iwlwifi: Add debugfs to iwl core
This patch adds debugfs support to iwl core currently only iwl4965 is supported Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Tomas Winkler
John W. Linville
parent
19758bef09
commit
712b6cf57a
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@ -76,6 +76,12 @@ config IWLWIFI_DEBUG
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as the debug information can assist others in helping you resolve
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any problems you may encounter.
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config IWLWIFI_DEBUGFS
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bool "Iwlwifi debugfs support"
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depends on IWLCORE && IWLWIFI_DEBUG && MAC80211_DEBUGFS
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---help---
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Enable creation of debugfs files for the iwlwifi drivers.
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config IWL3945
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tristate "Intel PRO/Wireless 3945ABG/BG Network Connection"
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depends on PCI && MAC80211 && WLAN_80211 && EXPERIMENTAL
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@ -1,6 +1,10 @@
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obj-$(CONFIG_IWLCORE) += iwlcore.o
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iwlcore-objs = iwl-core.o iwl-eeprom.o
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ifeq ($(CONFIG_IWLWIFI_DEBUGFS),y)
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iwlcore-objs += iwl-debugfs.o
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endif
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obj-$(CONFIG_IWL3945) += iwl3945.o
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iwl3945-objs = iwl3945-base.o iwl-3945.o iwl-3945-rs.o
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@ -1212,7 +1212,11 @@ struct iwl_priv {
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/* debugging info */
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u32 framecnt_to_us;
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atomic_t restrict_refcnt;
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#endif
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#ifdef CONFIG_IWLWIFI_DEBUGFS
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/* debugfs */
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struct iwl_debugfs *dbgfs;
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#endif /* CONFIG_IWLWIFI_DEBUGFS */
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#endif /* CONFIG_IWLWIFI_DEBUG */
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struct work_struct txpower_work;
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#ifdef CONFIG_IWL4965_SENSITIVITY
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@ -30,6 +30,7 @@
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#include <linux/module.h>
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#include <linux/version.h>
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struct iwl_priv; /* FIXME: remove */
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#include "iwl-debug.h"
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#include "iwl-eeprom.h"
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#include "iwl-core.h"
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@ -37,7 +38,7 @@
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MODULE_DESCRIPTION("iwl core");
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MODULE_VERSION(IWLWIFI_VERSION);
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MODULE_AUTHOR(DRV_COPYRIGHT);
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MODULE_LICENSE("GPL/BSD");
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MODULE_LICENSE("GPL");
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#ifdef CONFIG_IWLWIFI_DEBUG
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u32 iwl_debug_level;
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@ -49,8 +49,27 @@ static inline void iwl_print_hex_dump(int level, void *p, u32 len)
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print_hex_dump(KERN_DEBUG, "iwl data: ", DUMP_PREFIX_OFFSET, 16, 1,
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p, len, 1);
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}
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#else
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#ifdef CONFIG_IWLWIFI_DEBUGFS
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struct iwl_debugfs {
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const char *name;
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struct dentry *dir_drv;
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struct dentry *dir_data;
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struct dir_data_files{
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struct dentry *file_sram;
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struct dentry *file_stations;
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struct dentry *file_rx_statistics;
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struct dentry *file_tx_statistics;
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} dbgfs_data_files;
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u32 sram_offset;
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u32 sram_len;
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};
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int iwl_dbgfs_register(struct iwl_priv *priv, const char *name);
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void iwl_dbgfs_unregister(struct iwl_priv *priv);
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#endif
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#else
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static inline void IWL_DEBUG(int level, const char *fmt, ...)
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{
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}
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@ -64,6 +83,16 @@ static inline void iwl_print_hex_dump(int level, void *p, u32 len)
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#ifndef CONFIG_IWLWIFI_DEBUGFS
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static inline int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
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{
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return 0;
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}
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static inline void iwl_dbgfs_unregister(struct iwl_priv *priv)
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{
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}
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#endif /* CONFIG_IWLWIFI_DEBUGFS */
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/*
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* To use the debug system;
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*
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@ -0,0 +1,319 @@
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/******************************************************************************
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* Contact Information:
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* Tomas Winkler <tomas.winkler@intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*****************************************************************************/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/debugfs.h>
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#include <linux/ieee80211.h>
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#include <net/mac80211.h>
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#include "iwl-4965.h"
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#include "iwl-debug.h"
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#include "iwl-4965-io.h"
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/* create and remove of files */
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#define DEBUGFS_ADD_DIR(name, parent) do { \
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dbgfs->dir_##name = debugfs_create_dir(#name, parent); \
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if (!(dbgfs->dir_##name)) \
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goto err; \
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} while (0)
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#define DEBUGFS_ADD_FILE(name, parent) do { \
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dbgfs->dbgfs_##parent##_files.file_##name = \
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debugfs_create_file(#name, 0644, dbgfs->dir_##parent, priv, \
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&iwl_dbgfs_##name##_ops); \
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if (!(dbgfs->dbgfs_##parent##_files.file_##name)) \
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goto err; \
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} while (0)
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#define DEBUGFS_REMOVE(name) do { \
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debugfs_remove(name); \
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name = NULL; \
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} while (0);
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/* file operation */
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#define DEBUGFS_READ_FUNC(name) \
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static ssize_t iwl_dbgfs_##name##_read(struct file *file, \
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char __user *user_buf, \
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size_t count, loff_t *ppos);
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#define DEBUGFS_WRITE_FUNC(name) \
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static ssize_t iwl_dbgfs_##name##_write(struct file *file, \
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const char __user *user_buf, \
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size_t count, loff_t *ppos);
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static int iwl_dbgfs_open_file_generic(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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#define DEBUGFS_READ_FILE_OPS(name) \
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DEBUGFS_READ_FUNC(name); \
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static const struct file_operations iwl_dbgfs_##name##_ops = { \
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.read = iwl_dbgfs_##name##_read, \
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.open = iwl_dbgfs_open_file_generic, \
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};
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#define DEBUGFS_READ_WRITE_FILE_OPS(name) \
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DEBUGFS_READ_FUNC(name); \
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DEBUGFS_WRITE_FUNC(name); \
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static const struct file_operations iwl_dbgfs_##name##_ops = { \
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.write = iwl_dbgfs_##name##_write, \
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.read = iwl_dbgfs_##name##_read, \
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.open = iwl_dbgfs_open_file_generic, \
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};
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static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos) {
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struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
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char buf[256];
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int pos = 0;
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pos += sprintf(buf+pos, "mgmt: %u\n", priv->tx_stats[0].cnt);
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pos += sprintf(buf+pos, "ctrl: %u\n", priv->tx_stats[1].cnt);
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pos += sprintf(buf+pos, "data: %u\n", priv->tx_stats[2].cnt);
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return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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}
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static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos) {
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struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
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char buf[256];
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int pos = 0;
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pos += sprintf(buf+pos, "mgmt: %u\n", priv->rx_stats[0].cnt);
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pos += sprintf(buf+pos, "ctrl: %u\n", priv->rx_stats[1].cnt);
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pos += sprintf(buf+pos, "data: %u\n", priv->rx_stats[2].cnt);
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return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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}
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#define BYTE1_MASK 0x000000ff;
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#define BYTE2_MASK 0x0000ffff;
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#define BYTE3_MASK 0x00ffffff;
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static ssize_t iwl_dbgfs_sram_read(struct file *file,
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char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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u32 val;
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char buf[1024];
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ssize_t ret;
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int i;
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int pos = 0;
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struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
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printk(KERN_DEBUG "offset is: 0x%x\tlen is: 0x%x\n",
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priv->dbgfs->sram_offset, priv->dbgfs->sram_len);
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iwl4965_grab_nic_access(priv);
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for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
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val = iwl4965_read_targ_mem(priv, priv->dbgfs->sram_offset + \
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priv->dbgfs->sram_len - i);
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if (i < 4) {
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switch (i) {
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case 1:
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val &= BYTE1_MASK;
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break;
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case 2:
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val &= BYTE2_MASK;
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break;
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case 3:
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val &= BYTE3_MASK;
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break;
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}
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}
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pos += sprintf(buf+pos, "0x%08x ", val);
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}
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pos += sprintf(buf+pos, "\n");
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iwl4965_release_nic_access(priv);
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ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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return ret;
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}
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static ssize_t iwl_dbgfs_sram_write(struct file *file,
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const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct iwl_priv *priv = file->private_data;
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char buf[64];
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int buf_size;
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u32 offset, len;
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memset(buf, 0, sizeof(buf));
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buf_size = min(count, sizeof(buf) - 1);
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if (copy_from_user(buf, user_buf, buf_size))
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return -EFAULT;
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if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
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priv->dbgfs->sram_offset = offset;
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priv->dbgfs->sram_len = len;
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} else {
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priv->dbgfs->sram_offset = 0;
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priv->dbgfs->sram_len = 0;
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}
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return count;
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}
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static ssize_t iwl_dbgfs_stations_read(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 iwl_priv *priv = (struct iwl_priv *)file->private_data;
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struct iwl4965_station_entry *station;
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int max_sta = priv->hw_setting.max_stations;
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char *buf;
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int i, j, pos = 0;
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ssize_t ret;
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/* Add 30 for initial string */
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const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
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DECLARE_MAC_BUF(mac);
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buf = kmalloc(bufsz, GFP_KERNEL);
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if(!buf)
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return -ENOMEM;
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pos += sprintf(buf+pos, "num of stations: %d\n\n",
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priv->num_stations);
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for (i = 0; i < max_sta; i++) {
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station = &priv->stations[i];
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if (station->used) {
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pos += sprintf(buf+pos, "station %d:\ngeneral data:\n",
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i+1);
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print_mac(mac, station->sta.sta.addr);
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pos += sprintf(buf+pos, "id: %u\n",
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station->sta.sta.sta_id);
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pos += sprintf(buf+pos, "mode: %u\n",
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station->sta.mode);
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pos += sprintf(buf+pos, "flags: 0x%x\n",
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station->sta.station_flags_msk);
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pos += sprintf(buf+pos, "ps_status: %u\n",
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station->ps_status);
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pos += sprintf(buf+pos, "tid data:\n");
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pos += sprintf(buf+pos, "seq_num\t\ttxq_id\t");
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pos += sprintf(buf+pos, "frame_count\twait_for_ba\t");
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pos += sprintf(buf+pos, "start_idx\tbitmap0\t");
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pos += sprintf(buf+pos, "bitmap1\trate_n_flags\n");
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for (j = 0; j < MAX_TID_COUNT; j++) {
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pos += sprintf(buf+pos, "[%d]:\t\t%u\t",
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j, station->tid[j].seq_number);
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pos += sprintf(buf+pos, "%u\t\t%u\t\t%u\t\t",
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station->tid[j].agg.txq_id,
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station->tid[j].agg.frame_count,
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station->tid[j].agg.wait_for_ba);
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pos += sprintf(buf+pos, "%u\t%llu\t%u\n",
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station->tid[j].agg.start_idx,
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station->tid[j].agg.bitmap,
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station->tid[j].agg.rate_n_flags);
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}
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pos += sprintf(buf+pos, "\n");
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}
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}
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ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
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kfree(buf);
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return ret;
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}
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DEBUGFS_READ_WRITE_FILE_OPS(sram);
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DEBUGFS_READ_FILE_OPS(stations);
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DEBUGFS_READ_FILE_OPS(rx_statistics);
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DEBUGFS_READ_FILE_OPS(tx_statistics);
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/*
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* Create the debugfs files and directories
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*
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*/
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int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
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{
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struct iwl_debugfs *dbgfs;
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dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
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if (!dbgfs) {
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goto err;
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}
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priv->dbgfs = dbgfs;
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dbgfs->name = name;
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dbgfs->dir_drv = debugfs_create_dir(name, NULL);
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if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)){
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goto err;
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}
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DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
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DEBUGFS_ADD_FILE(sram, data);
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DEBUGFS_ADD_FILE(stations, data);
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DEBUGFS_ADD_FILE(rx_statistics, data);
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DEBUGFS_ADD_FILE(tx_statistics, data);
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return 0;
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err:
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IWL_ERROR("Can't open the debugfs directory\n");
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iwl_dbgfs_unregister(priv);
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return -ENOENT;
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}
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EXPORT_SYMBOL(iwl_dbgfs_register);
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/**
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* Remove the debugfs files and directories
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*
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*/
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void iwl_dbgfs_unregister(struct iwl_priv *priv)
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{
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if (!(priv->dbgfs))
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return;
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DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics);
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DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics);
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DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
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DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
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DEBUGFS_REMOVE(priv->dbgfs->dir_data);
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DEBUGFS_REMOVE(priv->dbgfs->dir_drv);
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kfree(priv->dbgfs);
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priv->dbgfs = NULL;
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}
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EXPORT_SYMBOL(iwl_dbgfs_unregister);
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@ -8690,6 +8690,11 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
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goto out_release_irq;
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}
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err = iwl_dbgfs_register(priv, DRV_NAME);
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if (err) {
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IWL_ERROR("failed to create debugfs files\n");
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goto out_remove_sysfs;
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}
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/* nic init */
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iwl4965_set_bit(priv, CSR_GIO_CHICKEN_BITS,
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CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
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|
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@ -8700,13 +8705,13 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
|
|||
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
|
||||
if (err < 0) {
|
||||
IWL_DEBUG_INFO("Failed to init the card\n");
|
||||
goto out_remove_sysfs;
|
||||
goto out_remove_dbgfs;
|
||||
}
|
||||
/* Read the EEPROM */
|
||||
err = iwl_eeprom_init(priv);
|
||||
if (err) {
|
||||
IWL_ERROR("Unable to init EEPROM\n");
|
||||
goto out_remove_sysfs;
|
||||
goto out_remove_dbgfs;
|
||||
}
|
||||
/* MAC Address location in EEPROM same for 3945/4965 */
|
||||
iwl_eeprom_get_mac(priv, priv->mac_addr);
|
||||
|
|
@ -8716,7 +8721,7 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
|
|||
err = iwl4965_init_channel_map(priv);
|
||||
if (err) {
|
||||
IWL_ERROR("initializing regulatory failed: %d\n", err);
|
||||
goto out_remove_sysfs;
|
||||
goto out_remove_dbgfs;
|
||||
}
|
||||
|
||||
err = iwl4965_init_geos(priv);
|
||||
|
|
@ -8743,6 +8748,8 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
|
|||
iwl4965_free_geos(priv);
|
||||
out_free_channel_map:
|
||||
iwl4965_free_channel_map(priv);
|
||||
out_remove_dbgfs:
|
||||
iwl_dbgfs_unregister(priv);
|
||||
out_remove_sysfs:
|
||||
sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
|
||||
|
||||
|
|
@ -8787,6 +8794,7 @@ static void iwl4965_pci_remove(struct pci_dev *pdev)
|
|||
}
|
||||
}
|
||||
|
||||
iwl_dbgfs_unregister(priv);
|
||||
sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
|
||||
|
||||
iwl4965_dealloc_ucode_pci(priv);
|
||||
|
|
|
|||
Loading…
Reference in New Issue