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path: root/drivers/net/wireless/b43legacy/phy.c
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Diffstat (limited to 'drivers/net/wireless/b43legacy/phy.c')
-rw-r--r--drivers/net/wireless/b43legacy/phy.c75
1 files changed, 36 insertions, 39 deletions
diff --git a/drivers/net/wireless/b43legacy/phy.c b/drivers/net/wireless/b43legacy/phy.c
index 491e518e4aeb..c16febbdbf5d 100644
--- a/drivers/net/wireless/b43legacy/phy.c
+++ b/drivers/net/wireless/b43legacy/phy.c
@@ -3,7 +3,7 @@
Broadcom B43legacy wireless driver
Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
- Stefano Brivio <st3@riseup.net>
+ Stefano Brivio <stefano.brivio@polimi.it>
Michael Buesch <mbuesch@freenet.de>
Danny van Dyk <kugelfang@gentoo.org>
Andreas Jaggi <andreas.jaggi@waterwave.ch>
@@ -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)
@@ -441,7 +437,7 @@ static void b43legacy_phy_inita(struct b43legacy_wldev *dev)
might_sleep();
b43legacy_phy_setupg(dev);
- if (dev->dev->bus->sprom.r1.boardflags_lo & B43legacy_BFL_PACTRL)
+ if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL)
b43legacy_phy_write(dev, 0x046E, 0x03CF);
}
@@ -543,7 +539,7 @@ static void b43legacy_phy_initb4(struct b43legacy_wldev *dev)
if (phy->radio_ver == 0x2050)
b43legacy_phy_write(dev, 0x002A, 0x88C2);
b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
- if (dev->dev->bus->sprom.r1.boardflags_lo & B43legacy_BFL_RSSI) {
+ if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
b43legacy_calc_nrssi_slope(dev);
b43legacy_calc_nrssi_threshold(dev);
}
@@ -699,7 +695,7 @@ static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
b43legacy_radio_write16(dev, 0x005A, 0x0088);
b43legacy_radio_write16(dev, 0x005B, 0x006B);
b43legacy_radio_write16(dev, 0x005C, 0x000F);
- if (dev->dev->bus->sprom.r1.boardflags_lo & 0x8000) {
+ if (dev->dev->bus->sprom.boardflags_lo & 0x8000) {
b43legacy_radio_write16(dev, 0x005D, 0x00FA);
b43legacy_radio_write16(dev, 0x005E, 0x00D8);
} else {
@@ -797,7 +793,7 @@ static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
b43legacy_phy_write(dev, 0x0062, 0x0007);
b43legacy_radio_init2050(dev);
b43legacy_phy_lo_g_measure(dev);
- if (dev->dev->bus->sprom.r1.boardflags_lo &
+ if (dev->dev->bus->sprom.boardflags_lo &
B43legacy_BFL_RSSI) {
b43legacy_calc_nrssi_slope(dev);
b43legacy_calc_nrssi_threshold(dev);
@@ -921,7 +917,7 @@ static void b43legacy_calc_loopback_gain(struct b43legacy_wldev *dev)
b43legacy_phy_read(dev, 0x0811) | 0x0100);
b43legacy_phy_write(dev, 0x0812,
b43legacy_phy_read(dev, 0x0812) & 0xCFFF);
- if (dev->dev->bus->sprom.r1.boardflags_lo & B43legacy_BFL_EXTLNA) {
+ if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_EXTLNA) {
if (phy->rev >= 7) {
b43legacy_phy_write(dev, 0x0811,
b43legacy_phy_read(dev, 0x0811)
@@ -1072,7 +1068,7 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
b43legacy_phy_write(dev, 0x0036,
(b43legacy_phy_read(dev, 0x0036)
& 0x0FFF) | (phy->txctl2 << 12));
- if (dev->dev->bus->sprom.r1.boardflags_lo &
+ if (dev->dev->bus->sprom.boardflags_lo &
B43legacy_BFL_PACTRL)
b43legacy_phy_write(dev, 0x002E, 0x8075);
else
@@ -1087,7 +1083,7 @@ static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
b43legacy_phy_write(dev, 0x080F, 0x8078);
}
- if (!(dev->dev->bus->sprom.r1.boardflags_lo & B43legacy_BFL_RSSI)) {
+ if (!(dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI)) {
/* The specs state to update the NRSSI LT with
* the value 0x7FFFFFFF here. I think that is some weird
* compiler optimization in the original driver.
@@ -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;
@@ -1838,9 +1833,9 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
estimated_pwr = b43legacy_phy_estimate_power_out(dev, average);
- max_pwr = dev->dev->bus->sprom.r1.maxpwr_bg;
+ max_pwr = dev->dev->bus->sprom.maxpwr_bg;
- if ((dev->dev->bus->sprom.r1.boardflags_lo
+ if ((dev->dev->bus->sprom.boardflags_lo
& B43legacy_BFL_PACTRL) &&
(phy->type == B43legacy_PHYTYPE_G))
max_pwr -= 0x3;
@@ -1848,7 +1843,7 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
b43legacywarn(dev->wl, "Invalid max-TX-power value in SPROM."
"\n");
max_pwr = 74; /* fake it */
- dev->dev->bus->sprom.r1.maxpwr_bg = max_pwr;
+ dev->dev->bus->sprom.maxpwr_bg = max_pwr;
}
/* Use regulatory information to get the maximum power.
@@ -1858,7 +1853,8 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
* and 1.5 dBm (a safety factor??). The result is in Q5.2 format
* which accounts for the factor of 4 */
#define REG_MAX_PWR 20
- max_pwr = min(REG_MAX_PWR * 4 - dev->dev->bus->sprom.r1.antenna_gain_bg
+ max_pwr = min(REG_MAX_PWR * 4
+ - dev->dev->bus->sprom.antenna_gain.ghz24.a0
- 0x6, max_pwr);
/* find the desired power in Q5.2 - power_level is in dBm
@@ -1918,7 +1914,7 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
txpower = 3;
radio_attenuation += 2;
baseband_attenuation += 2;
- } else if (dev->dev->bus->sprom.r1.boardflags_lo
+ } else if (dev->dev->bus->sprom.boardflags_lo
& B43legacy_BFL_PACTRL) {
baseband_attenuation += 4 *
(radio_attenuation - 2);
@@ -1943,13 +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
@@ -2000,9 +1996,9 @@ int b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev *dev)
B43legacy_WARN_ON(!(phy->type == B43legacy_PHYTYPE_B ||
phy->type == B43legacy_PHYTYPE_G));
- pab0 = (s16)(dev->dev->bus->sprom.r1.pa0b0);
- pab1 = (s16)(dev->dev->bus->sprom.r1.pa0b1);
- pab2 = (s16)(dev->dev->bus->sprom.r1.pa0b2);
+ pab0 = (s16)(dev->dev->bus->sprom.pa0b0);
+ pab1 = (s16)(dev->dev->bus->sprom.pa0b1);
+ pab2 = (s16)(dev->dev->bus->sprom.pa0b2);
if ((dev->dev->bus->chip_id == 0x4301) && (phy->radio_ver != 0x2050)) {
phy->idle_tssi = 0x34;
@@ -2013,9 +2009,10 @@ int b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev *dev)
if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
pab0 != -1 && pab1 != -1 && pab2 != -1) {
/* The pabX values are set in SPROM. Use them. */
- if ((s8)dev->dev->bus->sprom.r1.itssi_bg != 0 &&
- (s8)dev->dev->bus->sprom.r1.itssi_bg != -1)
- phy->idle_tssi = (s8)(dev->dev->bus->sprom.r1.itssi_bg);
+ if ((s8)dev->dev->bus->sprom.itssi_bg != 0 &&
+ (s8)dev->dev->bus->sprom.itssi_bg != -1)
+ phy->idle_tssi = (s8)(dev->dev->bus->sprom.
+ itssi_bg);
else
phy->idle_tssi = 62;
dyn_tssi2dbm = kmalloc(64, GFP_KERNEL);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.