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ben-wpan/tools/atrf-gpio/atrf-gpio.c
Werner Almesberger 8f20b1fb87 atrf-gpio: cleaned up usage
- atrf-gpio.c (usage): added newline after synopsis
- atrf-gpio.c (usage): description of option -p was missing
- atrf-gpio.c (main): invocation without patterns/commands is now an
  error
2011-06-06 19:42:31 -03:00

346 lines
6.7 KiB
C

/*
* atrf-gpio/atrf-gpio.c - ATBEN/ATUSB GPIO test
*
* 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 <string.h>
#include <termios.h>
#include <fcntl.h>
#include <errno.h>
#include "at86rf230.h"
#include "atrf.h"
#include "atrf-gpio.h"
#define DEFAULT_DELAY_MS 10
/* ----- Board-specific drivers -------------------------------------------- */
static void atben(struct atrf_dsc *dsc, const char *pattern, const char *next)
{
#ifdef HAVE_ATBEN
do_atben(dsc, pattern, next);
#else
fprintf(stderr, "not compiled with ATBEN support\n");
exit(1);
#endif
}
static void atusb(struct atrf_dsc *dsc, const char *pattern, const char *next)
{
#ifdef HAVE_ATUSB
do_atusb(dsc, pattern, next);
#else
fprintf(stderr, "not compiled with ATUSB support\n");
exit(1);
#endif
}
/* ----- Commands ---------------------------------------------------------- */
static void bad_command(const char *arg)
{
fprintf(stderr, "invalid command \"%s\"\n", arg);
exit(1);
}
static int command(struct atrf_dsc *dsc, const char *arg, int doit)
{
const char *p;
char *end;
unsigned long reg, value, mask = 0xff;
uint8_t got;
if (!strcmp(arg, "delay")) {
if (doit)
usleep(DEFAULT_DELAY_MS*1000);
return 1;
}
if (!strncmp(arg, "delay=", 6)) {
value = strtoul(arg+6, &end, 0);
if (!value || *end)
bad_command(arg);
if (doit)
usleep(value*1000);
return 1;
}
if (!strcmp(arg, "frame")) {
if (doit)
atrf_buf_write(dsc, "", 1);
return 1;
}
if (!strcmp(arg, "reset")) {
if (doit)
atrf_reset_rf(dsc);
return 1;
}
if (!strcmp(arg, "slp_tr")) {
if (doit)
atrf_slp_tr(dsc, 1, 1);
return 1;
}
p = strchr(arg, '=');
if (!p)
p = strchr(arg, ':');
if (!p)
p = strchr(arg, '!');
if (!p)
p = strchr(arg, '/');
if (!p)
return 0;
reg = strtoul(arg, &end, 0);
if (end != p || reg > 0xff)
bad_command(arg);
value = strtoul(p+1, &end, 0);
if (value > 0xff)
bad_command(arg);
if (*end) {
if (*p != ':')
bad_command(arg);
if (*end != '/')
bad_command(arg);
mask = strtoul(end+1, &end, 0);
if (*end || mask > 0xff)
bad_command(arg);
}
if (!doit)
return 1;
switch (*p) {
case '=':
atrf_reg_write(dsc, reg, value);
break;
case ':':
got = atrf_reg_read(dsc, reg);
if (end != p+1 && ((got ^ value) & mask)) {
fprintf(stderr,
"register 0x%02lx: got 0x%02x expected "
"0x%02lx/0x%02lx\n", reg, got, value, mask);
exit(1);
}
break;
case '!':
atrf_sram_write(dsc, reg, value);
break;
case '/':
got = atrf_sram_read(dsc, reg);
if (got != value) {
fprintf(stderr,
"got 0x%02x expected 0x%02lx\n", got, value);
exit(1);
}
break;
default:
abort();
}
return 1;
}
/* ----- Pass/Fail/Quit input ---------------------------------------------- */
static struct termios old_term;
static void restore_term(void)
{
if (tcsetattr(0, TCSAFLUSH, &old_term) < 0)
perror("tcsetattr");
}
static void raw(void)
{
struct termios term;
if (tcgetattr(0, &old_term) < 0) {
perror("tcgetattr");
exit(1);
}
term = old_term;
cfmakeraw(&term);
if (tcsetattr(0, TCSAFLUSH, &term) < 0) {
perror("tcsetattr");
exit(1);
}
atexit(restore_term);
if (fcntl(0, F_SETFL, O_NONBLOCK) < 0) {
perror("fcntl");
exit(1);
}
}
static void pass_fail(void)
{
ssize_t got;
char ch;
got = read(0, &ch, 1);
if (got < 0) {
if (errno == EAGAIN)
return;
perror("read");
exit(1);
}
switch (ch) {
case 'P':
case 'p':
exit(0);
case 'F':
case 'f':
case 'Q':
case 'q':
case 3: /* Ctrl-C */
exit(1);
default:
break;
}
}
/* ----- Command line processing and main loop ----------------------------- */
static void usage(const char *name)
{
fprintf(stderr,
"usage: %s [-c] [-d driver[:arg]] [-p] command|pattern ...\n\n"
" -c cycle, waiting for Pass/Fail/Quit input\n"
" -d driver[:arg] use the specified driver (default: %s)\n"
" -p stay in P_ON state instead of entering TRX_OFF\n\n"
" command is one of:\n"
" reg=value set transceiver register\n"
" reg:[value[/mask]]\n"
" read transceiver register and (optionally) verify value\n"
" addr!value write one byte to SRAM\n"
" addr/value read and verify one byte from SRAM\n"
" delay[=ms] wait the specified number of milliseconds (default: %d ms)\n"
" frame write a one-byte frame to the frame buffer\n"
" reset reset the transceiver\n"
" slp_tr pulse SLP_TR\n"
" #... comment\n\n"
" pattern is a sequence of the following characters:\n"
" 0 = output a strong 0 1 = output a strong 1\n"
" L = pull up, expect to read 0 H = pull up, expect to read 1\n"
" l/o = no pull-up, expect to read 0 h = no pull-up, expect to read 1\n"
" Z = pull up, don't read z = no pull-up, don't read\n"
" x = don't care . = separator\n"
, name, atrf_default_driver_name(), DEFAULT_DELAY_MS);
exit(1);
}
/*
* 0 strong 0 out
* 1 strong 1 out
* H pull-up, read 1
* L pull-up, read 0
* h no pull-up, read 1
* l/o no pull-up, read 0
* Z pull-up, don't read
* z no pull-up, don't read
* x don't care
* . separator
*/
int main(int argc, char *const *argv)
{
const char *driver = NULL;
struct atrf_dsc *dsc;
int cycle = 0;
int trx_off = 1;
int c, i;
const char *s;
while ((c = getopt(argc, argv, "cd:p")) != EOF)
switch (c) {
case 'c':
cycle = 1;
break;
case 'd':
driver = optarg;
break;
case 'p':
trx_off = 0;
break;
default:
usage(*argv);
}
if (optind == argc)
usage(*argv);
for (i = optind; i != argc; i++) {
if (*argv[i] == '#')
continue;
if (command(NULL, argv[i], 0))
continue;
for (s = argv[i]; *s; s++)
if (!strchr("01HLhloZzx.", *s))
fprintf(stderr,
"invalid configuration '%c' in \"%s\"\n",
*s, argv[i]);
}
dsc = atrf_open(driver);
if (!dsc)
return 1;
atrf_reset_rf(dsc);
if (trx_off) {
atrf_reg_write(dsc, REG_TRX_STATE, TRX_CMD_TRX_OFF);
do usleep(100);
while ((atrf_reg_read(dsc, REG_TRX_STATUS) & TRX_STATUS_MASK)
!= TRX_STATUS_TRX_OFF);
}
if (cycle)
raw();
while (1) {
for (i = optind; i != argc; i++) {
if (*argv[i] == '#')
continue;
if (command(dsc, argv[i], 1))
continue;
if (atrf_usb_handle(dsc))
atusb(dsc, argv[i], argv[i+1]);
else
atben(dsc, argv[i], argv[i+1]);
}
if (cycle)
pass_fail();
else
break;
}
// atrf_close(dsc);
return 0;
}