/*
- * $Id: names.c,v 1.1 1999/01/22 21:05:33 mj Exp $
- *
* The PCI Library -- ID to Name Translation
*
- * Copyright (c) 1997--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ * Copyright (c) 1997--2008 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include <stdio.h>
-#include <stdlib.h>
+#include <stdarg.h>
#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/stat.h>
-#include <errno.h>
#include "internal.h"
+#include "names.h"
-struct nl_entry {
- struct nl_entry *next;
- word id1, id2;
- int cat;
- byte *name;
-};
-
-#define NL_VENDOR 0
-#define NL_DEVICE 1
-#define NL_CLASS 2
-#define NL_SUBCLASS 3
-#define NL_SUBSYSTEM_VENDOR 4
-#define NL_SUBSYSTEM_DEVICE 5
-
-#define HASH_SIZE 1024
-
-static inline unsigned int nl_calc_hash(int cat, int id1, int id2)
-{
- unsigned int h;
-
- h = id1 ^ id2 ^ (cat << 5);
- h += (h >> 6);
- return h & (HASH_SIZE-1);
-}
-
-static struct nl_entry *nl_lookup(struct pci_access *a, int num, int cat, int id1, int id2)
+static char *id_lookup(struct pci_access *a, int flags, int cat, int id1, int id2, int id3, int id4)
{
- unsigned int h;
- struct nl_entry *n;
-
- if (num)
- return NULL;
- h = nl_calc_hash(cat, id1, id2);
- n = a->nl_hash[h];
- while (n && (n->id1 != id1 || n->id2 != id2 || n->cat != cat))
- n = n->next;
- return n;
-}
+ char *name;
-static int nl_add(struct pci_access *a, int cat, int id1, int id2, byte *text)
-{
- unsigned int h = nl_calc_hash(cat, id1, id2);
- struct nl_entry *n = a->nl_hash[h];
-
- while (n && (n->id1 != id1 || n->id2 != id2 || n->cat != cat))
- n = n->next;
- if (n)
- return 1;
- n = pci_malloc(a, sizeof(struct nl_entry));
- n->id1 = id1;
- n->id2 = id2;
- n->cat = cat;
- n->name = text;
- n->next = a->nl_hash[h];
- a->nl_hash[h] = n;
- return 0;
-}
-
-static void
-err_name_list(struct pci_access *a, char *msg)
-{
- a->error("%s: %s: %s\n", a->id_file_name, msg, strerror(errno));
-}
-
-static void
-parse_name_list(struct pci_access *a)
-{
- byte *p = a->nl_list;
- byte *q, *r;
- int lino = 0;
- unsigned int id1=0, id2=0;
- int cat, last_cat = -1;
-
- while (*p)
+ while (!(name = pci_id_lookup(a, flags, cat, id1, id2, id3, id4)))
{
- lino++;
- q = p;
- while (*p && *p != '\n')
+ if ((flags & PCI_LOOKUP_CACHE) && !a->id_cache_status)
{
- if (*p == '#')
- {
- *p++ = 0;
- while (*p && *p != '\n')
- p++;
- break;
- }
- if (*p == '\t')
- *p = ' ';
- p++;
+ if (pci_id_cache_load(a, flags))
+ continue;
}
- if (*p == '\n')
- *p++ = 0;
- if (!*q)
- continue;
- r = p;
- while (r > q && r[-1] == ' ')
- *--r = 0;
- r = q;
- while (*q == ' ')
- q++;
- if (r == q)
- {
- if (q[0] == 'C' && q[1] == ' ')
- {
- if (strlen(q+2) < 3 ||
- q[4] != ' ' ||
- sscanf(q+2, "%x", &id1) != 1)
- goto parserr;
- cat = last_cat = NL_CLASS;
- }
- else if (q[0] == 'S' && q[1] == ' ')
- {
- if (strlen(q+2) < 5 ||
- q[6] != ' ' ||
- sscanf(q+2, "%x", &id1) != 1)
- goto parserr;
- cat = last_cat = NL_SUBSYSTEM_VENDOR;
- q += 2;
- }
- else
+ if (flags & PCI_LOOKUP_NETWORK)
+ {
+ if (name = pci_id_net_lookup(a, cat, id1, id2, id3, id4))
{
- if (strlen(q) < 5 ||
- q[4] != ' ' ||
- sscanf(q, "%x", &id1) != 1)
- goto parserr;
- cat = last_cat = NL_VENDOR;
+ pci_id_insert(a, cat, id1, id2, id3, id4, name, SRC_NET);
+ pci_mfree(name);
+ pci_id_cache_dirty(a);
}
- id2 = 0;
- }
- else
- {
- if (sscanf(q, "%x", &id2) != 1)
- goto parserr;
- if (last_cat < 0)
- goto parserr;
- if (last_cat == NL_CLASS)
- cat = NL_SUBCLASS;
else
- cat = last_cat+1;
+ pci_id_insert(a, cat, id1, id2, id3, id4, "", SRC_NET);
+ /* We want to iterate the lookup to get the allocated ID entry from the hash */
+ continue;
}
- q += 4;
- while (*q == ' ')
- q++;
- if (!*q)
- goto parserr;
- if (nl_add(a, cat, id1, id2, q))
- a->error("%s, line %d: duplicate entry", a->id_file_name, lino);
+ return NULL;
}
- return;
-
-parserr:
- a->error("%s, line %d: parse error", a->id_file_name, lino);
+ return (name[0] ? name : NULL);
}
-static void
-load_name_list(struct pci_access *a)
+static char *
+id_lookup_subsys(struct pci_access *a, int flags, int iv, int id, int isv, int isd)
{
- int fd;
- struct stat st;
-
- fd = open(a->id_file_name, O_RDONLY);
- if (fd < 0)
- {
- a->numeric_ids = 1;
- return;
- }
- if (fstat(fd, &st) < 0)
- err_name_list(a, "stat");
- a->nl_list = pci_malloc(a, st.st_size + 1);
- if (read(fd, a->nl_list, st.st_size) != st.st_size)
- err_name_list(a, "read");
- a->nl_list[st.st_size] = 0;
- a->nl_hash = pci_malloc(a, sizeof(struct nl_entry *) * HASH_SIZE);
- bzero(a->nl_hash, sizeof(struct nl_entry *) * HASH_SIZE);
- parse_name_list(a);
- close(fd);
+ char *d = NULL;
+ if (iv > 0 && id > 0) /* Per-device lookup */
+ d = id_lookup(a, flags, ID_SUBSYSTEM, iv, id, isv, isd);
+ if (!d) /* Generic lookup */
+ d = id_lookup(a, flags, ID_GEN_SUBSYSTEM, isv, isd, 0, 0);
+ if (!d && iv == isv && id == isd) /* Check for subsystem == device */
+ d = id_lookup(a, flags, ID_DEVICE, iv, id, 0, 0);
+ return d;
}
-void
-pci_free_name_list(struct pci_access *a)
+static char *
+format_name(char *buf, int size, int flags, char *name, char *num, char *unknown)
{
- pci_mfree(a->nl_list);
- a->nl_list = NULL;
- pci_mfree(a->nl_hash);
- a->nl_hash = NULL;
+ int res;
+ if ((flags & PCI_LOOKUP_NO_NUMBERS) && !name)
+ return NULL;
+ else if (flags & PCI_LOOKUP_NUMERIC)
+ res = snprintf(buf, size, "%s", num);
+ else if (!name)
+ res = snprintf(buf, size, ((flags & PCI_LOOKUP_MIXED) ? "%s [%s]" : "%s %s"), unknown, num);
+ else if (!(flags & PCI_LOOKUP_MIXED))
+ res = snprintf(buf, size, "%s", name);
+ else
+ res = snprintf(buf, size, "%s [%s]", name, num);
+ if (res >= size && size >= 4)
+ buf[size-2] = buf[size-3] = buf[size-4] = '.';
+ else if (res < 0 || res >= size)
+ return "<pci_lookup_name: buffer too small>";
+ return buf;
}
-static int
-compound_name(struct pci_access *a, int num, char *buf, int size, int cat, int v, int i)
+static char *
+format_name_pair(char *buf, int size, int flags, char *v, char *d, char *num)
{
- if (!num)
+ int res;
+ if ((flags & PCI_LOOKUP_NO_NUMBERS) && (!v || !d))
+ return NULL;
+ if (flags & PCI_LOOKUP_NUMERIC)
+ res = snprintf(buf, size, "%s", num);
+ else if (flags & PCI_LOOKUP_MIXED)
{
- struct nl_entry *e, *e2;
-
- e = nl_lookup(a, 0, cat, v, 0);
- e2 = nl_lookup(a, 0, cat+1, v, i);
- if (!e)
- return snprintf(buf, size, "Unknown device %04x:%04x", v, i);
- else if (!e2)
- return snprintf(buf, size, "%s: Unknown device %04x", e->name, i);
- else
- return snprintf(buf, size, "%s %s", e->name, e2->name);
+ if (v && d)
+ res = snprintf(buf, size, "%s %s [%s]", v, d, num);
+ else if (!v)
+ res = snprintf(buf, size, "Device [%s]", num);
+ else /* v && !d */
+ res = snprintf(buf, size, "%s Device [%s]", v, num);
}
else
- return snprintf(buf, size, "%04x:%04x", v, i);
+ {
+ if (v && d)
+ res = snprintf(buf, size, "%s %s", v, d);
+ else if (!v)
+ res = snprintf(buf, size, "Device %s", num);
+ else /* v && !d */
+ res = snprintf(buf, size, "%s Device %s", v, num+5);
+ }
+ if (res >= size && size >= 4)
+ buf[size-2] = buf[size-3] = buf[size-4] = '.';
+ else if (res < 0 || res >= size)
+ return "<pci_lookup_name: buffer too small>";
+ return buf;
}
char *
-pci_lookup_name(struct pci_access *a, char *buf, int size, int flags, u32 arg1, u32 arg2)
+pci_lookup_name(struct pci_access *a, char *buf, int size, int flags, ...)
{
- int num = a->numeric_ids;
- int res;
- struct nl_entry *n;
+ va_list args;
+ char *v, *d, *cls, *pif;
+ int iv, id, isv, isd, icls, ipif;
+ char numbuf[16], pifbuf[32];
- if (flags & PCI_LOOKUP_NUMERIC)
- {
- flags &= PCI_LOOKUP_NUMERIC;
- num = 1;
- }
- if (!a->nl_hash && !num)
+ va_start(args, flags);
+
+ flags |= a->id_lookup_mode;
+ if (!(flags & PCI_LOOKUP_NO_NUMBERS))
{
- load_name_list(a);
- num = a->numeric_ids;
+ if (a->numeric_ids > 1)
+ flags |= PCI_LOOKUP_MIXED;
+ else if (a->numeric_ids)
+ flags |= PCI_LOOKUP_NUMERIC;
}
- switch (flags)
+ if (flags & PCI_LOOKUP_MIXED)
+ flags &= ~PCI_LOOKUP_NUMERIC;
+
+ if (!a->id_hash && !(flags & (PCI_LOOKUP_NUMERIC | PCI_LOOKUP_SKIP_LOCAL)) && !a->id_load_failed)
+ pci_load_name_list(a);
+
+ switch (flags & 0xffff)
{
case PCI_LOOKUP_VENDOR:
- if (n = nl_lookup(a, num, NL_VENDOR, arg1, 0))
- return n->name;
- else
- res = snprintf(buf, size, "%04x", arg1);
- break;
+ iv = va_arg(args, int);
+ sprintf(numbuf, "%04x", iv);
+ return format_name(buf, size, flags, id_lookup(a, flags, ID_VENDOR, iv, 0, 0, 0), numbuf, "Vendor");
case PCI_LOOKUP_DEVICE:
- if (n = nl_lookup(a, num, NL_DEVICE, arg1, arg2))
- return n->name;
- else
- res = snprintf(buf, size, "%04x", arg1);
- break;
+ iv = va_arg(args, int);
+ id = va_arg(args, int);
+ sprintf(numbuf, "%04x", id);
+ return format_name(buf, size, flags, id_lookup(a, flags, ID_DEVICE, iv, id, 0, 0), numbuf, "Device");
case PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE:
- res = compound_name(a, num, buf, size, NL_VENDOR, arg1, arg2);
- break;
- case PCI_LOOKUP_VENDOR | PCI_LOOKUP_SUBSYSTEM:
- if (n = nl_lookup(a, num, NL_SUBSYSTEM_VENDOR, arg1, 0))
- return n->name;
- else
- res = snprintf(buf, size, "%04x", arg1);
- break;
- case PCI_LOOKUP_DEVICE | PCI_LOOKUP_SUBSYSTEM:
- if (n = nl_lookup(a, num, NL_SUBSYSTEM_DEVICE, arg1, arg2))
- return n->name;
- else
- res = snprintf(buf, size, "%04x", arg1);
- break;
+ iv = va_arg(args, int);
+ id = va_arg(args, int);
+ sprintf(numbuf, "%04x:%04x", iv, id);
+ v = id_lookup(a, flags, ID_VENDOR, iv, 0, 0, 0);
+ d = id_lookup(a, flags, ID_DEVICE, iv, id, 0, 0);
+ return format_name_pair(buf, size, flags, v, d, numbuf);
+ case PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_VENDOR:
+ isv = va_arg(args, int);
+ sprintf(numbuf, "%04x", isv);
+ v = id_lookup(a, flags, ID_VENDOR, isv, 0, 0, 0);
+ return format_name(buf, size, flags, v, numbuf, "Unknown vendor");
+ case PCI_LOOKUP_SUBSYSTEM | PCI_LOOKUP_DEVICE:
+ iv = va_arg(args, int);
+ id = va_arg(args, int);
+ isv = va_arg(args, int);
+ isd = va_arg(args, int);
+ sprintf(numbuf, "%04x", isd);
+ return format_name(buf, size, flags, id_lookup_subsys(a, flags, iv, id, isv, isd), numbuf, "Device");
case PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE | PCI_LOOKUP_SUBSYSTEM:
- res = compound_name(a, num, buf, size, NL_SUBSYSTEM_VENDOR, arg1, arg2);
- break;
+ iv = va_arg(args, int);
+ id = va_arg(args, int);
+ isv = va_arg(args, int);
+ isd = va_arg(args, int);
+ v = id_lookup(a, flags, ID_VENDOR, isv, 0, 0, 0);
+ d = id_lookup_subsys(a, flags, iv, id, isv, isd);
+ sprintf(numbuf, "%04x:%04x", isv, isd);
+ return format_name_pair(buf, size, flags, v, d, numbuf);
case PCI_LOOKUP_CLASS:
- if (n = nl_lookup(a, num, NL_SUBCLASS, arg1 >> 8, arg1 & 0xff))
- return n->name;
- else if (n = nl_lookup(a, num, NL_CLASS, arg1, 0))
- res = snprintf(buf, size, "%s [%04x]", n->name, arg1);
- else
- res = snprintf(buf, size, "Class %04x", arg1);
- break;
+ icls = va_arg(args, int);
+ sprintf(numbuf, "%04x", icls);
+ cls = id_lookup(a, flags, ID_SUBCLASS, icls >> 8, icls & 0xff, 0, 0);
+ if (!cls && (cls = id_lookup(a, flags, ID_CLASS, icls >> 8, 0, 0, 0)))
+ {
+ if (!(flags & PCI_LOOKUP_NUMERIC)) /* Include full class number */
+ flags |= PCI_LOOKUP_MIXED;
+ }
+ return format_name(buf, size, flags, cls, numbuf, "Class");
+ case PCI_LOOKUP_PROGIF:
+ icls = va_arg(args, int);
+ ipif = va_arg(args, int);
+ sprintf(numbuf, "%02x", ipif);
+ pif = id_lookup(a, flags, ID_PROGIF, icls >> 8, icls & 0xff, ipif, 0);
+ if (!pif && icls == 0x0101 && !(ipif & 0x70))
+ {
+ /* IDE controllers have complex prog-if semantics */
+ sprintf(pifbuf, "%s%s%s%s%s",
+ (ipif & 0x80) ? " Master" : "",
+ (ipif & 0x08) ? " SecP" : "",
+ (ipif & 0x04) ? " SecO" : "",
+ (ipif & 0x02) ? " PriP" : "",
+ (ipif & 0x01) ? " PriO" : "");
+ pif = pifbuf;
+ if (*pif)
+ pif++;
+ }
+ return format_name(buf, size, flags, pif, numbuf, "ProgIf");
default:
return "<pci_lookup_name: invalid request>";
}
- return (res == size) ? "<too-large>" : buf;
}
projects / thirdparty / pciutils.git / blobdiff