diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/b43legacy/b43legacy.h | 16 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/main.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/phy.c | 35 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/phy.h | 14 | ||||
| -rw-r--r-- | drivers/net/wireless/b43legacy/radio.c | 7 |
5 files changed, 28 insertions, 48 deletions
diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h index 8352a4e1cfc9..93419adb925e 100644 --- a/drivers/net/wireless/b43legacy/b43legacy.h +++ b/drivers/net/wireless/b43legacy/b43legacy.h @@ -415,7 +415,6 @@ struct b43legacy_phy { u8 calibrated:1; u8 radio_rev; /* Radio revision */ - bool locked; /* Only used in b43legacy_phy_{un}lock() */ bool dyn_tssi_tbl; /* tssi2dbm is kmalloc()ed. */ /* ACI (adjacent channel interference) flags. */ @@ -458,11 +457,6 @@ struct b43legacy_phy { s16 lna_gain; /* LNA */ s16 pga_gain; /* PGA */ - /* PHY lock for core.rev < 3 - * This lock is only used by b43legacy_phy_{un}lock() - */ - spinlock_t lock; - /* Desired TX power level (in dBm). This is set by the user and * adjusted in b43legacy_phy_xmitpower(). */ u8 power_level; @@ -486,9 +480,6 @@ struct b43legacy_phy { u16 txpwr_offset; }; -#ifdef CONFIG_B43LEGACY_DEBUG - bool manual_txpower_control; /* Manual TX-power control enabled? */ -#endif /* Current Interference Mitigation mode */ int interfmode; /* Stack of saved values from the Interference Mitigation code. @@ -516,6 +507,13 @@ struct b43legacy_phy { /* PHY TX errors counter. */ atomic_t txerr_cnt; + +#if B43legacy_DEBUG + /* Manual TX-power control enabled? */ + bool manual_txpower_control; + /* PHY registers locked by b43legacy_phy_lock()? */ + bool phy_locked; +#endif /* B43legacy_DEBUG */ }; /* Data structures for DMA transmission, per 80211 core. */ diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index 2d5735ddad8c..4ed4243feeaa 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -2847,8 +2847,6 @@ static void setup_struct_phy_for_init(struct b43legacy_wldev *dev, memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig)); memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos)); - /* Flags */ - phy->locked = 0; /* Assume the radio is enabled. If it's not enabled, the state will * immediately get fixed on the first periodic work run. */ dev->radio_hw_enable = 1; @@ -2881,7 +2879,6 @@ static void setup_struct_phy_for_init(struct b43legacy_wldev *dev, phy->lofcal = 0xFFFF; phy->initval = 0xFFFF; - spin_lock_init(&phy->lock); phy->interfmode = B43legacy_INTERFMODE_NONE; phy->channel = 0xFF; } @@ -3013,7 +3010,6 @@ static void prepare_phy_data_for_init(struct b43legacy_wldev *dev) /* Flags */ phy->calibrated = 0; - phy->locked = 0; if (phy->_lo_pairs) memset(phy->_lo_pairs, 0, diff --git a/drivers/net/wireless/b43legacy/phy.c b/drivers/net/wireless/b43legacy/phy.c index 57c668f575fc..c16febbdbf5d 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 diff --git a/drivers/net/wireless/b43legacy/phy.h b/drivers/net/wireless/b43legacy/phy.h index efa4c5c54a86..ecbe409f9a94 100644 --- a/drivers/net/wireless/b43legacy/phy.h +++ b/drivers/net/wireless/b43legacy/phy.h @@ -171,18 +171,8 @@ void b43legacy_put_attenuation_into_ranges(int *_bbatt, int *_rfatt); struct b43legacy_wldev; -void b43legacy_raw_phy_lock(struct b43legacy_wldev *dev); -#define b43legacy_phy_lock(bcm, flags) \ - do { \ - local_irq_save(flags); \ - b43legacy_raw_phy_lock(bcm); \ - } while (0) -void b43legacy_raw_phy_unlock(struct b43legacy_wldev *dev); -#define b43legacy_phy_unlock(bcm, flags) \ - do { \ - b43legacy_raw_phy_unlock(bcm); \ - local_irq_restore(flags); \ - } while (0) +void b43legacy_phy_lock(struct b43legacy_wldev *dev); +void b43legacy_phy_unlock(struct b43legacy_wldev *dev); /* Card uses the loopback gain stuff */ #define has_loopback_gain(phy) \ diff --git a/drivers/net/wireless/b43legacy/radio.c b/drivers/net/wireless/b43legacy/radio.c index 1a72eb0f8f66..318a270cf9b4 100644 --- a/drivers/net/wireless/b43legacy/radio.c +++ b/drivers/net/wireless/b43legacy/radio.c @@ -92,6 +92,7 @@ void b43legacy_radio_lock(struct b43legacy_wldev *dev) u32 status; status = b43legacy_read32(dev, B43legacy_MMIO_STATUS_BITFIELD); + B43legacy_WARN_ON(status & B43legacy_SBF_RADIOREG_LOCK); status |= B43legacy_SBF_RADIOREG_LOCK; b43legacy_write32(dev, B43legacy_MMIO_STATUS_BITFIELD, status); mmiowb(); @@ -104,6 +105,7 @@ void b43legacy_radio_unlock(struct b43legacy_wldev *dev) b43legacy_read16(dev, B43legacy_MMIO_PHY_VER); /* dummy read */ status = b43legacy_read32(dev, B43legacy_MMIO_STATUS_BITFIELD); + B43legacy_WARN_ON(!(status & B43legacy_SBF_RADIOREG_LOCK)); status &= ~B43legacy_SBF_RADIOREG_LOCK; b43legacy_write32(dev, B43legacy_MMIO_STATUS_BITFIELD, status); mmiowb(); @@ -284,12 +286,11 @@ u8 b43legacy_radio_aci_scan(struct b43legacy_wldev *dev) unsigned int j; unsigned int start; unsigned int end; - unsigned long phylock_flags; if (!((phy->type == B43legacy_PHYTYPE_G) && (phy->rev > 0))) return 0; - b43legacy_phy_lock(dev, phylock_flags); + b43legacy_phy_lock(dev); b43legacy_radio_lock(dev); b43legacy_phy_write(dev, 0x0802, b43legacy_phy_read(dev, 0x0802) & 0xFFFC); @@ -323,7 +324,7 @@ u8 b43legacy_radio_aci_scan(struct b43legacy_wldev *dev) ret[j] = 1; } b43legacy_radio_unlock(dev); - b43legacy_phy_unlock(dev, phylock_flags); + b43legacy_phy_unlock(dev); return ret[channel - 1]; } |