diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Makefile.am | 24 | ||||
-rw-r--r-- | lib/iface.c | 164 | ||||
-rw-r--r-- | lib/libusb.c | 141 | ||||
-rw-r--r-- | lib/str.c | 37 |
4 files changed, 366 insertions, 0 deletions
diff --git a/lib/Makefile.am b/lib/Makefile.am new file mode 100644 index 0000000..1d31032 --- /dev/null +++ b/lib/Makefile.am @@ -0,0 +1,24 @@ +# Copyright (C) 2009-2010 Nikolai Kondrashov +# +# This file is part of hid-dump. +# +# Hid-dump is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# Hid-dump is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with hid-dump; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +noinst_LTLIBRARIES = libhid_dump.la + +libhid_dump_la_SOURCES = \ + iface.c \ + libusb.c \ + str.c diff --git a/lib/iface.c b/lib/iface.c new file mode 100644 index 0000000..4589c4a --- /dev/null +++ b/lib/iface.c @@ -0,0 +1,164 @@ +/** @file + * @brief hid-dump - interface + * + * Copyright (C) 2010 Nikolai Kondrashov + * + * This file is part of hid-dump. + * + * Hid-dump is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Hid-dump is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with hid-dump; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * @author Nikolai Kondrashov <spbnick@gmail.com> + * + * @(#) $Id$ + */ + +#include "hid_dump/iface.h" +#include <assert.h> +#include <stdlib.h> +#include <stdio.h> + +hid_dump_iface * +hid_dump_iface_new(uint8_t number) +{ + hid_dump_iface *iface; + + iface = malloc(sizeof(*iface)); + if (iface == NULL) + return NULL; + + iface->next = NULL; + iface->number = number; + iface->detached = false; + + return iface; +} + + +bool +hid_dump_iface_list_valid(const hid_dump_iface *list) +{ + for (; list != NULL; list = list->next) + if (!hid_dump_iface_valid(list)) + return false; + + return true; +} + + +void +hid_dump_iface_list_free(hid_dump_iface *list) +{ + hid_dump_iface *next; + + for (; list != NULL; list = next) + { + next = list->next; + free(list); + } +} + + +enum libusb_error +hid_dump_iface_list_new_by_class(libusb_device *dev, + uint8_t iface_class, + hid_dump_iface **plist) +{ + enum libusb_error err = LIBUSB_ERROR_OTHER; + struct libusb_config_descriptor *config = NULL; + const struct libusb_interface *libusb_iface; + hid_dump_iface *list = NULL; + hid_dump_iface *last = NULL; + hid_dump_iface *iface; + + assert(dev != NULL); + + /* Retrieve active configuration descriptor */ + err = libusb_get_active_config_descriptor(dev, &config); + if (err != LIBUSB_SUCCESS) + goto cleanup; + + /* Build the matching interface list */ + for (libusb_iface = config->interface; + libusb_iface - config->interface < config->bNumInterfaces; + libusb_iface++) + if (libusb_iface->num_altsetting == 1 && + libusb_iface->altsetting->bInterfaceClass == iface_class) + { + fprintf(stderr, "%d\n", + libusb_iface->altsetting->bInterfaceNumber); + + iface = hid_dump_iface_new(libusb_iface->altsetting->bInterfaceNumber); + if (iface == NULL) + { + err = LIBUSB_ERROR_NO_MEM; + goto cleanup; + } + + if (last == NULL) + list = iface; + else + last->next = iface; + last = iface; + } + + /* Output the resulting list, if requested */ + if (plist != NULL) + { + *plist = list; + list = NULL; + } + +cleanup: + + hid_dump_iface_list_free(list); + + if (config != NULL) + libusb_free_config_descriptor(config); + + return err; +} + + +hid_dump_iface * +hid_dump_iface_list_fltr_by_num(hid_dump_iface *list, + int number) +{ + hid_dump_iface *prev; + hid_dump_iface *iface; + hid_dump_iface *next; + + assert(hid_dump_iface_list_valid(list)); + assert(number < UINT8_MAX); + + if (number < 0) + return list; + + for (prev = NULL, iface = list; iface != NULL; iface = next) + { + next = iface->next; + if (iface->number == (uint8_t)number) + prev = iface; + else + { + if (prev == NULL) + list = next; + else + prev->next = next; + free(iface); + } + } + + return list; +} diff --git a/lib/libusb.c b/lib/libusb.c new file mode 100644 index 0000000..f56c88e --- /dev/null +++ b/lib/libusb.c @@ -0,0 +1,141 @@ +/** @file + * @brief hid-dump - libusb API extensions + * + * Copyright (C) 2010 Nikolai Kondrashov + * + * This file is part of hid-dump. + * + * Hid-dump is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Hid-dump is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with hid-dump; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * @author Nikolai Kondrashov <spbnick@gmail.com> + * + * @(#) $Id$ + */ + +#include "hid_dump/libusb.h" +#include <stdbool.h> + +const char * +libusb_strerror(enum libusb_error err) +{ + switch (err) + { + case LIBUSB_SUCCESS: + return "Success"; +#define MAP(_name, _desc) \ + case LIBUSB_ERROR_##_name: \ + return _desc " (" #_name ")" + MAP(IO, + "Input/output error"); + MAP(INVALID_PARAM, + "Invalid parameter"); + MAP(ACCESS, + "Access denied (insufficient permissions)"); + MAP(NO_DEVICE, + "No such device (it may have been disconnected)"); + MAP(NOT_FOUND, + "Entity not found"); + MAP(BUSY, + "Resource busy"); + MAP(TIMEOUT, + "Operation timed out"); + MAP(OVERFLOW, + "Overflow"); + MAP(PIPE, + "Pipe error"); + MAP(INTERRUPTED, + "System call interrupted (perhaps due to signal)"); + MAP(NO_MEM, + "Insufficient memory"); + MAP(NOT_SUPPORTED, + "Operation not supported or unimplemented on this platform"); + MAP(OTHER, "Other error"); +#undef MAP + default: + return "Unknown error code"; + } +} + + +enum libusb_error +libusb_open_device_with_bus_dev(libusb_context *ctx, + uint8_t bus_num, + uint8_t dev_addr, + libusb_device_handle **phandle) +{ + enum libusb_error err = LIBUSB_ERROR_OTHER; + libusb_device **list = NULL; + ssize_t num; + ssize_t idx; + libusb_device *dev; + libusb_device_handle *handle = NULL; + + /* Retrieve device list */ + num = libusb_get_device_list(ctx, &list); + if (num == LIBUSB_ERROR_NO_MEM) + { + err = num; + goto cleanup; + } + + /* Find and open the device */ + for (idx = 0; idx < num; idx++) + { + dev = list[idx]; + + if (libusb_get_bus_number(dev) == bus_num && + libusb_get_device_address(dev) == dev_addr) + { + err = libusb_open(dev, &handle); + if (err != LIBUSB_SUCCESS) + goto cleanup; + break; + } + } + + /* Free the device list freeing unused devices */ + libusb_free_device_list(list, true); + list = NULL; + + /* Check if the device is found */ + if (handle == NULL) + { + err = LIBUSB_ERROR_NO_DEVICE; + goto cleanup; + } + + /* Output the device handle */ + if (phandle != NULL) + { + *phandle = handle; + handle = NULL; + } + + err = LIBUSB_SUCCESS; + +cleanup: + + /* Free the device */ + if (handle != NULL) + libusb_close(handle); + + /* Free device list along with devices */ + if (list != NULL) + libusb_free_device_list(list, true); + + return err; +} + + diff --git a/lib/str.c b/lib/str.c new file mode 100644 index 0000000..26e5fcf --- /dev/null +++ b/lib/str.c @@ -0,0 +1,37 @@ +/** @file + * @brief hid-dump - string utilities + * + * Copyright (C) 2010 Nikolai Kondrashov + * + * This file is part of hid-dump. + * + * Hid-dump is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Hid-dump is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with hid-dump; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + * @author Nikolai Kondrashov <spbnick@gmail.com> + * + * @(#) $Id$ + */ + +#include "hid_dump/str.h" +#include <ctype.h> + +bool +hid_dump_strisblank(const char *str) +{ + for (; *str != '\0'; str++) + if (!isblank(*str)) + return false; + return true; +} |