path: root/drivers/net/wireless/ath/ath5k/debug.c

/*
 * Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>
 *
 *  This file is free software: you may copy, redistribute and/or modify it
 *  under the terms of the GNU General Public License as published by the
 *  Free Software Foundation, either version 2 of the License, or (at your
 *  option) any later version.
 *
 *  This file is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *
 * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
 * Copyright (c) 2004-2005 Atheros Communications, Inc.
 * Copyright (c) 2006 Devicescape Software, Inc.
 * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
 * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
 *    redistribution must be conditioned upon including a substantially
 *    similar Disclaimer requirement for further binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGES.
 */

#include "base.h"
#include "debug.h"

static unsigned int ath5k_debug;
module_param_named(debug, ath5k_debug, uint, 0);


#ifdef CONFIG_ATH5K_DEBUG

#include <linux/seq_file.h>
#include "reg.h"
#include "ani.h"

static struct dentry *ath5k_global_debugfs;

static int ath5k_debugfs_open(struct inode *inode, struct file *file)
{
	file->private_data = inode->i_private;
	return 0;
}


/* debugfs: registers */

struct reg {
	const char *name;
	int addr;
};

#define REG_STRUCT_INIT(r) { #r, r }

/* just a few random registers, might want to add more */
static const struct reg regs[] = {
	REG_STRUCT_INIT(AR5K_CR),
	REG_STRUCT_INIT(AR5K_RXDP),
	REG_STRUCT_INIT(AR5K_CFG),
	REG_STRUCT_INIT(AR5K_IER),
	REG_STRUCT_INIT(AR5K_BCR),
	REG_STRUCT_INIT(AR5K_RTSD0),
	REG_STRUCT_INIT(AR5K_RTSD1),
	REG_STRUCT_INIT(AR5K_TXCFG),
	REG_STRUCT_INIT(AR5K_RXCFG),
	REG_STRUCT_INIT(AR5K_RXJLA),
	REG_STRUCT_INIT(AR5K_MIBC),
	REG_STRUCT_INIT(AR5K_TOPS),
	REG_STRUCT_INIT(AR5K_RXNOFRM),
	REG_STRUCT_INIT(AR5K_TXNOFRM),
	REG_STRUCT_INIT(AR5K_RPGTO),
	REG_STRUCT_INIT(AR5K_RFCNT),
	REG_STRUCT_INIT(AR5K_MISC),
	REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
	REG_STRUCT_INIT(AR5K_ISR),
	REG_STRUCT_INIT(AR5K_PISR),
	REG_STRUCT_INIT(AR5K_SISR0),
	REG_STRUCT_INIT(AR5K_SISR1),
	REG_STRUCT_INIT(AR5K_SISR2),
	REG_STRUCT_INIT(AR5K_SISR3),
	REG_STRUCT_INIT(AR5K_SISR4),
	REG_STRUCT_INIT(AR5K_IMR),
	REG_STRUCT_INIT(AR5K_PIMR),
	REG_STRUCT_INIT(AR5K_SIMR0),
	REG_STRUCT_INIT(AR5K_SIMR1),
	REG_STRUCT_INIT(AR5K_SIMR2),
	REG_STRUCT_INIT(AR5K_SIMR3),
	REG_STRUCT_INIT(AR5K_SIMR4),
	REG_STRUCT_INIT(AR5K_DCM_ADDR),
	REG_STRUCT_INIT(AR5K_DCCFG),
	REG_STRUCT_INIT(AR5K_CCFG),
	REG_STRUCT_INIT(AR5K_CPC0),
	REG_STRUCT_INIT(AR5K_CPC1),
	REG_STRUCT_INIT(AR5K_CPC2),
	REG_STRUCT_INIT(AR5K_CPC3),
	REG_STRUCT_INIT(AR5K_CPCOVF),
	REG_STRUCT_INIT(AR5K_RESET_CTL),
	REG_STRUCT_INIT(AR5K_SLEEP_CTL),
	REG_STRUCT_INIT(AR5K_INTPEND),
	REG_STRUCT_INIT(AR5K_SFR),
	REG_STRUCT_INIT(AR5K_PCICFG),
	REG_STRUCT_INIT(AR5K_GPIOCR),
	REG_STRUCT_INIT(AR5K_GPIODO),
	REG_STRUCT_INIT(AR5K_SREV),
};

static void *reg_start(struct seq_file *seq, loff_t *pos)
{
	return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
}

static void reg_stop(struct seq_file *seq, void *p)
{
	/* nothing to do */
}

static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
{
	++*pos;
	return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
}

static int reg_show(struct seq_file *seq, void *p)
{
	struct ath5k_softc *sc = seq->private;
	struct reg *r = p;
	seq_print