From 020f3d0001cb249ceae623c1a7ae0c196326ef3f Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Wed, 12 Dec 2007 23:29:13 -0500 Subject: [PATCH] libertas: cope with both old and new mesh TLV values Signed-off-by: David Woodhouse Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/cmd.c | 6 +++--- drivers/net/wireless/libertas/dev.h | 2 ++ drivers/net/wireless/libertas/main.c | 32 +++++++++++++++++++++++++--- 3 files changed, 34 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c index ddf1527124..c4299ae177 100644 --- a/drivers/net/wireless/libertas/cmd.c +++ b/drivers/net/wireless/libertas/cmd.c @@ -1121,14 +1121,14 @@ int lbs_mesh_config(struct lbs_private *priv, int enable) 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 60a6a51d0d..e6f553d5d2 100644 --- a/drivers/net/wireless/libertas/dev.h +++ b/drivers/net/wireless/libertas/dev.h @@ -206,6 +206,8 @@ struct lbs_private { /** 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 5e2f3296be..2409df85c2 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -1171,8 +1171,33 @@ int lbs_start_card(struct lbs_private *priv) } 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 @@ int lbs_stop_card(struct lbs_private *priv) 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); -- 2.39.5