From d3114e0edc60508fc1e44e6cd2733fb2a97cdaca Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 20:30:56 +0200 Subject: Adding upstream version 1:3.11.1. Signed-off-by: Daniel Baumann --- lib/names-hwdb.c | 118 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 lib/names-hwdb.c (limited to 'lib/names-hwdb.c') diff --git a/lib/names-hwdb.c b/lib/names-hwdb.c new file mode 100644 index 0000000..71e7229 --- /dev/null +++ b/lib/names-hwdb.c @@ -0,0 +1,118 @@ +/* + * The PCI Library -- Looking up Names via UDEV and HWDB + * + * Copyright (c) 2013--2014 Tom Gundersen + * Copyright (c) 2014 Martin Mares + * + * Can be freely distributed and used under the terms of the GNU GPL v2+. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include + +#include "internal.h" +#include "names.h" + +#ifdef PCI_HAVE_HWDB + +#include +#include +#include + +char * +pci_id_hwdb_lookup(struct pci_access *a, int cat, int id1, int id2, int id3, int id4) +{ + char modalias[64]; + const char *key = NULL; + + const char *disabled = pci_get_param(a, "hwdb.disable"); + if (disabled && atoi(disabled)) + return NULL; + + switch (cat) + { + case ID_VENDOR: + sprintf(modalias, "pci:v%08X*", id1); + key = "ID_VENDOR_FROM_DATABASE"; + break; + case ID_DEVICE: + sprintf(modalias, "pci:v%08Xd%08X*", id1, id2); + key = "ID_MODEL_FROM_DATABASE"; + break; + case ID_SUBSYSTEM: + sprintf(modalias, "pci:v%08Xd%08Xsv%08Xsd%08X*", id1, id2, id3, id4); + key = "ID_MODEL_FROM_DATABASE"; + break; + case ID_GEN_SUBSYSTEM: + sprintf(modalias, "pci:v*d*sv%08Xsd%08X*", id1, id2); + key = "ID_MODEL_FROM_DATABASE"; + break; + case ID_CLASS: + sprintf(modalias, "pci:v*d*sv*sd*bc%02X*", id1); + key = "ID_PCI_CLASS_FROM_DATABASE"; + break; + case ID_SUBCLASS: + sprintf(modalias, "pci:v*d*sv*sd*bc%02Xsc%02X*", id1, id2); + key = "ID_PCI_SUBCLASS_FROM_DATABASE"; + break; + case ID_PROGIF: + sprintf(modalias, "pci:v*d*sv*sd*bc%02Xsc%02Xi%02X*", id1, id2, id3); + key = "ID_PCI_INTERFACE_FROM_DATABASE"; + break; + } + + if (key) + { + if (!a->id_udev_hwdb) + { + a->debug("Initializing UDEV HWDB\n"); + a->id_udev = udev_new(); + a->id_udev_hwdb = udev_hwdb_new(a->id_udev); + } + + struct udev_list_entry *entry; + udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(a->id_udev_hwdb, modalias, 0)) + { + const char *entry_name = udev_list_entry_get_name(entry); + if (entry_name && !strcmp(entry_name, key)) + { + const char *entry_value = udev_list_entry_get_value(entry); + if (entry_value) + return pci_strdup(a, entry_value); + } + } + } + + return NULL; +} + +void +pci_id_hwdb_free(struct pci_access *a) +{ + if (a->id_udev_hwdb) + { + udev_hwdb_unref(a->id_udev_hwdb); + a->id_udev_hwdb = NULL; + } + if (a->id_udev) + { + udev_unref(a->id_udev); + a->id_udev = NULL; + } +} + +#else + +char * +pci_id_hwdb_lookup(struct pci_access *a UNUSED, int cat UNUSED, int id1 UNUSED, int id2 UNUSED, int id3 UNUSED, int id4 UNUSED) +{ + return NULL; +} + +void +pci_id_hwdb_free(struct pci_access *a UNUSED) +{ +} + +#endif -- cgit v1.2.3