[package] iwinfo: fix model detection on legacy atheros

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29423 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/iwinfo/src/iwinfo_madwifi.c b/package/iwinfo/src/iwinfo_madwifi.c
index feb98e2..50793c4 100644 (file)
--- a/package/iwinfo/src/iwinfo_madwifi.c
+++ b/package/iwinfo/src/iwinfo_madwifi.c
@@ -988,9 +988,76 @@ int madwifi_get_mbssid_support(const char *ifname, int *buf)
        return -1;
 }
 
+static void madwifi_proc_file(const char *ifname, const char *file,
+                                                         char *buf, int blen)
+{
+       int fd;
+       const char *wifi = madwifi_isvap(ifname, NULL);
+
+       if (!wifi && madwifi_iswifi(ifname))
+               wifi = ifname;
+
+       snprintf(buf, blen, "/proc/sys/dev/%s/%s", wifi, file);
+
+       if ((fd = open(buf, O_RDONLY)) > 0)
+       {
+               if (read(fd, buf, blen) > 1)
+                       buf[strlen(buf)-1] = 0;
+               else
+                       buf[0] = 0;
+
+               close(fd);
+       }
+       else
+       {
+               buf[0] = 0;
+       }
+}
+
+static int madwifi_startswith(const char *a, const char *b)
+{
+       int l1 = strlen(a);
+       int l2 = strlen(b);
+       int ln = (l1 < l2) ? l1 : l2;
+       return !strncmp(a, b, ln);
+}
+
 int madwifi_get_hardware_id(const char *ifname, char *buf)
 {
-       return wext_get_hardware_id(ifname, buf);
+       char vendor[64];
+       char device[64];
+       struct iwinfo_hardware_id *ids;
+       struct iwinfo_hardware_entry *e;
+
+       if (wext_get_hardware_id(ifname, buf))
+       {
+               ids = (struct iwinfo_hardware_id *)buf;
+               madwifi_proc_file(ifname, "dev_vendor", vendor, sizeof(vendor));
+               madwifi_proc_file(ifname, "dev_name",   device, sizeof(device));
+
+               if (vendor[0] && device[0])
+               {
+                       for (e = IWINFO_HARDWARE_ENTRIES; e->vendor_name; e++)
+                       {
+                               if (!madwifi_startswith(vendor, e->vendor_name))
+                                       continue;
+
+                               if (!madwifi_startswith(device, e->device_name))
+                                       continue;
+
+                               ids->vendor_id = e->vendor_id;
+                               ids->device_id = e->device_id;
+                               ids->subsystem_vendor_id = e->subsystem_vendor_id;
+                               ids->subsystem_device_id = e->subsystem_device_id;
+
+                               return 0;
+                       }
+               }
+
+               return -1;
+       }
+
+       return 0;
 }
 
 int madwifi_get_hardware_name(const char *ifname, char *buf)