mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-22 12:22:48 +02:00
tools/atrf-xtal: new utility to measure the crystal frequency
- Makefile (DIRS): added atrf-xtal - atrf-xtal/Makefile: build atrf-xtal for the Ben or do nothing elsewhere - atrf-xtal/atrf-xtal.h, atrf-xtal/atrf-xtal.c: diagnostic utility to determine the transceiver's crystal frequency - atrf-xtal/atben.c: dirty low-level driver for ATBEN
This commit is contained in:
Werner Almesberger
parent
fe2720e63a
commit
28e7f25585
@ -11,7 +11,8 @@
|
||||
#
|
||||
|
||||
|
||||
DIRS=atrf-id atrf-reset atrf-rssi atrf-trim atrf-txrx
|
||||
DIRS=atrf-id atrf-reset atrf-rssi atrf-trim atrf-txrx \
|
||||
atrf-xtal
|
||||
TARGET_ONLY_DIRS=lib
|
||||
|
||||
ifeq ($(TARGET),ben_jlime)
|
||||
|
||||
44
tools/atrf-xtal/Makefile
Normal file
44
tools/atrf-xtal/Makefile
Normal file
@ -0,0 +1,44 @@
|
||||
#
|
||||
# atrf-xtal/Makefile - Build the crystal diagnostic utility
|
||||
#
|
||||
# Written 2010, 2011 by Werner Almesberger
|
||||
# Copyright 2010, 2011 Werner Almesberger
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 2 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
|
||||
|
||||
ifeq ($(TARGET),)
|
||||
TARGET = host
|
||||
endif
|
||||
|
||||
ifeq ($(TARGET),host)
|
||||
|
||||
.PHONY: all install uninstall clean spotless
|
||||
|
||||
all:
|
||||
|
||||
install:
|
||||
|
||||
uninstall:
|
||||
|
||||
clean:
|
||||
|
||||
spotless:
|
||||
|
||||
else
|
||||
|
||||
MAIN = atrf-xtal
|
||||
|
||||
include ../Makefile.common
|
||||
|
||||
CFLAGS += -O9
|
||||
|
||||
OBJS_$(TARGET) = atben.o
|
||||
|
||||
$(MAIN): $(OBJS_$(TARGET))
|
||||
|
||||
endif
|
||||
142
tools/atrf-xtal/atben.c
Normal file
142
tools/atrf-xtal/atben.c
Normal file
@ -0,0 +1,142 @@
|
||||
/*
|
||||
* atrf-xtal/atben.c - ATBEN-specific low-level driver
|
||||
*
|
||||
* Written 2011 by Werner Almesberger
|
||||
* Copyright 2011 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.
|
||||
*/
|
||||
|
||||
/*
|
||||
* WARNING: this program does very nasty things to the Ben and it doesn't
|
||||
* like company. In particular, it resents:
|
||||
*
|
||||
* - the MMC driver - disable it with
|
||||
* echo jz4740-mmc.0 >/sys/bus/platform/drivers/jz4740-mmc/unbind
|
||||
* - the AT86RF230/1 kernel driver - use a kernel that doesn't have it
|
||||
* - anything that accesses the screen - kill GUI, X server, etc.
|
||||
* - the screen blanker - either disable it or make sure the screen stays
|
||||
* dark, e.g., with
|
||||
* echo 1 >/sys/devices/platform/jz4740-fb/graphics/fb0/blank
|
||||
* - probably a fair number of other daemons and things as well - best to
|
||||
* kill them all.
|
||||
*/
|
||||
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/mman.h>
|
||||
|
||||
#include "at86rf230.h"
|
||||
#include "atrf.h"
|
||||
|
||||
#include "atrf-xtal.h"
|
||||
|
||||
|
||||
#define MAX_COUNT (1000*1000)
|
||||
|
||||
|
||||
static volatile void *base;
|
||||
static volatile uint32_t *clkgr;
|
||||
static uint32_t old_clkgr;
|
||||
|
||||
|
||||
void atben_setup(struct atrf_dsc *dsc, int size, int trim)
|
||||
{
|
||||
static uint8_t buf[127];
|
||||
|
||||
atrf_reset_rf(dsc);
|
||||
atrf_reg_write(dsc, REG_TRX_STATE, TRX_CMD_TRX_OFF);
|
||||
|
||||
atrf_reg_write(dsc, REG_XOSC_CTRL,
|
||||
(XTAL_MODE_INT << XTAL_MODE_SHIFT) | trim);
|
||||
|
||||
/* minimum TX power, maximize delays, disable CRC */
|
||||
switch (atrf_identify(dsc)) {
|
||||
case artf_at86rf230:
|
||||
atrf_reg_write(dsc, REG_PHY_TX_PWR, 0xf);
|
||||
break;
|
||||
case artf_at86rf231:
|
||||
atrf_reg_write(dsc, REG_PHY_TX_PWR, 0xff);
|
||||
atrf_reg_write(dsc, REG_TRX_CTRL_1, 0);
|
||||
break;
|
||||
default:
|
||||
abort();
|
||||
}
|
||||
|
||||
atrf_reg_write(dsc, REG_TRX_STATE, TRX_CMD_PLL_ON);
|
||||
usleep(200); /* nominally 180 us worst-case */
|
||||
|
||||
atrf_buf_write(dsc, buf, size);
|
||||
|
||||
//atrf_reg_write(dsc, REG_IRQ_MASK, IRQ_TRX_END);
|
||||
atrf_reg_write(dsc, REG_IRQ_MASK, 0xff);
|
||||
|
||||
mlockall(MCL_CURRENT);
|
||||
|
||||
struct atrf_dsc {
|
||||
void *driver;
|
||||
void *handle;
|
||||
int chip_id;
|
||||
};
|
||||
struct atben_dsc {
|
||||
int fd;
|
||||
void *mem;
|
||||
};
|
||||
|
||||
base = ((struct atben_dsc *) ((struct atrf_dsc *) dsc)->handle)->mem;
|
||||
clkgr = base+0x20;
|
||||
|
||||
old_clkgr = *clkgr;
|
||||
*clkgr = old_clkgr | 1 << 10;
|
||||
}
|
||||
|
||||
|
||||
unsigned atben_sample(struct atrf_dsc *dsc)
|
||||
{
|
||||
unsigned i = MAX_COUNT;
|
||||
|
||||
(void) atrf_reg_read(dsc, REG_IRQ_STATUS);
|
||||
#if 0
|
||||
while (i) {
|
||||
if (atrf_interrupt(dsc))
|
||||
break;
|
||||
i--;
|
||||
}
|
||||
#else
|
||||
volatile uint32_t *pdpin = base+0x10300;
|
||||
volatile uint32_t *pddats = base+0x10314;
|
||||
volatile uint32_t *pddatc = base+0x10318;
|
||||
volatile uint32_t *icmr = base+0x1004;
|
||||
volatile uint32_t *icmsr = base+0x1008;
|
||||
volatile uint32_t *icmcr = base+0x100c;
|
||||
#if 0
|
||||
atrf_slp_tr(dsc, 1);
|
||||
while (i) {
|
||||
if (*pdpin & 0x1000)
|
||||
break;
|
||||
i--;
|
||||
}
|
||||
atrf_slp_tr(dsc, 0);
|
||||
#endif
|
||||
uint32_t old_icmr = *icmr;
|
||||
*icmsr = 0xffffffff;
|
||||
|
||||
*pddats = 1 << 9;
|
||||
*pddatc = 1 << 9;
|
||||
do i--;
|
||||
while (!(*pdpin & 0x1000));
|
||||
|
||||
*icmcr = ~old_icmr;
|
||||
#endif
|
||||
return MAX_COUNT-i;
|
||||
}
|
||||
|
||||
|
||||
void atben_cleanup(struct atrf_dsc *dsc)
|
||||
{
|
||||
*clkgr = old_clkgr;
|
||||
}
|
||||
170
tools/atrf-xtal/atrf-xtal.c
Normal file
170
tools/atrf-xtal/atrf-xtal.c
Normal file
@ -0,0 +1,170 @@
|
||||
/*
|
||||
* atrf-xtal/atrf-xtal.c - AT86RF230/1 crystal diagnostic utility
|
||||
*
|
||||
* Written 2011 by Werner Almesberger
|
||||
* Copyright 2011 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 <unistd.h>
|
||||
|
||||
#include "atrf.h"
|
||||
|
||||
#include "atrf-xtal.h"
|
||||
|
||||
|
||||
#define DEFAULT_SIZE 127
|
||||
#define DEFAULT_TRIM 8
|
||||
|
||||
|
||||
static void setup(struct atrf_dsc *dsc, int size, int trim)
|
||||
{
|
||||
#ifdef __mips__
|
||||
atben_setup(dsc, size, trim);
|
||||
#else
|
||||
#error Only ATBEN is supported for now
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
unsigned sample(struct atrf_dsc *dsc)
|
||||
{
|
||||
#ifdef __mips__
|
||||
return atben_sample(dsc);
|
||||
#else
|
||||
#error Only ATBEN is supported for now
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
void cleanup(struct atrf_dsc *dsc)
|
||||
{
|
||||
#ifdef __mips__
|
||||
atben_cleanup(dsc);
|
||||
#else
|
||||
#error Only ATBEN is supported for now
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
static int cmp(const void *a, const void *b)
|
||||
{
|
||||
return *(unsigned *) a-*(unsigned *) b;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void eval(unsigned *res, int rep)
|
||||
{
|
||||
double sum = 0;
|
||||
int n = 0;
|
||||
int i;
|
||||
|
||||
qsort(res, rep, sizeof(*res), cmp);
|
||||
if (rep < 8) {
|
||||
printf("%u\n", res[rep >> 1]);
|
||||
return;
|
||||
}
|
||||
for (i = rep/8; i != rep-rep/8; i++) {
|
||||
sum += res[i];
|
||||
n++;
|
||||
}
|
||||
printf("%f\n", (double) sum/n);
|
||||
}
|
||||
|
||||
|
||||
static void usage(const char *name)
|
||||
{
|
||||
fprintf(stderr,
|
||||
"%s [-d] [-s size] [-t trim] [repetitions]\n"
|
||||
" -d instead of printing a mean value, dump all samples\n"
|
||||
" -s size payload size in bytes, 0-127 (default: %d bytes)\n"
|
||||
" -t trim trim capacitor setting, 0-15 (default: %d)\n"
|
||||
" repetitions number of measurements (default: 1)\n"
|
||||
, name, DEFAULT_SIZE, DEFAULT_TRIM);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
|
||||
int main(int argc, char *const *argv)
|
||||
{
|
||||
struct atrf_dsc *dsc;
|
||||
int size = DEFAULT_SIZE;
|
||||
int trim = DEFAULT_TRIM;
|
||||
int rep = 1;
|
||||
int dump = 0;
|
||||
char *end;
|
||||
unsigned *res;
|
||||
int c, i;
|
||||
|
||||
while ((c = getopt(argc, argv, "ds:t:")) != EOF)
|
||||
switch (c) {
|
||||
case 'd':
|
||||
dump = 1;
|
||||
break;
|
||||
case 's':
|
||||
size = strtoul(optarg, &end, 0);
|
||||
if (*end)
|
||||
usage(*argv);
|
||||
if (size > 127)
|
||||
usage(*argv);
|
||||
break;
|
||||
case 't':
|
||||
trim = strtoul(optarg, &end, 0);
|
||||
if (*end)
|
||||
usage(*argv);
|
||||
if (trim > 15)
|
||||
usage(*argv);
|
||||
break;
|
||||
default:
|
||||
usage(*argv);
|
||||
}
|
||||
|
||||
switch (argc-optind) {
|
||||
case 0:
|
||||
break;
|
||||
case 1:
|
||||
rep = strtoul(argv[optind], &end, 0);
|
||||
if (*end)
|
||||
usage(*argv);
|
||||
break;
|
||||
default:
|
||||
usage(*argv);
|
||||
}
|
||||
|
||||
res = malloc(rep*sizeof(*res));
|
||||
if (!res) {
|
||||
perror("malloc");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
dsc = atrf_open();
|
||||
if (!dsc)
|
||||
return 1;
|
||||
|
||||
setup(dsc, size, trim);
|
||||
|
||||
for (i = 0; i != rep; i++)
|
||||
res[i] = sample(dsc);
|
||||
|
||||
cleanup(dsc);
|
||||
|
||||
atrf_close(dsc);
|
||||
|
||||
if (dump) {
|
||||
for (i = 0; i != rep; i++)
|
||||
printf("%u\n", res[i]);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
eval(res, rep);
|
||||
|
||||
return 0;
|
||||
}
|
||||
24
tools/atrf-xtal/atrf-xtal.h
Normal file
24
tools/atrf-xtal/atrf-xtal.h
Normal file
@ -0,0 +1,24 @@
|
||||
/*
|
||||
* atrf-xtal/atrf-xtal.h - AT86RF230/1 crystal diagnostic utility
|
||||
*
|
||||
* Written 2011 by Werner Almesberger
|
||||
* Copyright 2011 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.
|
||||
*/
|
||||
|
||||
|
||||
#ifndef ATRF_XTAL_H
|
||||
#define ATRF_XTAL_H
|
||||
|
||||
#include "atrf.h"
|
||||
|
||||
|
||||
void atben_setup(struct atrf_dsc *dsc, int size, int trim);
|
||||
unsigned atben_sample(struct atrf_dsc *dsc);
|
||||
void atben_cleanup(struct atrf_dsc *dsc);
|
||||
|
||||
#endif /* !ATRF_XTAL_H */
|
||||
Loading…
Reference in New Issue
Block a user