| | 1 | /* |
| | 2 | * This file is part of the sigrok project. |
| | 3 | * |
| | 4 | * Copyright (C) 2010 Bert Vermeulen <bert@biot.com> |
| | 5 | * |
| | 6 | * This program is free software: you can redistribute it and/or modify |
| | 7 | * it under the terms of the GNU General Public License as published by |
| | 8 | * the Free Software Foundation, either version 3 of the License, or |
| | 9 | * (at your option) any later version. |
| | 10 | * |
| | 11 | * This program is distributed in the hope that it will be useful, |
| | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 14 | * GNU General Public License for more details. |
| | 15 | * |
| | 16 | * You should have received a copy of the GNU General Public License |
| | 17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| | 18 | */ |
| | 19 | |
| | 20 | #include "config.h" |
| | 21 | #include <stdint.h> |
| | 22 | #include <glib.h> |
| | 23 | #ifdef HAVE_LIBUSB_1_0 |
| | 24 | #include <libusb.h> |
| | 25 | #endif |
| | 26 | #include <sigrok.h> |
| | 27 | |
| | 28 | #ifdef HAVE_LIBUSB_1_0 |
| | 29 | |
| | 30 | int opendev2(int device_index, struct sr_device_instance **sdi, |
| | 31 | libusb_device *dev, struct libusb_device_descriptor *des, |
| | 32 | int *skip, uint16_t vid, uint16_t pid, int interface) |
| | 33 | { |
| | 34 | int err; |
| | 35 | |
| | 36 | if ((err = libusb_get_device_descriptor(dev, des))) { |
| | 37 | g_warning("failed to get device descriptor: %d", err); |
| | 38 | return -1; |
| | 39 | } |
| | 40 | |
| | 41 | if (des->idVendor != vid || des->idProduct != pid) |
| | 42 | return 0; |
| | 43 | |
| | 44 | if (*skip != device_index) { |
| | 45 | /* Skip devices of this type that aren't the one we want. */ |
| | 46 | *skip += 1; |
| | 47 | return 0; |
| | 48 | } |
| | 49 | |
| | 50 | /* |
| | 51 | * Should check the bus here, since we know that already. But what are |
| | 52 | * we going to do if it doesn't match after the right number of skips? |
| | 53 | */ |
| | 54 | if (!(err = libusb_open(dev, &((*sdi)->usb->devhdl)))) { |
| | 55 | (*sdi)->usb->address = libusb_get_device_address(dev); |
| | 56 | (*sdi)->status = SR_ST_ACTIVE; |
| | 57 | g_message("opened device %d on %d.%d interface %d", |
| | 58 | (*sdi)->index, (*sdi)->usb->bus, |
| | 59 | (*sdi)->usb->address, interface); |
| | 60 | } else { |
| | 61 | g_warning("failed to open device: %d", err); |
| | 62 | *sdi = NULL; |
| | 63 | } |
| | 64 | |
| | 65 | return 0; |
| | 66 | } |
| | 67 | |
| | 68 | int opendev3(struct sr_device_instance **sdi, libusb_device *dev, |
| | 69 | struct libusb_device_descriptor *des, |
| | 70 | uint16_t vid, uint16_t pid, int interface) |
| | 71 | { |
| | 72 | int err; |
| | 73 | |
| | 74 | if ((err = libusb_get_device_descriptor(dev, des))) { |
| | 75 | g_warning("failed to get device descriptor: %d", err); |
| | 76 | return -1; |
| | 77 | } |
| | 78 | |
| | 79 | if (des->idVendor != vid || des->idProduct != pid) |
| | 80 | return 0; |
| | 81 | |
| | 82 | if (libusb_get_bus_number(dev) == (*sdi)->usb->bus |
| | 83 | && libusb_get_device_address(dev) == (*sdi)->usb->address) { |
| | 84 | /* Found it. */ |
| | 85 | if (!(err = libusb_open(dev, &((*sdi)->usb->devhdl)))) { |
| | 86 | (*sdi)->status = SR_ST_ACTIVE; |
| | 87 | g_message("opened device %d on %d.%d interface %d", |
| | 88 | (*sdi)->index, (*sdi)->usb->bus, |
| | 89 | (*sdi)->usb->address, interface); |
| | 90 | } else { |
| | 91 | g_warning("failed to open device: %d", err); |
| | 92 | *sdi = NULL; |
| | 93 | } |
| | 94 | } |
| | 95 | |
| | 96 | return 0; |
| | 97 | } |
| | 98 | |
| | 99 | #endif |
projects / libsigrok.git / blame_incremental