libertas: cope with both old and new mesh TLV values
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index ddf1527..c4299ae 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -1121,14 +1121,14 @@
memset(&cmd, 0, sizeof(cmd));
cmd.action = cpu_to_le16(enable);
cmd.channel = cpu_to_le16(priv->curbssparams.channel);
- cmd.type = cpu_to_le16(0x100 + 37);
+ cmd.type = cpu_to_le16(priv->mesh_tlv);
if (enable) {
cmd.length = cpu_to_le16(priv->mesh_ssid_len);
memcpy(cmd.data, priv->mesh_ssid, priv->mesh_ssid_len);
}
- lbs_deb_cmd("mesh config channel %d SSID %s\n",
- priv->curbssparams.channel,
+ lbs_deb_cmd("mesh config enable %d TLV %x channel %d SSID %s\n",
+ enable, priv->mesh_tlv, priv->curbssparams.channel,
escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
}
diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index 60a6a51..e6f553d 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -206,6 +206,8 @@
/** current ssid/bssid related parameters*/
struct current_bss_params curbssparams;
+
+ uint16_t mesh_tlv;
u8 mesh_ssid[IW_ESSID_MAX_SIZE + 1];
u8 mesh_ssid_len;
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 5e2f329..2409df8 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -1171,8 +1171,33 @@
}
if (device_create_file(&dev->dev, &dev_attr_lbs_rtap))
lbs_pr_err("cannot register lbs_rtap attribute\n");
- if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
- lbs_pr_err("cannot register lbs_mesh attribute\n");
+
+ /* Enable mesh, if supported, and work out which TLV it uses.
+ 0x100 + 291 is an unofficial value used in 5.110.20.pXX
+ 0x100 + 37 is the official value used in 5.110.21.pXX
+ but we check them in that order because 20.pXX doesn't
+ give an error -- it just silently fails. */
+
+ /* 5.110.20.pXX firmware will fail the command if the channel
+ doesn't match the existing channel. But only if the TLV
+ is correct. If the channel is wrong, _BOTH_ versions will
+ give an error to 0x100+291, and allow 0x100+37 to succeed.
+ It's just that 5.110.20.pXX will not have done anything
+ useful */
+
+ lbs_update_channel(priv);
+ priv->mesh_tlv = 0x100 + 291;
+ if (lbs_mesh_config(priv, 1)) {
+ priv->mesh_tlv = 0x100 + 37;
+ if (lbs_mesh_config(priv, 1))
+ priv->mesh_tlv = 0;
+ }
+ if (priv->mesh_tlv) {
+ lbs_add_mesh(priv);
+
+ if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
+ lbs_pr_err("cannot register lbs_mesh attribute\n");
+ }
lbs_debugfs_init_one(priv, dev);
@@ -1201,7 +1226,8 @@
lbs_debugfs_remove_one(priv);
device_remove_file(&dev->dev, &dev_attr_lbs_rtap);
- device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
+ if (priv->mesh_tlv)
+ device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
/* Flush pending command nodes */
spin_lock_irqsave(&priv->driver_lock, flags);