X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fb43legacy%2Fphy.c;h=768cccb9b1bafbb4a85d5c2ff77d71900e6b5a0b;hb=49997d75152b3d23c53b0fa730599f2f74c92c65;hp=22a4b3d0186d5da770c79a34ddf4310c8bebe403;hpb=ecaedfa385a6df297e17d6e9f296cc63f12c053f;p=linux-2.6 diff --git a/drivers/net/wireless/b43legacy/phy.c b/drivers/net/wireless/b43legacy/phy.c index 22a4b3d018..768cccb9b1 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 , - Stefano Brivio + Stefano Brivio Michael Buesch Danny van Dyk Andreas Jaggi @@ -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) @@ -144,7 +140,7 @@ void b43legacy_phy_calibrate(struct b43legacy_wldev *dev) { struct b43legacy_phy *phy = &dev->phy; - b43legacy_read32(dev, B43legacy_MMIO_STATUS_BITFIELD); /* Dummy read. */ + b43legacy_read32(dev, B43legacy_MMIO_MACCTL); /* Dummy read. */ if (phy->calibrated) return; if (phy->type == B43legacy_PHYTYPE_G && phy->rev == 1) { @@ -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 @@ -1087,12 +1083,12 @@ 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. * Essentially, what we do here is resetting all NRSSI LT - * entries to -32 (see the limit_value() in nrssi_hw_update()) + * entries to -32 (see the clamp_val() in nrssi_hw_update()) */ b43legacy_nrssi_hw_update(dev, 0xFFFF); b43legacy_calc_nrssi_threshold(dev); @@ -1760,7 +1756,7 @@ static s8 b43legacy_phy_estimate_power_out(struct b43legacy_wldev *dev, s8 tssi) switch (phy->type) { case B43legacy_PHYTYPE_B: case B43legacy_PHYTYPE_G: - tmp = limit_value(tmp, 0x00, 0x3F); + tmp = clamp_val(tmp, 0x00, 0x3F); dbm = phy->tssi2dbm[tmp]; break; default: @@ -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. @@ -1858,12 +1853,13 @@ 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 * and limit it - max_pwr is already in Q5.2 */ - desired_pwr = limit_value(phy->power_level << 2, 0, max_pwr); + desired_pwr = clamp_val(phy->power_level << 2, 0, max_pwr); if (b43legacy_debug(dev, B43legacy_DBG_XMITPOWER)) b43legacydbg(dev->wl, "Current TX power output: " Q52_FMT " dBm, Desired TX power output: " Q52_FMT @@ -1909,7 +1905,7 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev) radio_attenuation++; } } - baseband_attenuation = limit_value(baseband_attenuation, 0, 11); + baseband_attenuation = clamp_val(baseband_attenuation, 0, 11); txpower = phy->txctl1; if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) { @@ -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); @@ -1937,19 +1933,19 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev) } /* Save the control values */ phy->txctl1 = txpower; - baseband_attenuation = limit_value(baseband_attenuation, 0, 11); - radio_attenuation = limit_value(radio_attenuation, 0, 9); + baseband_attenuation = clamp_val(baseband_attenuation, 0, 11); + radio_attenuation = clamp_val(radio_attenuation, 0, 9); phy->rfatt = radio_attenuation; 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 @@ -1983,7 +1979,7 @@ s8 b43legacy_tssi2dbm_entry(s8 entry [], u8 index, s16 pab0, s16 pab1, s16 pab2) f = q; i++; } while (delta >= 2); - entry[index] = limit_value(b43legacy_tssi2dbm_ad(m1 * f, 8192), + entry[index] = clamp_val(b43legacy_tssi2dbm_ad(m1 * f, 8192), -127, 128); return 0; } @@ -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; @@ -2013,14 +2009,15 @@ 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); if (dyn_tssi2dbm == NULL) { - b43legacyerr(dev->wl, "Could not allocate memory" + b43legacyerr(dev->wl, "Could not allocate memory " "for tssi2dbm table\n"); return -ENOMEM; } @@ -2234,16 +2231,16 @@ bit26 = 1; * or the latest PS-Poll packet sent was successful, * set bit26 */ } - status = b43legacy_read32(dev, B43legacy_MMIO_STATUS_BITFIELD); + status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL); if (bit25) - status |= B43legacy_SBF_PS1; + status |= B43legacy_MACCTL_HWPS; else - status &= ~B43legacy_SBF_PS1; + status &= ~B43legacy_MACCTL_HWPS; if (bit26) - status |= B43legacy_SBF_PS2; + status |= B43legacy_MACCTL_AWAKE; else - status &= ~B43legacy_SBF_PS2; - b43legacy_write32(dev, B43legacy_MMIO_STATUS_BITFIELD, status); + status &= ~B43legacy_MACCTL_AWAKE; + b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status); if (bit26 && dev->dev->id.revision >= 5) { for (i = 0; i < 100; i++) { if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,