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-rw-r--r--extras/modem-modeswitch/modem-modeswitch.c266
1 files changed, 266 insertions, 0 deletions
diff --git a/extras/modem-modeswitch/modem-modeswitch.c b/extras/modem-modeswitch/modem-modeswitch.c
new file mode 100644
index 0000000000..a60ce7a41c
--- /dev/null
+++ b/extras/modem-modeswitch/modem-modeswitch.c
@@ -0,0 +1,266 @@
+/*
+ * Modem mode switcher
+ *
+ * Copyright (C) 2008 Dan Williams <dcbw@redhat.com>
+ * Copyright (C) 2008 Peter Henn <support@option.com>
+ *
+ * Heavily based on the 'ozerocdoff' tool by Peter Henn.
+ *
+ * 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.
+ *
+ * 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:
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <getopt.h>
+
+#include <usb.h>
+
+#include "utils.h"
+
+#include "ma8280p_us.h"
+#include "option.h"
+
+struct usb_dev_handle *handle = NULL;
+
+typedef struct usb_device * (*FindFunc) (int vid, int pid);
+typedef int (*SwitchFunc) (struct usb_dev_handle *dh, struct usb_device *dev);
+
+typedef enum {
+ ST_UNKNOWN = 0,
+ ST_OPTION_ZEROCD,
+ ST_MA8280P
+} SwitchType;
+
+typedef struct SwitchEntry {
+ SwitchType st;
+ const char *clopt;
+ FindFunc find_func;
+ SwitchFunc switch_func;
+} SwitchEntry;
+
+static SwitchEntry switch_types[] = {
+ { ST_OPTION_ZEROCD, "option-zerocd", option_zerocd_find, option_zerocd_switch },
+ { ST_MA8280P, "mobile-action-8280p", NULL, ma8280p_switch },
+ { ST_UNKNOWN, NULL, NULL }
+};
+
+static struct usb_device *
+generic_find (int vid, int pid)
+{
+ struct usb_bus *bus;
+ struct usb_device *dev;
+
+ for (bus = usb_get_busses(); bus; bus = bus->next) {
+ for (dev = bus->devices; dev; dev = dev->next) {
+ if (dev->descriptor.idVendor == vid && dev->descriptor.idProduct == pid) {
+ debug ("Found device '%s'", dev->filename);
+ return dev;
+ }
+ }
+ }
+ return NULL;
+}
+
+static void
+release_usb_device (int param)
+{
+ usb_release_interface (handle, 0);
+ usb_close (handle);
+}
+
+static void
+print_usage (void)
+{
+ printf ("Usage: modem-modeswitch [-hdq] [-l <file>] -v <vendor-id> -p <product-id> -t <type>\n"
+ " -h, --help show this help message\n"
+ " -v, --vendor <n> target USB vendor ID\n"
+ " -p, --product <n> target USB product ID\n"
+ " -t, --type <type> type of switch to attempt, varies by device:\n"
+ " option-zerocd - For many newer Option N.V. devices\n"
+ " mobile-action-8280p - For Mobile Action 8xxxP USB cables\n"
+ " -l, --log <file> log output to a file\n"
+ " -q, --quiet don't print anything to stdout\n"
+ " -d, --debug display debugging messages\n\n"
+ "Examples:\n"
+ " modem-modeswitch -v 0x0af0 -p 0xc031 -t option-zerocd\n");
+}
+
+static SwitchEntry *
+parse_type (const char *s)
+{
+ SwitchEntry *entry = &switch_types[0];
+
+ while (entry->clopt) {
+ if (!strcmp (entry->clopt, s))
+ return entry;
+ entry++;
+ }
+
+ return NULL;
+}
+
+static void
+do_exit (int val)
+{
+ log_shutdown ();
+ exit (val);
+}
+
+int main(int argc, char **argv)
+{
+ static struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "vendor", required_argument, NULL, 'v' },
+ { "product", required_argument, NULL, 'p' },
+ { "type", required_argument, NULL, 't' },
+ { "log", required_argument, NULL, 'l' },
+ { "debug", no_argument, NULL, 'd' },
+ { "quiet", no_argument, NULL, 'q' },
+ { NULL, 0, NULL, 0}
+ };
+
+ struct usb_device *dev;
+ int vid = 0, pid = 0;
+ const char *logpath = NULL;
+ char buffer[256];
+ int ret, quiet = 0, debug = 0;
+ SwitchEntry *sentry = NULL;
+
+ while (1) {
+ int option;
+
+ option = getopt_long(argc, argv, "hv:p:l:t:dq", options, NULL);
+ if (option == -1)
+ break;
+
+ switch (option) {
+ case 'v':
+ vid = strtol (optarg, NULL, 0);
+ break;
+ case 'p':
+ pid = strtol (optarg, NULL, 0);
+ break;
+ case 't':
+ sentry = parse_type (optarg);
+ if (!sentry) {
+ error ("unknown switch type '%s'", optarg);
+ print_usage ();
+ exit (1);
+ }
+ break;
+ case 'l':
+ logpath = optarg;
+ break;
+ case 'q':
+ quiet = 1;
+ break;
+ case 'd':
+ debug = 1;
+ break;
+ case 'h':
+ default:
+ print_usage ();
+ exit (1);
+ }
+ }
+
+ if (log_startup (logpath, debug, quiet)) {
+ fprintf (stderr, "Couldn't open/create logfile %s", logpath);
+ exit (2);
+ }
+
+ if (!sentry) {
+ if (!quiet)
+ print_usage ();
+ else
+ error ("missing device switch type.");
+ do_exit (3);
+ }
+
+ if (!vid || !pid) {
+ if (!quiet)
+ print_usage ();
+ else
+ error ("missing vendor and device IDs.");
+ do_exit (3);
+ }
+
+ usb_init();
+
+ if (usb_find_busses() < 0) {
+ error ("no USB busses found.");
+ do_exit (4);
+ }
+
+ if (usb_find_devices() < 0) {
+ error ("no USB devices found.");
+ do_exit (4);
+ }
+
+ if (sentry->find_func)
+ dev = (*sentry->find_func) (vid, pid);
+ else
+ dev = generic_find (vid, pid);
+ if (dev == NULL) {
+ error ("no device found.");
+ do_exit (5);
+ }
+
+ handle = usb_open (dev);
+ if (handle == NULL) {
+ error ("%s: could not access the device.",
+ dev->filename);
+ do_exit (6);
+ }
+
+ /* detach running default driver */
+ signal (SIGTERM, release_usb_device);
+ ret = usb_get_driver_np (handle, 0, buffer, sizeof (buffer));
+ if (ret == 0) {
+ debug ("%s: found already attached driver '%s'", dev->filename, buffer);
+
+ ret = usb_detach_kernel_driver_np (handle, 0);
+ if (ret != 0) {
+ debug ("%s: error: unable to detach current driver.", dev->filename);
+ usb_close (handle);
+ do_exit (7);
+ }
+ }
+
+ ret = usb_claim_interface (handle, 0);
+ if (ret != 0) {
+ debug ("%s: couldn't claim device's USB interface: %d.",
+ dev->filename, ret);
+ usb_close (handle);
+ do_exit (8);
+ }
+
+ ret = (*sentry->switch_func) (handle, dev);
+ if (ret < 0) {
+ debug ("%s: failed to switch device to modem mode.", dev->filename);
+ usb_release_interface (handle, 0);
+ usb_close (handle);
+ do_exit(9);
+ }
+
+ usb_release_interface (handle, 0);
+
+ ret = usb_close (handle);
+ if (ret < 0)
+ debug ("%s: failed to close the device.", dev->filename);
+
+ do_exit (0);
+ return 0;
+}
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