usbhost.c revision e15af09876c5e0301084f46b8036aed147cf9c24
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 { 636ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood usb_device_added_cb added_cb; 646ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood usb_device_removed_cb removed_cb; 656ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood void *client_data; 666ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood}; 676ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood 6830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_device { 6930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood char dev_name[64]; 7030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood unsigned char desc[256]; 7130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int desc_length; 7230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int fd; 7330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int writeable; 7430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood}; 7530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 7630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_endpoint 7730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 7830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device *dev; 7930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_endpoint_descriptor desc; 8030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usbdevfs_urb urb; 8130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood}; 8230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 8330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstatic inline int badname(const char *name) 8430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 8530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood while(*name) { 8630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(!isdigit(*name++)) return 1; 8730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 8830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return 0; 8930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 9030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 916ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwoodstatic void find_existing_devices(struct usb_host_context *context) 9230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 9330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood char busname[32], devname[32]; 9430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood DIR *busdir , *devdir ; 9530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct dirent *de; 9630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 9730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood busdir = opendir(USB_FS_DIR); 9830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(busdir == 0) return; 9930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 10030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood while((de = readdir(busdir)) != 0) { 10130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(badname(de->d_name)) continue; 10230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 10330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(busname, sizeof busname, "%s/%s", USB_FS_DIR, de->d_name); 10430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood devdir = opendir(busname); 10530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(devdir == 0) continue; 10630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 10730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood while((de = readdir(devdir))) { 10830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(badname(de->d_name)) continue; 10930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 11030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(devname, sizeof devname, "%s/%s", busname, de->d_name); 1116ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood context->added_cb(devname, context->client_data); 11230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } // end of devdir while 11330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood closedir(devdir); 11430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } //end of busdir while 11530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood closedir(busdir); 11630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 11730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 1186ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwoodstatic void* device_discovery_thread(void *client_data) 11930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 1206ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood struct usb_host_context *context = (struct usb_host_context *)client_data; 12130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct inotify_event* event; 12230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood char event_buf[512]; 12330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood char path[100]; 12430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int i, fd, ret; 12530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int wd, wds[10]; 12630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int wd_count = sizeof(wds) / sizeof(wds[0]); 12730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 12830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("Created device discovery thread\n"); 12930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 13030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood fd = inotify_init(); 13130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (fd < 0) { 13230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood fprintf(stderr, "inotify_init failed\n"); 13330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 13430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 13530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 13630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* watch for files added and deleted within USB_FS_DIR */ 13730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(wds, 0, sizeof(wds)); 13830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* watch the root for new subdirectories */ 13930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood wds[0] = inotify_add_watch(fd, USB_FS_DIR, IN_CREATE | IN_DELETE); 14030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (wds[0] < 0) { 14130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood fprintf(stderr, "inotify_add_watch failed\n"); 14230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 14330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 14430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 14530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* watch existing subdirectories of USB_FS_DIR */ 14630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood for (i = 1; i < wd_count; i++) { 14730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(path, sizeof(path), "%s/%03d", USB_FS_DIR, i); 14830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ret = inotify_add_watch(fd, path, IN_CREATE | IN_DELETE); 14930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (ret > 0) 15030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood wds[i] = ret; 15130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 15230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 15330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* check for existing devices first, after we have inotify set up */ 1546ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood find_existing_devices(context); 15530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 15630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood while (1) { 15730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ret = read(fd, event_buf, sizeof(event_buf)); 15830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (ret >= (int)sizeof(struct inotify_event)) { 15930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood event = (struct inotify_event *)event_buf; 16030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood wd = event->wd; 16130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (wd == wds[0]) { 16230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood i = atoi(event->name); 16330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(path, sizeof(path), "%s/%s", USB_FS_DIR, event->name); 16430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("new subdirectory %s: index: %d\n", path, i); 16530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (i > 0 && i < wd_count) { 16630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ret = inotify_add_watch(fd, path, IN_CREATE | IN_DELETE); 16730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (ret > 0) 16830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood wds[i] = ret; 16930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 17030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } else { 17130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood for (i = 1; i < wd_count; i++) { 17230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (wd == wds[i]) { 17330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood snprintf(path, sizeof(path), "%s/%03d/%s", USB_FS_DIR, i, event->name); 17430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (event->mask == IN_CREATE) { 17530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("new device %s\n", path); 1766ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood context->added_cb(path, context->client_data); 17730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } else if (event->mask == IN_DELETE) { 17830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("gone device %s\n", path); 1796ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood context->removed_cb(path, context->client_data); 18030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 18130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 18230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 18330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 18430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 18530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 18630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 18730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 18830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 1896ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwoodint usb_host_init(usb_device_added_cb added_cb, usb_device_removed_cb removed_cb, void *client_data) 19030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 1916ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood struct usb_host_context *context; 19230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood pthread_t tid; 1936ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood pthread_attr_t attr; 19430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 1956ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood if (!added_cb || !removed_cb) 1966ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood return -EINVAL; 19730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 1986ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood context = calloc(1, sizeof(struct usb_host_context)); 1996ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood context->added_cb = added_cb; 2006ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood context->removed_cb = removed_cb; 2016ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood context->client_data = client_data; 20230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 2036ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood pthread_attr_init(&attr); 2046ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); 2056ac3aa157493ef24bc837b679dd8292fad8961e0Mike Lockwood return pthread_create(&tid, &attr, device_discovery_thread, context); 20630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 20730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 20830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_device *usb_device_open(const char *dev_name) 20930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 21030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device *device = calloc(1, sizeof(struct usb_device)); 21130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int fd, length, did_retry = 0; 21230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 21330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood strcpy(device->dev_name, dev_name); 21430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->writeable = 1; 21530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 21630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodretry: 21730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood fd = open(dev_name, O_RDWR); 21830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (fd < 0) { 21930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* if we fail, see if have read-only access */ 22030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood fd = open(dev_name, O_RDONLY); 221e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood D("usb_device_open open returned %d errno %d\n", fd, errno); 222e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood if (fd < 0 && (errno == EACCES || errno == ENOENT) && !did_retry) { 22330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood /* work around race condition between inotify and permissions management */ 22430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood sleep(1); 22530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood did_retry = 1; 22630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood goto retry; 22730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 22830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 22930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (fd < 0) goto fail; 23030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->writeable = 0; 23130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("[ usb open read-only %s fd = %d]\n", dev_name, fd); 23230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 23330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 23430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood length = read(fd, device->desc, sizeof(device->desc)); 235e15af09876c5e0301084f46b8036aed147cf9c24Mike Lockwood D("usb_device_open read returned %d errno %d\n", fd, errno); 23630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (length < 0) 23730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood goto fail; 23830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 23930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->fd = fd; 24030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->desc_length = length; 24130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return device; 24230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodfail: 24330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood close(fd); 24430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood free(device); 24530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 24630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 24730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 24830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodvoid usb_device_close(struct usb_device *device) 24930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 25030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood close(device->fd); 25130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood free(device); 25230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 25330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 25430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodconst char* usb_device_get_name(struct usb_device *device) 25530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 25630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return device->dev_name; 25730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 25830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 259203f102028c4df33c191d8cd610775eba8d5366dMike Lockwoodint usb_device_get_unique_id(struct usb_device *device) 260203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood{ 261203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood int bus = 0, dev = 0; 262203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood sscanf(device->dev_name, USB_FS_ID_SCANNER, &bus, &dev); 263203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood return bus * 1000 + dev; 264203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood} 265203f102028c4df33c191d8cd610775eba8d5366dMike Lockwood 26630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwooduint16_t usb_device_get_vendor_id(struct usb_device *device) 26730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 26830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor* desc = (struct usb_device_descriptor*)device->desc; 26930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return __le16_to_cpu(desc->idVendor); 27030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 27130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 27230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwooduint16_t usb_device_get_product_id(struct usb_device *device) 27330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 27430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor* desc = (struct usb_device_descriptor*)device->desc; 27530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return __le16_to_cpu(desc->idProduct); 27630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 27730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 27830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodchar* usb_device_get_string(struct usb_device *device, int id) 27930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 28030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood char string[256]; 28130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usbdevfs_ctrltransfer ctrl; 28230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood __u16 buffer[128]; 28330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood __u16 languages[128]; 28430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int i, result; 28530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int languageCount = 0; 28630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 28730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood string[0] = 0; 28830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 28930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood // reading the string requires read/write permission 29030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (!device->writeable) { 29130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int fd = open(device->dev_name, O_RDWR); 29230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (fd > 0) { 29330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood close(device->fd); 29430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->fd = fd; 29530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood device->writeable = 1; 29630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } else { 29730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 29830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 29930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 30030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 30130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(languages, 0, sizeof(languages)); 30230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(&ctrl, 0, sizeof(ctrl)); 30330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 30430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood // read list of supported languages 30530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.bRequestType = USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE; 30630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.bRequest = USB_REQ_GET_DESCRIPTOR; 30730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.wValue = (USB_DT_STRING << 8) | 0; 30830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.wIndex = 0; 30930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.wLength = sizeof(languages); 31030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.data = languages; 31130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 31230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood result = ioctl(device->fd, USBDEVFS_CONTROL, &ctrl); 31330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (result > 0) 31430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood languageCount = (result - 2) / 2; 31530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 31630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood for (i = 1; i <= languageCount; i++) { 31730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(buffer, 0, sizeof(buffer)); 31830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(&ctrl, 0, sizeof(ctrl)); 31930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 32030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.bRequestType = USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE; 32130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.bRequest = USB_REQ_GET_DESCRIPTOR; 32230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.wValue = (USB_DT_STRING << 8) | id; 32330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.wIndex = languages[i]; 32430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.wLength = sizeof(buffer); 32530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ctrl.data = buffer; 32630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 32730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood result = ioctl(device->fd, USBDEVFS_CONTROL, &ctrl); 32830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (result > 0) { 32930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int i; 33030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood // skip first word, and copy the rest to the string, changing shorts to bytes. 33130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood result /= 2; 33230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood for (i = 1; i < result; i++) 33330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood string[i - 1] = buffer[i]; 33430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood string[i - 1] = 0; 33530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return strdup(string); 33630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 33730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 33830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 33930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 34030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 34130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 34230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodchar* usb_device_get_manufacturer_name(struct usb_device *device) 34330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 34430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor *desc = (struct usb_device_descriptor *)device->desc; 34530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 34630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (desc->iManufacturer) 34730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return usb_device_get_string(device, desc->iManufacturer); 34830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood else 34930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 35030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 35130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 35230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodchar* usb_device_get_product_name(struct usb_device *device) 35330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 35430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor *desc = (struct usb_device_descriptor *)device->desc; 35530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 35630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (desc->iProduct) 35730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return usb_device_get_string(device, desc->iProduct); 35830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood else 35930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 36030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 36130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 36230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodchar* usb_device_get_serial(struct usb_device *device) 36330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 36430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_device_descriptor *desc = (struct usb_device_descriptor *)device->desc; 36530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 36630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (desc->iSerialNumber) 36730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return usb_device_get_string(device, desc->iSerialNumber); 36830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood else 36930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 37030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 37130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 37230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_device_is_writeable(struct usb_device *device) 37330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 37430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return device->writeable; 37530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 37630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 37730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodvoid usb_descriptor_iter_init(struct usb_device *device, struct usb_descriptor_iter *iter) 37830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 37930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood iter->config = device->desc; 38030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood iter->config_end = device->desc + device->desc_length; 38130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood iter->curr_desc = device->desc; 38230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 38330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 38430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_descriptor_header *usb_descriptor_iter_next(struct usb_descriptor_iter *iter) 38530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 38630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_descriptor_header* next; 38730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (iter->curr_desc >= iter->config_end) 38830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return NULL; 38930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood next = (struct usb_descriptor_header*)iter->curr_desc; 39030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood iter->curr_desc += next->bLength; 39130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return next; 39230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 39330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 39430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_device_claim_interface(struct usb_device *device, unsigned int interface) 39530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 39630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ioctl(device->fd, USBDEVFS_CLAIMINTERFACE, &interface); 39730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 39830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 39930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_device_release_interface(struct usb_device *device, unsigned int interface) 40030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 40130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ioctl(device->fd, USBDEVFS_RELEASEINTERFACE, &interface); 40230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 40330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 40430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodstruct usb_endpoint *usb_endpoint_open(struct usb_device *dev, 40530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood const struct usb_endpoint_descriptor *desc) 40630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 40730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usb_endpoint *ep = calloc(1, sizeof(struct usb_endpoint)); 40830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memcpy(&ep->desc, desc, sizeof(ep->desc)); 40930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood ep->dev = dev; 41030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ep; 41130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 41230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 41330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodvoid usb_endpoint_close(struct usb_endpoint *ep) 41430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 41530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood // cancel IO here? 41630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood free(ep); 41730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 41830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 41930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_queue(struct usb_endpoint *ep, void *data, int len) 42030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 42130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usbdevfs_urb *urb = &ep->urb; 42230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int res; 42330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 42430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("usb_endpoint_queue\n"); 42530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood memset(urb, 0, sizeof(*urb)); 42630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->type = USBDEVFS_URB_TYPE_BULK; 42730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->endpoint = ep->desc.bEndpointAddress; 42830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->status = -1; 42930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->buffer = data; 43030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood urb->buffer_length = len; 43130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 43230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood do { 43330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood res = ioctl(ep->dev->fd, USBDEVFS_SUBMITURB, urb); 43430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } while((res < 0) && (errno == EINTR)); 43530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 43630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return res; 43730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 43830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 43930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_wait(struct usb_device *dev, int *out_ep_num) 44030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 44130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood struct usbdevfs_urb *out = NULL; 44230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood int res; 44330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 44430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood while (1) { 44530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood res = ioctl(dev->fd, USBDEVFS_REAPURB, &out); 44630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("USBDEVFS_REAPURB returned %d\n", res); 44730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if (res < 0) { 44830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood if(errno == EINTR) { 44930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood continue; 45030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 45130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("[ reap urb - error ]\n"); 45230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood *out_ep_num = -1; 45330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } else { 45430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood D("[ urb @%p status = %d, actual = %d ]\n", 45530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood out, out->status, out->actual_length); 45630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood res = out->actual_length; 45730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood *out_ep_num = out->endpoint; 45830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 45930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood break; 46030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood } 46130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return res; 46230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 46330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 46430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_cancel(struct usb_endpoint *ep) 46530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 46630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ioctl(ep->dev->fd, USBDEVFS_DISCARDURB, &ep->urb); 46730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 46830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 4695e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwoodstruct usb_device *usb_endpoint_get_device(struct usb_endpoint *ep) 4705e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwood{ 4715e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwood return ep->dev; 4725e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwood} 4735e567cb34b5e54467f501fc9703db82ca6639ff3Mike Lockwood 47430ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_number(struct usb_endpoint *ep) 47530ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 47630ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return ep->desc.bEndpointAddress; 47730ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 47830ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 47930ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwoodint usb_endpoint_max_packet(struct usb_endpoint *ep) 48030ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood{ 48130ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood return __le16_to_cpu(ep->desc.wMaxPacketSize); 48230ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood} 48330ff2c70ce05d761e8cb0ab7ee02b39a681fe0cbMike Lockwood 484