/*
* The PCI Library -- Initialization and related things
*
- * Copyright (c) 1997--2008 Martin Mares <mj@ucw.cz>
+ * Copyright (c) 1997--2018 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include "internal.h"
+#ifdef PCI_OS_WINDOWS
+#include <windows.h>
+#endif
+
static struct pci_methods *pci_methods[PCI_ACCESS_MAX] = {
NULL,
#ifdef PCI_HAVE_PM_LINUX_SYSFS
#else
NULL,
#endif
-};
-
-struct pci_access *
-pci_alloc(void)
-{
- struct pci_access *a = malloc(sizeof(struct pci_access));
- int i;
-
- memset(a, 0, sizeof(*a));
- pci_set_name_list_path(a, PCI_PATH_IDS_DIR "/" PCI_IDS, 0);
-#ifdef PCI_USE_DNS
- pci_define_param(a, "net.domain", PCI_ID_DOMAIN, "DNS domain used for resolving of ID's");
- pci_define_param(a, "net.cache_name", "~/.pciids-cache", "Name of the ID cache file");
- a->id_lookup_mode = PCI_LOOKUP_CACHE;
+#ifdef PCI_HAVE_PM_DARWIN_DEVICE
+ &pm_darwin,
+#else
+ NULL,
#endif
- for(i=0; i<PCI_ACCESS_MAX; i++)
- if (pci_methods[i] && pci_methods[i]->config)
- pci_methods[i]->config(a);
- return a;
-}
-
-void *
-pci_malloc(struct pci_access *a, int size)
-{
- void *x = malloc(size);
-
- if (!x)
- a->error("Out of memory (allocation of %d bytes failed)", size);
- return x;
-}
-
-void
-pci_mfree(void *x)
-{
- if (x)
- free(x);
-}
+#ifdef PCI_HAVE_PM_SYLIXOS_DEVICE
+ &pm_sylixos_device,
+#else
+ NULL,
+#endif
+#ifdef PCI_HAVE_PM_HURD_CONF
+ &pm_hurd,
+#else
+ NULL,
+#endif
+#ifdef PCI_HAVE_PM_WIN32_CFGMGR32
+ &pm_win32_cfgmgr32,
+#else
+ NULL,
+#endif
+#ifdef PCI_HAVE_PM_WIN32_SYSDBG
+ &pm_win32_sysdbg,
+#else
+ NULL,
+#endif
+};
-char *
-pci_strdup(struct pci_access *a, char *s)
-{
- int len = strlen(s) + 1;
- char *t = pci_malloc(a, len);
- memcpy(t, s, len);
- return t;
-}
+// If PCI_ACCESS_AUTO is selected, we probe the access methods in this order
+static int probe_sequence[] = {
+ // System-specific methods
+ PCI_ACCESS_SYS_BUS_PCI,
+ PCI_ACCESS_PROC_BUS_PCI,
+ PCI_ACCESS_FBSD_DEVICE,
+ PCI_ACCESS_AIX_DEVICE,
+ PCI_ACCESS_NBSD_LIBPCI,
+ PCI_ACCESS_OBSD_DEVICE,
+ PCI_ACCESS_DARWIN,
+ PCI_ACCESS_SYLIXOS_DEVICE,
+ PCI_ACCESS_HURD,
+ PCI_ACCESS_WIN32_CFGMGR32,
+ PCI_ACCESS_WIN32_SYSDBG,
+ // Low-level methods poking the hardware directly
+ PCI_ACCESS_I386_TYPE1,
+ PCI_ACCESS_I386_TYPE2,
+ -1,
+};
-static void
+static void PCI_NONRET
pci_generic_error(char *msg, ...)
{
va_list args;
va_start(args, msg);
fputs("pcilib: ", stderr);
vfprintf(stderr, msg, args);
+ va_end(args);
fputc('\n', stderr);
exit(1);
}
va_start(args, msg);
fputs("pcilib: ", stderr);
vfprintf(stderr, msg, args);
+ va_end(args);
fputc('\n', stderr);
}
{
}
-char *
-pci_get_param(struct pci_access *acc, char *param)
+// Memory allocation functions are safe to call if pci_access is not fully initalized or even NULL
+
+void *
+pci_malloc(struct pci_access *a, int size)
{
- struct pci_param *p;
+ void *x = malloc(size);
- for (p=acc->params; p; p=p->next)
- if (!strcmp(p->param, param))
- return p->value;
- return NULL;
+ if (!x)
+ (a && a->error ? a->error : pci_generic_error)("Out of memory (allocation of %d bytes failed)", size);
+ return x;
}
void
-pci_define_param(struct pci_access *acc, char *param, char *value, char *help)
+pci_mfree(void *x)
+{
+ if (x)
+ free(x);
+}
+
+char *
+pci_strdup(struct pci_access *a, const char *s)
{
- struct pci_param *p = pci_malloc(acc, sizeof(*p));
-
- p->next = acc->params;
- acc->params = p;
- p->param = param;
- p->value = value;
- p->value_malloced = 0;
- p->help = help;
+ int len = strlen(s) + 1;
+ char *t = pci_malloc(a, len);
+ memcpy(t, s, len);
+ return t;
}
int
-pci_set_param_internal(struct pci_access *acc, char *param, char *value, int copy)
+pci_lookup_method(char *name)
{
- struct pci_param *p;
-
- for (p=acc->params; p; p=p->next)
- if (!strcmp(p->param, param))
- {
- if (p->value_malloced)
- pci_mfree(p->value);
- p->value_malloced = copy;
- if (copy)
- p->value = pci_strdup(acc, value);
- else
- p->value = value;
- return 0;
- }
+ int i;
+
+ for (i=0; i<PCI_ACCESS_MAX; i++)
+ if (pci_methods[i] && !strcmp(pci_methods[i]->name, name))
+ return i;
return -1;
}
-int
-pci_set_param(struct pci_access *acc, char *param, char *value)
+char *
+pci_get_method_name(int index)
{
- return pci_set_param_internal(acc, param, value, 1);
+ if (index < 0 || index >= PCI_ACCESS_MAX)
+ return NULL;
+ else if (!pci_methods[index])
+ return "";
+ else
+ return pci_methods[index]->name;
}
+#ifdef PCI_OS_WINDOWS
+
static void
-pci_free_params(struct pci_access *acc)
+pci_init_name_list_path(struct pci_access *a)
{
- struct pci_param *p;
-
- while (p = acc->params)
+ if ((PCI_PATH_IDS_DIR)[0])
+ pci_set_name_list_path(a, PCI_PATH_IDS_DIR "\\" PCI_IDS, 0);
+ else
{
- acc->params = p->next;
- if (p->value_malloced)
- pci_mfree(p->value);
- pci_mfree(p);
+ char *path, *sep;
+ DWORD len;
+
+ path = pci_malloc(a, MAX_PATH+1);
+ len = GetModuleFileNameA(NULL, path, MAX_PATH+1);
+ sep = (len > 0) ? strrchr(path, '\\') : NULL;
+ if (len == 0 || len == MAX_PATH+1 || !sep || MAX_PATH-(size_t)(sep+1-path) < sizeof(PCI_IDS))
+ {
+ free(path);
+ pci_set_name_list_path(a, PCI_IDS, 0);
+ }
+ else
+ {
+ memcpy(sep+1, PCI_IDS, sizeof(PCI_IDS));
+ pci_set_name_list_path(a, path, 1);
+ }
}
}
-struct pci_param *
-pci_walk_params(struct pci_access *acc, struct pci_param *prev)
+#else
+
+static void
+pci_init_name_list_path(struct pci_access *a)
{
- /* So far, the params form a simple linked list, but this can change in the future */
- if (!prev)
- return acc->params;
- else
- return prev->next;
+ pci_set_name_list_path(a, PCI_PATH_IDS_DIR "/" PCI_IDS, 0);
+}
+
+#endif
+
+struct pci_access *
+pci_alloc(void)
+{
+ struct pci_access *a = pci_malloc(NULL, sizeof(struct pci_access));
+ int i;
+
+ memset(a, 0, sizeof(*a));
+ pci_init_name_list_path(a);
+#ifdef PCI_USE_DNS
+ pci_define_param(a, "net.domain", PCI_ID_DOMAIN, "DNS domain used for resolving of ID's");
+ pci_define_param(a, "net.cache_name", "~/.pciids-cache", "Name of the ID cache file");
+ a->id_lookup_mode = PCI_LOOKUP_CACHE;
+#endif
+#ifdef PCI_HAVE_HWDB
+ pci_define_param(a, "hwdb.disable", "0", "Do not look up names in UDEV's HWDB if non-zero");
+#endif
+ for (i=0; i<PCI_ACCESS_MAX; i++)
+ if (pci_methods[i] && pci_methods[i]->config)
+ pci_methods[i]->config(a);
+ return a;
}
void
-pci_init(struct pci_access *a)
+pci_init_v35(struct pci_access *a)
{
if (!a->error)
a->error = pci_generic_error;
else
{
unsigned int i;
- for(i=0; i<PCI_ACCESS_MAX; i++)
- if (pci_methods[i])
- {
- a->debug("Trying method %d...", i);
- if (pci_methods[i]->detect(a))
- {
- a->debug("...OK\n");
- a->methods = pci_methods[i];
- a->method = i;
- break;
- }
- a->debug("...No.\n");
- }
+ for (i=0; probe_sequence[i] >= 0; i++)
+ {
+ struct pci_methods *m = pci_methods[probe_sequence[i]];
+ if (!m)
+ continue;
+ a->debug("Trying method %s...", m->name);
+ if (m->detect(a))
+ {
+ a->debug("...OK\n");
+ a->methods = m;
+ a->method = probe_sequence[i];
+ break;
+ }
+ a->debug("...No.\n");
+ }
if (!a->methods)
a->error("Cannot find any working access method.");
}
a->methods->init(a);
}
+STATIC_ALIAS(void pci_init(struct pci_access *a), pci_init_v35(a));
+DEFINE_ALIAS(void pci_init_v30(struct pci_access *a), pci_init_v35);
+SYMBOL_VERSION(pci_init_v30, pci_init@LIBPCI_3.0);
+SYMBOL_VERSION(pci_init_v35, pci_init@@LIBPCI_3.5);
+
void
pci_cleanup(struct pci_access *a)
{
struct pci_dev *d, *e;
- for(d=a->devices; d; d=e)
+ for (d=a->devices; d; d=e)
{
e = d->next;
pci_free_dev(d);