diff options
Diffstat (limited to 'drivers/net/wireless/b43legacy/phy.c')
| -rw-r--r-- | drivers/net/wireless/b43legacy/phy.c | 35 |
1 files changed, 15 insertions, 20 deletions
diff --git a/drivers/net/wireless/b43legacy/phy.c b/drivers/net/wireless/b43legacy/phy.c index 57c668f575f..c16febbdbf5 100644 --- a/drivers/net/wireless/b43legacy/phy.c +++ b/drivers/net/wireless/b43legacy/phy.c @@ -91,40 +91,36 @@ void b43legacy_voluntary_preempt(void) #endif /* CONFIG_PREEMPT */ } -void b43legacy_raw_phy_lock(struct b43legacy_wldev *dev) +/* Lock the PHY registers against concurrent access from the microcode. + * This lock is nonrecursive. */ +void b43legacy_phy_lock(struct b43legacy_wldev *dev) { - struct b43legacy_phy *phy = &dev->phy; +#if B43legacy_DEBUG + B43legacy_WARN_ON(dev->phy.phy_locked); + dev->phy.phy_locked = 1; +#endif - B43legacy_WARN_ON(!irqs_disabled()); - if (b43legacy_read32(dev, B43legacy_MMIO_STATUS_BITFIELD) == 0) { - phy->locked = 0; - return; - } if (dev->dev->id.revision < 3) { b43legacy_mac_suspend(dev); - spin_lock(&phy->lock); } else { if (!b43legacy_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) b43legacy_power_saving_ctl_bits(dev, -1, 1); } - phy->locked = 1; } -void b43legacy_raw_phy_unlock(struct b43legacy_wldev *dev) +void b43legacy_phy_unlock(struct b43legacy_wldev *dev) { - struct b43legacy_phy *phy = &dev->phy; +#if B43legacy_DEBUG + B43legacy_WARN_ON(!dev->phy.phy_locked); + dev->phy.phy_locked = 0; +#endif - B43legacy_WARN_ON(!irqs_disabled()); if (dev->dev->id.revision < 3) { - if (phy->locked) { - spin_unlock(&phy->lock); - b43legacy_mac_enable(dev); - } + b43legacy_mac_enable(dev); } else { if (!b43legacy_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) b43legacy_power_saving_ctl_bits(dev, -1, -1); } - phy->locked = 0; } u16 b43legacy_phy_read(struct b43legacy_wldev *dev, u16 offset) @@ -1789,7 +1785,6 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev) s16 baseband_att_delta; s16 radio_attenuation; s16 baseband_attenuation; - unsigned long phylock_flags; if (phy->savedpctlreg == 0xFFFF) return; @@ -1944,13 +1939,13 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev) phy->bbatt = baseband_attenuation; /* Adjust the hardware */ - b43legacy_phy_lock(dev, phylock_flags); + b43legacy_phy_lock(dev); b43legacy_radio_lock(dev); b43legacy_radio_set_txpower_bg(dev, baseband_attenuation, radio_attenuation, txpower); b43legacy_phy_lo_mark_current_used(dev); b43legacy_radio_unlock(dev); - b43legacy_phy_unlock(dev, phylock_flags); + b43legacy_phy_unlock(dev); } static inline |