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ath9k: Add ATH9K_DEBUG configuration option

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Make debugging configurable, and add a module parameter
to give the debug mask.
Add debug.c to hold all debug specific code.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2008-11-28 22:19:02 +05:30 committed by John W. Linville
parent 04bd463809
commit 88b126af94
5 changed files with 75 additions and 17 deletions
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11
drivers/net/wireless/ath9k/Kconfig
View File

@ -9,3 +9,14 @@ config ATH9K
Atheros IEEE 802.11n AR5008 and AR9001 family of chipsets.
If you choose to build a module, it'll be called ath9k.
config ATH9K_DEBUG
bool "Atheros ath9k debugging"
depends on ATH9K
---help---
Say Y, if you need ath9k to display debug messages.
Pass the debug mask as a module parameter:
modprobe ath9k debug=0x00002000
Look in ath9k/core.h for possible debug masks

2
drivers/net/wireless/ath9k/Makefile
View File

@ -11,4 +11,6 @@ ath9k-y += hw.o \
xmit.o \
rc.o
ath9k-$(CONFIG_ATH9K_DEBUG) += debug.o
obj-$(CONFIG_ATH9K) += ath9k.o

21
drivers/net/wireless/ath9k/core.h
View File

@ -105,6 +105,24 @@ enum ATH_DEBUG {
#define DBG_DEFAULT (ATH_DBG_FATAL)
#ifdef CONFIG_ATH9K_DEBUG
void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...);
void ath9k_init_debug(struct ath_softc *sc);
#else
static inline void DPRINTF(struct ath_softc *sc, int dbg_mask,
const char *fmt, ...)
{
}
static inline ath9k_init_debug(struct ath_softc *sc)
{
}
#endif
struct ath_config {
u32 ath_aggr_prot;
u16 txpowlimit;
@ -619,7 +637,9 @@ struct ath_softc {
u8 sc_myaddr[ETH_ALEN];
u8 sc_bssidmask[ETH_ALEN];
#ifdef CONFIG_ATH9K_DEBUG
int sc_debug;
#endif
u32 sc_intrstatus;
u32 sc_flags; /* SC_OP_* */
unsigned int rx_filter;
@ -713,7 +733,6 @@ struct ath_softc {
struct ath_ani sc_ani;
};
void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...);
int ath_reset(struct ath_softc *sc, bool retry_tx);
int ath_get_hal_qnum(u16 queue, struct ath_softc *sc);
int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc);

40
drivers/net/wireless/ath9k/debug.c Normal file
View File

@ -0,0 +1,40 @@
/*
* Copyright (c) 2008 Atheros Communications Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "core.h"
static unsigned int ath9k_debug = DBG_DEFAULT;
module_param_named(debug, ath9k_debug, uint, 0);
void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...)
{
if (!sc)
return;
if (sc->sc_debug & dbg_mask) {
va_list args;
va_start(args, fmt);
printk(KERN_DEBUG "ath9k: ");
vprintk(fmt, args);
va_end(args);
}
}
void ath9k_init_debug(struct ath_softc *sc)
{
sc->sc_debug = ath9k_debug;
}

18
drivers/net/wireless/ath9k/main.c
View File

@ -38,21 +38,6 @@ static struct pci_device_id ath_pci_id_table[] __devinitdata = {
static void ath_detach(struct ath_softc *sc);
void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...)
{
if (!sc)
return;
if (sc->sc_debug & dbg_mask) {
va_list args;
va_start(args, fmt);
printk(KERN_DEBUG "ath9k: ");
vprintk(fmt, args);
va_end(args);
}
}
/* return bus cachesize in 4B word units */
static void bus_read_cachesize(struct ath_softc *sc, int *csz)
@ -1325,7 +1310,8 @@ static int ath_init(u16 devid, struct ath_softc *sc)
/* XXX: hardware will not be ready until ath_open() being called */
sc->sc_flags |= SC_OP_INVALID;
sc->sc_debug = DBG_DEFAULT;
ath9k_init_debug(sc);
spin_lock_init(&sc->sc_resetlock);
tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);