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8aada63cc4
Avoid processing garbage data by NULL terminating the strings. Signed-off-by: Djalal Harouni <tixxdz@opendz.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1042 lines
31 KiB
C
1042 lines
31 KiB
C
/*
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* Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>
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*
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* This file is free software: you may copy, redistribute and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 2 of the License, or (at your
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* option) any later version.
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*
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* This file 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, see <http://www.gnu.org/licenses/>.
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*
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*
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* This file incorporates work covered by the following copyright and
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* permission notice:
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*
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* Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
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* Copyright (c) 2004-2005 Atheros Communications, Inc.
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* Copyright (c) 2006 Devicescape Software, Inc.
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* Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
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* Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/export.h>
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#include <linux/moduleparam.h>
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#include <linux/seq_file.h>
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#include <linux/list.h>
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#include "debug.h"
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#include "ath5k.h"
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#include "reg.h"
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#include "base.h"
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static unsigned int ath5k_debug;
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module_param_named(debug, ath5k_debug, uint, 0);
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/* debugfs: registers */
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struct reg {
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const char *name;
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int addr;
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};
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#define REG_STRUCT_INIT(r) { #r, r }
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/* just a few random registers, might want to add more */
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static const struct reg regs[] = {
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REG_STRUCT_INIT(AR5K_CR),
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REG_STRUCT_INIT(AR5K_RXDP),
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REG_STRUCT_INIT(AR5K_CFG),
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REG_STRUCT_INIT(AR5K_IER),
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REG_STRUCT_INIT(AR5K_BCR),
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REG_STRUCT_INIT(AR5K_RTSD0),
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REG_STRUCT_INIT(AR5K_RTSD1),
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REG_STRUCT_INIT(AR5K_TXCFG),
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REG_STRUCT_INIT(AR5K_RXCFG),
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REG_STRUCT_INIT(AR5K_RXJLA),
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REG_STRUCT_INIT(AR5K_MIBC),
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REG_STRUCT_INIT(AR5K_TOPS),
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REG_STRUCT_INIT(AR5K_RXNOFRM),
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REG_STRUCT_INIT(AR5K_TXNOFRM),
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REG_STRUCT_INIT(AR5K_RPGTO),
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REG_STRUCT_INIT(AR5K_RFCNT),
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REG_STRUCT_INIT(AR5K_MISC),
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REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
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REG_STRUCT_INIT(AR5K_ISR),
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REG_STRUCT_INIT(AR5K_PISR),
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REG_STRUCT_INIT(AR5K_SISR0),
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REG_STRUCT_INIT(AR5K_SISR1),
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REG_STRUCT_INIT(AR5K_SISR2),
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REG_STRUCT_INIT(AR5K_SISR3),
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REG_STRUCT_INIT(AR5K_SISR4),
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REG_STRUCT_INIT(AR5K_IMR),
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REG_STRUCT_INIT(AR5K_PIMR),
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REG_STRUCT_INIT(AR5K_SIMR0),
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REG_STRUCT_INIT(AR5K_SIMR1),
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REG_STRUCT_INIT(AR5K_SIMR2),
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REG_STRUCT_INIT(AR5K_SIMR3),
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REG_STRUCT_INIT(AR5K_SIMR4),
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REG_STRUCT_INIT(AR5K_DCM_ADDR),
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REG_STRUCT_INIT(AR5K_DCCFG),
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REG_STRUCT_INIT(AR5K_CCFG),
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REG_STRUCT_INIT(AR5K_CPC0),
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REG_STRUCT_INIT(AR5K_CPC1),
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REG_STRUCT_INIT(AR5K_CPC2),
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REG_STRUCT_INIT(AR5K_CPC3),
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REG_STRUCT_INIT(AR5K_CPCOVF),
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REG_STRUCT_INIT(AR5K_RESET_CTL),
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REG_STRUCT_INIT(AR5K_SLEEP_CTL),
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REG_STRUCT_INIT(AR5K_INTPEND),
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REG_STRUCT_INIT(AR5K_SFR),
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REG_STRUCT_INIT(AR5K_PCICFG),
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REG_STRUCT_INIT(AR5K_GPIOCR),
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REG_STRUCT_INIT(AR5K_GPIODO),
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REG_STRUCT_INIT(AR5K_SREV),
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};
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static void *reg_start(struct seq_file *seq, loff_t *pos)
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{
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return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
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}
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static void reg_stop(struct seq_file *seq, void *p)
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{
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/* nothing to do */
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}
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static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
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{
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++*pos;
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return *pos < ARRAY_SIZE(regs) ? (void *)®s[*pos] : NULL;
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}
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static int reg_show(struct seq_file *seq, void *p)
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{
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struct ath5k_hw *ah = seq->private;
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struct reg *r = p;
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seq_printf(seq, "%-25s0x%08x\n", r->name,
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ath5k_hw_reg_read(ah, r->addr));
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return 0;
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}
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static const struct seq_operations register_seq_ops = {
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.start = reg_start,
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.next = reg_next,
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.stop = reg_stop,
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.show = reg_show
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};
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static int open_file_registers(struct inode *inode, struct file *file)
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{
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struct seq_file *s;
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int res;
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res = seq_open(file, ®ister_seq_ops);
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if (res == 0) {
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s = file->private_data;
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s->private = inode->i_private;
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}
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return res;
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}
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static const struct file_operations fops_registers = {
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.open = open_file_registers,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = seq_release,
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.owner = THIS_MODULE,
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};
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/* debugfs: beacons */
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static ssize_t read_file_beacon(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 ath5k_hw *ah = file->private_data;
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char buf[500];
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unsigned int len = 0;
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unsigned int v;
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u64 tsf;
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v = ath5k_hw_reg_read(ah, AR5K_BEACON);
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len += snprintf(buf + len, sizeof(buf) - len,
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"%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
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"AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
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(v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
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len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
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"AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
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len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
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"AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
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v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
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len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
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"AR5K_TIMER0 (TBTT)", v, v);
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v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
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len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
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"AR5K_TIMER1 (DMA)", v, v >> 3);
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v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
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len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
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"AR5K_TIMER2 (SWBA)", v, v >> 3);
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v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
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len += snprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
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"AR5K_TIMER3 (ATIM)", v, v);
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tsf = ath5k_hw_get_tsf64(ah);
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len += snprintf(buf + len, sizeof(buf) - len,
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"TSF\t\t0x%016llx\tTU: %08x\n",
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(unsigned long long)tsf, TSF_TO_TU(tsf));
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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 ssize_t write_file_beacon(struct file *file,
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const char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct ath5k_hw *ah = file->private_data;
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char buf[20];
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count = min_t(size_t, count, sizeof(buf) - 1);
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if (copy_from_user(buf, userbuf, count))
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return -EFAULT;
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buf[count] = '\0';
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if (strncmp(buf, "disable", 7) == 0) {
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AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
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pr_info("debugfs disable beacons\n");
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} else if (strncmp(buf, "enable", 6) == 0) {
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AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
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pr_info("debugfs enable beacons\n");
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}
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return count;
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}
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static const struct file_operations fops_beacon = {
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.read = read_file_beacon,
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.write = write_file_beacon,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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/* debugfs: reset */
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static ssize_t write_file_reset(struct file *file,
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const char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct ath5k_hw *ah = file->private_data;
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ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
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ieee80211_queue_work(ah->hw, &ah->reset_work);
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return count;
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}
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static const struct file_operations fops_reset = {
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.write = write_file_reset,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = noop_llseek,
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};
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/* debugfs: debug level */
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static const struct {
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enum ath5k_debug_level level;
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const char *name;
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const char *desc;
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} dbg_info[] = {
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{ ATH5K_DEBUG_RESET, "reset", "reset and initialization" },
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{ ATH5K_DEBUG_INTR, "intr", "interrupt handling" },
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{ ATH5K_DEBUG_MODE, "mode", "mode init/setup" },
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{ ATH5K_DEBUG_XMIT, "xmit", "basic xmit operation" },
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{ ATH5K_DEBUG_BEACON, "beacon", "beacon handling" },
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{ ATH5K_DEBUG_CALIBRATE, "calib", "periodic calibration" },
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{ ATH5K_DEBUG_TXPOWER, "txpower", "transmit power setting" },
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{ ATH5K_DEBUG_LED, "led", "LED management" },
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{ ATH5K_DEBUG_DUMPBANDS, "dumpbands", "dump bands" },
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{ ATH5K_DEBUG_DMA, "dma", "dma start/stop" },
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{ ATH5K_DEBUG_ANI, "ani", "adaptive noise immunity" },
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{ ATH5K_DEBUG_DESC, "desc", "descriptor chains" },
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{ ATH5K_DEBUG_ANY, "all", "show all debug levels" },
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};
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static ssize_t read_file_debug(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 ath5k_hw *ah = file->private_data;
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char buf[700];
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unsigned int len = 0;
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unsigned int i;
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len += snprintf(buf + len, sizeof(buf) - len,
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"DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
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for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
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len += snprintf(buf + len, sizeof(buf) - len,
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"%10s %c 0x%08x - %s\n", dbg_info[i].name,
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ah->debug.level & dbg_info[i].level ? '+' : ' ',
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dbg_info[i].level, dbg_info[i].desc);
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}
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len += snprintf(buf + len, sizeof(buf) - len,
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"%10s %c 0x%08x - %s\n", dbg_info[i].name,
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ah->debug.level == dbg_info[i].level ? '+' : ' ',
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dbg_info[i].level, dbg_info[i].desc);
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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 ssize_t write_file_debug(struct file *file,
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const char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct ath5k_hw *ah = file->private_data;
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unsigned int i;
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char buf[20];
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count = min_t(size_t, count, sizeof(buf) - 1);
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if (copy_from_user(buf, userbuf, count))
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return -EFAULT;
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buf[count] = '\0';
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for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
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if (strncmp(buf, dbg_info[i].name,
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strlen(dbg_info[i].name)) == 0) {
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ah->debug.level ^= dbg_info[i].level; /* toggle bit */
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break;
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}
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}
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return count;
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}
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static const struct file_operations fops_debug = {
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.read = read_file_debug,
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.write = write_file_debug,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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/* debugfs: antenna */
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static ssize_t read_file_antenna(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 ath5k_hw *ah = file->private_data;
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char buf[700];
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unsigned int len = 0;
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unsigned int i;
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unsigned int v;
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len += snprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
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ah->ah_ant_mode);
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len += snprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
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ah->ah_def_ant);
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len += snprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
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ah->ah_tx_ant);
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len += snprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
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for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
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len += snprintf(buf + len, sizeof(buf) - len,
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"[antenna %d]\t%d\t%d\n",
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i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
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}
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len += snprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
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ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
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v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
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len += snprintf(buf + len, sizeof(buf) - len,
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"\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
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v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
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len += snprintf(buf + len, sizeof(buf) - len,
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"AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
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(v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
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len += snprintf(buf + len, sizeof(buf) - len,
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"AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
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(v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
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len += snprintf(buf + len, sizeof(buf) - len,
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"AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
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(v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
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len += snprintf(buf + len, sizeof(buf) - len,
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"AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
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(v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
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v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
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len += snprintf(buf + len, sizeof(buf) - len,
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"\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
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(v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
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v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
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len += snprintf(buf + len, sizeof(buf) - len,
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"AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
|
|
(v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
|
|
|
|
v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
|
|
(v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
|
|
|
|
v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
|
|
v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
|
|
|
|
if (len > sizeof(buf))
|
|
len = sizeof(buf);
|
|
|
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
}
|
|
|
|
static ssize_t write_file_antenna(struct file *file,
|
|
const char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath5k_hw *ah = file->private_data;
|
|
unsigned int i;
|
|
char buf[20];
|
|
|
|
count = min_t(size_t, count, sizeof(buf) - 1);
|
|
if (copy_from_user(buf, userbuf, count))
|
|
return -EFAULT;
|
|
|
|
buf[count] = '\0';
|
|
if (strncmp(buf, "diversity", 9) == 0) {
|
|
ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
|
|
pr_info("debug: enable diversity\n");
|
|
} else if (strncmp(buf, "fixed-a", 7) == 0) {
|
|
ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
|
|
pr_info("debug: fixed antenna A\n");
|
|
} else if (strncmp(buf, "fixed-b", 7) == 0) {
|
|
ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
|
|
pr_info("debug: fixed antenna B\n");
|
|
} else if (strncmp(buf, "clear", 5) == 0) {
|
|
for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
|
|
ah->stats.antenna_rx[i] = 0;
|
|
ah->stats.antenna_tx[i] = 0;
|
|
}
|
|
pr_info("debug: cleared antenna stats\n");
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations fops_antenna = {
|
|
.read = read_file_antenna,
|
|
.write = write_file_antenna,
|
|
.open = simple_open,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
/* debugfs: misc */
|
|
|
|
static ssize_t read_file_misc(struct file *file, char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath5k_hw *ah = file->private_data;
|
|
char buf[700];
|
|
unsigned int len = 0;
|
|
u32 filt = ath5k_hw_get_rx_filter(ah);
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
|
|
ah->bssidmask);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
|
|
filt);
|
|
if (filt & AR5K_RX_FILTER_UCAST)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
|
|
if (filt & AR5K_RX_FILTER_MCAST)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
|
|
if (filt & AR5K_RX_FILTER_BCAST)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
|
|
if (filt & AR5K_RX_FILTER_CONTROL)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
|
|
if (filt & AR5K_RX_FILTER_BEACON)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
|
|
if (filt & AR5K_RX_FILTER_PROM)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " PROM");
|
|
if (filt & AR5K_RX_FILTER_XRPOLL)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " XRPOLL");
|
|
if (filt & AR5K_RX_FILTER_PROBEREQ)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
|
|
if (filt & AR5K_RX_FILTER_PHYERR_5212)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
|
|
if (filt & AR5K_RX_FILTER_RADARERR_5212)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
|
|
if (filt & AR5K_RX_FILTER_PHYERR_5211)
|
|
snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
|
|
if (filt & AR5K_RX_FILTER_RADARERR_5211)
|
|
len += snprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
|
|
ath_opmode_to_string(ah->opmode), ah->opmode);
|
|
|
|
if (len > sizeof(buf))
|
|
len = sizeof(buf);
|
|
|
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
}
|
|
|
|
static const struct file_operations fops_misc = {
|
|
.read = read_file_misc,
|
|
.open = simple_open,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
|
|
/* debugfs: frameerrors */
|
|
|
|
static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath5k_hw *ah = file->private_data;
|
|
struct ath5k_statistics *st = &ah->stats;
|
|
char buf[700];
|
|
unsigned int len = 0;
|
|
int i;
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"RX\n---------------------\n");
|
|
len += snprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
|
|
st->rxerr_crc,
|
|
st->rx_all_count > 0 ?
|
|
st->rxerr_crc * 100 / st->rx_all_count : 0);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
|
|
st->rxerr_phy,
|
|
st->rx_all_count > 0 ?
|
|
st->rxerr_phy * 100 / st->rx_all_count : 0);
|
|
for (i = 0; i < 32; i++) {
|
|
if (st->rxerr_phy_code[i])
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
" phy_err[%u]\t%u\n",
|
|
i, st->rxerr_phy_code[i]);
|
|
}
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
|
|
st->rxerr_fifo,
|
|
st->rx_all_count > 0 ?
|
|
st->rxerr_fifo * 100 / st->rx_all_count : 0);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
|
|
st->rxerr_decrypt,
|
|
st->rx_all_count > 0 ?
|
|
st->rxerr_decrypt * 100 / st->rx_all_count : 0);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
|
|
st->rxerr_mic,
|
|
st->rx_all_count > 0 ?
|
|
st->rxerr_mic * 100 / st->rx_all_count : 0);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
|
|
st->rxerr_proc,
|
|
st->rx_all_count > 0 ?
|
|
st->rxerr_proc * 100 / st->rx_all_count : 0);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
|
|
st->rxerr_jumbo,
|
|
st->rx_all_count > 0 ?
|
|
st->rxerr_jumbo * 100 / st->rx_all_count : 0);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
|
|
st->rx_all_count);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
|
|
st->rx_bytes_count);
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"\nTX\n---------------------\n");
|
|
len += snprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
|
|
st->txerr_retry,
|
|
st->tx_all_count > 0 ?
|
|
st->txerr_retry * 100 / st->tx_all_count : 0);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
|
|
st->txerr_fifo,
|
|
st->tx_all_count > 0 ?
|
|
st->txerr_fifo * 100 / st->tx_all_count : 0);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
|
|
st->txerr_filt,
|
|
st->tx_all_count > 0 ?
|
|
st->txerr_filt * 100 / st->tx_all_count : 0);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
|
|
st->tx_all_count);
|
|
len += snprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
|
|
st->tx_bytes_count);
|
|
|
|
if (len > sizeof(buf))
|
|
len = sizeof(buf);
|
|
|
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
}
|
|
|
|
static ssize_t write_file_frameerrors(struct file *file,
|
|
const char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath5k_hw *ah = file->private_data;
|
|
struct ath5k_statistics *st = &ah->stats;
|
|
char buf[20];
|
|
|
|
count = min_t(size_t, count, sizeof(buf) - 1);
|
|
if (copy_from_user(buf, userbuf, count))
|
|
return -EFAULT;
|
|
|
|
buf[count] = '\0';
|
|
if (strncmp(buf, "clear", 5) == 0) {
|
|
st->rxerr_crc = 0;
|
|
st->rxerr_phy = 0;
|
|
st->rxerr_fifo = 0;
|
|
st->rxerr_decrypt = 0;
|
|
st->rxerr_mic = 0;
|
|
st->rxerr_proc = 0;
|
|
st->rxerr_jumbo = 0;
|
|
st->rx_all_count = 0;
|
|
st->txerr_retry = 0;
|
|
st->txerr_fifo = 0;
|
|
st->txerr_filt = 0;
|
|
st->tx_all_count = 0;
|
|
pr_info("debug: cleared frameerrors stats\n");
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations fops_frameerrors = {
|
|
.read = read_file_frameerrors,
|
|
.write = write_file_frameerrors,
|
|
.open = simple_open,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
|
|
/* debugfs: ani */
|
|
|
|
static ssize_t read_file_ani(struct file *file, char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath5k_hw *ah = file->private_data;
|
|
struct ath5k_statistics *st = &ah->stats;
|
|
struct ath5k_ani_state *as = &ah->ani_state;
|
|
|
|
char buf[700];
|
|
unsigned int len = 0;
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"HW has PHY error counters:\t%s\n",
|
|
ah->ah_capabilities.cap_has_phyerr_counters ?
|
|
"yes" : "no");
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"HW max spur immunity level:\t%d\n",
|
|
as->max_spur_level);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"\nANI state\n--------------------------------------------\n");
|
|
len += snprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
|
|
switch (as->ani_mode) {
|
|
case ATH5K_ANI_MODE_OFF:
|
|
len += snprintf(buf + len, sizeof(buf) - len, "OFF\n");
|
|
break;
|
|
case ATH5K_ANI_MODE_MANUAL_LOW:
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"MANUAL LOW\n");
|
|
break;
|
|
case ATH5K_ANI_MODE_MANUAL_HIGH:
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"MANUAL HIGH\n");
|
|
break;
|
|
case ATH5K_ANI_MODE_AUTO:
|
|
len += snprintf(buf + len, sizeof(buf) - len, "AUTO\n");
|
|
break;
|
|
default:
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"??? (not good)\n");
|
|
break;
|
|
}
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"noise immunity level:\t\t%d\n",
|
|
as->noise_imm_level);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"spur immunity level:\t\t%d\n",
|
|
as->spur_level);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"firstep level:\t\t\t%d\n",
|
|
as->firstep_level);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"OFDM weak signal detection:\t%s\n",
|
|
as->ofdm_weak_sig ? "on" : "off");
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"CCK weak signal detection:\t%s\n",
|
|
as->cck_weak_sig ? "on" : "off");
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"\nMIB INTERRUPTS:\t\t%u\n",
|
|
st->mib_intr);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"beacon RSSI average:\t%d\n",
|
|
(int)ewma_read(&ah->ah_beacon_rssi_avg));
|
|
|
|
#define CC_PRINT(_struct, _field) \
|
|
_struct._field, \
|
|
_struct.cycles > 0 ? \
|
|
_struct._field * 100 / _struct.cycles : 0
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"profcnt tx\t\t%u\t(%d%%)\n",
|
|
CC_PRINT(as->last_cc, tx_frame));
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"profcnt rx\t\t%u\t(%d%%)\n",
|
|
CC_PRINT(as->last_cc, rx_frame));
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"profcnt busy\t\t%u\t(%d%%)\n",
|
|
CC_PRINT(as->last_cc, rx_busy));
|
|
#undef CC_PRINT
|
|
len += snprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
|
|
as->last_cc.cycles);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"listen time\t\t%d\tlast: %d\n",
|
|
as->listen_time, as->last_listen);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
|
|
as->ofdm_errors, as->last_ofdm_errors,
|
|
as->sum_ofdm_errors);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"CCK errors\t\t%u\tlast: %u\tsum: %u\n",
|
|
as->cck_errors, as->last_cck_errors,
|
|
as->sum_cck_errors);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
|
|
ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
|
|
ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
|
|
ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
|
|
ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
|
|
ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
|
|
ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
|
|
|
|
if (len > sizeof(buf))
|
|
len = sizeof(buf);
|
|
|
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
}
|
|
|
|
static ssize_t write_file_ani(struct file *file,
|
|
const char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath5k_hw *ah = file->private_data;
|
|
char buf[20];
|
|
|
|
count = min_t(size_t, count, sizeof(buf) - 1);
|
|
if (copy_from_user(buf, userbuf, count))
|
|
return -EFAULT;
|
|
|
|
buf[count] = '\0';
|
|
if (strncmp(buf, "sens-low", 8) == 0) {
|
|
ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
|
|
} else if (strncmp(buf, "sens-high", 9) == 0) {
|
|
ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
|
|
} else if (strncmp(buf, "ani-off", 7) == 0) {
|
|
ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
|
|
} else if (strncmp(buf, "ani-on", 6) == 0) {
|
|
ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
|
|
} else if (strncmp(buf, "noise-low", 9) == 0) {
|
|
ath5k_ani_set_noise_immunity_level(ah, 0);
|
|
} else if (strncmp(buf, "noise-high", 10) == 0) {
|
|
ath5k_ani_set_noise_immunity_level(ah,
|
|
ATH5K_ANI_MAX_NOISE_IMM_LVL);
|
|
} else if (strncmp(buf, "spur-low", 8) == 0) {
|
|
ath5k_ani_set_spur_immunity_level(ah, 0);
|
|
} else if (strncmp(buf, "spur-high", 9) == 0) {
|
|
ath5k_ani_set_spur_immunity_level(ah,
|
|
ah->ani_state.max_spur_level);
|
|
} else if (strncmp(buf, "fir-low", 7) == 0) {
|
|
ath5k_ani_set_firstep_level(ah, 0);
|
|
} else if (strncmp(buf, "fir-high", 8) == 0) {
|
|
ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
|
|
} else if (strncmp(buf, "ofdm-off", 8) == 0) {
|
|
ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
|
|
} else if (strncmp(buf, "ofdm-on", 7) == 0) {
|
|
ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
|
|
} else if (strncmp(buf, "cck-off", 7) == 0) {
|
|
ath5k_ani_set_cck_weak_signal_detection(ah, false);
|
|
} else if (strncmp(buf, "cck-on", 6) == 0) {
|
|
ath5k_ani_set_cck_weak_signal_detection(ah, true);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations fops_ani = {
|
|
.read = read_file_ani,
|
|
.write = write_file_ani,
|
|
.open = simple_open,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
|
|
/* debugfs: queues etc */
|
|
|
|
static ssize_t read_file_queue(struct file *file, char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath5k_hw *ah = file->private_data;
|
|
char buf[700];
|
|
unsigned int len = 0;
|
|
|
|
struct ath5k_txq *txq;
|
|
struct ath5k_buf *bf, *bf0;
|
|
int i, n;
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"available txbuffers: %d\n", ah->txbuf_len);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
|
|
txq = &ah->txqs[i];
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
"%02d: %ssetup\n", i, txq->setup ? "" : "not ");
|
|
|
|
if (!txq->setup)
|
|
continue;
|
|
|
|
n = 0;
|
|
spin_lock_bh(&txq->lock);
|
|
list_for_each_entry_safe(bf, bf0, &txq->q, list)
|
|
n++;
|
|
spin_unlock_bh(&txq->lock);
|
|
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
" len: %d bufs: %d\n", txq->txq_len, n);
|
|
len += snprintf(buf + len, sizeof(buf) - len,
|
|
" stuck: %d\n", txq->txq_stuck);
|
|
}
|
|
|
|
if (len > sizeof(buf))
|
|
len = sizeof(buf);
|
|
|
|
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
|
|
}
|
|
|
|
static ssize_t write_file_queue(struct file *file,
|
|
const char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct ath5k_hw *ah = file->private_data;
|
|
char buf[20];
|
|
|
|
count = min_t(size_t, count, sizeof(buf) - 1);
|
|
if (copy_from_user(buf, userbuf, count))
|
|
return -EFAULT;
|
|
|
|
buf[count] = '\0';
|
|
if (strncmp(buf, "start", 5) == 0)
|
|
ieee80211_wake_queues(ah->hw);
|
|
else if (strncmp(buf, "stop", 4) == 0)
|
|
ieee80211_stop_queues(ah->hw);
|
|
|
|
return count;
|
|
}
|
|
|
|
|
|
static const struct file_operations fops_queue = {
|
|
.read = read_file_queue,
|
|
.write = write_file_queue,
|
|
.open = simple_open,
|
|
.owner = THIS_MODULE,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
|
|
void
|
|
ath5k_debug_init_device(struct ath5k_hw *ah)
|
|
{
|
|
struct dentry *phydir;
|
|
|
|
ah->debug.level = ath5k_debug;
|
|
|
|
phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
|
|
if (!phydir)
|
|
return;
|
|
|
|
debugfs_create_file("debug", S_IWUSR | S_IRUSR, phydir, ah,
|
|
&fops_debug);
|
|
|
|
debugfs_create_file("registers", S_IRUSR, phydir, ah, &fops_registers);
|
|
|
|
debugfs_create_file("beacon", S_IWUSR | S_IRUSR, phydir, ah,
|
|
&fops_beacon);
|
|
|
|
debugfs_create_file("reset", S_IWUSR, phydir, ah, &fops_reset);
|
|
|
|
debugfs_create_file("antenna", S_IWUSR | S_IRUSR, phydir, ah,
|
|
&fops_antenna);
|
|
|
|
debugfs_create_file("misc", S_IRUSR, phydir, ah, &fops_misc);
|
|
|
|
debugfs_create_file("frameerrors", S_IWUSR | S_IRUSR, phydir, ah,
|
|
&fops_frameerrors);
|
|
|
|
debugfs_create_file("ani", S_IWUSR | S_IRUSR, phydir, ah, &fops_ani);
|
|
|
|
debugfs_create_file("queue", S_IWUSR | S_IRUSR, phydir, ah,
|
|
&fops_queue);
|
|
|
|
debugfs_create_bool("32khz_clock", S_IWUSR | S_IRUSR, phydir,
|
|
&ah->ah_use_32khz_clock);
|
|
}
|
|
|
|
/* functions used in other places */
|
|
|
|
void
|
|
ath5k_debug_dump_bands(struct ath5k_hw *ah)
|
|
{
|
|
unsigned int b, i;
|
|
|
|
if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
|
|
return;
|
|
|
|
BUG_ON(!ah->sbands);
|
|
|
|
for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
|
|
struct ieee80211_supported_band *band = &ah->sbands[b];
|
|
char bname[6];
|
|
switch (band->band) {
|
|
case IEEE80211_BAND_2GHZ:
|
|
strcpy(bname, "2 GHz");
|
|
break;
|
|
case IEEE80211_BAND_5GHZ:
|
|
strcpy(bname, "5 GHz");
|
|
break;
|
|
default:
|
|
printk(KERN_DEBUG "Band not supported: %d\n",
|
|
band->band);
|
|
return;
|
|
}
|
|
printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
|
|
band->n_channels, band->n_bitrates);
|
|
printk(KERN_DEBUG " channels:\n");
|
|
for (i = 0; i < band->n_channels; i++)
|
|
printk(KERN_DEBUG " %3d %d %.4x %.4x\n",
|
|
ieee80211_frequency_to_channel(
|
|
band->channels[i].center_freq),
|
|
band->channels[i].center_freq,
|
|
band->channels[i].hw_value,
|
|
band->channels[i].flags);
|
|
printk(KERN_DEBUG " rates:\n");
|
|
for (i = 0; i < band->n_bitrates; i++)
|
|
printk(KERN_DEBUG " %4d %.4x %.4x %.4x\n",
|
|
band->bitrates[i].bitrate,
|
|
band->bitrates[i].hw_value,
|
|
band->bitrates[i].flags,
|
|
band->bitrates[i].hw_value_short);
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
|
|
struct ath5k_rx_status *rs)
|
|
{
|
|
struct ath5k_desc *ds = bf->desc;
|
|
struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
|
|
|
|
printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
|
|
ds, (unsigned long long)bf->daddr,
|
|
ds->ds_link, ds->ds_data,
|
|
rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
|
|
rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
|
|
!done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
|
|
}
|
|
|
|
void
|
|
ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
|
|
{
|
|
struct ath5k_desc *ds;
|
|
struct ath5k_buf *bf;
|
|
struct ath5k_rx_status rs = {};
|
|
int status;
|
|
|
|
if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
|
|
return;
|
|
|
|
printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
|
|
ath5k_hw_get_rxdp(ah), ah->rxlink);
|
|
|
|
spin_lock_bh(&ah->rxbuflock);
|
|
list_for_each_entry(bf, &ah->rxbuf, list) {
|
|
ds = bf->desc;
|
|
status = ah->ah_proc_rx_desc(ah, ds, &rs);
|
|
if (!status)
|
|
ath5k_debug_printrxbuf(bf, status == 0, &rs);
|
|
}
|
|
spin_unlock_bh(&ah->rxbuflock);
|
|
}
|
|
|
|
void
|
|
ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
|
|
{
|
|
struct ath5k_desc *ds = bf->desc;
|
|
struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
|
|
struct ath5k_tx_status ts = {};
|
|
int done;
|
|
|
|
if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
|
|
return;
|
|
|
|
done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
|
|
|
|
printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
|
|
"%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
|
|
ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
|
|
td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
|
|
td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
|
|
done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
|
|
}
|