/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- * * Copyright (C) 2016 Richard Hughes * * Licensed under the GNU General Public License Version 2 * * This program 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. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "config.h" #include #include "fu-plugin.h" #include "fu-plugin-vfuncs.h" static void fu_plugin_usb_device_added_cb (GUsbContext *ctx, GUsbDevice *device, FuPlugin *plugin) { const gchar *platform_id = NULL; guint8 idx = 0x00; g_autofree gchar *devid1 = NULL; g_autofree gchar *devid2 = NULL; g_autofree gchar *product = NULL; g_autofree gchar *version = NULL; g_autoptr(AsProfile) profile = as_profile_new (); g_autoptr(AsProfileTask) ptask = NULL; g_autoptr(FuDevice) dev = NULL; g_autoptr(GError) error = NULL; /* ignore hubs */ if (g_usb_device_get_device_class (device) == G_USB_DEVICE_CLASS_HUB) return; ptask = as_profile_start (profile, "FuPluginUsb:added{%04x:%04x}", g_usb_device_get_vid (device), g_usb_device_get_pid (device)); g_assert (ptask != NULL); /* is already in database */ platform_id = g_usb_device_get_platform_id (device); dev = fu_plugin_cache_lookup (plugin, platform_id); if (dev != NULL) { g_debug ("ignoring duplicate %s", platform_id); return; } /* try to get the version without claiming interface */ if (!g_usb_device_open (device, &error)) { g_debug ("Failed to open: %s", error->message); return; } /* insert to hash if valid */ dev = fu_device_new (); fu_device_set_id (dev, platform_id); /* get product */ idx = g_usb_device_get_product_index (device); if (idx != 0x00) { g_autoptr(AsProfileTask) ptask2 = NULL; ptask2 = as_profile_start_literal (profile, "FuPluginUsb:get-string-desc"); g_assert (ptask2 != NULL); product = g_usb_device_get_string_descriptor (device, idx, NULL); } if (product == NULL) { g_debug ("no product string descriptor"); g_usb_device_close (device, NULL); return; } fu_device_set_name (dev, product); /* get version number, falling back to the USB device release */ idx = g_usb_device_get_custom_index (device, G_USB_DEVICE_CLASS_VENDOR_SPECIFIC, 'F', 'W', NULL); if (idx != 0x00) version = g_usb_device_get_string_descriptor (device, idx, NULL); if (version == NULL) { guint16 release; release = g_usb_device_get_release (device); version = as_utils_version_from_uint16 (release, AS_VERSION_PARSE_FLAG_NONE); } fu_device_set_version (dev, version); /* get GUID from the descriptor if set */ idx = g_usb_device_get_custom_index (device, G_USB_DEVICE_CLASS_VENDOR_SPECIFIC, 'G', 'U', NULL); if (idx != 0x00) { g_autofree gchar *guid = NULL; guid = g_usb_device_get_string_descriptor (device, idx, NULL); fu_device_add_guid (dev, guid); } /* also fall back to the USB VID:PID hash */ devid1 = g_strdup_printf ("USB\\VID_%04X&PID_%04X", g_usb_device_get_vid (device), g_usb_device_get_pid (device)); fu_device_add_guid (dev, devid1); devid2 = g_strdup_printf ("USB\\VID_%04X&PID_%04X&REV_%04X", g_usb_device_get_vid (device), g_usb_device_get_pid (device), g_usb_device_get_release (device)); fu_device_add_guid (dev, devid2); /* we're done here */ if (!g_usb_device_close (device, &error)) g_debug ("Failed to close: %s", error->message); /* use a small delay for hotplugging so that other, better, plugins * can claim this interface and add the FuDevice */ fu_plugin_device_add_delay (plugin, dev); /* insert to hash */ fu_plugin_cache_add (plugin, platform_id, dev); } static void fu_plugin_usb_device_removed_cb (GUsbContext *ctx, GUsbDevice *device, FuPlugin *plugin) { FuDevice *dev; const gchar *platform_id = NULL; /* already in database */ platform_id = g_usb_device_get_platform_id (device); dev = fu_plugin_cache_lookup (plugin, platform_id); if (dev == NULL) return; fu_plugin_device_remove (plugin, dev); fu_plugin_cache_remove (plugin, platform_id); } gboolean fu_plugin_startup (FuPlugin *plugin, GError **error) { GUsbContext *usb_ctx = fu_plugin_get_usb_context (plugin); g_signal_connect (usb_ctx, "device-added", G_CALLBACK (fu_plugin_usb_device_added_cb), plugin); g_signal_connect (usb_ctx, "device-removed", G_CALLBACK (fu_plugin_usb_device_removed_cb), plugin); return TRUE; }