Return-path: Received: from mga09.intel.com ([134.134.136.24]:20126 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757060AbZEHUiZ (ORCPT ); Fri, 8 May 2009 16:38:25 -0400 From: Reinette Chatre To: linville@tuxdriver.com Cc: linux-wireless@vger.kernel.org, ipw3945-devel@lists.sourceforge.net, Wey-Yi Guy , Reinette Chatre Subject: [PATCH 08/11] iwlagn: show current rate scale data in debugfs Date: Fri, 8 May 2009 13:44:43 -0700 Message-Id: <1241815486-13510-9-git-send-email-reinette.chatre@intel.com> In-Reply-To: <1241815486-13510-8-git-send-email-reinette.chatre@intel.com> References: <1241815486-13510-1-git-send-email-reinette.chatre@intel.com> <1241815486-13510-2-git-send-email-reinette.chatre@intel.com> <1241815486-13510-3-git-send-email-reinette.chatre@intel.com> <1241815486-13510-4-git-send-email-reinette.chatre@intel.com> <1241815486-13510-5-git-send-email-reinette.chatre@intel.com> <1241815486-13510-6-git-send-email-reinette.chatre@intel.com> <1241815486-13510-7-git-send-email-reinette.chatre@intel.com> <1241815486-13510-8-git-send-email-reinette.chatre@intel.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Wey-Yi Guy Add "rate_scale_data" debugfs file to show current bit rate (HT and Legacy), plus additional information (rssi, noise, tsf, beacon time stamp). Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre --- drivers/net/wireless/iwlwifi/iwl-agn-rs.c | 42 +++++++++++++++++++++++++++++ 1 files changed, 42 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c index 3fa06af..4c88e87 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c @@ -161,6 +161,7 @@ struct iwl_lq_sta { #ifdef CONFIG_MAC80211_DEBUGFS struct dentry *rs_sta_dbgfs_scale_table_file; struct dentry *rs_sta_dbgfs_stats_table_file; + struct dentry *rs_sta_dbgfs_rate_scale_data_file; struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file; u32 dbg_fixed_rate; #endif @@ -2984,6 +2985,43 @@ static const struct file_operations rs_sta_dbgfs_stats_table_ops = { .open = open_file_generic, }; +static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file, + char __user *user_buf, size_t count, loff_t *ppos) +{ + char buff[120]; + int desc = 0; + ssize_t ret; + + struct iwl_lq_sta *lq_sta = file->private_data; + struct iwl_priv *priv; + struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl]; + + priv = lq_sta->drv; + + if (is_Ht(tbl->lq_type)) + desc += sprintf(buff+desc, + "Bit Rate= %d Mb/s\n", + tbl->expected_tpt[lq_sta->last_txrate_idx]); + else + desc += sprintf(buff+desc, + "Bit Rate= %d Mb/s\n", + iwl_rates[lq_sta->last_txrate_idx].ieee >> 1); + desc += sprintf(buff+desc, + "Signal Level= %d dBm\tNoise Level= %d dBm\n", + priv->last_rx_rssi, priv->last_rx_noise); + desc += sprintf(buff+desc, + "Tsf= 0x%llx\tBeacon time= 0x%08X\n", + priv->last_tsf, priv->last_beacon_time); + + ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); + return ret; +} + +static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = { + .read = rs_sta_dbgfs_rate_scale_data_read, + .open = open_file_generic, +}; + static void rs_add_debugfs(void *priv, void *priv_sta, struct dentry *dir) { @@ -2994,6 +3032,9 @@ static void rs_add_debugfs(void *priv, void *priv_sta, lq_sta->rs_sta_dbgfs_stats_table_file = debugfs_create_file("rate_stats_table", 0600, dir, lq_sta, &rs_sta_dbgfs_stats_table_ops); + lq_sta->rs_sta_dbgfs_rate_scale_data_file = + debugfs_create_file("rate_scale_data", 0600, dir, + lq_sta, &rs_sta_dbgfs_rate_scale_data_ops); lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file = debugfs_create_u8("tx_agg_tid_enable", 0600, dir, &lq_sta->tx_agg_tid_en); @@ -3005,6 +3046,7 @@ static void rs_remove_debugfs(void *priv, void *priv_sta) struct iwl_lq_sta *lq_sta = priv_sta; debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file); debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); + debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file); debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file); } #endif -- 1.5.6.3