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ath5k: remove unused beacon timer code
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Signed-off-by: John W. Linville <linville@tuxdriver.com>
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John W. Linville committed Mar 15, 2010
1 parent a93b7ae commit 200763b
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Showing 2 changed files with 0 additions and 225 deletions.
28 changes: 0 additions & 28 deletions drivers/net/wireless/ath/ath5k/ath5k.h
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Original file line number Diff line number Diff line change
Expand Up @@ -613,28 +613,6 @@ struct ath5k_rx_status {
#define AR5K_BEACON_ENA 0x00800000 /*enable beacon xmit*/
#define AR5K_BEACON_RESET_TSF 0x01000000 /*force a TSF reset*/

#if 0
/**
* struct ath5k_beacon_state - Per-station beacon timer state.
* @bs_interval: in TU's, can also include the above flags
* @bs_cfp_max_duration: if non-zero hw is setup to coexist with a
* Point Coordination Function capable AP
*/
struct ath5k_beacon_state {
u32 bs_next_beacon;
u32 bs_next_dtim;
u32 bs_interval;
u8 bs_dtim_period;
u8 bs_cfp_period;
u16 bs_cfp_max_duration;
u16 bs_cfp_du_remain;
u16 bs_tim_offset;
u16 bs_sleep_duration;
u16 bs_bmiss_threshold;
u32 bs_cfp_next;
};
#endif


/*
* TSF to TU conversion:
Expand Down Expand Up @@ -1212,12 +1190,6 @@ u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah);
void ath5k_hw_set_tsf64(struct ath5k_hw *ah, u64 tsf64);
void ath5k_hw_reset_tsf(struct ath5k_hw *ah);
void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval);
#if 0
int ath5k_hw_set_beacon_timers(struct ath5k_hw *ah,
const struct ath5k_beacon_state *state);
void ath5k_hw_reset_beacon(struct ath5k_hw *ah);
int ath5k_hw_beaconq_finish(struct ath5k_hw *ah, unsigned long phys_addr);
#endif
/* ACK bit rate */
void ath5k_hw_set_ack_bitrate_high(struct ath5k_hw *ah, bool high);
/* Clock rate related functions */
Expand Down
197 changes: 0 additions & 197 deletions drivers/net/wireless/ath/ath5k/pcu.c
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Original file line number Diff line number Diff line change
Expand Up @@ -648,203 +648,6 @@ void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval)

}

#if 0
/*
* Set beacon timers
*/
int ath5k_hw_set_beacon_timers(struct ath5k_hw *ah,
const struct ath5k_beacon_state *state)
{
u32 cfp_period, next_cfp, dtim, interval, next_beacon;

/*
* TODO: should be changed through *state
* review struct ath5k_beacon_state struct
*
* XXX: These are used for cfp period bellow, are they
* ok ? Is it O.K. for tsf here to be 0 or should we use
* get_tsf ?
*/
u32 dtim_count = 0; /* XXX */
u32 cfp_count = 0; /* XXX */
u32 tsf = 0; /* XXX */

ATH5K_TRACE(ah->ah_sc);
/* Return on an invalid beacon state */
if (state->bs_interval < 1)
return -EINVAL;

interval = state->bs_interval;
dtim = state->bs_dtim_period;

/*
* PCF support?
*/
if (state->bs_cfp_period > 0) {
/*
* Enable PCF mode and set the CFP
* (Contention Free Period) and timer registers
*/
cfp_period = state->bs_cfp_period * state->bs_dtim_period *
state->bs_interval;
next_cfp = (cfp_count * state->bs_dtim_period + dtim_count) *
state->bs_interval;

AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1,
AR5K_STA_ID1_DEFAULT_ANTENNA |
AR5K_STA_ID1_PCF);
ath5k_hw_reg_write(ah, cfp_period, AR5K_CFP_PERIOD);
ath5k_hw_reg_write(ah, state->bs_cfp_max_duration,
AR5K_CFP_DUR);
ath5k_hw_reg_write(ah, (tsf + (next_cfp == 0 ? cfp_period :
next_cfp)) << 3, AR5K_TIMER2);
} else {
/* Disable PCF mode */
AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
AR5K_STA_ID1_DEFAULT_ANTENNA |
AR5K_STA_ID1_PCF);
}

/*
* Enable the beacon timer register
*/
ath5k_hw_reg_write(ah, state->bs_next_beacon, AR5K_TIMER0);

/*
* Start the beacon timers
*/
ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, AR5K_BEACON) &
~(AR5K_BEACON_PERIOD | AR5K_BEACON_TIM)) |
AR5K_REG_SM(state->bs_tim_offset ? state->bs_tim_offset + 4 : 0,
AR5K_BEACON_TIM) | AR5K_REG_SM(state->bs_interval,
AR5K_BEACON_PERIOD), AR5K_BEACON);

/*
* Write new beacon miss threshold, if it appears to be valid
* XXX: Figure out right values for min <= bs_bmiss_threshold <= max
* and return if its not in range. We can test this by reading value and
* setting value to a largest value and seeing which values register.
*/

AR5K_REG_WRITE_BITS(ah, AR5K_RSSI_THR, AR5K_RSSI_THR_BMISS,
state->bs_bmiss_threshold);

/*
* Set sleep control register
* XXX: Didn't find this in 5210 code but since this register
* exists also in ar5k's 5210 headers i leave it as common code.
*/
AR5K_REG_WRITE_BITS(ah, AR5K_SLEEP_CTL, AR5K_SLEEP_CTL_SLDUR,
(state->bs_sleep_duration - 3) << 3);

/*
* Set enhanced sleep registers on 5212
*/
if (ah->ah_version == AR5K_AR5212) {
if (state->bs_sleep_duration > state->bs_interval &&
roundup(state->bs_sleep_duration, interval) ==
state->bs_sleep_duration)
interval = state->bs_sleep_duration;

if (state->bs_sleep_duration > dtim && (dtim == 0 ||
roundup(state->bs_sleep_duration, dtim) ==
state->bs_sleep_duration))
dtim = state->bs_sleep_duration;

if (interval > dtim)
return -EINVAL;

next_beacon = interval == dtim ? state->bs_next_dtim :
state->bs_next_beacon;

ath5k_hw_reg_write(ah,
AR5K_REG_SM((state->bs_next_dtim - 3) << 3,
AR5K_SLEEP0_NEXT_DTIM) |
AR5K_REG_SM(10, AR5K_SLEEP0_CABTO) |
AR5K_SLEEP0_ENH_SLEEP_EN |
AR5K_SLEEP0_ASSUME_DTIM, AR5K_SLEEP0);

ath5k_hw_reg_write(ah, AR5K_REG_SM((next_beacon - 3) << 3,
AR5K_SLEEP1_NEXT_TIM) |
AR5K_REG_SM(10, AR5K_SLEEP1_BEACON_TO), AR5K_SLEEP1);

ath5k_hw_reg_write(ah,
AR5K_REG_SM(interval, AR5K_SLEEP2_TIM_PER) |
AR5K_REG_SM(dtim, AR5K_SLEEP2_DTIM_PER), AR5K_SLEEP2);
}

return 0;
}

/*
* Reset beacon timers
*/
void ath5k_hw_reset_beacon(struct ath5k_hw *ah)
{
ATH5K_TRACE(ah->ah_sc);
/*
* Disable beacon timer
*/
ath5k_hw_reg_write(ah, 0, AR5K_TIMER0);

/*
* Disable some beacon register values
*/
AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1,
AR5K_STA_ID1_DEFAULT_ANTENNA | AR5K_STA_ID1_PCF);
ath5k_hw_reg_write(ah, AR5K_BEACON_PERIOD, AR5K_BEACON);
}

/*
* Wait for beacon queue to finish
*/
int ath5k_hw_beaconq_finish(struct ath5k_hw *ah, unsigned long phys_addr)
{
unsigned int i;
int ret;

ATH5K_TRACE(ah->ah_sc);

/* 5210 doesn't have QCU*/
if (ah->ah_version == AR5K_AR5210) {
/*
* Wait for beaconn queue to finish by checking
* Control Register and Beacon Status Register.
*/
for (i = AR5K_TUNE_BEACON_INTERVAL / 2; i > 0; i--) {
if (!(ath5k_hw_reg_read(ah, AR5K_BSR) & AR5K_BSR_TXQ1F)
||
!(ath5k_hw_reg_read(ah, AR5K_CR) & AR5K_BSR_TXQ1F))
break;
udelay(10);
}

/* Timeout... */
if (i <= 0) {
/*
* Re-schedule the beacon queue
*/
ath5k_hw_reg_write(ah, phys_addr, AR5K_NOQCU_TXDP1);
ath5k_hw_reg_write(ah, AR5K_BCR_TQ1V | AR5K_BCR_BDMAE,
AR5K_BCR);

return -EIO;
}
ret = 0;
} else {
/*5211/5212*/
ret = ath5k_hw_register_timeout(ah,
AR5K_QUEUE_STATUS(AR5K_TX_QUEUE_ID_BEACON),
AR5K_QCU_STS_FRMPENDCNT, 0, false);

if (AR5K_REG_READ_Q(ah, AR5K_QCU_TXE, AR5K_TX_QUEUE_ID_BEACON))
return -EIO;
}

return ret;
}
#endif


/*********************\
* Key table functions *
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