1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* $(CROSS_COMPILE)cc -Wall -Wextra -g -lpthread -o testusb testusb.c */
12  * kernel driver.  It can generate a variety of transfer patterns; you
16  * For more information on how this can be used and on USB testing
17  * refer to <URL:http://www.linux-usb.org/usbtest/>.
36 /*-------------------------------------------------------------------------*/
44 	unsigned		test_num;	/* 0..(TEST_CASES-1) */
55 /*-------------------------------------------------------------------------*/
105 /*-------------------------------------------------------------------------*/
116 	case USB_SPEED_SUPER_PLUS:	return "super-plus";  in speed()
134 static int testdev_ffs_ifnum(FILE *fd)  in testdev_ffs_ifnum()  argument
142 		if (fread(u.buf, 1, 1, fd) != 1)  in testdev_ffs_ifnum()
143 			return -1;  in testdev_ffs_ifnum()
144 		if (fread(u.buf + 1, (unsigned char)u.buf[0] - 1, 1, fd) != 1)  in testdev_ffs_ifnum()
145 			return -1;  in testdev_ffs_ifnum()
157 static int testdev_ifnum(FILE *fd)  in testdev_ifnum()  argument
161 	if (fread(&dev, sizeof dev, 1, fd) != 1)  in testdev_ifnum()
162 		return -1;  in testdev_ifnum()
165 		return -1;  in testdev_ifnum()
171 	/*----------------------------------------------------*/  in testdev_ifnum()
173 	/* devices that start up using the EZ-USB default device and  in testdev_ifnum()
174 	 * which we can use after loading simple firmware.  hotplug  in testdev_ifnum()
175 	 * can fxload it, and then run this test driver.  in testdev_ifnum()
178 	 * - the device has a "real" driver (maybe usb-serial) that  in testdev_ifnum()
180 	 * - the device doesn't have the test firmware installed.  in testdev_ifnum()
183 	/* generic EZ-USB FX controller */  in testdev_ifnum()
187 	/* generic EZ-USB FX2 controller */  in testdev_ifnum()
191 	/* CY3671 development board with EZ-USB FX */  in testdev_ifnum()
195 	/* Keyspan 19Qi uses an21xx (original EZ-USB) */  in testdev_ifnum()
199 	/*----------------------------------------------------*/  in testdev_ifnum()
201 	/* "gadget zero", Linux-USB test software */  in testdev_ifnum()
207 		return testdev_ffs_ifnum(fd);  in testdev_ifnum()
219 	/*----------------------------------------------------*/  in testdev_ifnum()
225 	/*----------------------------------------------------*/  in testdev_ifnum()
227 	/* the FunctionFS gadget can have the source/sink interface  in testdev_ifnum()
234 		return testdev_ffs_ifnum(fd);  in testdev_ifnum()
236 	return -1;  in testdev_ifnum()
241 	FILE				*fd;  in find_testdev()  local
250 	fd = fopen(name, "rb");  in find_testdev()
251 	if (!fd) {  in find_testdev()
256 	ifnum = testdev_ifnum(fd);  in find_testdev()
257 	fclose(fd);  in find_testdev()
265 	entry->name = strdup(name);  in find_testdev()
266 	if (!entry->name) {  in find_testdev()
273 	entry->ifnum = ifnum;  in find_testdev()
274 	entry->next = testdevs;  in find_testdev()
280 usbdev_ioctl (int fd, int ifno, unsigned request, void *param)  in usbdev_ioctl()  argument
288 	return ioctl (fd, USBDEVFS_IOCTL, &wrapper);  in usbdev_ioctl()
294 	int			fd, i;  in handle_testdev()  local
297 	if ((fd = open (dev->name, O_RDWR)) < 0) {  in handle_testdev()
298 		perror ("can't open dev file r/w");  in handle_testdev()
302 	status  =  ioctl(fd, USBDEVFS_GET_SPEED, NULL);  in handle_testdev()
306 		dev->speed = status;  in handle_testdev()
308 			speed(dev->speed), dev->name, dev->ifnum);  in handle_testdev()
312 		if (dev->test != -1 && dev->test != i)  in handle_testdev()
314 		dev->param.test_num = i;  in handle_testdev()
316 		status = usbdev_ioctl (fd, dev->ifnum,  in handle_testdev()
317 				USBTEST_REQUEST, &dev->param);  in handle_testdev()
323 		/* NOTE: each thread emits complete lines; no fragments! */  in handle_testdev()
332 			printf ("%s test %d --> %d (%s)\n",  in handle_testdev()
333 				dev->name, i, errno, buf);  in handle_testdev()
335 			printf ("%s test %d, %4d.%.06d secs\n", dev->name, i,  in handle_testdev()
336 				(int) dev->param.duration.tv_sec,  in handle_testdev()
337 				(int) dev->param.duration.tv_usec);  in handle_testdev()
341 	if (dev->forever)  in handle_testdev()
344 	close (fd);  in handle_testdev()
366 		return -1;  in parse_num()
379 	int			test = -1 /* all */;  in main()
384 	 * Best per-frame data rates:  in main()
424 	case 'n':	/* no test running! */  in main()
447 			"\t-D dev		only test specific device\n"  in main()
448 			"\t-A usb-dir\n"  in main()
449 			"\t-a		test all recognized devices\n"  in main()
450 			"\t-l		loop forever(for stress test)\n"  in main()
451 			"\t-t testnum	only run specified case\n"  in main()
452 			"\t-n		no test running, show devices to be tested\n"  in main()
454 			"\t-c iterations		default 1000\n"  in main()
455 			"\t-s transfer length	default 1024\n"  in main()
456 			"\t-g sglen		default 32\n"  in main()
457 			"\t-v vary			default 1024\n",  in main()
464 		fprintf (stderr, "must specify '-a' or '-D dev', "  in main()
474 			return -1;  in main()
481 		return -1;  in main()
486 		fputs ("no test devices recognized\n", stderr);  in main()
487 		return -1;  in main()
491 	if (testdevs && !testdevs->next && !device)  in main()
492 		device = testdevs->name;  in main()
493 	for (entry = testdevs; entry; entry = entry->next) {  in main()
496 		entry->param = param;  in main()
497 		entry->forever = forever;  in main()
498 		entry->test = test;  in main()
501 			if (strcmp (entry->name, device))  in main()
505 		status = pthread_create (&entry->thread, 0, handle_testdev, entry);  in main()
512 		/* kernel can recognize test devices we don't */  in main()
525 	for (entry = testdevs; entry; entry = entry->next) {  in main()
528 		if (pthread_join (entry->thread, &retval))  in main()