![Tomas Winkler](/assets/img/avatar_default.png)
This patch fixes errors reported by checkpatch in iwlwifi drivers Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
432 lines
13 KiB
C
432 lines
13 KiB
C
/******************************************************************************
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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-dev.h"
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#include "iwl-debug.h"
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#include "iwl-core.h"
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#include "iwl-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_ADD_BOOL(name, parent, ptr) do { \
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dbgfs->dbgfs_##parent##_files.file_##name = \
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debugfs_create_bool(#name, 0644, dbgfs->dir_##parent, ptr); \
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if (IS_ERR(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_WRITE_FILE_OPS(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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.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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const size_t bufsz = sizeof(buf);
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pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
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priv->tx_stats[0].cnt);
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pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
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priv->tx_stats[1].cnt);
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pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
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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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const size_t bufsz = sizeof(buf);
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pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n",
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priv->rx_stats[0].cnt);
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pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n",
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priv->rx_stats[1].cnt);
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pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n",
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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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const size_t bufsz = sizeof(buf);
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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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iwl_grab_nic_access(priv);
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for (i = priv->dbgfs->sram_len; i > 0; i -= 4) {
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val = iwl_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 += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
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}
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pos += scnprintf(buf + pos, bufsz - pos, "\n");
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iwl_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 iwl_station_entry *station;
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int max_sta = priv->hw_params.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 += scnprintf(buf + pos, bufsz - 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 += scnprintf(buf + pos, bufsz - pos,
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"station %d:\ngeneral data:\n", i+1);
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print_mac(mac, station->sta.sta.addr);
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pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
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station->sta.sta.sta_id);
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pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
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station->sta.mode);
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pos += scnprintf(buf + pos, bufsz - pos,
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"flags: 0x%x\n",
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station->sta.station_flags_msk);
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pos += scnprintf(buf + pos, bufsz - pos,
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"ps_status: %u\n", station->ps_status);
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pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
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pos += scnprintf(buf + pos, bufsz - pos,
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"seq_num\t\ttxq_id");
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pos += scnprintf(buf + pos, bufsz - pos,
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"\tframe_count\twait_for_ba\t");
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pos += scnprintf(buf + pos, bufsz - pos,
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"start_idx\tbitmap0\t");
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pos += scnprintf(buf + pos, bufsz - pos,
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"bitmap1\trate_n_flags");
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pos += scnprintf(buf + pos, bufsz - pos, "\n");
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for (j = 0; j < MAX_TID_COUNT; j++) {
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pos += scnprintf(buf + pos, bufsz - pos,
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"[%d]:\t\t%u", j,
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station->tid[j].seq_number);
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pos += scnprintf(buf + pos, bufsz - pos,
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"\t%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 += scnprintf(buf + pos, bufsz - pos,
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"%u\t%llu\t%u",
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station->tid[j].agg.start_idx,
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(unsigned long long)station->tid[j].agg.bitmap,
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station->tid[j].agg.rate_n_flags);
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pos += scnprintf(buf + pos, bufsz - pos, "\n");
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}
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pos += scnprintf(buf + pos, bufsz - 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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static ssize_t iwl_dbgfs_eeprom_read(struct file *file,
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char __user *user_buf,
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size_t count,
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loff_t *ppos)
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{
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ssize_t ret;
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struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
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int pos = 0, ofs = 0, buf_size = 0;
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const u8 *ptr;
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char *buf;
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size_t eeprom_len = priv->cfg->eeprom_size;
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buf_size = 4 * eeprom_len + 256;
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if (eeprom_len % 16) {
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IWL_ERROR("EEPROM size is not multiple of 16.\n");
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return -ENODATA;
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}
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/* 4 characters for byte 0xYY */
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buf = kzalloc(buf_size, GFP_KERNEL);
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if (!buf) {
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IWL_ERROR("Can not allocate Buffer\n");
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return -ENOMEM;
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}
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ptr = priv->eeprom;
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for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
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pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
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hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
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buf_size - pos, 0);
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pos += strlen(buf);
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if (buf_size - pos > 0)
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buf[pos++] = '\n';
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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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static ssize_t iwl_dbgfs_log_event_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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u32 event_log_flag;
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char buf[8];
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int buf_size;
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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, "%d", &event_log_flag) != 1)
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return -EFAULT;
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if (event_log_flag == 1)
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iwl_dump_nic_event_log(priv);
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return count;
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}
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DEBUGFS_READ_WRITE_FILE_OPS(sram);
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DEBUGFS_WRITE_FILE_OPS(log_event);
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DEBUGFS_READ_FILE_OPS(eeprom);
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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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struct dentry *phyd = priv->hw->wiphy->debugfsdir;
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int ret = 0;
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dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL);
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if (!dbgfs) {
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ret = -ENOMEM;
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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, phyd);
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if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) {
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ret = -ENOENT;
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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_DIR(rf, dbgfs->dir_drv);
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DEBUGFS_ADD_FILE(eeprom, data);
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DEBUGFS_ADD_FILE(sram, data);
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DEBUGFS_ADD_FILE(log_event, 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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DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
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DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
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&priv->disable_chain_noise_cal);
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DEBUGFS_ADD_BOOL(disable_tx_power, rf, &priv->disable_tx_power_cal);
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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 ret;
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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_eeprom);
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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_log_event);
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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->dbgfs_rf_files.file_disable_sensitivity);
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DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);
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DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power);
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DEBUGFS_REMOVE(priv->dbgfs->dir_rf);
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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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