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ath9k: Cleanup calibration interface 

This patch cleans up the functions dealing with calibration,
using proper return values.
ath9k_hw_per_calibration(), ath9k_hw_calibrate now return bool values
instead of setting error values in the function arguments.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2009-04-13 21:56:48 +05:30 committed by John W. Linville
parent 415f738ecf
commit 379f04407c
3 changed files with 22 additions and 36 deletions
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27
drivers/net/wireless/ath/ath9k/calib.c
View File

@ -238,13 +238,12 @@ static void ath9k_hw_reset_calibration(struct ath_hw *ah,
ah->cal_samples = 0;
}
static void ath9k_hw_per_calibration(struct ath_hw *ah,
static bool ath9k_hw_per_calibration(struct ath_hw *ah,
struct ath9k_channel *ichan,
u8 rxchainmask,
struct hal_cal_list *currCal,
bool *isCalDone)
struct hal_cal_list *currCal)
{
*isCalDone = false;
bool iscaldone = false;
if (currCal->calState == CAL_RUNNING) {
if (!(REG_READ(ah, AR_PHY_TIMING_CTRL4(0)) &
@ -263,7 +262,7 @@ static void ath9k_hw_per_calibration(struct ath_hw *ah,
currCal->calData->calPostProc(ah, numChains);
ichan->CalValid |= currCal->calData->calType;
currCal->calState = CAL_DONE;
*isCalDone = true;
iscaldone = true;
} else {
ath9k_hw_setup_calibration(ah, currCal);
}
@ -271,6 +270,8 @@ static void ath9k_hw_per_calibration(struct ath_hw *ah,
} else if (!(ichan->CalValid & currCal->calData->calType)) {
ath9k_hw_reset_calibration(ah, currCal);
}
return iscaldone;
}
/* Assumes you are talking about the currently configured channel */
@ -841,23 +842,21 @@ static inline void ath9k_hw_9285_pa_cal(struct ath_hw *ah)
}
bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
u8 rxchainmask, bool longcal,
bool *isCalDone)
u8 rxchainmask, bool longcal)
{
bool iscaldone = true;
struct hal_cal_list *currCal = ah->cal_list_curr;
*isCalDone = true;
if (currCal &&
(currCal->calState == CAL_RUNNING ||
currCal->calState == CAL_WAITING)) {
ath9k_hw_per_calibration(ah, chan, rxchainmask, currCal,
isCalDone);
if (*isCalDone) {
iscaldone = ath9k_hw_per_calibration(ah, chan,
rxchainmask, currCal);
if (iscaldone) {
ah->cal_list_curr = currCal = currCal->calNext;
if (currCal->calState == CAL_WAITING) {
*isCalDone = false;
iscaldone = false;
ath9k_hw_reset_calibration(ah, currCal);
}
}
@ -877,7 +876,7 @@ bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
chan->channelFlags &= ~CHANNEL_CW_INT;
}
return true;
return iscaldone;
}
static bool ar9285_clc(struct ath_hw *ah, struct ath9k_channel *chan)

3
drivers/net/wireless/ath/ath9k/calib.h
View File

@ -116,8 +116,7 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah,
void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah);
s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan);
bool ath9k_hw_calibrate(struct ath_hw *ah, struct ath9k_channel *chan,
u8 rxchainmask, bool longcal,
bool *isCalDone);
u8 rxchainmask, bool longcal);
bool ath9k_hw_init_cal(struct ath_hw *ah,
struct ath9k_channel *chan);

28
drivers/net/wireless/ath/ath9k/main.c
View File

@ -367,28 +367,16 @@ static void ath_ani_calibrate(unsigned long data)
/* Perform calibration if necessary */
if (longcal || shortcal) {
bool iscaldone = false;
sc->ani.caldone = ath9k_hw_calibrate(ah, ah->curchan,
sc->rx_chainmask, longcal);
if (ath9k_hw_calibrate(ah, ah->curchan,
sc->rx_chainmask, longcal,
&iscaldone)) {
if (longcal)
sc->ani.noise_floor =
ath9k_hw_getchan_noise(ah,
ah->curchan);
if (longcal)
sc->ani.noise_floor = ath9k_hw_getchan_noise(ah,
ah->curchan);
DPRINTF(sc, ATH_DBG_ANI,
"calibrate chan %u/%x nf: %d\n",
ah->curchan->channel,
ah->curchan->channelFlags,
sc->ani.noise_floor);
} else {
DPRINTF(sc, ATH_DBG_ANY,
"calibrate chan %u/%x failed\n",
ah->curchan->channel,
ah->curchan->channelFlags);
}
sc->ani.caldone = iscaldone;
DPRINTF(sc, ATH_DBG_ANI," calibrate chan %u/%x nf: %d\n",
ah->curchan->channel, ah->curchan->channelFlags,
sc->ani.noise_floor);
}
}