX_ON);
gettimeofday(&t0, NULL);
for (i = 0; i != sweeps; i++)
sweep(dsc);
atspi_reg_write(dsc, REG_TRX_STATE, TRX_CMD_TRX_OFF);
return 0;
}