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authorZhu Yi <yi.zhu@intel.com>2007-09-27 11:27:38 +0800
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 16:53:24 -0700
commit5ae212c9273deb417bcc458d1dfb54ef880e5516 (patch)
tree4f3a940e748b15889925c03ed5c9aeb25d0edb38 /drivers/net/wireless
parent93dc646adb94127ca1c2e74275a85265ec57b9af (diff)
[PATCH] iwlwifi: add read rate scale table debugfs function
This patch adds read rate scale table debugfs function for 4965 rate scaling module. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-4965-rs.c67
1 files changed, 61 insertions, 6 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
index e849ab5aa80..e3a0ccaf71f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c
@@ -121,6 +121,9 @@ struct iwl_rate_scale_priv {
u16 active_rate_basic;
struct iwl_link_quality_cmd lq;
struct iwl_scale_tbl_info lq_info[LQ_SIZE];
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *rs_sta_dbgfs_scale_table_file;
+#endif
};
static void rs_rate_scale_perform(struct iwl_priv *priv,
@@ -2000,19 +2003,71 @@ static void rs_free_sta(void *priv, void *priv_sta)
#ifdef CONFIG_MAC80211_DEBUGFS
+static int open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
+ char __user *user_buf, size_t count, loff_t *ppos)
+{
+ char buff[1024];
+ int desc = 0;
+ int i = 0;
+
+ struct iwl_rate_scale_priv *rs_priv = file->private_data;
+
+ desc += sprintf(buff+desc, "sta_id %d\n", rs_priv->lq.sta_id);
+ desc += sprintf(buff+desc, "failed=%d success=%d rate=%X\n",
+ rs_priv->total_failed, rs_priv->total_success,
+ rs_priv->active_rate);
+ desc += sprintf(buff+desc, "general:"
+ "flags=0x%X mimo-d=%d s-ant0x%x d-ant=0x%x\n",
+ rs_priv->lq.general_params.flags,
+ rs_priv->lq.general_params.mimo_delimiter,
+ rs_priv->lq.general_params.single_stream_ant_msk,
+ rs_priv->lq.general_params.dual_stream_ant_msk);
+
+ desc += sprintf(buff+desc, "agg:"
+ "time_limit=%d dist_start_th=%d frame_cnt_limit=%d\n",
+ le16_to_cpu(rs_priv->lq.agg_params.agg_time_limit),
+ rs_priv->lq.agg_params.agg_dis_start_th,
+ rs_priv->lq.agg_params.agg_frame_cnt_limit);
+
+ desc += sprintf(buff+desc,
+ "Start idx [0]=0x%x [1]=0x%x [2]=0x%x [3]=0x%x\n",
+ rs_priv->lq.general_params.start_rate_index[0],
+ rs_priv->lq.general_params.start_rate_index[1],
+ rs_priv->lq.general_params.start_rate_index[2],
+ rs_priv->lq.general_params.start_rate_index[3]);
+
+
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
+ desc += sprintf(buff+desc, " rate[%d] 0x%X\n",
+ i, le32_to_cpu(rs_priv->lq.rs_table[i].rate_n_flags));
+
+ return simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+}
+
+static const struct file_operations rs_sta_dbgfs_scale_table_ops = {
+ .read = rs_sta_dbgfs_scale_table_read,
+ .open = open_file_generic,
+};
+
static void rs_add_debugfs(void *priv, void *priv_sta,
struct dentry *dir)
{
- /* struct iwl_rate_scale_priv *rs_priv = priv_sta; */
- IWL_DEBUG_RATE("%s enter\n", __FUNCTION__);
- IWL_DEBUG_RATE("%s leave\n", __FUNCTION__);
+ struct iwl_rate_scale_priv *rs_priv = priv_sta;
+ rs_priv->rs_sta_dbgfs_scale_table_file =
+ debugfs_create_file("rate_scale_table", 0444, dir,
+ rs_priv, &rs_sta_dbgfs_scale_table_ops);
}
static void rs_remove_debugfs(void *priv, void *priv_sta)
{
- /* struct iwl_rate_scale_priv *rs_priv = priv_sta; */
- IWL_DEBUG_RATE("%s enter\n", __FUNCTION__);
- IWL_DEBUG_RATE("%s leave\n", __FUNCTION__);
+ struct iwl_rate_scale_priv *rs_priv = priv_sta;
+ debugfs_remove(rs_priv->rs_sta_dbgfs_scale_table_file);
}
#endif