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Diffstat (limited to 'drivers/net/wireless/b43')
-rw-r--r--drivers/net/wireless/b43/b43.h17
-rw-r--r--drivers/net/wireless/b43/debugfs.c6
-rw-r--r--drivers/net/wireless/b43/main.c4
-rw-r--r--drivers/net/wireless/b43/phy.c60
-rw-r--r--drivers/net/wireless/b43/phy.h14
5 files changed, 36 insertions, 65 deletions
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index 086a9c6c2b07..5a1a790a105b 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -476,7 +476,6 @@ struct b43_phy {
u16 radio_ver; /* Radio version */
u8 radio_rev; /* Radio revision */
- bool locked; /* Only used in b43_phy_{un}lock() */
bool dyn_tssi_tbl; /* tssi2dbm is kmalloc()ed. */
/* ACI (adjacent channel interference) flags. */
@@ -513,11 +512,6 @@ struct b43_phy {
s16 lna_gain; /* LNA */
s16 pga_gain; /* PGA */
- /* PHY lock for core.rev < 3
- * This lock is only used by b43_phy_{un}lock()
- */
- spinlock_t lock;
-
/* Desired TX power level (in dBm).
* This is set by the user and adjusted in b43_phy_xmitpower(). */
u8 power_level;
@@ -528,9 +522,7 @@ struct b43_phy {
struct b43_bbatt bbatt;
struct b43_rfatt rfatt;
u8 tx_control; /* B43_TXCTL_XXX */
-#ifdef CONFIG_B43_DEBUG
- bool manual_txpower_control; /* Manual TX-power control enabled? */
-#endif
+
/* Hardware Power Control enabled? */
bool hardware_power_control;
@@ -571,6 +563,13 @@ struct b43_phy {
B43_OFDMTAB_DIRECTION_READ,
B43_OFDMTAB_DIRECTION_WRITE,
} ofdmtab_addr_direction;
+
+#if B43_DEBUG
+ /* Manual TX-power control enabled? */
+ bool manual_txpower_control;
+ /* PHY registers locked by b43_phy_lock()? */
+ bool phy_locked;
+#endif /* B43_DEBUG */
};
/* Data structures for DMA transmission, per 80211 core. */
diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c
index 93e5030aa6c3..e38ed0fe72e9 100644
--- a/drivers/net/wireless/b43/debugfs.c
+++ b/drivers/net/wireless/b43/debugfs.c
@@ -222,8 +222,6 @@ out:
static int txpower_g_write_file(struct b43_wldev *dev,
const char *buf, size_t count)
{
- unsigned long phy_flags;
-
if (dev->phy.type != B43_PHYTYPE_G)
return -ENODEV;
if ((count >= 4) && (memcmp(buf, "auto", 4) == 0)) {
@@ -247,12 +245,12 @@ static int txpower_g_write_file(struct b43_wldev *dev,
dev->phy.tx_control |= B43_TXCTL_PA2DB;
if (pa3db)
dev->phy.tx_control |= B43_TXCTL_PA3DB;
- b43_phy_lock(dev, phy_flags);
+ b43_phy_lock(dev);
b43_radio_lock(dev);
b43_set_txpower_g(dev, &dev->phy.bbatt,
&dev->phy.rfatt, dev->phy.tx_control);
b43_radio_unlock(dev);
- b43_phy_unlock(dev, phy_flags);
+ b43_phy_unlock(dev);
}
return 0;
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 7125af6f242a..ea63a9928803 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3146,9 +3146,6 @@ static void setup_struct_phy_for_init(struct b43_wldev *dev,
memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
- /* Flags */
- phy->locked = 0;
-
phy->aci_enable = 0;
phy->aci_wlan_automatic = 0;
phy->aci_hw_rssi = 0;
@@ -3175,7 +3172,6 @@ static void setup_struct_phy_for_init(struct b43_wldev *dev,
phy->lofcal = 0xFFFF;
phy->initval = 0xFFFF;
- spin_lock_init(&phy->lock);
phy->interfmode = B43_INTERFMODE_NONE;
phy->channel = 0xFF;
diff --git a/drivers/net/wireless/b43/phy.c b/drivers/net/wireless/b43/phy.c
index 67b8a922b337..2abf125aa2cf 100644
--- a/drivers/net/wireless/b43/phy.c
+++ b/drivers/net/wireless/b43/phy.c
@@ -228,42 +228,30 @@ static void b43_shm_clear_tssi(struct b43_wldev *dev)
}
}
-void b43_raw_phy_lock(struct b43_wldev *dev)
+/* Lock the PHY registers against concurrent access from the microcode.
+ * This lock is nonrecursive. */
+void b43_phy_lock(struct b43_wldev *dev)
{
- struct b43_phy *phy = &dev->phy;
-
- B43_WARN_ON(!irqs_disabled());
-
- /* We had a check for MACCTL==0 here, but I think that doesn't
- * make sense, as MACCTL is never 0 when this is called.
- * --mb */
- B43_WARN_ON(b43_read32(dev, B43_MMIO_MACCTL) == 0);
+#if B43_DEBUG
+ B43_WARN_ON(dev->phy.phy_locked);
+ dev->phy.phy_locked = 1;
+#endif
+ B43_WARN_ON(dev->dev->id.revision < 3);
- if (dev->dev->id.revision < 3) {
- b43_mac_suspend(dev);
- spin_lock(&phy->lock);
- } else {
- if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP))
- b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
- }
- phy->locked = 1;
+ if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP))
+ b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
}
-void b43_raw_phy_unlock(struct b43_wldev *dev)
+void b43_phy_unlock(struct b43_wldev *dev)
{
- struct b43_phy *phy = &dev->phy;
+#if B43_DEBUG
+ B43_WARN_ON(!dev->phy.phy_locked);
+ dev->phy.phy_locked = 0;
+#endif
+ B43_WARN_ON(dev->dev->id.revision < 3);
- B43_WARN_ON(!irqs_disabled());
- if (dev->dev->id.revision < 3) {
- if (phy->locked) {
- spin_unlock(&phy->lock);
- b43_mac_enable(dev);
- }
- } else {
- if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP))
- b43_power_saving_ctl_bits(dev, 0);
- }
- phy->locked = 0;
+ if (!b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP))
+ b43_power_saving_ctl_bits(dev, 0);
}
/* Different PHYs require different register routing flags.
@@ -1730,7 +1718,6 @@ void b43_phy_xmitpower(struct b43_wldev *dev)
int rfatt_delta, bbatt_delta;
int rfatt, bbatt;
u8 tx_control;
- unsigned long phylock_flags;
tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x0058);
v0 = (s8) (tmp & 0x00FF);
@@ -1861,13 +1848,13 @@ void b43_phy_xmitpower(struct b43_wldev *dev)
phy->bbatt.att = bbatt;
/* Adjust the hardware */
- b43_phy_lock(dev, phylock_flags);
+ b43_phy_lock(dev);
b43_radio_lock(dev);
b43_set_txpower_g(dev, &phy->bbatt, &phy->rfatt,
phy->tx_control);
b43_lo_g_ctl_mark_cur_used(dev);
b43_radio_unlock(dev);
- b43_phy_unlock(dev, phylock_flags);
+ b43_phy_unlock(dev);
break;
}
default:
@@ -2158,6 +2145,7 @@ void b43_radio_lock(struct b43_wldev *dev)
u32 macctl;
macctl = b43_read32(dev, B43_MMIO_MACCTL);
+ B43_WARN_ON(macctl & B43_MACCTL_RADIOLOCK);
macctl |= B43_MACCTL_RADIOLOCK;
b43_write32(dev, B43_MMIO_MACCTL, macctl);
/* Commit the write and wait for the device
@@ -2174,6 +2162,7 @@ void b43_radio_unlock(struct b43_wldev *dev)
b43_read16(dev, B43_MMIO_PHY_VER);
/* unlock */
macctl = b43_read32(dev, B43_MMIO_MACCTL);
+ B43_WARN_ON(!(macctl & B43_MACCTL_RADIOLOCK));
macctl &= ~B43_MACCTL_RADIOLOCK;
b43_write32(dev, B43_MMIO_MACCTL, macctl);
}
@@ -2355,12 +2344,11 @@ u8 b43_radio_aci_scan(struct b43_wldev * dev)
u8 ret[13];
unsigned int channel = phy->channel;
unsigned int i, j, start, end;
- unsigned long phylock_flags;
if (!((phy->type == B43_PHYTYPE_G) && (phy->rev > 0)))
return 0;
- b43_phy_lock(dev, phylock_flags);
+ b43_phy_lock(dev);
b43_radio_lock(dev);
b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) & 0xFFFC);
b43_phy_write(dev, B43_PHY_G_CRS,
@@ -2389,7 +2377,7 @@ u8 b43_radio_aci_scan(struct b43_wldev * dev)
ret[j] = 1;
}
b43_radio_unlock(dev);
- b43_phy_unlock(dev, phylock_flags);
+ b43_phy_unlock(dev);
return ret[channel - 1];
}
diff --git a/drivers/net/wireless/b43/phy.h b/drivers/net/wireless/b43/phy.h
index 4ee01d534ba1..31bd4d87b404 100644
--- a/drivers/net/wireless/b43/phy.h
+++ b/drivers/net/wireless/b43/phy.h
@@ -199,18 +199,8 @@ enum {
#define B43_PHYVER_TYPE_SHIFT 8
#define B43_PHYVER_VERSION 0x00FF
-void b43_raw_phy_lock(struct b43_wldev *dev);
-#define b43_phy_lock(dev, flags) \
- do { \
- local_irq_save(flags); \
- b43_raw_phy_lock(dev); \
- } while (0)
-void b43_raw_phy_unlock(struct b43_wldev *dev);
-#define b43_phy_unlock(dev, flags) \
- do { \
- b43_raw_phy_unlock(dev); \
- local_irq_restore(flags); \
- } while (0)
+void b43_phy_lock(struct b43_wldev *dev);
+void b43_phy_unlock(struct b43_wldev *dev);
u16 b43_phy_read(struct b43_wldev *dev, u16 offset);
void b43_phy_write(struct b43_wldev *dev, u16 offset, u16 val);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-15 08:24:12 +0000