Split lspci to multiple source files.

1 files changed, 194 insertions, 0 deletions

diff --git a/ls-kernel.c b/ls-kernel.c
new file mode 100644
index 0000000..41afefe
--- /dev/null
+++ b/ls-kernel.c
@@ -0,0 +1,194 @@
+/*
+ *	The PCI Utilities -- Show Kernel Drivers
+ *
+ *	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 <string.h>
+#include <unistd.h>
+
+#include "lspci.h"
+
+#ifdef PCI_OS_LINUX
+
+#include <sys/utsname.h>
+
+struct pcimap_entry {
+  struct pcimap_entry *next;
+  unsigned int vendor, device;
+  unsigned int subvendor, subdevice;
+  unsigned int class, class_mask;
+  char module[1];
+};
+
+static struct pcimap_entry *pcimap_head;
+
+static void
+load_pcimap(void)
+{
+  static int tried_pcimap;
+  struct utsname uts;
+  char *name, line[1024];
+  FILE *f;
+
+  if (tried_pcimap)
+    return;
+  tried_pcimap = 1;
+
+  if (name = opt_pcimap)
+    {
+      f = fopen(name, "r");
+      if (!f)
+	die("Cannot open pcimap file %s: %m", name);
+    }
+  else
+    {
+      if (uname(&uts) < 0)
+	die("uname() failed: %m");
+      name = alloca(64 + strlen(uts.release));
+      sprintf(name, "/lib/modules/%s/modules.pcimap", uts.release);
+      f = fopen(name, "r");
+      if (!f)
+	return;
+    }
+
+  while (fgets(line, sizeof(line), f))
+    {
+      char *c = strchr(line, '\n');
+      struct pcimap_entry *e;
+
+      if (!c)
+	die("Unterminated or too long line in %s", name);
+      *c = 0;
+      if (!line[0] || line[0] == '#')
+	continue;
+
+      c = line;
+      while (*c && *c != ' ' && *c != '\t')
+	c++;
+      if (!*c)
+	continue;	/* FIXME: Emit warnings! */
+      *c++ = 0;
+
+      e = xmalloc(sizeof(*e) + strlen(line));
+      if (sscanf(c, "%i%i%i%i%i%i",
+		 &e->vendor, &e->device,
+		 &e->subvendor, &e->subdevice,
+		 &e->class, &e->class_mask) != 6)
+	continue;
+      e->next = pcimap_head;
+      pcimap_head = e;
+      strcpy(e->module, line);
+    }
+  fclose(f);
+}
+
+static int
+match_pcimap(struct device *d, struct pcimap_entry *e)
+{
+  struct pci_dev *dev = d->dev;
+  unsigned int class = get_conf_long(d, PCI_REVISION_ID) >> 8;
+  word subv, subd;
+
+#define MATCH(x, y) ((y) > 0xffff || (x) == (y))
+  get_subid(d, &subv, &subd);
+  return
+    MATCH(dev->vendor_id, e->vendor) &&
+    MATCH(dev->device_id, e->device) &&
+    MATCH(subv, e->subvendor) &&
+    MATCH(subd, e->subdevice) &&
+    (class & e->class_mask) == e->class;
+#undef MATCH
+}
+
+#define DRIVER_BUF_SIZE 1024
+
+static char *
+find_driver(struct device *d, char *buf)
+{
+  struct pci_dev *dev = d->dev;
+  char name[1024], *drv, *base;
+  int n;
+
+  if (dev->access->method != PCI_ACCESS_SYS_BUS_PCI)
+    return NULL;
+
+  base = pci_get_param(dev->access, "sysfs.path");
+  if (!base || !base[0])
+    return NULL;
+
+  n = snprintf(name, sizeof(name), "%s/devices/%04x:%02x:%02x.%d/driver",
+	       base, dev->domain, dev->bus, dev->dev, dev->func);
+  if (n < 0 || n >= (int)sizeof(name))
+    die("show_driver: sysfs device name too long, why?");
+
+  n = readlink(name, buf, DRIVER_BUF_SIZE);
+  if (n < 0)
+    return NULL;
+  if (n >= DRIVER_BUF_SIZE)
+    return "<name-too-long>";
+  buf[n] = 0;
+
+  if (drv = strrchr(buf, '/'))
+    return drv+1;
+  else
+    return buf;
+}
+
+void
+show_kernel(struct device *d)
+{
+  char buf[DRIVER_BUF_SIZE];
+  char *driver;
+  struct pcimap_entry *e, *last = NULL;
+
+  if (driver = find_driver(d, buf))
+    printf("\tKernel driver in use: %s\n", driver);
+
+  load_pcimap();
+  for (e=pcimap_head; e; e=e->next)
+    if (match_pcimap(d, e) && (!last || strcmp(last->module, e->module)))
+      {
+	printf("%s %s", (last ? "," : "\tKernel modules:"), e->module);
+	last = e;
+      }
+  if (last)
+    putchar('\n');
+}
+
+void
+show_kernel_machine(struct device *d)
+{
+  char buf[DRIVER_BUF_SIZE];
+  char *driver;
+  struct pcimap_entry *e, *last = NULL;
+
+  if (driver = find_driver(d, buf))
+    printf("Driver:\t%s\n", driver);
+
+  load_pcimap();
+  for (e=pcimap_head; e; e=e->next)
+    if (match_pcimap(d, e) && (!last || strcmp(last->module, e->module)))
+      {
+	printf("Module:\t%s\n", e->module);
+	last = e;
+      }
+}
+
+#else
+
+void
+show_kernel(struct device *d UNUSED)
+{
+}
+
+void
+show_kernel_machine(struct device *d UNUSED)
+{
+}
+
+#endif
+