usbhost.c revision 1b7d991b433cf6d6fae4f40cb37f9b6c6043cfbc
130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood/* 230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * Copyright (C) 2010 The Android Open Source Project 330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * 430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * Licensed under the Apache License, Version 2.0 (the "License"); 530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * you may not use this file except in compliance with the License. 630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * You may obtain a copy of the License at 730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * 830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * http://www.apache.org/licenses/LICENSE-2.0 930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * 1030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * Unless required by applicable law or agreed to in writing, software 1130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * distributed under the License is distributed on an "AS IS" BASIS, 1230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * See the License for the specific language governing permissions and 1430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood * limitations under the License. 1530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood */ 1630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 17e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood// #define DEBUG 1 18e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#if DEBUG 19e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood 20e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#ifdef USE_LIBLOG 21e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#define LOG_TAG "usbhost" 22e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#include "utils/Log.h" 23e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#define D LOGD 24e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#else 25e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#define D printf 26e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#endif 27e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood 28e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#else 29e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#define D(...) 30e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood#endif 31e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood 3230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <stdio.h> 3330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <stdlib.h> 3430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <unistd.h> 3530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <string.h> 3630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 3730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <sys/ioctl.h> 3830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <sys/types.h> 3930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <sys/time.h> 4030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <sys/inotify.h> 4130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <dirent.h> 4230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <fcntl.h> 4330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <errno.h> 4430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <ctype.h> 4530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <pthread.h> 4630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 4730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <linux/usbdevice_fs.h> 4830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <linux/version.h> 4930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 20) 5030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <linux/usb/ch9.h> 5130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#else 5230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <linux/usb_ch9.h> 5330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#endif 5430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include <asm/byteorder.h> 5530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 5630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#include "usbhost/usbhost.h" 5730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 5830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood#define USB_FS_DIR "/dev/bus/usb" 59203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood#define USB_FS_ID_SCANNER "/dev/bus/usb/%d/%d" 6030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 6130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 626ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwoodstruct usb_host_context { 637a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood int fd; 646ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood}; 656ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood 6630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_device { 6730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood char dev_name[64]; 6830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood unsigned char desc[256]; 6930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int desc_length; 7030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int fd; 7130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int writeable; 7230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood}; 7330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 7430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_endpoint 7530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 7630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device *dev; 7730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_endpoint_descriptor desc; 7830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usbdevfs_urb urb; 7930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood}; 8030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 8130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstatic inline int badname(const char *name) 8230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 8330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood while(*name) { 8430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(!isdigit(*name++)) return 1; 8530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 8630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return 0; 8730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 8830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 897a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood/* returns true if one of the callbacks indicates we are done */ 907a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwoodstatic int find_existing_devices(usb_device_added_cb added_cb, 917a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood usb_device_removed_cb removed_cb, 927a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood void *client_data) 9330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 9430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood char busname[32], devname[32]; 9530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood DIR *busdir , *devdir ; 9630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct dirent *de; 977a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood int done = 0; 9830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 9930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood busdir = opendir(USB_FS_DIR); 1007a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood if(busdir == 0) return 1; 10130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 1027a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood while ((de = readdir(busdir)) != 0 && !done) { 10330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(badname(de->d_name)) continue; 10430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 10530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(busname, sizeof busname, "%s/%s", USB_FS_DIR, de->d_name); 10630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood devdir = opendir(busname); 10730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(devdir == 0) continue; 10830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 1097a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood while ((de = readdir(devdir)) && !done) { 11030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(badname(de->d_name)) continue; 11130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 11230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(devname, sizeof devname, "%s/%s", busname, de->d_name); 1137a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood done = added_cb(devname, client_data); 11430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } // end of devdir while 11530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood closedir(devdir); 11630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } //end of busdir while 11730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood closedir(busdir); 1187a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood 1197a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood return done; 1207a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood} 1217a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood 1227a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwoodstruct usb_host_context *usb_host_init() 1237a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood{ 1247a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood struct usb_host_context *context = calloc(1, sizeof(struct usb_host_context)); 1257a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood if (!context) { 1267a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood fprintf(stderr, "out of memory in usb_host_context\n"); 1277a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood return NULL; 1287a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood } 1297a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood context->fd = inotify_init(); 1307a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood if (context->fd < 0) { 1317a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood fprintf(stderr, "inotify_init failed\n"); 1327a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood free(context); 1337a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood return NULL; 1347a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood } 1357a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood return context; 1367a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood} 1377a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood 1387a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwoodvoid usb_host_cleanup(struct usb_host_context *context) 1397a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood{ 1407a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood close(context->fd); 1417a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood free(context); 14230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 14330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 1447a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwoodvoid usb_host_run(struct usb_host_context *context, 1457a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood usb_device_added_cb added_cb, 1467a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood usb_device_removed_cb removed_cb, 147a805519ceedc53afa5453a6d8a7d80038d885d9fMike Lockwood usb_discovery_done_cb discovery_done_cb, 1487a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood void *client_data) 14930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 15030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct inotify_event* event; 15130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood char event_buf[512]; 15230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood char path[100]; 1537a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood int i, ret, done = 0; 15430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int wd, wds[10]; 15530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int wd_count = sizeof(wds) / sizeof(wds[0]); 15630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 15730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("Created device discovery thread\n"); 15830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 15930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* watch for files added and deleted within USB_FS_DIR */ 16030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(wds, 0, sizeof(wds)); 16130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* watch the root for new subdirectories */ 1627a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood wds[0] = inotify_add_watch(context->fd, USB_FS_DIR, IN_CREATE | IN_DELETE); 16330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (wds[0] < 0) { 16430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood fprintf(stderr, "inotify_add_watch failed\n"); 165e8849d190a3097274dcb64416e564538a1017054Mike Lockwood if (discovery_done_cb) 166e8849d190a3097274dcb64416e564538a1017054Mike Lockwood discovery_done_cb(client_data); 1677a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood return; 16830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 16930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 17030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* watch existing subdirectories of USB_FS_DIR */ 17130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood for (i = 1; i < wd_count; i++) { 17230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(path, sizeof(path), "%s/%03d", USB_FS_DIR, i); 1737a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood ret = inotify_add_watch(context->fd, path, IN_CREATE | IN_DELETE); 17430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (ret > 0) 17530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood wds[i] = ret; 17630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 17730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 17830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* check for existing devices first, after we have inotify set up */ 1797a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood done = find_existing_devices(added_cb, removed_cb, client_data); 180a805519ceedc53afa5453a6d8a7d80038d885d9fMike Lockwood if (discovery_done_cb) 181a805519ceedc53afa5453a6d8a7d80038d885d9fMike Lockwood done |= discovery_done_cb(client_data); 18230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 1837a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood while (!done) { 1847a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood ret = read(context->fd, event_buf, sizeof(event_buf)); 18530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (ret >= (int)sizeof(struct inotify_event)) { 18630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood event = (struct inotify_event *)event_buf; 18730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood wd = event->wd; 18830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (wd == wds[0]) { 18930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood i = atoi(event->name); 19030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(path, sizeof(path), "%s/%s", USB_FS_DIR, event->name); 19130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("new subdirectory %s: index: %d\n", path, i); 19230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (i > 0 && i < wd_count) { 1937a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood ret = inotify_add_watch(context->fd, path, IN_CREATE | IN_DELETE); 19430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (ret > 0) 19530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood wds[i] = ret; 19630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 19730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } else { 1987a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood for (i = 1; i < wd_count && !done; i++) { 19930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (wd == wds[i]) { 20030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(path, sizeof(path), "%s/%03d/%s", USB_FS_DIR, i, event->name); 20130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (event->mask == IN_CREATE) { 20230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("new device %s\n", path); 2037a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood done = added_cb(path, client_data); 20430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } else if (event->mask == IN_DELETE) { 20530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("gone device %s\n", path); 2067a96ba436c9a2bacc64e712bdb53bd7accc5c3a9Mike Lockwood done = removed_cb(path, client_data); 20730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 20830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 20930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 21030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 21130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 21230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 21330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 21430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 21530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_device *usb_device_open(const char *dev_name) 21630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 21730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device *device = calloc(1, sizeof(struct usb_device)); 21830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int fd, length, did_retry = 0; 21930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 22030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood strcpy(device->dev_name, dev_name); 22130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->writeable = 1; 22230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 22330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodretry: 22430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood fd = open(dev_name, O_RDWR); 22530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (fd < 0) { 22630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* if we fail, see if have read-only access */ 22730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood fd = open(dev_name, O_RDONLY); 228e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood D("usb_device_open open returned %d errno %d\n", fd, errno); 229e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood if (fd < 0 && (errno == EACCES || errno == ENOENT) && !did_retry) { 23030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* work around race condition between inotify and permissions management */ 23130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood sleep(1); 23230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood did_retry = 1; 23330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood goto retry; 23430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 23530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 23630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (fd < 0) goto fail; 23730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->writeable = 0; 23830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("[ usb open read-only %s fd = %d]\n", dev_name, fd); 23930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 24030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 24130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood length = read(fd, device->desc, sizeof(device->desc)); 242e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood D("usb_device_open read returned %d errno %d\n", fd, errno); 24330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (length < 0) 24430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood goto fail; 24530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 24630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->fd = fd; 24730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->desc_length = length; 24830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return device; 24930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodfail: 25030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood close(fd); 25130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood free(device); 25230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 25330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 25430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 25530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodvoid usb_device_close(struct usb_device *device) 25630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 25730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood close(device->fd); 25830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood free(device); 25930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 26030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 26130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodconst char* usb_device_get_name(struct usb_device *device) 26230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 26330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return device->dev_name; 26430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 26530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 266203f102028c4df33c191d8cd610775eba8d5366dMike Lockwoodint usb_device_get_unique_id(struct usb_device *device) 267203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood{ 268203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood int bus = 0, dev = 0; 269203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood sscanf(device->dev_name, USB_FS_ID_SCANNER, &bus, &dev); 270203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood return bus * 1000 + dev; 271203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood} 272203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood 27330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwooduint16_t usb_device_get_vendor_id(struct usb_device *device) 27430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 27530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor* desc = (struct usb_device_descriptor*)device->desc; 27630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return __le16_to_cpu(desc->idVendor); 27730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 27830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 27930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwooduint16_t usb_device_get_product_id(struct usb_device *device) 28030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 28130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor* desc = (struct usb_device_descriptor*)device->desc; 28230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return __le16_to_cpu(desc->idProduct); 28330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 28430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 2851b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwoodint usb_device_send_control(struct usb_device *device, 2861b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood int requestType, 2871b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood int request, 2881b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood int value, 2891b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood int index, 2901b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood int length, 2911b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood void* buffer) 29230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 29330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usbdevfs_ctrltransfer ctrl; 29430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 2951b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood // this usually requires read/write permission 29630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (!device->writeable) { 29730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int fd = open(device->dev_name, O_RDWR); 29830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (fd > 0) { 29930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood close(device->fd); 30030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->fd = fd; 30130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->writeable = 1; 30230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } else { 3031b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood return -1; 30430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 30530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 30630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 30730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(&ctrl, 0, sizeof(ctrl)); 3081b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood ctrl.bRequestType = requestType; 3091b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood ctrl.bRequest = request; 3101b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood ctrl.wValue = value; 3111b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood ctrl.wIndex = index; 3121b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood ctrl.wLength = length; 3131b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood ctrl.data = buffer; 3141b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood return ioctl(device->fd, USBDEVFS_CONTROL, &ctrl); 3151b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood} 3161b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood 3171b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwoodchar* usb_device_get_string(struct usb_device *device, int id) 3181b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood{ 3191b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood char string[256]; 3201b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood __u16 buffer[128]; 3211b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood __u16 languages[128]; 3221b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood int i, result; 3231b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood int languageCount = 0; 3241b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood 3251b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood string[0] = 0; 3261b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood memset(languages, 0, sizeof(languages)); 32730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 32830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood // read list of supported languages 3291b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood result = usb_device_send_control(device, 3301b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE, USB_REQ_GET_DESCRIPTOR, 3311b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood (USB_DT_STRING << 8) | 0, 0, sizeof(languages), languages); 33230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (result > 0) 33330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood languageCount = (result - 2) / 2; 33430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 33530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood for (i = 1; i <= languageCount; i++) { 33630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(buffer, 0, sizeof(buffer)); 33730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 3381b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood result = usb_device_send_control(device, 3391b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE, USB_REQ_GET_DESCRIPTOR, 3401b7d991b433cf6d6fae4f40cb37f9b6c6043cfbcMike Lockwood (USB_DT_STRING << 8) | id, languages[i], sizeof(buffer), buffer); 34130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (result > 0) { 34230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int i; 34330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood // skip first word, and copy the rest to the string, changing shorts to bytes. 34430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood result /= 2; 34530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood for (i = 1; i < result; i++) 34630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood string[i - 1] = buffer[i]; 34730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood string[i - 1] = 0; 34830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return strdup(string); 34930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 35030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 35130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 35230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 35330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 35430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 35530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodchar* usb_device_get_manufacturer_name(struct usb_device *device) 35630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 35730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor *desc = (struct usb_device_descriptor *)device->desc; 35830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 35930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (desc->iManufacturer) 36030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return usb_device_get_string(device, desc->iManufacturer); 36130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood else 36230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 36330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 36430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 36530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodchar* usb_device_get_product_name(struct usb_device *device) 36630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 36730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor *desc = (struct usb_device_descriptor *)device->desc; 36830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 36930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (desc->iProduct) 37030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return usb_device_get_string(device, desc->iProduct); 37130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood else 37230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 37330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 37430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 37530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodchar* usb_device_get_serial(struct usb_device *device) 37630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 37730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor *desc = (struct usb_device_descriptor *)device->desc; 37830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 37930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (desc->iSerialNumber) 38030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return usb_device_get_string(device, desc->iSerialNumber); 38130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood else 38230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 38330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 38430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 38530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_device_is_writeable(struct usb_device *device) 38630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 38730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return device->writeable; 38830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 38930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 39030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodvoid usb_descriptor_iter_init(struct usb_device *device, struct usb_descriptor_iter *iter) 39130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 39230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood iter->config = device->desc; 39330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood iter->config_end = device->desc + device->desc_length; 39430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood iter->curr_desc = device->desc; 39530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 39630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 39730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_descriptor_header *usb_descriptor_iter_next(struct usb_descriptor_iter *iter) 39830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 39930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_descriptor_header* next; 40030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (iter->curr_desc >= iter->config_end) 40130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 40230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood next = (struct usb_descriptor_header*)iter->curr_desc; 40330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood iter->curr_desc += next->bLength; 40430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return next; 40530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 40630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 40730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_device_claim_interface(struct usb_device *device, unsigned int interface) 40830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 40930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ioctl(device->fd, USBDEVFS_CLAIMINTERFACE, &interface); 41030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 41130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 41230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_device_release_interface(struct usb_device *device, unsigned int interface) 41330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 41430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ioctl(device->fd, USBDEVFS_RELEASEINTERFACE, &interface); 41530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 41630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 41730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_endpoint *usb_endpoint_open(struct usb_device *dev, 41830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood const struct usb_endpoint_descriptor *desc) 41930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 42030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_endpoint *ep = calloc(1, sizeof(struct usb_endpoint)); 42130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memcpy(&ep->desc, desc, sizeof(ep->desc)); 42230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ep->dev = dev; 42330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ep; 42430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 42530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 42630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodvoid usb_endpoint_close(struct usb_endpoint *ep) 42730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 42830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood // cancel IO here? 42930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood free(ep); 43030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 43130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 43230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_queue(struct usb_endpoint *ep, void *data, int len) 43330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 43430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usbdevfs_urb *urb = &ep->urb; 43530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int res; 43630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 43730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("usb_endpoint_queue\n"); 43830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(urb, 0, sizeof(*urb)); 43930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->type = USBDEVFS_URB_TYPE_BULK; 44030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->endpoint = ep->desc.bEndpointAddress; 44130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->status = -1; 44230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->buffer = data; 44330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->buffer_length = len; 44430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 44530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood do { 44630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood res = ioctl(ep->dev->fd, USBDEVFS_SUBMITURB, urb); 44730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } while((res < 0) && (errno == EINTR)); 44830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 44930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return res; 45030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 45130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 45230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_wait(struct usb_device *dev, int *out_ep_num) 45330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 45430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usbdevfs_urb *out = NULL; 45530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int res; 45630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 45730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood while (1) { 45830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood res = ioctl(dev->fd, USBDEVFS_REAPURB, &out); 45930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("USBDEVFS_REAPURB returned %d\n", res); 46030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (res < 0) { 46130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(errno == EINTR) { 46230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood continue; 46330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 46430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("[ reap urb - error ]\n"); 46530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood *out_ep_num = -1; 46630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } else { 46730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("[ urb @%p status = %d, actual = %d ]\n", 46830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood out, out->status, out->actual_length); 46930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood res = out->actual_length; 47030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood *out_ep_num = out->endpoint; 47130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 47230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood break; 47330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 47430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return res; 47530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 47630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 47730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_cancel(struct usb_endpoint *ep) 47830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 47930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ioctl(ep->dev->fd, USBDEVFS_DISCARDURB, &ep->urb); 48030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 48130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 4825e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwoodstruct usb_device *usb_endpoint_get_device(struct usb_endpoint *ep) 4835e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwood{ 4845e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwood return ep->dev; 4855e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwood} 4865e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwood 48730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_number(struct usb_endpoint *ep) 48830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 48930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ep->desc.bEndpointAddress; 49030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 49130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 49230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_max_packet(struct usb_endpoint *ep) 49330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 49430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return __le16_to_cpu(ep->desc.wMaxPacketSize); 49530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 49630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 497