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b43: Fix TBTT and PU timings 

This fixes some timings for pre-TBTT and synthetic PU.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Buesch 2008-04-03 18:56:19 +02:00 committed by John W. Linville
parent 7b58416397
commit d59f720d88
2 changed files with 39 additions and 8 deletions
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1
drivers/net/wireless/b43/b43.h
View File

@ -111,6 +111,7 @@
#define B43_MMIO_GPIO_MASK 0x49E
#define B43_MMIO_TSF_CFP_START_LOW 0x604
#define B43_MMIO_TSF_CFP_START_HIGH 0x606
#define B43_MMIO_TSF_CFP_PRETBTT 0x612
#define B43_MMIO_TSF_0 0x632 /* core rev < 3 only */
#define B43_MMIO_TSF_1 0x634 /* core rev < 3 only */
#define B43_MMIO_TSF_2 0x636 /* core rev < 3 only */

46
drivers/net/wireless/b43/main.c
View File

@ -3690,6 +3690,41 @@ static void b43_set_retry_limits(struct b43_wldev *dev,
long_retry);
}
static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
{
u16 pu_delay;
/* The time value is in microseconds. */
if (dev->phy.type == B43_PHYTYPE_A)
pu_delay = 3700;
else
pu_delay = 1050;
if ((dev->wl->if_type == IEEE80211_IF_TYPE_IBSS) || idle)
pu_delay = 500;
if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
pu_delay = max(pu_delay, (u16)2400);
b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
}
/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
static void b43_set_pretbtt(struct b43_wldev *dev)
{
u16 pretbtt;
/* The time value is in microseconds. */
if (dev->wl->if_type == IEEE80211_IF_TYPE_IBSS) {
pretbtt = 2;
} else {
if (dev->phy.type == B43_PHYTYPE_A)
pretbtt = 120;
else
pretbtt = 250;
}
b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
}
/* Shutdown a wireless core */
/* Locking: wl->mutex */
static void b43_wireless_core_exit(struct b43_wldev *dev)
@ -3821,14 +3856,7 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
if (err)
goto err_chip_exit;
b43_qos_init(dev);
//FIXME
#if 1
b43_write16(dev, 0x0612, 0x0050);
b43_shm_write16(dev, B43_SHM_SHARED, 0x0416, 0x0050);
b43_shm_write16(dev, B43_SHM_SHARED, 0x0414, 0x01F4);
#endif
b43_set_synth_pu_delay(dev, 1);
b43_bluetooth_coext_enable(dev);
ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
@ -3888,6 +3916,8 @@ static int b43_op_add_interface(struct ieee80211_hw *hw,
spin_lock_irqsave(&wl->irq_lock, flags);
b43_adjust_opmode(dev);
b43_set_pretbtt(dev);
b43_set_synth_pu_delay(dev, 0);
b43_upload_card_macaddress(dev);
spin_unlock_irqrestore(&wl->irq_lock, flags);