diff options
Diffstat (limited to 'ao-tools/ao-cal-accel/ao-cal-accel.c')
| -rw-r--r-- | ao-tools/ao-cal-accel/ao-cal-accel.c | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/ao-tools/ao-cal-accel/ao-cal-accel.c b/ao-tools/ao-cal-accel/ao-cal-accel.c new file mode 100644 index 00000000..9a988648 --- /dev/null +++ b/ao-tools/ao-cal-accel/ao-cal-accel.c @@ -0,0 +1,284 @@ +/* + * Copyright © 2014 Keith Packard <keithp@keithp.com> + * + * 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; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include <err.h> +#include <fcntl.h> +#include <gelf.h> +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <sysexits.h> +#include <unistd.h> +#include <getopt.h> +#include <string.h> +#include <stdbool.h> +#include <termios.h> +#include "ao-elf.h" +#include "ccdbg.h" +#include "cc-usb.h" +#include "cc.h" +#include "ao-verbose.h" + +static const struct option options[] = { + { .name = "tty", .has_arg = 1, .val = 'T' }, + { .name = "device", .has_arg = 1, .val = 'D' }, + { .name = "raw", .has_arg = 0, .val = 'r' }, + { .name = "verbose", .has_arg = 1, .val = 'v' }, + { 0, 0, 0, 0}, +}; + +static void usage(char *program) +{ + fprintf(stderr, "usage: %s [--verbose=<verbose>] [--device=<device>] [-tty=<tty>]\n", program); + exit(1); +} + +void +done(struct cc_usb *cc, int code) +{ + cc_usb_close(cc); + exit (code); +} + +static int +ends_with(char *whole, char *suffix) +{ + int whole_len = strlen(whole); + int suffix_len = strlen(suffix); + + if (suffix_len > whole_len) + return 0; + return strcmp(whole + whole_len - suffix_len, suffix) == 0; +} + +static int +starts_with(char *whole, char *prefix) +{ + int whole_len = strlen(whole); + int prefix_len = strlen(prefix); + + if (prefix_len > whole_len) + return 0; + return strncmp(whole, prefix, prefix_len) == 0; +} + +static char ** +tok(char *line) { + char **strs = malloc (sizeof (char *)), *str; + int n = 0; + + while ((str = strtok(line, " \t"))) { + line = NULL; + strs = realloc(strs, (n + 2) * sizeof (char *)); + strs[n] = strdup(str); + n++; + } + strs[n] = '\0'; + return strs; +} + +static void +free_strs(char **strs) { + char *str; + int i; + + for (i = 0; (str = strs[i]) != NULL; i++) + free(str); + free(strs); +} + +struct flash { + struct flash *next; + char line[512]; + char **strs; +}; + +static struct flash * +flash(struct cc_usb *usb) +{ + struct flash *head = NULL, **tail = &head; + cc_usb_printf(usb, "c s\nv\n"); + for (;;) { + char line[512]; + struct flash *b; + + cc_usb_getline(usb, line, sizeof (line)); + b = malloc (sizeof (struct flash)); + strcpy(b->line, line); + b->strs = tok(line); + b->next = NULL; + *tail = b; + tail = &b->next; + if (strstr(line, "software-version")) + break; + } + return head; +} + +static void +free_flash(struct flash *b) { + struct flash *n; + + while (b) { + n = b->next; + free_strs(b->strs); + free(b); + b = n; + } +} + +char ** +find_flash(struct flash *b, char *word0) { + int i; + for (;b; b = b->next) { + if (strstr(b->line, word0)) + return b->strs; + } + return NULL; +} + +void +await_key(void) +{ + struct termios termios, termios_save; + char buf[512]; + + tcgetattr(0, &termios); + termios_save = termios; + cfmakeraw(&termios); + tcsetattr(0, TCSAFLUSH, &termios); + read(0, buf, sizeof (buf)); + tcsetattr(0, TCSAFLUSH, &termios_save); +} + +int +do_cal(struct cc_usb *usb) { + struct flash *b; + char **accel; + char line[1024]; + int l; + int running = 0; + int worked = 1; + + cc_usb_printf(usb, "E 1\nc a 0\n"); + + for (;;) { + int c = cc_usb_getchar_timeout(usb, 20*1000); + + if (c == '\n') + l = 0; + else if (l < sizeof (line) - 1) + line[l++] = c; + line[l] = '\0'; + putchar(c); fflush(stdout); + if (strstr(line, "press a key...")) { + await_key(); + cc_usb_printf(usb, " "); + l = 0; + running = 1; + } + else if (strstr(line, "Invalid")) + worked = 0; + if (running && strstr(line, ">")) { + printf("\n"); + break; + } + } + cc_usb_printf(usb, "E 0\n"); + + if (!worked) { + printf("Calibration failed\n"); + return 0; + } + + b = flash(usb); + + accel = find_flash(b, "Accel cal"); + if (!accel) { + printf("no response\n"); + return 0; + } + + printf ("Accel cal +1g: %s -1g: %s\n", + accel[3], accel[5]); + + printf ("Saving..."); fflush(stdout); + cc_usb_printf (usb, "c w\n"); + cc_usb_sync(usb); + b = flash(usb); + printf ("done\n"); + + return worked; +} + +int +main (int argc, char **argv) +{ + char *device = NULL; + char *filename; + Elf *e; + unsigned int s; + int i; + int c; + int tries; + struct cc_usb *cc = NULL; + char *tty = NULL; + int success; + int verbose = 0; + int ret = 0; + int expected_size; + + while ((c = getopt_long(argc, argv, "rT:D:c:s:v:", options, NULL)) != -1) { + switch (c) { + case 'T': + tty = optarg; + break; + case 'D': + device = optarg; + break; + case 'v': + verbose++; + break; + default: + usage(argv[0]); + break; + } + } + + ao_verbose = verbose; + + if (verbose > 1) + ccdbg_add_debug(CC_DEBUG_BITBANG); + + if (!tty) + tty = cc_usbdevs_find_by_arg(device, "AltosFlash"); + if (!tty) + tty = cc_usbdevs_find_by_arg(device, "TeleMega"); + if (!tty) + tty = getenv("ALTOS_TTY"); + if (!tty) + tty="/dev/ttyACM0"; + + cc = cc_usb_open(tty); + + if (!cc) + exit(1); + + if (!do_cal(cc)) + ret = 1; + done(cc, ret); +} |