projects / libsigrok.git / blame
| Commit | Line | Data |
|---|---|---|
| 9a5c6dcf UH |
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 <stdint.h> | |
| 21 | #include <glib.h> | |
| 22 | #include <libusb.h> | |
| 23 | #include <sigrok.h> | |
| 24 | ||
| a00ba012 | 25 | int opendev2(int device_index, struct sr_device_instance **sdi, |
| 9a5c6dcf UH |
26 | libusb_device *dev, struct libusb_device_descriptor *des, |
| 27 | int *skip, uint16_t vid, uint16_t pid, int interface) | |
| 28 | { | |
| 29 | int err; | |
| 30 | ||
| 31 | if ((err = libusb_get_device_descriptor(dev, des))) { | |
| 32 | g_warning("failed to get device descriptor: %d", err); | |
| 33 | return -1; | |
| 34 | } | |
| 35 | ||
| 36 | if (des->idVendor != vid || des->idProduct != pid) | |
| 37 | return 0; | |
| 38 | ||
| 39 | if (*skip != device_index) { | |
| 40 | /* Skip devices of this type that aren't the one we want. */ | |
| 41 | *skip += 1; | |
| 42 | return 0; | |
| 43 | } | |
| 44 | ||
| 45 | /* | |
| 46 | * Should check the bus here, since we know that already. But what are | |
| 47 | * we going to do if it doesn't match after the right number of skips? | |
| 48 | */ | |
| 49 | if (!(err = libusb_open(dev, &((*sdi)->usb->devhdl)))) { | |
| 50 | (*sdi)->usb->address = libusb_get_device_address(dev); | |
| 51 | (*sdi)->status = ST_ACTIVE; | |
| 52 | g_message("opened device %d on %d.%d interface %d", | |
| 53 | (*sdi)->index, (*sdi)->usb->bus, | |
| 54 | (*sdi)->usb->address, interface); | |
| 55 | } else { | |
| 56 | g_warning("failed to open device: %d", err); | |
| 57 | *sdi = NULL; | |
| 58 | } | |
| 59 | ||
| 60 | return 0; | |
| 61 | } | |
| 62 | ||
| a00ba012 | 63 | int opendev3(struct sr_device_instance **sdi, libusb_device *dev, |
| 9a5c6dcf UH |
64 | struct libusb_device_descriptor *des, |
| 65 | uint16_t vid, uint16_t pid, int interface) | |
| 66 | { | |
| 67 | int err; | |
| 68 | ||
| 69 | if ((err = libusb_get_device_descriptor(dev, des))) { | |
| 70 | g_warning("failed to get device descriptor: %d", err); | |
| 71 | return -1; | |
| 72 | } | |
| 73 | ||
| 74 | if (des->idVendor != vid || des->idProduct != pid) | |
| 75 | return 0; | |
| 76 | ||
| 77 | if (libusb_get_bus_number(dev) == (*sdi)->usb->bus | |
| 78 | && libusb_get_device_address(dev) == (*sdi)->usb->address) { | |
| 79 | /* Found it. */ | |
| 80 | if (!(err = libusb_open(dev, &((*sdi)->usb->devhdl)))) { | |
| 81 | (*sdi)->status = ST_ACTIVE; | |
| 82 | g_message("opened device %d on %d.%d interface %d", | |
| 83 | (*sdi)->index, (*sdi)->usb->bus, | |
| 84 | (*sdi)->usb->address, interface); | |
| 85 | } else { | |
| 86 | g_warning("failed to open device: %d", err); | |
| 87 | *sdi = NULL; | |
| 88 | } | |
| 89 | } | |
| 90 | ||
| 91 | return 0; | |
| 92 | } |