220 lines
6.4 KiB
C
220 lines
6.4 KiB
C
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/*
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* Copyright (c) 2010-2011 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "htc.h"
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static struct dentry *ath9k_debugfs_root;
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static int ath9k_debugfs_open(struct inode *inode, struct file *file)
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{
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file->private_data = inode->i_private;
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return 0;
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}
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static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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struct ath9k_htc_target_stats cmd_rsp;
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char buf[512];
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unsigned int len = 0;
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int ret = 0;
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memset(&cmd_rsp, 0, sizeof(cmd_rsp));
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WMI_CMD(WMI_TGT_STATS_CMDID);
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if (ret)
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return -EINVAL;
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len += snprintf(buf + len, sizeof(buf) - len,
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"%19s : %10u\n", "TX Short Retries",
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be32_to_cpu(cmd_rsp.tx_shortretry));
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len += snprintf(buf + len, sizeof(buf) - len,
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"%19s : %10u\n", "TX Long Retries",
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be32_to_cpu(cmd_rsp.tx_longretry));
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len += snprintf(buf + len, sizeof(buf) - len,
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"%19s : %10u\n", "TX Xretries",
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be32_to_cpu(cmd_rsp.tx_xretries));
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len += snprintf(buf + len, sizeof(buf) - len,
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"%19s : %10u\n", "TX Unaggr. Xretries",
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be32_to_cpu(cmd_rsp.ht_txunaggr_xretry));
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len += snprintf(buf + len, sizeof(buf) - len,
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"%19s : %10u\n", "TX Xretries (HT)",
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be32_to_cpu(cmd_rsp.ht_tx_xretries));
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len += snprintf(buf + len, sizeof(buf) - len,
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"%19s : %10u\n", "TX Rate", priv->debug.txrate);
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if (len > sizeof(buf))
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len = sizeof(buf);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_tgt_stats = {
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.read = read_file_tgt_stats,
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.open = ath9k_debugfs_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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char buf[512];
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unsigned int len = 0;
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "Buffers queued",
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priv->debug.tx_stats.buf_queued);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "Buffers completed",
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priv->debug.tx_stats.buf_completed);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "SKBs queued",
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priv->debug.tx_stats.skb_queued);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "SKBs completed",
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priv->debug.tx_stats.skb_completed);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "SKBs dropped",
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priv->debug.tx_stats.skb_dropped);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "CAB queued",
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priv->debug.tx_stats.cab_queued);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "BE queued",
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priv->debug.tx_stats.queue_stats[WME_AC_BE]);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "BK queued",
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priv->debug.tx_stats.queue_stats[WME_AC_BK]);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "VI queued",
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priv->debug.tx_stats.queue_stats[WME_AC_VI]);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "VO queued",
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priv->debug.tx_stats.queue_stats[WME_AC_VO]);
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if (len > sizeof(buf))
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len = sizeof(buf);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_xmit = {
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.read = read_file_xmit,
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.open = ath9k_debugfs_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_recv(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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char buf[512];
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unsigned int len = 0;
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "SKBs allocated",
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priv->debug.rx_stats.skb_allocated);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "SKBs completed",
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priv->debug.rx_stats.skb_completed);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "SKBs Dropped",
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priv->debug.rx_stats.skb_dropped);
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if (len > sizeof(buf))
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len = sizeof(buf);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_recv = {
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.read = read_file_recv,
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.open = ath9k_debugfs_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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int ath9k_htc_init_debug(struct ath_hw *ah)
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{
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struct ath_common *common = ath9k_hw_common(ah);
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struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
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if (!ath9k_debugfs_root)
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return -ENOENT;
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priv->debug.debugfs_phy = debugfs_create_dir(wiphy_name(priv->hw->wiphy),
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ath9k_debugfs_root);
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if (!priv->debug.debugfs_phy)
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goto err;
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priv->debug.debugfs_tgt_stats = debugfs_create_file("tgt_stats", S_IRUSR,
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priv->debug.debugfs_phy,
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priv, &fops_tgt_stats);
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if (!priv->debug.debugfs_tgt_stats)
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goto err;
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priv->debug.debugfs_xmit = debugfs_create_file("xmit", S_IRUSR,
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priv->debug.debugfs_phy,
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priv, &fops_xmit);
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if (!priv->debug.debugfs_xmit)
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goto err;
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priv->debug.debugfs_recv = debugfs_create_file("recv", S_IRUSR,
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priv->debug.debugfs_phy,
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priv, &fops_recv);
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if (!priv->debug.debugfs_recv)
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goto err;
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return 0;
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err:
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ath9k_htc_exit_debug(ah);
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return -ENOMEM;
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}
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void ath9k_htc_exit_debug(struct ath_hw *ah)
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{
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struct ath_common *common = ath9k_hw_common(ah);
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struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
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debugfs_remove(priv->debug.debugfs_recv);
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debugfs_remove(priv->debug.debugfs_xmit);
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debugfs_remove(priv->debug.debugfs_tgt_stats);
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debugfs_remove(priv->debug.debugfs_phy);
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}
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int ath9k_htc_debug_create_root(void)
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{
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ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
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if (!ath9k_debugfs_root)
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return -ENOENT;
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return 0;
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}
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void ath9k_htc_debug_remove_root(void)
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{
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debugfs_remove(ath9k_debugfs_root);
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ath9k_debugfs_root = NULL;
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}
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