diff options
| author | Stefano Brivio <stefano.brivio@polimi.it> | 2008-04-14 00:57:03 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-04-16 15:59:57 -0400 |
| commit | 3e2c40ef09f397b0123fc0233d5d0531c217dc39 (patch) | |
| tree | d245bb9e7ce830b53f270993a9703fe907a4e4dc /drivers/net/wireless/b43legacy/main.c | |
| parent | 245cbe7a65f3e17999de276ea1c84538f3a7451e (diff) | |
b43legacy: fix TBTT and PU timings
This fixes some timings for pre-TBTT and synthetic PU.
The patch by Michael Buesch has been ported to b43legacy.
Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43legacy/main.c')
| -rw-r--r-- | drivers/net/wireless/b43legacy/main.c | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index f518e796bdec..2422a5dab1d2 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -3005,6 +3005,34 @@ static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev, b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry); } +static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev, + bool idle) { + u16 pu_delay = 1050; + + if (b43legacy_is_mode(dev->wl, 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); + + b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, + B43legacy_SHM_SH_SPUWKUP, pu_delay); +} + +/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */ +static void b43legacy_set_pretbtt(struct b43legacy_wldev *dev) +{ + u16 pretbtt; + + /* The time value is in microseconds. */ + if (b43legacy_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS)) + pretbtt = 2; + else + pretbtt = 250; + b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, + B43legacy_SHM_SH_PRETBTT, pretbtt); + b43legacy_write16(dev, B43legacy_MMIO_TSF_CFP_PRETBTT, pretbtt); +} + /* Shutdown a wireless core */ /* Locking: wl->mutex */ static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev) @@ -3191,9 +3219,7 @@ static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev) if (err) goto err_chip_exit; - b43legacy_write16(dev, 0x0612, 0x0050); - b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0416, 0x0050); - b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0414, 0x01F4); + b43legacy_set_synth_pu_delay(dev, 1); ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */ b43legacy_upload_card_macaddress(dev); @@ -3249,6 +3275,8 @@ static int b43legacy_op_add_interface(struct ieee80211_hw *hw, spin_lock_irqsave(&wl->irq_lock, flags); b43legacy_adjust_opmode(dev); + b43legacy_set_pretbtt(dev); + b43legacy_set_synth_pu_delay(dev, 0); b43legacy_upload_card_macaddress(dev); spin_unlock_irqrestore(&wl->irq_lock, flags); |