17b3f74f7SKrzysztof Opasiak /* 27b3f74f7SKrzysztof Opasiak * Copyright (C) 2015 Karol Kosik <karo9@interia.eu> 37b3f74f7SKrzysztof Opasiak * 2015 Samsung Electronics 47b3f74f7SKrzysztof Opasiak * Author: Igor Kotrasinski <i.kotrasinsk@samsung.com> 57b3f74f7SKrzysztof Opasiak * 67b3f74f7SKrzysztof Opasiak * Based on tools/usb/usbip/libsrc/usbip_host_driver.c, which is: 77b3f74f7SKrzysztof Opasiak * Copyright (C) 2011 matt mooney <mfm@muteddisk.com> 87b3f74f7SKrzysztof Opasiak * 2005-2007 Takahiro Hirofuchi 97b3f74f7SKrzysztof Opasiak * 107b3f74f7SKrzysztof Opasiak * This program is free software; you can redistribute it and/or modify 117b3f74f7SKrzysztof Opasiak * it under the terms of the GNU General Public License as published by 127b3f74f7SKrzysztof Opasiak * the Free Software Foundation; either version 2 of the License, or 137b3f74f7SKrzysztof Opasiak * (at your option) any later version. 147b3f74f7SKrzysztof Opasiak * 157b3f74f7SKrzysztof Opasiak * This program is distributed in the hope that it will be useful, 167b3f74f7SKrzysztof Opasiak * but WITHOUT ANY WARRANTY; without even the implied warranty of 177b3f74f7SKrzysztof Opasiak * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 187b3f74f7SKrzysztof Opasiak * GNU General Public License for more details. 197b3f74f7SKrzysztof Opasiak * 207b3f74f7SKrzysztof Opasiak * You should have received a copy of the GNU General Public License 217b3f74f7SKrzysztof Opasiak * along with this program. If not, see <http://www.gnu.org/licenses/>. 227b3f74f7SKrzysztof Opasiak */ 237b3f74f7SKrzysztof Opasiak 247b3f74f7SKrzysztof Opasiak #include <fcntl.h> 257b3f74f7SKrzysztof Opasiak #include <string.h> 267b3f74f7SKrzysztof Opasiak #include <linux/usb/ch9.h> 277b3f74f7SKrzysztof Opasiak 287b3f74f7SKrzysztof Opasiak #include <unistd.h> 297b3f74f7SKrzysztof Opasiak 307b3f74f7SKrzysztof Opasiak #include "usbip_host_common.h" 317b3f74f7SKrzysztof Opasiak #include "usbip_device_driver.h" 327b3f74f7SKrzysztof Opasiak 337b3f74f7SKrzysztof Opasiak #undef PROGNAME 347b3f74f7SKrzysztof Opasiak #define PROGNAME "libusbip" 357b3f74f7SKrzysztof Opasiak 367b3f74f7SKrzysztof Opasiak #define copy_descr_attr16(dev, descr, attr) \ 377b3f74f7SKrzysztof Opasiak ((dev)->attr = le16toh((descr)->attr)) \ 387b3f74f7SKrzysztof Opasiak 397b3f74f7SKrzysztof Opasiak #define copy_descr_attr(dev, descr, attr) \ 407b3f74f7SKrzysztof Opasiak ((dev)->attr = (descr)->attr) \ 417b3f74f7SKrzysztof Opasiak 427b3f74f7SKrzysztof Opasiak #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) 437b3f74f7SKrzysztof Opasiak 447b3f74f7SKrzysztof Opasiak static struct { 457b3f74f7SKrzysztof Opasiak enum usb_device_speed speed; 467b3f74f7SKrzysztof Opasiak const char *name; 477b3f74f7SKrzysztof Opasiak } speed_names[] = { 487b3f74f7SKrzysztof Opasiak { 497b3f74f7SKrzysztof Opasiak .speed = USB_SPEED_UNKNOWN, 507b3f74f7SKrzysztof Opasiak .name = "UNKNOWN", 517b3f74f7SKrzysztof Opasiak }, 527b3f74f7SKrzysztof Opasiak { 537b3f74f7SKrzysztof Opasiak .speed = USB_SPEED_LOW, 547b3f74f7SKrzysztof Opasiak .name = "low-speed", 557b3f74f7SKrzysztof Opasiak }, 567b3f74f7SKrzysztof Opasiak { 577b3f74f7SKrzysztof Opasiak .speed = USB_SPEED_FULL, 587b3f74f7SKrzysztof Opasiak .name = "full-speed", 597b3f74f7SKrzysztof Opasiak }, 607b3f74f7SKrzysztof Opasiak { 617b3f74f7SKrzysztof Opasiak .speed = USB_SPEED_HIGH, 627b3f74f7SKrzysztof Opasiak .name = "high-speed", 637b3f74f7SKrzysztof Opasiak }, 647b3f74f7SKrzysztof Opasiak { 657b3f74f7SKrzysztof Opasiak .speed = USB_SPEED_WIRELESS, 667b3f74f7SKrzysztof Opasiak .name = "wireless", 677b3f74f7SKrzysztof Opasiak }, 687b3f74f7SKrzysztof Opasiak { 697b3f74f7SKrzysztof Opasiak .speed = USB_SPEED_SUPER, 707b3f74f7SKrzysztof Opasiak .name = "super-speed", 717b3f74f7SKrzysztof Opasiak }, 727b3f74f7SKrzysztof Opasiak }; 737b3f74f7SKrzysztof Opasiak 747b3f74f7SKrzysztof Opasiak static 757b3f74f7SKrzysztof Opasiak int read_usb_vudc_device(struct udev_device *sdev, struct usbip_usb_device *dev) 767b3f74f7SKrzysztof Opasiak { 777b3f74f7SKrzysztof Opasiak const char *path, *name; 787b3f74f7SKrzysztof Opasiak char filepath[SYSFS_PATH_MAX]; 797b3f74f7SKrzysztof Opasiak struct usb_device_descriptor descr; 805c65a2fdSElad Wexler unsigned int i; 817b3f74f7SKrzysztof Opasiak FILE *fd = NULL; 827b3f74f7SKrzysztof Opasiak struct udev_device *plat; 837b3f74f7SKrzysztof Opasiak const char *speed; 847b3f74f7SKrzysztof Opasiak int ret = 0; 857b3f74f7SKrzysztof Opasiak 867b3f74f7SKrzysztof Opasiak plat = udev_device_get_parent(sdev); 877b3f74f7SKrzysztof Opasiak path = udev_device_get_syspath(plat); 887b3f74f7SKrzysztof Opasiak snprintf(filepath, SYSFS_PATH_MAX, "%s/%s", 897b3f74f7SKrzysztof Opasiak path, VUDC_DEVICE_DESCR_FILE); 907b3f74f7SKrzysztof Opasiak fd = fopen(filepath, "r"); 917b3f74f7SKrzysztof Opasiak if (!fd) 927b3f74f7SKrzysztof Opasiak return -1; 937b3f74f7SKrzysztof Opasiak ret = fread((char *) &descr, sizeof(descr), 1, fd); 947b3f74f7SKrzysztof Opasiak if (ret < 0) 957b3f74f7SKrzysztof Opasiak return -1; 967b3f74f7SKrzysztof Opasiak fclose(fd); 977b3f74f7SKrzysztof Opasiak 987b3f74f7SKrzysztof Opasiak copy_descr_attr(dev, &descr, bDeviceClass); 997b3f74f7SKrzysztof Opasiak copy_descr_attr(dev, &descr, bDeviceSubClass); 1007b3f74f7SKrzysztof Opasiak copy_descr_attr(dev, &descr, bDeviceProtocol); 1017b3f74f7SKrzysztof Opasiak copy_descr_attr(dev, &descr, bNumConfigurations); 1027b3f74f7SKrzysztof Opasiak copy_descr_attr16(dev, &descr, idVendor); 1037b3f74f7SKrzysztof Opasiak copy_descr_attr16(dev, &descr, idProduct); 1047b3f74f7SKrzysztof Opasiak copy_descr_attr16(dev, &descr, bcdDevice); 1057b3f74f7SKrzysztof Opasiak 1067b3f74f7SKrzysztof Opasiak strncpy(dev->path, path, SYSFS_PATH_MAX); 1077b3f74f7SKrzysztof Opasiak 1087b3f74f7SKrzysztof Opasiak dev->speed = USB_SPEED_UNKNOWN; 1097b3f74f7SKrzysztof Opasiak speed = udev_device_get_sysattr_value(sdev, "current_speed"); 1107b3f74f7SKrzysztof Opasiak if (speed) { 1117b3f74f7SKrzysztof Opasiak for (i = 0; i < ARRAY_SIZE(speed_names); i++) { 1127b3f74f7SKrzysztof Opasiak if (!strcmp(speed_names[i].name, speed)) { 1137b3f74f7SKrzysztof Opasiak dev->speed = speed_names[i].speed; 1147b3f74f7SKrzysztof Opasiak break; 1157b3f74f7SKrzysztof Opasiak } 1167b3f74f7SKrzysztof Opasiak } 1177b3f74f7SKrzysztof Opasiak } 1187b3f74f7SKrzysztof Opasiak 1197b3f74f7SKrzysztof Opasiak /* Only used for user output, little sense to output them in general */ 1207b3f74f7SKrzysztof Opasiak dev->bNumInterfaces = 0; 1217b3f74f7SKrzysztof Opasiak dev->bConfigurationValue = 0; 1227b3f74f7SKrzysztof Opasiak dev->busnum = 0; 1237b3f74f7SKrzysztof Opasiak 1247b3f74f7SKrzysztof Opasiak name = udev_device_get_sysname(plat); 1257b3f74f7SKrzysztof Opasiak strncpy(dev->busid, name, SYSFS_BUS_ID_SIZE); 1267b3f74f7SKrzysztof Opasiak return 0; 1277b3f74f7SKrzysztof Opasiak } 1287b3f74f7SKrzysztof Opasiak 1297b3f74f7SKrzysztof Opasiak static int is_my_device(struct udev_device *dev) 1307b3f74f7SKrzysztof Opasiak { 1317b3f74f7SKrzysztof Opasiak const char *driver; 1327b3f74f7SKrzysztof Opasiak 1337b3f74f7SKrzysztof Opasiak driver = udev_device_get_property_value(dev, "USB_UDC_NAME"); 1347b3f74f7SKrzysztof Opasiak return driver != NULL && !strcmp(driver, USBIP_DEVICE_DRV_NAME); 1357b3f74f7SKrzysztof Opasiak } 1367b3f74f7SKrzysztof Opasiak 1377b3f74f7SKrzysztof Opasiak static int usbip_device_driver_open(struct usbip_host_driver *hdriver) 1387b3f74f7SKrzysztof Opasiak { 1397b3f74f7SKrzysztof Opasiak int ret; 1407b3f74f7SKrzysztof Opasiak 1417b3f74f7SKrzysztof Opasiak hdriver->ndevs = 0; 1427b3f74f7SKrzysztof Opasiak INIT_LIST_HEAD(&hdriver->edev_list); 1437b3f74f7SKrzysztof Opasiak 1447b3f74f7SKrzysztof Opasiak ret = usbip_generic_driver_open(hdriver); 1457b3f74f7SKrzysztof Opasiak if (ret) 1467b3f74f7SKrzysztof Opasiak err("please load " USBIP_CORE_MOD_NAME ".ko and " 1477b3f74f7SKrzysztof Opasiak USBIP_DEVICE_DRV_NAME ".ko!"); 1487b3f74f7SKrzysztof Opasiak 1497b3f74f7SKrzysztof Opasiak return ret; 1507b3f74f7SKrzysztof Opasiak } 1517b3f74f7SKrzysztof Opasiak 1527b3f74f7SKrzysztof Opasiak struct usbip_host_driver device_driver = { 1537b3f74f7SKrzysztof Opasiak .edev_list = LIST_HEAD_INIT(device_driver.edev_list), 1547b3f74f7SKrzysztof Opasiak .udev_subsystem = "udc", 1557b3f74f7SKrzysztof Opasiak .ops = { 1567b3f74f7SKrzysztof Opasiak .open = usbip_device_driver_open, 1577b3f74f7SKrzysztof Opasiak .close = usbip_generic_driver_close, 1587b3f74f7SKrzysztof Opasiak .refresh_device_list = usbip_generic_refresh_device_list, 1597b3f74f7SKrzysztof Opasiak .get_device = usbip_generic_get_device, 1607b3f74f7SKrzysztof Opasiak .read_device = read_usb_vudc_device, 1617b3f74f7SKrzysztof Opasiak .is_my_device = is_my_device, 1627b3f74f7SKrzysztof Opasiak }, 1637b3f74f7SKrzysztof Opasiak }; 164