From patchwork Wed Apr 13 05:56:26 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sujith Manoharan X-Patchwork-Id: 702981 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p3D5s4vZ026522 for ; Wed, 13 Apr 2011 05:54:04 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753842Ab1DMFyC (ORCPT ); Wed, 13 Apr 2011 01:54:02 -0400 Received: from mail-iy0-f174.google.com ([209.85.210.174]:62387 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752863Ab1DMFyB (ORCPT ); Wed, 13 Apr 2011 01:54:01 -0400 Received: by mail-iy0-f174.google.com with SMTP id 14so275754iyb.19 for ; Tue, 12 Apr 2011 22:54:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:from:mime-version:content-type :content-transfer-encoding:message-id:date:to:x-mailer:cc:subject; 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Wed, 13 Apr 2011 05:54:04 +0000 (UTC) From: Sujith Manoharan information Location: ath9k_htc/phy#/slot Signed-off-by: Sujith Manoharan --- drivers/net/wireless/ath/ath9k/htc.h | 1 + drivers/net/wireless/ath/ath9k/htc_drv_debug.c | 42 ++++++++++++++++++++++++ 2 files changed, 43 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 6c103ed..b9c7bec 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -338,6 +338,7 @@ struct ath9k_debug { struct dentry *debugfs_tgt_stats; struct dentry *debugfs_xmit; struct dentry *debugfs_recv; + struct dentry *debugfs_slot; struct ath_tx_stats tx_stats; struct ath_rx_stats rx_stats; u32 txrate; diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c index 91a486c..119cc54 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c @@ -244,6 +244,41 @@ static const struct file_operations fops_recv = { .llseek = default_llseek, }; +static ssize_t read_file_slot(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath9k_htc_priv *priv = file->private_data; + char buf[512]; + unsigned int len = 0; + + spin_lock_bh(&priv->tx.tx_lock); + + len += snprintf(buf + len, sizeof(buf) - len, "TX slot bitmap : "); + + len += bitmap_scnprintf(buf + len, sizeof(buf) - len, + priv->tx.tx_slot, MAX_TX_BUF_NUM); + + len += snprintf(buf + len, sizeof(buf) - len, "\n"); + + len += snprintf(buf + len, sizeof(buf) - len, + "Used slots : %d\n", + bitmap_weight(priv->tx.tx_slot, MAX_TX_BUF_NUM)); + + spin_unlock_bh(&priv->tx.tx_lock); + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + +static const struct file_operations fops_slot = { + .read = read_file_slot, + .open = ath9k_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + int ath9k_htc_init_debug(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); @@ -276,6 +311,12 @@ int ath9k_htc_init_debug(struct ath_hw *ah) if (!priv->debug.debugfs_recv) goto err; + priv->debug.debugfs_slot = debugfs_create_file("slot", S_IRUSR, + priv->debug.debugfs_phy, + priv, &fops_slot); + if (!priv->debug.debugfs_slot) + goto err; + return 0; err: @@ -288,6 +329,7 @@ void ath9k_htc_exit_debug(struct ath_hw *ah) struct ath_common *common = ath9k_hw_common(ah); struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; + debugfs_remove(priv->debug.debugfs_slot); debugfs_remove(priv->debug.debugfs_recv); debugfs_remove(priv->debug.debugfs_xmit); debugfs_remove(priv->debug.debugfs_tgt_stats);