修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/tools/testing/selftests/watchdog/watchdog-test.c
..
..
@@ -19,7 +19,7 @@
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19
 
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 int fd;
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 const char v = 'V';
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-static const char sopts[] = "bdehp:t:";
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+static const char sopts[] = "bdehp:t:Tn:NLf:i";
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 static const struct option lopts[] = {
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 	{"bootstatus",          no_argument, NULL, 'b'},
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 	{"disable",             no_argument, NULL, 'd'},
..
..
@@ -27,6 +27,12 @@
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 	{"help",                no_argument, NULL, 'h'},
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 	{"pingrate",      required_argument, NULL, 'p'},
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 	{"timeout",       required_argument, NULL, 't'},
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+	{"gettimeout",          no_argument, NULL, 'T'},
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+	{"pretimeout",    required_argument, NULL, 'n'},
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+	{"getpretimeout",       no_argument, NULL, 'N'},
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+	{"gettimeleft",		no_argument, NULL, 'L'},
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+	{"file",          required_argument, NULL, 'f'},
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+	{"info",		no_argument, NULL, 'i'},
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 	{NULL,                  no_argument, NULL, 0x0}
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 };
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..
..
@@ -65,15 +71,24 @@
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 static void usage(char *progname)
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 {
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 	printf("Usage: %s [options]\n", progname);
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-	printf(" -b, --bootstatus    Get last boot status (Watchdog/POR)\n");
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-	printf(" -d, --disable       Turn off the watchdog timer\n");
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-	printf(" -e, --enable        Turn on the watchdog timer\n");
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-	printf(" -h, --help          Print the help message\n");
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-	printf(" -p, --pingrate=P    Set ping rate to P seconds (default %d)\n", DEFAULT_PING_RATE);
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-	printf(" -t, --timeout=T     Set timeout to T seconds\n");
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+	printf(" -f, --file\t\tOpen watchdog device file\n");
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+	printf("\t\t\tDefault is /dev/watchdog\n");
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+	printf(" -i, --info\t\tShow watchdog_info\n");
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+	printf(" -b, --bootstatus\tGet last boot status (Watchdog/POR)\n");
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+	printf(" -d, --disable\t\tTurn off the watchdog timer\n");
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+	printf(" -e, --enable\t\tTurn on the watchdog timer\n");
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+	printf(" -h, --help\t\tPrint the help message\n");
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+	printf(" -p, --pingrate=P\tSet ping rate to P seconds (default %d)\n",
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+	       DEFAULT_PING_RATE);
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+	printf(" -t, --timeout=T\tSet timeout to T seconds\n");
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+	printf(" -T, --gettimeout\tGet the timeout\n");
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+	printf(" -n, --pretimeout=T\tSet the pretimeout to T seconds\n");
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+	printf(" -N, --getpretimeout\tGet the pretimeout\n");
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+	printf(" -L, --gettimeleft\tGet the time left until timer expires\n");
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 	printf("\n");
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 	printf("Parameters are parsed left-to-right in real-time.\n");
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 	printf("Example: %s -d -t 10 -p 5 -e\n", progname);
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+	printf("Example: %s -t 12 -T -n 7 -N\n", progname);
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 }
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93
 
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 int main(int argc, char *argv[])
..
..
@@ -83,14 +98,21 @@
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 	int ret;
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 	int c;
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 	int oneshot = 0;
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+	char *file = "/dev/watchdog";
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+	struct watchdog_info info;
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 	setbuf(stdout, NULL);
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105
 
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-	fd = open("/dev/watchdog", O_WRONLY);
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+	while ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
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+		if (c == 'f')
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+			file = optarg;
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+	}
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+
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+	fd = open(file, O_WRONLY);
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 	if (fd == -1) {
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 		if (errno == ENOENT)
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-			printf("Watchdog device not enabled.\n");
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+			printf("Watchdog device (%s) not found.\n", file);
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 		else if (errno == EACCES)
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 			printf("Run watchdog as root.\n");
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 		else
..
..
@@ -98,6 +120,18 @@
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 				strerror(errno));
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 		exit(-1);
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 	}
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+
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+	/*
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+	 * Validate that `file` is a watchdog device
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+	 */
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+	ret = ioctl(fd, WDIOC_GETSUPPORT, &info);
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+	if (ret) {
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+		printf("WDIOC_GETSUPPORT error '%s'\n", strerror(errno));
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+		close(fd);
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+		exit(ret);
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+	}
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+
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+	optind = 0;
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 	while ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
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 		switch (c) {
..
..
@@ -116,16 +150,20 @@
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 			ret = ioctl(fd, WDIOC_SETOPTIONS, &flags);
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 			if (!ret)
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 				printf("Watchdog card disabled.\n");
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-			else
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+			else {
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 				printf("WDIOS_DISABLECARD error '%s'\n", strerror(errno));
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+				oneshot = 1;
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+			}
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 			break;
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 		case 'e':
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 			flags = WDIOS_ENABLECARD;
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 			ret = ioctl(fd, WDIOC_SETOPTIONS, &flags);
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 			if (!ret)
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 				printf("Watchdog card enabled.\n");
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-			else
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+			else {
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 				printf("WDIOS_ENABLECARD error '%s'\n", strerror(errno));
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+				oneshot = 1;
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+			}
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 			break;
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 		case 'p':
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 			ping_rate = strtoul(optarg, NULL, 0);
..
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@@ -138,9 +176,61 @@
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 			ret = ioctl(fd, WDIOC_SETTIMEOUT, &flags);
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 			if (!ret)
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 				printf("Watchdog timeout set to %u seconds.\n", flags);
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-			else
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+			else {
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 				printf("WDIOC_SETTIMEOUT error '%s'\n", strerror(errno));
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+				oneshot = 1;
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+			}
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 			break;
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+		case 'T':
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+			oneshot = 1;
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+			ret = ioctl(fd, WDIOC_GETTIMEOUT, &flags);
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+			if (!ret)
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+				printf("WDIOC_GETTIMEOUT returns %u seconds.\n", flags);
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+			else
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+				printf("WDIOC_GETTIMEOUT error '%s'\n", strerror(errno));
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+			break;
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+		case 'n':
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+			flags = strtoul(optarg, NULL, 0);
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+			ret = ioctl(fd, WDIOC_SETPRETIMEOUT, &flags);
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+			if (!ret)
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+				printf("Watchdog pretimeout set to %u seconds.\n", flags);
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+			else {
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+				printf("WDIOC_SETPRETIMEOUT error '%s'\n", strerror(errno));
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+				oneshot = 1;
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+			}
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+			break;
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+		case 'N':
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+			oneshot = 1;
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+			ret = ioctl(fd, WDIOC_GETPRETIMEOUT, &flags);
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+			if (!ret)
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+				printf("WDIOC_GETPRETIMEOUT returns %u seconds.\n", flags);
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+			else
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+				printf("WDIOC_GETPRETIMEOUT error '%s'\n", strerror(errno));
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+			break;
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+		case 'L':
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+			oneshot = 1;
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+			ret = ioctl(fd, WDIOC_GETTIMELEFT, &flags);
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+			if (!ret)
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+				printf("WDIOC_GETTIMELEFT returns %u seconds.\n", flags);
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+			else
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+				printf("WDIOC_GETTIMELEFT error '%s'\n", strerror(errno));
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+			break;
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+		case 'f':
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+			/* Handled above */
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+			break;
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+		case 'i':
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+			/*
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+			 * watchdog_info was obtained as part of file open
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+			 * validation. So we just show it here.
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+			 */
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+			oneshot = 1;
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+			printf("watchdog_info:\n");
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+			printf(" identity:\t\t%s\n", info.identity);
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+			printf(" firmware_version:\t%u\n",
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+			       info.firmware_version);
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+			printf(" options:\t\t%08x\n", info.options);
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+			break;
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+
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 		default:
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 			usage(argv[0]);
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 			goto end;